Growing Degree Days & Evapotranspiration Data

ET Resources

As part of the Nebraska Agricultural Water Management Network, data is provided by growers, consultants, NRD staff, Extension educators, and weather stations. Using the Nebraska map simply click on a site near your location to go to a page that includes the weekly ETgage change along with weekly rainfall amounts. The ETgage change along with your crop's stage of growth can be used to estimate crop water use. NAWMN.

See table below for Evapotranspiration & GDD for more than 20 Nebraska sites.

More ET Resources

GDD Resources

U2U Corn GDD Decision Support Tool. Developed by specialists at several Midwest universities, including UNL, as part of the Useful to Usable climate data project, this tool puts current conditions into a 30-year historical perspective and offers trend projections through the end of the calendar year.
Nebraska GDD data (below, in table format) is provided by the High Plains Regional Climate Center. It offers GDD for multiple crops and crop emergence dates for sites across Nebraska.

Growing Degree Days and Crop Water Use Summary (Evapotranspiration) Updated 6-24-2018 - Courtesy of the High Plains Regional Climate Center

ALDA 3W

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1788.	0.19	0.20	0.22	Full Cov	4500.
Alfalfa	4/01	1695.	0.19	0.20	0.22	Full Cov	4500.
Alfalfa	4/15	1612.	0.19	0.20	0.22	Full Cov	4500.
Corn	4/22	1138.	0.18	0.19	0.23	16leaves	2700.
Corn	4/29	1084.	0.16	0.18	0.21	16leaves	2700.
Corn	5/06	990.	0.15	0.16	0.19	16leaves	2700.
Corn	5/13	891.	0.13	0.15	0.17	14leaves	2700.
Corn	5/20	801.	0.11	0.13	0.15	12leaves	2700.
Corn	5/27	664.	0.09	0.10	0.12	10leaves	2700.
Grass	4/01	1695.	0.13	0.14	0.16	Nr Full Cov	4500.
Grass	4/15	1612.	0.13	0.14	0.16	Nr Full Cov	4500.
Potato	4/15	1510.	0.19	0.21	0.23	Tuberization	3655.
Potato	4/25	1463.	0.19	0.21	0.23	Early Tuber	3655.
Potato	5/05	1319.	0.18	0.19	0.22	Early Tuber	3655.
Potato	5/15	1142.	0.16	0.17	0.20	Early Tuber	3655.
Potato	5/25	926.	0.12	0.14	0.16	Blossom	3655.
Sorghum	5/15	874.	0.12	0.14	0.17	8lv-GrPtdif	2200.
Sorghum	5/22	785.	0.10	0.12	0.14	8lv-GrPtdif	2200.
Sorghum	5/25	712.	0.09	0.10	0.12	5 leaves	2200.
Sorghum	6/05	473.	0.05	0.06	0.07	3 leaves	2200.
Sorghum	6/12	300.	0.03	0.04	0.05	3 leaves	2200.
Sorghum	6/19	114.	0.02	0.02	0.03	Emergence	2200.
Soybean	5/08	956.	0.16	0.17	0.20	BegBloom	2450.
Soybean	5/15	874.	0.14	0.16	0.18	BegBloom	2450.
Soybean	5/22	785.	0.12	0.14	0.16	BegBloom	2450.
Soybean	5/25	712.	0.10	0.12	0.14	ThirdNode	2450.
Soybean	6/05	473.	0.06	0.07	0.08	SecondNode	2450.
Soybean	6/12	300.	0.03	0.04	0.05	FirstNode	2450.
Wheat	2/22	1909.	0.08	0.07	0.05	Ripening	2000.
Wheat	3/01	1887.	0.09	0.08	0.06	Ripening	2000.
Wheat	3/08	1828.	0.11	0.10	0.09	Ripening	2000.
Wheat	3/15	1788.	0.13	0.12	0.10	Stiff Dough	2000.
Wheat	3/22	1759.	0.14	0.13	0.12	Stiff Dough	2000.
Wheat	3/29	1715.	0.15	0.14	0.13	Stiff Dough	2000.

