Growing degree days

Growing degree days (GDD) is a weather-based indicator for assessing crop development. It is a calculation used by crop producers that is a measure of heat accumulation used to predict plant and pest development rates such as the date that a crop reaches maturity.
Source: www.farmwest.com

Base temperature



°F

Growing season begins


Growing season ends


Calculation method






Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
2010/2011 71.7 275.6 543.1 852.0 966.3 880.6 666.9 271.1
2011/2012 38.2 286.6 565.7 788.9 996.1 829.5 614.4 247.0
2012/2013 203.9 196.2 630.6 748.4 1003.1 875.2 597.2 287.1
2013/2014 1.9 240.4 480.2 766.5 944.7 773.8 560.1 308.0
2014/2015 18.1 144.8 496.4 743.1 837.9 735.2 591.5 272.4
2015/2016 14.1 188.3 614.1 742.6 868.8 825.1 688.3 231.8
2016/2017 121.7 199.1 388.2 729.9 954.6 938.8 700.8 339.1
2017/2018 85.6 347.7 421.4 750.8 926.9 794.7 643.6 422.6

Cumulative


Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
2010/2011 71.7 347.3 890.4 1742.3 2708.6 3589.2 4256.0 4527.1
2011/2012 38.2 324.7 890.4 1679.2 2675.3 3504.8 4119.2 4366.2
2012/2013 203.9 400.1 1030.7 1779.1 2782.2 3657.3 4254.5 4541.6
2013/2014 1.9 242.3 722.5 1489.0 2433.6 3207.4 3767.5 4075.5
2014/2015 18.1 162.9 659.3 1402.4 2240.2 2975.4 3566.9 3839.3
2015/2016 14.1 202.4 816.5 1559.1 2427.9 3253.0 3941.3 4173.1
2016/2017 121.7 320.7 708.9 1438.8 2393.4 3332.2 4032.9 4372.0
2017/2018 85.6 433.3 854.7 1605.4 2532.3 3327.0 3970.6 4393.1

2010/2011
2011/2012
2012/2013
2013/2014
2014/2015
2015/2016
2016/2017
2017/2018
avg
Mar 71.738.2203.91.918.114.1121.785.6 69.4
Apr 275.6286.6196.2240.4144.8188.3199.1347.7 234.8
May 543.1565.7630.6480.2496.4614.1388.2421.4 517.4
Jun 852.0788.9748.4766.5743.1742.6729.9750.8 765.3
Jul 966.3996.11003.1944.7837.9868.8954.6926.9 937.3
Aug 880.6829.5875.2773.8735.2825.1938.8794.7 831.6
Sep 666.9614.4597.2560.1591.5688.3700.8643.6 632.8
Oct 271.1247.0287.1308.0272.4231.8339.1422.6 297.4

Cumulative

2010/2011
2011/2012
2012/2013
2013/2014
2014/2015
2015/2016
2016/2017
2017/2018
Mar 71.738.2203.91.918.114.1121.785.6
Apr 347.3324.7400.1242.3162.9202.4320.7433.3
May 890.4890.41030.7722.5659.3816.5708.9854.7
Jun 1742.31679.21779.11489.01402.41559.11438.81605.4
Jul 2708.62675.32782.22433.62240.22427.92393.42532.3
Aug 3589.23504.83657.33207.42975.43253.03332.23327.0
Sep 4256.04119.24254.53767.53566.93941.34032.93970.6
Oct 4527.14366.24541.64075.53839.34173.14372.04393.1
4527.14366.24541.64075.53839.34173.14372.04393.1












Month Day 2010/2011
2011/2012
2012/2013
2013/2014
2014/2015
2015/2016
2016/2017
2017/2018
Avg
3 1 004.35000015.6 2.5
3 2 00000000 0.0
3 3 003.200000 0.4
3 4 00000000 0.0
3 5 02000000 0.3
3 6 00000000 0.0
3 7 00000006.75 0.8
3 8 0013.7500013.37.2 4.3
3 9 003.2500011.759 3.0
3 10 01.4000019.350 2.6
3 11 3.25000.83.72.112.20 2.8
3 12 002.91.10000 0.5
3 13 0017.650002.350 2.5
3 14 0.05014.9500000 1.9
3 15 0010.903.2502.70 2.1
3 16 3.850.77.70006.60 2.4
3 17 2.82.19.55003.13.850 2.7
3 18 3.1512.370003.750 3.3
3 19 7.457.111.900000 3.3
3 20 8.05016.7500000 3.1
3 21 8.456.7513.7500003.4 4.0
3 22 6.955.816.102.75000 4.0
3 23 0019.050008.150 3.4
3 24 5.809.350009.80 3.1
3 25 7.4505.80009.916.45 5.0
3 26 001.35007.2500 1.1
3 27 0000000.87.95 1.1
3 28 0.150600.507.0512.05 3.2
3 29 4.808.406.100.657.2 3.4
3 30 00000000 0.0
3 31 9.500.201.751.69.450 2.8
4 1 8.6504.62.80022.151.35 4.9
4 2 11.102.502.351.953.052.85 3.0
4 3 9.1504.0506.4512.8504.95 4.7
4 4 13.915.21200.34.23.2519.05 8.5
4 5 188.053.052.601.65013.85 5.9
4 6 26.050.850.7006.7503.8 4.8
4 7 28.14.552.54.6010.33.850 6.7
4 8 21.2504.915.454.65000 5.8
4 9 2.0507.8523.351.4003.5 4.8
4 10 2.4574.6526.54.350012.5 7.2
4 11 918.5018.7515.93.55820.05 11.7
4 12 12.7512.41.37.2512.451.457.4517.35 9.1
4 13 02.853.45.5518.1510.3011.7 6.5
4 14 1.27.29.45.3517.66.950.48.65 7.1
4 15 8.85.821.37.950.46.51.614.5 8.4
4 16 19.855.523.813.45010.154.323.6 12.6
4 17 6.257.917.0516.85017.39.114.4 11.1
4 18 011.15.816.65018.315.411 9.8
4 19 4.38.259.616.354.78.4516.854.95 9.2
4 20 5.618.4510.054.352.815.79.8519.05 10.7
4 21 2.47.416.8502.657.758.716.15 7.7
4 22 16.901.2011.16.6516.156 7.3
4 23 10.859.905.252.15012.73.2 5.5
4 24 5.621.950.359.652.9506.755.9 6.6
4 25 4.4523.75.555.954.8012.055.3 7.7
4 26 4.325.956.454.9512.93.4521.9511.6 11.4
4 27 3.823.755.25.856.151.1510.718.1 9.3
4 28 020.506.855.058.80.3523.75 8.2
4 29 4.611.056.86.9011.3029.6 8.8
4 30 14.258.755.37.25.5512.854.4520.95 9.9
5 1 24.155.4520.98.118.74.82.1520.7 13.1
5 2 2914.6511.458.1510.1510.513.1517.15 14.3
5 3 2621.316.357.512.1515.2512.457.9 14.9
5 4 23.557.6522.458.7510.417.84.27.25 12.8
5 5 187.3521.755.86.723.52.4513.05 12.3
5 6 20.657.616.65.6513.421.11.357 11.7
5 7 14.310.712.0511.16.6520.458.454.05 11.0
5 8 14.8511.7515.4515.4520.321.310.95.05 14.4
5 9 414.317.614.814.6520.44.053.9 11.7
5 10 1.4515.0510.319.7521.523.25.69.45 13.3
5 11 01611.821.519.624.754.255.5 12.9
5 12 12.3515.115.156.921.725.910.854.05 14.0
5 13 6.113.0518.60.8524.6512.3517.453.6 12.1
5 14 22.2512.215.950.811.411.5512.911.35 12.3
5 15 18.4520.123.2517.9522.215.22.913.45 16.7
5 16 15.2518.922.9525.8513.9522.53.1515.9 17.3
5 17 6.518.517.9522.17.726.23.625.25 16.0
5 18 3.1517.3514.814.8928.69.230.75 16.0
5 19 8.815.118.215.59.4527.3513.6530.25 17.3
5 20 17.5512.519.423.6515.6514.511.715.15 16.3
5 21 21.818.3518.726.15173.58.213.65 15.9
5 22 21.851821.529.4524.811.756.7513.25 18.4
5 23 18.7525.122.523.7517.4511.3515.6510.9 18.2
5 24 21.228.5525.457.915.7516.321.1511.5 18.5
5 25 22.326.0527.66.819.0521.0525.415.35 20.5
5 26 25.5529.752812.2522.123.0524.716.8 22.8
5 27 27.5526.529.4511.427.1527.628.615.85 24.3
5 28 17.524.330.8518.121.528.628.2517.1 23.3
5 29 23.326.6531.327.256.727.8524.7519.65 23.4
5 30 28.2533.3526.2531.9515.527.823.712.75 24.9
5 31 28.6534.4526.0530.219.528.0526.6523.85 27.2
6 1 28.9534.421.0530.2515.452726.4520.65 25.5
6 2 28.225.1517.827.617.8511.852418.6 21.4
6 3 29.117.5517.625.524.98.6522.317.95 20.4
6 4 29.4517.117.2519.727.7510.3527.0520.95 21.2
6 5 29.2524.414.2518.9521.6516.2526.220.65 21.5
6 6 29.125.715.117.9519.9521.326.6521 22.1
6 7 17.6525.6519.1518.9521.319.626.5510.8 20.0
6 8 18.333.3520.9524.922.3523.1513.6512.8 21.2
6 9 17.435.629.623.1525.626.5515.0518.15 23.9
6 10 26.73130.6524.830.2523.1520.1525.4 26.5
6 11 23.3529.7527.5525.1525.4529.3527.2528.7 27.1
6 12 3027.522.827.221.8532.431.631.05 28.1
6 13 31.719.824.6528.8525.531.6520.2534.1 27.1
6 14 29.718.424.052219.733.4522.731.4 25.2
6 15 25.82021.923.520.431.919.326.45 23.7
6 16 24.319.8520.524.426.2532.5522.325.8 24.5
6 17 27.5524.651830.5533.1527.8523.129.4 26.8