ALLIANCE 6NW

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	823.	0.12	0.16	0.17	12leaves	2450.
Corn	4/29	774.	0.11	0.14	0.16	12leaves	2450.
Corn	5/06	720.	0.10	0.13	0.14	10leaves	2450.
Corn	5/13	645.	0.08	0.11	0.12	10leaves	2450.
Corn	5/20	576.	0.07	0.10	0.11	8leaves	2450.
Corn	5/27	479.	0.06	0.08	0.09	6leaves	2450.
Potato	6/01	538.	0.06	0.09	0.10	Vegetative	3655.
Potato	6/15	188.	0.03	0.03	0.04	Emergence	3655.
Sugar bee	4/28	784.	0.08	0.10	0.11	Cover50-70%	2700.
Sugar bee	5/08	689.	0.06	0.09	0.10	Cover50-70%	2700.
Sugar bee	5/18	586.	0.05	0.07	0.08	Cover30-50%	2700.
Sunflower	5/28	489.	0.13	0.18	0.19	Early veg.	2200.
Sunflower	6/08	301.	0.08	0.12	0.13	Early veg.	2200.
Wheat	2/22	1550.	0.15	0.19	0.16	Stiff Dough	1840.
Wheat	3/01	1539.	0.16	0.19	0.17	Stiff Dough	1840.
Wheat	3/08	1505.	0.17	0.21	0.18	Stiff Dough	1840.
Wheat	3/15	1450.	0.18	0.23	0.21	Stiff Dough	1840.
Wheat	3/22	1410.	0.19	0.24	0.23	Stiff Dough	1840.
Wheat	3/29	1354.	0.19	0.25	0.24	Grain Fill	1840.

CHAMPION 5SE

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	975.	0.17	0.15	0.17	16leaves	2500.
Corn	4/29	927.	0.16	0.15	0.16	14leaves	2500.
Corn	5/06	853.	0.14	0.13	0.15	14leaves	2500.
Corn	5/13	762.	0.12	0.11	0.13	12leaves	2500.
Corn	5/20	681.	0.10	0.10	0.11	10leaves	2500.
Corn	5/27	564.	0.08	0.08	0.09	8leaves	2500.
Sorghum	5/15	745.	0.11	0.10	0.12	5 leaves	2200.
Sorghum	5/22	660.	0.09	0.09	0.10	5 leaves	2200.
Sorghum	5/25	604.	0.08	0.08	0.09	5 leaves	2200.
Sorghum	6/05	403.	0.05	0.05	0.06	3 leaves	2200.
Sorghum	6/12	251.	0.03	0.03	0.04	3 leaves	2200.
Sorghum	6/19	97.	0.02	0.02	0.03	Emergence	2200.
Soybean	5/08	820.	0.15	0.14	0.16	BegBloom	2360.
Soybean	5/15	745.	0.13	0.12	0.14	ThirdNode	2360.
Soybean	5/22	660.	0.10	0.10	0.12	ThirdNode	2360.
Soybean	5/25	604.	0.09	0.08	0.10	ThirdNode	2360.
Soybean	6/05	403.	0.06	0.06	0.07	SecondNode	2360.
Soybean	6/12	251.	0.03	0.03	0.04	FirstNode	2360.
Sunflower	5/15	793.	0.23	0.21	0.22	Bud format.	2200.
Sunflower	5/25	652.	0.19	0.18	0.20	Early veg.	2200.
Sunflower	6/05	440.	0.13	0.13	0.14	Early veg.	2200.
Sunflower	6/15	198.	0.06	0.07	0.08	Early veg.	2200.
Wheat	2/22	1827.	0.06	0.04	0.01	Ripening	1840.
Wheat	3/01	1808.	0.07	0.05	0.02	Ripening	1840.
Wheat	3/08	1755.	0.10	0.07	0.04	Ripening	1840.
Wheat	3/15	1691.	0.13	0.10	0.07	Ripening	1840.
Wheat	3/22	1641.	0.15	0.12	0.09	Stiff Dough	1840.
Wheat	3/29	1580.	0.17	0.14	0.12	Stiff Dough	1840.