6 18 23.0526.8514.9522.435.1528.9523.732.7 26.0
6 19 27.4528.4528.2521.725.6527.426.5530.8 27.0
6 20 32.9524.6534.7521.523.6529.4529.926.85 28.0
6 21 32.227.537.622.219.831.429.829.5 28.8
6 22 31.430.9534.526.3525.431.124.7529 29.2
6 23 32.930.653126.2522.9533.0524.1531.25 29.0
6 24 38.0528.9528.232.425.625.326.329.35 29.3
6 25 31.726.5528.33230.7523.0526.7527.75 28.4
6 26 30.2523.620.930.0529.6522.6523.7522.1 25.4
6 27 34.326.6526.828.326.5516.4525.6521.85 25.8
6 28 3530.4530.0529.9524.619.8527.117.8 26.9
6 29 32.9529.4537.53024.7521.124.2525.3 28.2
6 30 23.2524.332.753029.2525.8522.6532.65 27.6
7 1 21.125.335.9529.131.1526.52732.65 28.6
7 2 21.5527.153429.334.820.72431.5 27.9
7 3 24.531.6533.430.131.3521.8520.531.5 28.1
7 4 28.8530.0537.232.6523.5522.519.132.15 28.3
7 5 32.731.639.432.5522.12531.1530.25 30.6
7 6 38.2531.338.934.123.328.6532.2524.6 31.4
7 7 38.133.0540.2532.8532.8530.732.3531.05 33.9
7 8 36.2528.054130.132.5531.233.7529.7 32.8
7 9 32.429.229.328.729.931.7532.424.75 29.8
7 10 25.730.4530.73227.628.9527.7528.75 29.0
7 11 30.432.131.7529.926.628.3526.5532 29.7
7 12 26.733.6528.221.728.92527.332.7 28.0
7 13 29.23330.528.631.227.430.2534.75 30.6
7 14 28.6525.525.733.7531.130.5535.833.95 30.6
7 15 32243535.4529.7527.3533.331.85 31.1
7 16 34.62435.953923.924.130.827.7 30.0
7 17 33.428.4537.4538.223.122.629.231.7 30.5
7 18 33.732.340.738.4521.631.1533.6530.85 32.8
7 19 32.835.134.4537.4525.33631.3534.4 33.4
7 20 33.433.6522.534.625.736.72836.1 31.3
7 21 33.338.616.933.4526.232.528.1537.15 30.8
7 22 33.8542.824.732.428.125.831.7534.65 31.8
7 23 35.839.930.729.9531.324.936.731.85 32.6
7 24 41.1538.7532.728.724.723.734.0531.65 31.9
7 25 36.63229.4520.9522.626.638.822.4 28.7
7 26 28.5533.8533.1526.352827.734.524.55 29.6
7 27 25.9531.132.1525.630.927.736.5529.25 29.9
7 28 32.4530.8532.6527.627.332.634.824.1 30.3
7 29 32.6539.129.325.1518.9529.631.320.15 28.3
7 30 26.53628.9522.4518.9531.8530.1522.85 27.2
7 31 25.2533.630.1523.524.5528.8531.425.4 27.8
8 1 26.334.329.9526.2525.330.630.628.9 29.0
8 2 25.932.9531.427.5522.32830.730.25 28.6
8 3 29.1527.832.222.4523.328.427.3528.4 27.4
8 4 33.8526.8534.0523.5522.8530.325.829.85 28.4
8 5 33.8526.535.3520.8527.1528.052625 27.8
8 6 31.629.3533.119.623.6524.6532.2521.8 27.0
8 7 26.133.930.124.9525.125.5530.0519.2 26.9
8 8 27.533.831.328.422.624.8527.4523.75 27.5
8 9 31.8531.6532.931.624.227.623.323.6 28.3
8 10 35.653027.927.625.4522.834.1523.1 28.3
8 11 36.9527.229.3527.122.8529.636.1523.85 29.1
8 12 28.625.926.129.1521.427.136.928.35 27.9
8 13 25.522.6527.2529.925.4524.6537.2526.55 27.4
8 14 23.9526.0530.518.319.652436.8522.6 25.2
8 15 24.4524.4526.2517.7518.127.3533.525.1 24.6
8 16 32.125.827.518.320.229.133.2531.75 27.3
8 17 31.7527.3529.119.0525.431.5532.4530.4 28.4
8 18 22.730.125.9520.523.3528.530.9533.75 27.0
8 19 29.227.520.0519.4526.531.23029.8 26.7
8 20 30.3526.6522.826.2526.0527.929.727.55 27.2
8 21 29.728.223.0529.052726.728.3529.45 27.7
8 22 3124.224.630.223.8524.1525.832.05 27.0
8 23 28.320.326.2520.620.322.822.8529.15 23.8
8 24 2021.827.2522.8522.229.8524.325.4 24.2
8 25 2325.225.6520.6521.9524.7527.122.8 23.9
8 26 25.3527.124.5524.0524.122.4534.422.55 25.6
8 27 21.9524.6529.132.0525.920.131.620.6 25.7
8 28 24.7524.7530.127.5524.752229.318.95 25.3
8 29 27.72125.529.218.4524.931.415.4 24.2
8 30 30.7520.2525.6528.9523.2525.630.419.8 25.6
8 31 30.7521.330.3530.132.630.0528.6524.95 28.6
9 1 32.521.1533.0530.631.5531.9525.915.3 27.8
9 2 31.821.627.3531.832.3532.422.9510.4 26.3
9 3 30.6525.831.1526.926.232.1523.620.15 27.1
9 4 22.428.731.6522.227.132.622.9521.1 26.1
9 5 17.052433.752331.628.8523.0527.3 26.1
9 6 21.717.826.918.0531.7525.6531.0514.4 23.4
9 7 26.9520.5528.9518.5523.9527.330.616.1 24.1
9 8 30.8522.327.4527.1519.0530.3534.6514.3 25.8
9 9 17.9523.719.220.821.733.3536.2513.4 23.3
9 10 1726.7516.832.223.7524.0534.814.75 23.8
9 11 16.523.151533.9528.824.6526.915.3 23.0
9 12 15.752216.852920.116.5522.320.15 20.3
9 13 22.4523.6518.121.2512.715.125.322.4 20.1
9 14 18.6526.619.311.610.1515.928.3523.85 19.3
9 15 19.651518.112.913.319.521.9524.8 18.2