CONCORD 2E

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1684.	0.11	0.17	0.22	Full Cov	4500.
Alfalfa	4/01	1628.	0.11	0.17	0.22	Full Cov	4500.
Alfalfa	4/15	1581.	0.11	0.17	0.22	Full Cov	4500.
Corn	4/22	1082.	0.10	0.15	0.21	16leaves	2600.
Corn	4/29	1029.	0.09	0.14	0.20	16leaves	2600.
Corn	5/06	947.	0.08	0.13	0.18	14leaves	2600.
Corn	5/13	867.	0.07	0.12	0.16	14leaves	2600.
Corn	5/20	773.	0.06	0.10	0.14	12leaves	2600.
Corn	5/27	638.	0.05	0.08	0.11	10leaves	2600.
Grass	3/15	1684.	0.08	0.12	0.15	Nr Full Cov	4500.
Grass	4/01	1628.	0.08	0.12	0.15	Nr Full Cov	4500.
Grass	4/15	1581.	0.08	0.12	0.15	Nr Full Cov	4500.
Soybean	5/08	916.	0.09	0.14	0.19	BegBloom	2360.
Soybean	5/15	851.	0.08	0.13	0.17	BegBloom	2360.
Soybean	5/22	758.	0.07	0.11	0.15	ThirdNode	2360.
Soybean	5/25	688.	0.06	0.09	0.13	ThirdNode	2360.
Soybean	6/05	439.	0.03	0.05	0.07	SecondNode	2360.
Soybean	6/12	269.	0.02	0.03	0.05	FirstNode	2360.
Wheat	2/22	1719.	0.06	0.08	0.07	Ripening	1840.
Wheat	3/01	1716.	0.06	0.08	0.07	Ripening	1840.
Wheat	3/08	1697.	0.06	0.08	0.08	Ripening	1840.
Wheat	3/15	1684.	0.06	0.09	0.08	Ripening	1840.
Wheat	3/22	1671.	0.07	0.09	0.09	Ripening	1840.
Wheat	3/29	1641.	0.07	0.10	0.10	Stiff Dough	1840.

DICKENS 9N

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1647.	0.20	0.22	0.21	Full Cov	4500.
Alfalfa	4/01	1537.	0.20	0.22	0.21	Full Cov	4500.
Alfalfa	4/15	1444.	0.20	0.22	0.21	Full Cov	4500.
Corn	4/22	961.	0.15	0.17	0.18	16leaves	2500.
Corn	4/29	914.	0.14	0.16	0.17	14leaves	2500.
Corn	5/06	840.	0.13	0.15	0.15	14leaves	2500.
Corn	5/13	754.	0.11	0.12	0.13	12leaves	2500.
Corn	5/20	673.	0.09	0.11	0.11	10leaves	2500.
Corn	5/27	551.	0.07	0.09	0.09	8leaves	2500.
Grass	3/15	1647.	0.14	0.15	0.15	Nr Full Cov	4500.
Grass	4/01	1537.	0.14	0.15	0.15	Nr Full Cov	4500.
Grass	4/15	1444.	0.14	0.15	0.15	Nr Full Cov	4500.
Sorghum	5/15	739.	0.10	0.12	0.12	5 leaves	2200.
Sorghum	5/22	653.	0.09	0.10	0.11	5 leaves	2200.
Sorghum	5/25	596.	0.07	0.09	0.09	5 leaves	2200.
Sorghum	6/05	395.	0.05	0.05	0.06	3 leaves	2200.
Sorghum	6/12	247.	0.03	0.04	0.04	3 leaves	2200.
Sorghum	6/19	96.	0.02	0.03	0.03	Emergence	2200.
Soybean	5/08	808.	0.14	0.16	0.16	BegBloom	2360.
Soybean	5/15	739.	0.12	0.13	0.15	ThirdNode	2360.
Soybean	5/22	653.	0.09	0.11	0.12	ThirdNode	2360.
Soybean	5/25	596.	0.08	0.09	0.10	ThirdNode	2360.
Soybean	6/05	395.	0.05	0.06	0.07	SecondNode	2360.
Soybean	6/12	247.	0.03	0.03	0.04	FirstNode	2360.
Wheat	2/22	1755.	0.09	0.08	0.05	Ripening	1840.
Wheat	3/01	1745.	0.09	0.08	0.05	Ripening	1840.
Wheat	3/08	1701.	0.11	0.11	0.07	Ripening	1840.
Wheat	3/15	1647.	0.13	0.13	0.10	Stiff Dough	1840.
Wheat	3/22	1611.	0.15	0.15	0.12	Stiff Dough	1840.
Wheat	3/29	1557.	0.17	0.17	0.14	Stiff Dough	1840.

DUNCAN 2W

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1790.	0.16	0.18	0.22	Full Cov	4500.
Alfalfa	4/01	1711.	0.16	0.18	0.22	Full Cov	4500.
Alfalfa	4/15	1637.	0.16	0.18	0.22	Full Cov	4500.
Corn	4/22	1157.	0.15	0.18	0.23	16leaves	2600.
Corn	4/29	1097.	0.14	0.17	0.22	16leaves	2600.
Corn	5/06	1001.	0.13	0.15	0.19	16leaves	2600.
Corn	5/13	900.	0.11	0.13	0.17	14leaves	2600.
Corn	5/20	804.	0.09	0.11	0.15	12leaves	2600.
Corn	5/27	665.	0.07	0.09	0.12	10leaves	2600.
Grass	3/15	1790.	0.11	0.13	0.15	Nr Full Cov	4500.
Grass	4/01	1711.	0.11	0.13	0.15	Nr Full Cov	4500.
Grass	4/15	1637.	0.11	0.13	0.15	Nr Full Cov	4500.
Soybean	5/08	967.	0.13	0.16	0.20	BegBloom	2360.
Soybean	5/15	883.	0.12	0.14	0.18	BegBloom	2360.
Soybean	5/22	790.	0.10	0.12	0.16	BegBloom	2360.
Soybean	5/25	714.	0.08	0.10	0.14	ThirdNode	2360.
Soybean	6/05	467.	0.05	0.06	0.08	SecondNode	2360.
Soybean	6/12	294.	0.03	0.03	0.05	FirstNode	2360.
Wheat	2/22	1891.	0.03	0.01	0.01	Mature	1840.
Wheat	3/01	1874.	0.03	0.01	0.01	Mature	1840.
Wheat	3/08	1824.	0.05	0.04	0.02	Ripening	1840.
Wheat	3/15	1790.	0.06	0.05	0.03	Ripening	1840.
Wheat	3/22	1770.	0.07	0.06	0.04	Ripening	1840.
Wheat	3/29	1732.	0.08	0.07	0.06	Ripening	1840.

ELGIN 6W

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1669.	0.13	0.20	0.21	Full Cov	4500.
Alfalfa	4/01	1603.	0.13	0.20	0.21	Full Cov	4500.
Alfalfa	4/15	1539.	0.13	0.20	0.21	Full Cov	4500.
Corn	4/22	1060.	0.11	0.18	0.20	16leaves	2600.
Corn	4/29	1010.	0.11	0.17	0.19	16leaves	2600.
Corn	5/06	929.	0.10	0.15	0.17	14leaves	2600.
Corn	5/13	844.	0.09	0.14	0.16	14leaves	2600.
Corn	5/20	759.	0.07	0.12	0.14	12leaves	2600.
Corn	5/27	621.	0.06	0.09	0.11	10leaves	2600.
Grass	3/15	1669.	0.09	0.14	0.15	Nr Full Cov	4500.
Grass	4/01	1603.	0.09	0.14	0.15	Nr Full Cov	4500.
Grass	4/15	1539.	0.09	0.14	0.15	Nr Full Cov	4500.
Soybean	5/08	896.	0.10	0.16	0.18	BegBloom	2360.
Soybean	5/15	832.	0.09	0.15	0.17	BegBloom	2360.
Soybean	5/22	745.	0.08	0.13	0.15	ThirdNode	2360.
Soybean	5/25	672.	0.06	0.10	0.13	ThirdNode	2360.
Soybean	6/05	431.	0.04	0.06	0.07	SecondNode	2360.
Soybean	6/12	270.	0.02	0.03	0.05	FirstNode	2360.
Wheat	2/22	1739.	0.06	0.08	0.06	Ripening	1840.
Wheat	3/01	1734.	0.06	0.08	0.06	Ripening	1840.
Wheat	3/08	1696.	0.07	0.10	0.08	Ripening	1840.
Wheat	3/15	1669.	0.08	0.11	0.09	Ripening	1840.
Wheat	3/22	1653.	0.08	0.12	0.10	Stiff Dough	1840.
Wheat	3/29	1620.	0.09	0.13	0.11	Stiff Dough	1840.