9 16 24.255.614.316.5517.421.7519.826.2 18.2
9 17 21.457.614.659.8513.522.8523.725.55 17.4
9 18 15.611.222.258.3513.822.8527.621.1 17.8
9 19 19.5512.5512.713.5514.324.1522.9526.3 18.3
9 20 19.317.9511.91720.3523.0523.730.15 20.4
9 21 14.518.816.117.821.614.325.7527.65 19.6
9 22 25.525.9522.314.715.6516.224.0524.8 21.1
9 23 27.5219.759.2510.0519.725.425.9 18.6
9 24 32.721.659.159.9510.5517.316.228.5 18.3
9 25 30.1523.2510.5512.8512.216.4513.429.7 18.6
9 26 17.0523.3521.614.616.051810.5526.3 18.4
9 27 20.423.0522.214.1517.917.218.430.75 20.5
9 28 22.724.722.3151822.713.523.5 20.3
9 29 12.718.612.3513.0515.5523.814.2513.75 15.5
9 30 21.6516.3511.4513.4520.5517.6510.99.75 15.2
10 1 14.654.810.4517.3516.88.8511.710.4 11.9
10 2 8.8016.2522.615.251.818.1512.1 11.9
10 3 8.2025.721.313.32.2518.213.2 12.8
10 4 2.2821.5524.856.154.3514.316.05 12.2
10 5 5.812.920.127.1509.413.2519.8 13.6
10 6 59.314.7525.557.2512.113.8524.65 14.1
10 7 12.558.650.2515.2512.2517.1515.223.2 13.1
10 8 11.6511.5507.6515.051714.7526.85 13.1
10 9 15.415.54.47.57.7518.91228.8 13.8
10 10 13.3518.8510.25.78.27.55.7528.55 12.3
10 11 21.215.92.8510.24.27.73.3519.6 10.6
10 12 2013.952.8144.4511.256.8512.7 10.8
10 13 7.8515.9011.210.1514.8510.211.4 10.2
10 14 1.1513.958.811.4520.18.654.817.3 10.8
10 15 5.310.712.3511.5520.257.654.5520.25 11.6
10 16 6.3595.413.310.856.910.4510.05 9.0
10 17 9.8512.054.6517.412.45019.33.85 9.9
10 18 5.811.28.357.3510.2020.67.8 8.9
10 19 3.11517.055.40025.059.25 9.4
10 20 2.5511.57.253.11.254.623.9515.85 8.8
10 21 4.63.16.63.614.359.9518.913.05 9.3
10 22 01.256.953.63.212.54.3512.6 5.6
10 23 3.32.111.851.557.59.15.7515.4 7.1
10 24 13.25.5518.15010.451.259.4516.2 9.3
10 25 12.456.4514.2506.9512.150.99.05 7.8
10 26 17.455.814.9506.71.6502.35 6.1
10 27 20.954.0513.6504.0503.954.05 6.3
10 28 15.907.450.5513.0511.51.458.2 7.3
10 29 0.3500.11.857.711.455.27.35 4.3
10 30 0006.051.351.35211.3 3.9
10 31 2.10010.951.201.91.35 2.2
Month Day 2010/2011
2011/2012
2012/2013
2013/2014
2014/2015
2015/2016
2016/2017
2017/2018
Avg
3 1 004.35000015.6 2.5
3 2 004.35000015.6 2.5
3 3 007.55000015.6 2.9
3 4 007.55000015.6 2.9
3 5 027.55000015.6 3.1
3 6 027.55000015.6 3.1
3 7 027.55000022.35 4.0
3 8 0221.300013.329.55 8.3
3 9 0224.5500025.0538.55 11.3
3 10 03.424.5500044.438.55 13.9
3 11 3.253.424.550.83.72.156.638.55 16.6
3 12 3.253.427.451.93.72.156.638.55 17.1
3 13 3.253.445.11.93.72.158.9538.55 19.6
3 14 3.33.460.051.93.72.158.9538.55 21.5
3 15 3.33.470.951.96.952.161.6538.55 23.6
3 16 7.154.178.651.96.952.168.2538.55 26.0
3 17 9.956.288.21.96.955.272.138.55 28.6
3 18 13.118.595.21.96.955.275.8538.55 31.9
3 19 20.5525.6107.11.96.955.275.8538.55 35.2
3 20 28.625.6123.851.96.955.275.8538.55 38.3
3 21 37.0532.35137.61.96.955.275.8541.95 42.4
3 22 4438.15153.71.99.75.275.8541.95 46.3
3 23 4438.15172.751.99.75.28441.95 49.7
3 24 49.838.15182.11.99.75.293.841.95 52.8
3 25 57.2538.15187.91.99.75.2103.758.4 57.8
3 26 57.2538.15189.251.99.712.45103.758.4 58.9
3 27 57.2538.15189.251.99.712.45104.566.35 59.9
3 28 57.438.15195.251.910.212.45111.5578.4 63.2
3 29 62.238.15203.651.916.312.45112.285.6 66.6
3 30 62.238.15203.651.916.312.45112.285.6 66.6
3 31 71.738.15203.851.918.0514.05121.6585.6 69.4
4 1 80.3538.15208.454.718.0514.05143.886.95 74.3
4 2 91.4538.15210.954.720.416146.8589.8 77.3
4 3 100.638.152154.726.8528.85146.8594.75 82.0
4 4 114.553.352274.727.1533.05150.1113.8 90.5
4 5 132.561.4230.057.327.1534.7150.1127.65 96.4
4 6 158.5562.25230.757.327.1541.45150.1131.45 101.1
4 7 186.6566.8233.2511.927.1551.75153.95131.45 107.9
4 8 207.966.8238.1527.3531.851.75153.95131.45 113.6
4 9 209.9566.824650.733.251.75153.95134.95 118.4
4 10 212.473.8250.6577.237.5551.75153.95147.45 125.6
4 11 221.492.3250.6595.9553.4555.3161.95167.5 137.3
4 12 234.15104.7251.95103.265.956.75169.4184.85 146.4
4 13 234.15107.55255.35108.7584.0567.05169.4196.55 152.9
4 14 235.35114.75264.75114.1101.6574169.8205.2 160.0
4 15 244.15120.55286.05122.05102.0580.5171.4219.7 168.3
4 16 264126.05309.85135.5102.0590.65175.7243.3 180.9
4 17 270.25133.95326.9152.35102.05107.95184.8257.7 192.0