EMMET 3E

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1642.	0.13	0.21	0.21	Full Cov	4500.
Alfalfa	4/01	1577.	0.13	0.21	0.21	Full Cov	4500.
Alfalfa	4/15	1515.	0.13	0.21	0.21	Full Cov	4500.
Corn	4/22	1017.	0.11	0.18	0.18	16leaves	2600.
Corn	4/29	968.	0.10	0.17	0.17	16leaves	2600.
Corn	5/06	887.	0.09	0.15	0.16	14leaves	2600.
Corn	5/13	813.	0.08	0.14	0.14	12leaves	2600.
Corn	5/20	726.	0.07	0.11	0.12	12leaves	2600.
Corn	5/27	593.	0.05	0.09	0.10	8leaves	2600.
Grass	4/01	1577.	0.09	0.15	0.14	Nr Full Cov	4500.
Grass	4/15	1515.	0.09	0.15	0.14	Nr Full Cov	4500.
Potato	4/15	1334.	0.12	0.20	0.20	Early Tuber	3655.
Potato	4/25	1295.	0.12	0.20	0.20	Early Tuber	3655.
Potato	5/05	1173.	0.11	0.19	0.19	Early Tuber	3655.
Potato	5/15	1026.	0.10	0.16	0.17	Blossom	3655.
Potato	5/25	821.	0.08	0.13	0.13	Blossom	3655.
Soybean	5/08	857.	0.10	0.16	0.17	BegBloom	2360.
Soybean	5/15	799.	0.09	0.15	0.15	BegBloom	2360.
Soybean	5/22	710.	0.07	0.12	0.13	ThirdNode	2360.
Soybean	5/25	640.	0.06	0.10	0.11	ThirdNode	2360.
Soybean	6/05	412.	0.04	0.06	0.07	SecondNode	2360.
Soybean	6/12	251.	0.02	0.03	0.04	FirstNode	2360.
Wheat	2/22	1700.	0.07	0.11	0.07	Ripening	1840.
Wheat	3/01	1697.	0.07	0.11	0.07	Ripening	1840.
Wheat	3/08	1670.	0.08	0.12	0.09	Ripening	1840.
Wheat	3/15	1642.	0.09	0.13	0.10	Stiff Dough	1840.
Wheat	3/22	1626.	0.09	0.14	0.11	Stiff Dough	1840.
Wheat	3/29	1593.	0.10	0.15	0.12	Stiff Dough	1840.

GUIDE ROCK 3

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1901.	0.25	0.24	0.28	Full Cov	4500.
Alfalfa	4/01	1785.	0.25	0.24	0.28	Full Cov	4500.
Alfalfa	4/15	1683.	0.25	0.24	0.28	Full Cov	4500.
Corn	4/22	1210.	0.25	0.26	0.30	16leaves	2700.
Corn	4/29	1152.	0.24	0.24	0.29	16leaves	2700.
Corn	5/06	1047.	0.21	0.21	0.25	16leaves	2700.
Corn	5/13	938.	0.18	0.19	0.22	14leaves	2700.
Corn	5/20	825.	0.15	0.16	0.19	12leaves	2700.
Corn	5/27	688.	0.12	0.12	0.15	10leaves	2700.
Grass	3/15	1901.	0.18	0.17	0.19	Nr Full Cov	4500.
Grass	4/01	1785.	0.18	0.17	0.19	Nr Full Cov	4500.
Grass	4/15	1683.	0.18	0.17	0.19	Nr Full Cov	4500.
Sorghum	5/15	907.	0.17	0.18	0.22	8lv-GrPtdif	2369.
Sorghum	5/22	808.	0.14	0.15	0.18	8lv-GrPtdif	2369.
Sorghum	5/25	736.	0.12	0.13	0.16	5 leaves	2369.
Sorghum	6/05	495.	0.07	0.07	0.09	5 leaves	2369.
Sorghum	6/12	317.	0.05	0.05	0.06	3 leaves	2369.
Sorghum	6/19	128.	0.02	0.03	0.04	Emergence	2369.
Soybean	5/08	1013.	0.22	0.22	0.26	FullBloom	2450.
Soybean	5/15	907.	0.19	0.20	0.24	BegBloom	2450.
Soybean	5/22	808.	0.16	0.17	0.21	BegBloom	2450.
Soybean	5/25	736.	0.14	0.15	0.19	ThirdNode	2450.
Soybean	6/05	495.	0.08	0.09	0.10	SecondNode	2450.
Soybean	6/12	317.	0.04	0.05	0.07	FirstNode	2450.
Wheat	2/22	2058.	0.04	0.01	0.01	Mature	2000.
Wheat	3/01	2024.	0.06	0.02	0.02	Mature	2000.
Wheat	3/08	1951.	0.10	0.06	0.04	Ripening	2000.
Wheat	3/15	1901.	0.12	0.09	0.07	Ripening	2000.
Wheat	3/22	1860.	0.14	0.11	0.09	Ripening	2000.
Wheat	3/29	1806.	0.16	0.13	0.12	Ripening	2000.