4 18 270.25145.05332.7169102.05126.25200.2268.7 201.8
4 19 274.55153.3342.3185.35106.75134.7217.05273.65 211.0
4 20 280.15171.75352.35189.7109.55150.4226.9292.7 221.7
4 21 282.55179.15369.2189.7112.2158.15235.6308.85 229.4
4 22 299.45179.15370.4189.7123.3164.8251.75314.85 236.7
4 23 310.3189.05370.4194.95125.45164.8264.45318.05 242.2
4 24 315.9211370.75204.6128.4164.8271.2323.95 248.8
4 25 320.35234.7376.3210.55133.2164.8283.25329.25 256.6
4 26 324.65260.65382.75215.5146.1168.25305.2340.85 268.0
4 27 328.45284.4387.95221.35152.25169.4315.9358.95 277.3
4 28 328.45304.9387.95228.2157.3178.2316.25382.7 285.5
4 29 333.05315.95394.75235.1157.3189.5316.25412.3 294.3
4 30 347.3324.7400.05242.3162.85202.35320.7433.25 304.2
5 1 371.45330.15420.95250.4181.55207.15322.85453.95 317.3
5 2 400.45344.8432.4258.55191.7217.65336471.1 331.6
5 3 426.45366.1448.75266.05203.85232.9348.45479 346.4
5 4 450373.75471.2274.8214.25250.7352.65486.25 359.2
5 5 468381.1492.95280.6220.95274.2355.1499.3 371.5
5 6 488.65388.7509.55286.25234.35295.3356.45506.3 383.2
5 7 502.95399.4521.6297.35241315.75364.9510.35 394.2
5 8 517.8411.15537.05312.8261.3337.05375.8515.4 408.5
5 9 521.8425.45554.65327.6275.95357.45379.85519.3 420.3
5 10 523.25440.5564.95347.35297.45380.65385.45528.75 433.5
5 11 523.25456.5576.75368.85317.05405.4389.7534.25 446.5
5 12 535.6471.6591.9375.75338.75431.3400.55538.3 460.5
5 13 541.7484.65610.5376.6363.4443.65418541.9 472.6
5 14 563.95496.85626.45377.4374.8455.2430.9553.25 484.9
5 15 582.4516.95649.7395.35397470.4433.8566.7 501.5
5 16 597.65535.85672.65421.2410.95492.9436.95582.6 518.8
5 17 604.15554.35690.6443.3418.65519.1440.55607.85 534.8
5 18 607.3571.7705.4458.1427.65547.7449.75638.6 550.8
5 19 616.1586.8723.6473.6437.1575.05463.4668.85 568.1
5 20 633.65599.3743497.25452.75589.55475.1684 584.3
5 21 655.45617.65761.7523.4469.75593.05483.3697.65 600.2
5 22 677.3635.65783.2552.85494.55604.8490.05710.9 618.7
5 23 696.05660.75805.7576.6512616.15505.7721.8 636.8
5 24 717.25689.3831.15584.5527.75632.45526.85733.3 655.3
5 25 739.55715.35858.75591.3546.8653.5552.25748.65 675.8
5 26 765.1745.1886.75603.55568.9676.55576.95765.45 698.5
5 27 792.65771.6916.2614.95596.05704.15605.55781.3 722.8
5 28 810.15795.9947.05633.05617.55732.75633.8798.4 746.1
5 29 833.45822.55978.35660.3624.25760.6658.55818.05 769.5
5 30 861.7855.91004.6692.25639.75788.4682.25830.8 794.5
5 31 890.35890.351030.65722.45659.25816.45708.9854.65 821.6
6 1 919.3924.751051.7752.7674.7843.45735.35875.3 847.2
6 2 947.5949.91069.5780.3692.55855.3759.35893.9 868.5
6 3 976.6967.451087.1805.8717.45863.95781.65911.85 889.0
6 4 1006.05984.551104.35825.5745.2874.3808.7932.8 910.2
6 5 1035.31008.951118.6844.45766.85890.55834.9953.45 931.6
6 6 1064.41034.651133.7862.4786.8911.85861.55974.45 953.7
6 7 1082.051060.31152.85881.35808.1931.45888.1985.25 973.7
6 8 1100.351093.651173.8906.25830.45954.6901.75998.05 994.9
6 9 1117.751129.251203.4929.4856.05981.15916.81016.2 1018.8
6 10 1144.451160.251234.05954.2886.31004.3936.951041.6 1045.3
6 11 1167.811901261.6979.35911.751033.65964.21070.3 1072.3
6 12 1197.81217.51284.41006.55933.61066.05995.81101.35 1100.4
6 13 1229.51237.31309.051035.4959.11097.71016.051135.45 1127.4
6 14 1259.21255.71333.11057.4978.81131.151038.751166.85 1152.6
6 15 12851275.713551080.9999.21163.051058.051193.3 1176.3
6 16 1309.31295.551375.51105.31025.451195.61080.351219.1 1200.8
6 17 1336.851320.21393.51135.851058.61223.451103.451248.5 1227.6
6 18 1359.91347.051408.451158.251093.751252.41127.151281.2 1253.5
6 19 1387.351375.51436.71179.951119.41279.81153.71312 1280.6
6 20 1420.31400.151471.451201.451143.051309.251183.61338.85 1308.5
6 21 1452.51427.651509.051223.651162.851340.651213.41368.35 1337.3
6 22 1483.91458.61543.5512501188.251371.751238.151397.35 1366.4
6 23 1516.81489.251574.551276.251211.21404.81262.31428.6 1395.5
6 24 1554.851518.21602.751308.651236.81430.11288.61457.95 1424.7
6 25 1586.551544.751631.051340.651267.551453.151315.351485.7 1453.1
6 26 1616.81568.351651.951370.71297.21475.81339.11507.8 1478.5
6 27 1651.115951678.7513991323.751492.251364.751529.65 1504.3
6 28 1686.11625.451708.81428.951348.351512.11391.851547.45 1531.1
6 29 1719.051654.91746.31458.951373.11533.21416.11572.75 1559.3
6 30 1742.31679.21779.051488.951402.351559.051438.751605.4 1586.9
7 1 1763.41704.518151518.051433.51585.551465.751638.05 1615.5
7 2 1784.951731.6518491547.351468.31606.251489.751669.55 1643.4
7 3 1809.451763.31882.41577.451499.651628.11510.251701.05 1671.5
7 4 1838.31793.351919.61610.11523.21650.61529.351733.2 1699.7
7 5 18711824.9519591642.651545.31675.61560.51763.45 1730.3
7 6 1909.251856.251997.91676.751568.61704.251592.751788.05 1761.7
7 7 1947.351889.32038.151709.61601.451734.951625.11819.1 1795.6
7 8 1983.61917.352079.151739.716341766.151658.851848.8 1828.5
7 9 20161946.552108.451768.41663.91797.91691.251873.55 1858.3
7 10 2041.719772139.151800.41691.51826.8517191902.3 1887.2
7 11 2072.12009.12170.91830.31718.11855.21745.551934.3 1916.9
7 12 2098.82042.752199.1185217471880.21772.851967 1945.0
7 13 21282075.752229.61880.61778.21907.61803.12001.75 1975.6
7 14 2156.652101.252255.31914.351809.31938.151838.92035.7 2006.2
7 15 2188.652125.252290.31949.81839.051965.51872.22067.55 2037.3
7 16 2223.252149.252326.251988.81862.951989.619032095.25 2067.3
7 17 2256.652177.72363.720271886.052012.21932.22126.95 2097.8
7 18 2290.3522102404.42065.451907.652043.351965.852157.8 2130.6
7 19 2323.152245.12438.852102.91932.952079.351997.22192.2 2164.0
7 20 2356.552278.752461.352137.51958.652116.052025.22228.3 2195.3
7 21 2389.852317.352478.252170.951984.852148.552053.352265.45 2226.1
7 22 2423.72360.152502.952203.352012.952174.352085.12300.1 2257.8
7 23 2459.52400.052533.652233.32044.252199.252121.82331.95 2290.5
7 24 2500.652438.82566.3522622068.952222.952155.852363.6 2322.4
7 25 2537.252470.82595.82282.952091.552249.552194.652386 2351.1
7 26 2565.82504.652628.952309.32119.552277.252229.152410.55 2380.7
7 27 2591.752535.752661.12334.92150.452304.952265.72439.8 2410.6
7 28 2624.22566.62693.752362.52177.752337.552300.52463.9 2440.8
7 29 2656.852605.72723.052387.652196.72367.152331.82484.05 2469.1
7 30 2683.352641.727522410.12215.6523992361.952506.9 2496.3
7 31 2708.62675.32782.152433.62240.22427.852393.352532.3 2524.2
8 1 2734.92709.62812.12459.852265.52458.452423.952561.2 2553.2
8 2 2760.82742.552843.52487.42287.82486.452454.652591.45 2581.8
8 3 2789.952770.352875.72509.852311.12514.8524822619.85 2609.2
8 4 2823.82797.22909.752533.42333.952545.152507.82649.7 2637.6
8 5 2857.652823.72945.12554.252361.12573.22533.82674.7 2665.4
8 6 2889.252853.052978.22573.852384.752597.852566.052696.5 2692.4
8 7 2915.352886.953008.32598.82409.852623.42596.12715.7 2719.3
8 8 2942.852920.753039.62627.22432.452648.252623.552739.45 2746.8
8 9 2974.72952.43072.52658.82456.652675.852646.852763.05 2775.1
8 10 3010.352982.43100.42686.42482.12698.6526812786.15 2803.4
8 11 3047.33009.63129.752713.52504.952728.252717.152810 2832.6
8 12 3075.93035.53155.852742.652526.352755.352754.052838.35 2860.5
8 13 3101.43058.153183.12772.552551.827802791.32864.9 2887.9
8 14 3125.353084.23213.62790.852571.4528042828.152887.5 2913.1
8 15 3149.83108.653239.852808.62589.552831.352861.652912.6 2937.8
8 16 3181.93134.453267.352826.92609.752860.452894.92944.35 2965.0
8 17 3213.653161.83296.452845.952635.1528922927.352974.75 2993.4
8 18 3236.353191.93322.42866.452658.52920.52958.33008.5 3020.4
8 19 3265.553219.43342.452885.926852951.72988.33038.3 3047.1
8 20 3295.93246.053365.252912.152711.052979.630183065.85 3074.2
8 21 3325.63274.253388.32941.22738.053006.33046.353095.3 3101.9
8 22 3356.63298.453412.92971.42761.93030.453072.153127.35 3128.9
8 23 3384.93318.753439.1529922782.23053.2530953156.5 3152.7
8 24 3404.93340.553466.43014.852804.43083.13119.33181.9 3176.9
8 25 3427.93365.753492.053035.52826.353107.853146.43204.7 3200.8
8 26 3453.253392.853516.63059.552850.453130.33180.83227.25 3226.4
8 27 3475.23417.53545.73091.62876.353150.43212.43247.85 3252.1
8 28 3499.953442.253575.83119.152901.13172.43241.73266.8 3277.4
8 29 3527.653463.253601.33148.352919.553197.33273.13282.2 3301.6
8 30 3558.43483.53626.953177.32942.83222.93303.53302 3327.2
8 31 3589.153504.83657.33207.42975.43252.953332.153326.95 3355.8
9 1 3621.653525.953690.3532383006.953284.93358.053342.25 3383.5
9 2 3653.453547.553717.73269.83039.33317.333813352.65 3409.8
9 3 3684.13573.353748.853296.73065.53349.453404.63372.8 3436.9
9 4 3706.53602.053780.53318.93092.63382.053427.553393.9 3463.0
9 5 3723.553626.053814.253341.93124.23410.93450.63421.2 3489.1
9 6 3745.253643.853841.153359.953155.953436.553481.653435.6 3512.5
9 7 3772.23664.43870.13378.53179.93463.853512.253451.7 3536.6
9 8 3803.053686.73897.553405.653198.953494.23546.93466 3562.4
9 9 38213710.43916.753426.453220.653527.553583.153479.4 3585.7
9 10 38383737.153933.553458.653244.43551.63617.953494.15 3609.4
9 11 3854.53760.33948.553492.63273.23576.253644.853509.45 3632.5
9 12 3870.253782.33965.43521.63293.33592.83667.153529.6 3652.8
9 13 3892.73805.953983.53542.8533063607.93692.453552 3672.9
9 14 3911.353832.554002.83554.453316.153623.83720.83575.85 3692.2
9 15 39313847.554020.93567.353329.453643.33742.753600.65 3710.4
9 16 3955.253853.154035.23583.93346.853665.053762.553626.85 3728.6
9 17 3976.73860.754049.853593.753360.353687.93786.253652.4 3746.0
9 18 3992.33871.954072.13602.13374.153710.753813.853673.5 3763.8
9 19 4011.853884.54084.83615.653388.453734.93836.83699.8 3782.1
9 20 4031.153902.454096.73632.653408.83757.953860.53729.95 3802.5
9 21 4045.653921.254112.83650.453430.43772.253886.253757.6 3822.1
9 22 4071.153947.24135.13665.153446.053788.453910.33782.4 3843.2
9 23 4098.653968.24144.853674.43456.13808.153935.73808.3 3861.8
9 24 4131.353989.8541543684.353466.653825.453951.93836.8 3880.0
9 25 4161.54013.14164.553697.23478.853841.93965.33866.5 3898.6
9 26 4178.554036.454186.153711.83494.93859.93975.853892.8 3917.1
9 27 4198.954059.54208.353725.953512.83877.13994.253923.55 3937.6
9 28 4221.654084.24230.653740.953530.83899.84007.753947.05 3957.9
9 29 4234.354102.8424337543546.353923.640223960.8 3973.4
9 30 42564119.154254.453767.453566.93941.254032.93970.55 3988.6
10 1 4270.654123.954264.93784.83583.73950.14044.63980.95 4000.5
10 2 4279.454123.954281.153807.43598.953951.94062.753993.05 4012.3
10 3 4287.654123.954306.853828.73612.253954.154080.954006.25 4025.1
10 4 4289.854131.954328.43853.553618.43958.54095.254022.3 4037.3
10 5 4295.654144.854348.53880.73618.43967.94108.54042.1 4050.8
10 6 4300.654154.154363.253906.253625.6539804122.354066.75 4064.9
10 7 4313.24162.84363.53921.53637.93997.154137.554089.95 4077.9
10 8 4324.854174.354363.53929.153652.954014.154152.34116.8 4091.0
10 9 4340.254189.854367.93936.653660.74033.054164.34145.6 4104.8
10 10 4353.64208.74378.13942.353668.94040.554170.054174.15 4117.1
10 11 4374.84224.64380.953952.553673.14048.254173.44193.75 4127.7
10 12 4394.84238.554383.753966.553677.554059.54180.254206.45 4138.4
10 13 4402.654254.454383.753977.753687.74074.354190.454217.85 4148.6
10 14 4403.84268.44392.553989.23707.840834195.254235.15 4159.4
10 15 4409.14279.14404.94000.753728.054090.654199.84255.4 4171.0
10 16 4415.454288.14410.34014.053738.94097.554210.254265.45 4180.0
10 17 4425.34300.154414.954031.453751.354097.554229.554269.3 4190.0
10 18 4431.14311.354423.34038.83761.554097.554250.154277.1 4198.9
10 19 4434.24326.354440.354044.23761.554097.554275.24286.35 4208.2
10 20 4436.754337.854447.64047.33762.84102.154299.154302.2 4217.0
10 21 4441.354340.954454.24050.93777.154112.14318.054315.25 4226.2
10 22 4441.354342.24461.154054.53780.354124.64322.44327.85 4231.8
10 23 4444.654344.344734056.053787.854133.74328.154343.25 4238.9
10 24 4457.854349.854491.154056.053798.34134.954337.64359.45 4248.2
10 25 4470.34356.34505.44056.053805.254147.14338.54368.5 4255.9
10 26 4487.754362.14520.354056.053811.954148.754338.54370.85 4262.0
10 27 4508.74366.1545344056.0538164148.754342.454374.9 4268.4
10 28 4524.64366.154541.454056.63829.054160.254343.94383.1 4275.6
10 29 4524.954366.154541.554058.453836.754171.74349.14390.45 4279.9
10 30 4524.954366.154541.554064.53838.14173.054370.14391.75 4283.8
10 31 4527.054366.154541.554075.453839.34173.0543724393.1 4286.0



Development Time

4393 GDD as of Nov 19, 2017
Crops Required Growing Degree Days (Fahrenheit)
Corn (maize) 800 to 1400 to crop maturity
Cotton 2200 to 2600 planting to harvest ready
Dry Beans 1100-1300 to maturity depending on cultivar and soil conditions
Sugar Beet 130 to emergence and 1400-1500 to maturity
Barley 125-162 to emergence and 1290-1540 to maturity
Oats 1500-1750 to maturity
Wheat(Hard Red) 143-178 to emergence and 1550-1680 to maturity
Tomatoes above 1300 to ripen
Cantaloupe 1550 to maturity
Watermelon 1880 to ripen
Trees Required Growing Degree Days (Fahrenheit)
Red Maple first bloom 45
Eastern Redbud first bloom 197
Snowdrift Crabapple first bloom 214
Common Lilac first bloom 238
Vanhoutte Spirea first bloom 309
Black Cherry first bloom 376
Black Locust first bloom 503
Mountain-laurel first bloom 565
Littleleaf Linden first bloom 878
Insects Required Growing Degree Days (Fahrenheit)
Eastern Tent Caterpillar egg hatch 92
Gypsy Moth egg hatch 203
Birch Leafminer adult emergence 231
Pine Needle Scale egg hatch 301
Lilac Borer adult emergence 336
Euonymus Scale egg hatch 463
Bronze Birch Borer adult emergence 519
Juniper Scale egg hatch 579
Japanese Beetle adult emergence 966
American plum borer 245-440 adult flight
Balsam gall midge 150-300 adults laying eggs
Balsam twig aphid 60-100 egg hatch
Elm leaf beetle 400-600 1st generation
Elm leaf beetle 1300 2nd generation
Data source: Various internet pages . . . Times with base temperature = 50°F


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