ITHACA 3E

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1841.	0.14	0.17	0.25	Full Cov	4500.
Alfalfa	4/01	1762.	0.14	0.17	0.25	Full Cov	4500.
Alfalfa	4/15	1680.	0.14	0.17	0.25	Full Cov	4500.
Corn	4/22	1201.	0.14	0.17	0.27	16leaves	2650.
Corn	4/29	1132.	0.13	0.16	0.25	16leaves	2650.
Corn	5/06	1030.	0.11	0.14	0.23	16leaves	2650.
Corn	5/13	926.	0.10	0.13	0.20	14leaves	2650.
Corn	5/20	815.	0.08	0.11	0.17	12leaves	2650.
Corn	5/27	675.	0.07	0.08	0.13	10leaves	2650.
Grass	3/15	1841.	0.10	0.12	0.18	Nr Full Cov	4500.
Grass	4/01	1762.	0.10	0.12	0.18	Nr Full Cov	4500.
Grass	4/15	1680.	0.10	0.12	0.18	Nr Full Cov	4500.
Soybean	5/08	997.	0.12	0.15	0.23	FullBloom	2450.
Soybean	5/15	896.	0.11	0.13	0.21	BegBloom	2450.
Soybean	5/22	795.	0.09	0.12	0.19	BegBloom	2450.
Soybean	5/25	722.	0.08	0.10	0.16	ThirdNode	2450.
Soybean	6/05	475.	0.04	0.06	0.09	SecondNode	2450.
Soybean	6/12	299.	0.02	0.03	0.06	FirstNode	2450.
Wheat	2/22	1936.	0.05	0.05	0.05	Ripening	2000.
Wheat	3/01	1914.	0.06	0.05	0.06	Ripening	2000.
Wheat	3/08	1872.	0.07	0.07	0.08	Ripening	2000.
Wheat	3/15	1841.	0.08	0.08	0.09	Ripening	2000.
Wheat	3/22	1817.	0.08	0.09	0.11	Ripening	2000.
Wheat	3/29	1782.	0.09	0.10	0.12	Stiff Dough	2000.

KEYSTONE 3W

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	979.	0.15	0.17	0.16	16leaves	2450.
Corn	4/29	934.	0.14	0.16	0.15	14leaves	2450.
Corn	5/06	863.	0.13	0.15	0.14	14leaves	2450.
Corn	5/13	776.	0.11	0.13	0.12	12leaves	2450.
Corn	5/20	698.	0.10	0.11	0.10	10leaves	2450.
Corn	5/27	573.	0.08	0.09	0.08	8leaves	2450.
Sorghum	5/15	761.	0.10	0.12	0.11	8lv-GrPtdif	2200.
Sorghum	5/22	677.	0.09	0.10	0.10	5 leaves	2369.
Sorghum	5/25	617.	0.08	0.09	0.09	5 leaves	2369.
Sorghum	6/05	407.	0.05	0.06	0.05	3 leaves	2369.
Sorghum	6/12	255.	0.03	0.04	0.04	3 leaves	2369.
Sorghum	6/19	99.	0.02	0.03	0.02	Emergence	2369.
Soybean	5/08	831.	0.14	0.16	0.15	BegBloom	2360.
Soybean	5/15	761.	0.12	0.14	0.13	ThirdNode	2360.
Soybean	5/22	677.	0.10	0.11	0.11	ThirdNode	2360.
Soybean	5/25	617.	0.08	0.10	0.10	ThirdNode	2360.
Soybean	6/05	407.	0.05	0.07	0.06	SecondNode	2360.
Soybean	6/12	255.	0.03	0.03	0.04	FirstNode	2360.
Sugar bee	4/21	979.	0.10	0.12	0.11	Cover70-80%	2700.
Sugar bee	5/01	906.	0.09	0.11	0.10	Cover70-80%	2700.
Sugar bee	5/18	711.	0.07	0.08	0.08	Cover50-70%	2700.
Sunflower	5/22	709.	0.19	0.22	0.19	Bud format.	2200.
Sunflower	6/02	480.	0.13	0.15	0.14	Early veg.	2200.
Wheat	2/22	1781.	0.08	0.07	0.03	Ripening	1840.
Wheat	3/01	1766.	0.08	0.07	0.03	Ripening	1840.
Wheat	3/08	1727.	0.10	0.09	0.05	Ripening	1840.
Wheat	3/15	1671.	0.12	0.12	0.07	Ripening	1840.
Wheat	3/22	1632.	0.14	0.14	0.09	Stiff Dough	1840.
Wheat	3/29	1578.	0.16	0.16	0.11	Stiff Dough	1840.

MCCOOK 4NE

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	1099.	0.21	0.19	0.21	16leaves	2500.
Corn	4/29	1043.	0.19	0.18	0.20	16leaves	2500.
Corn	5/06	950.	0.17	0.16	0.17	14leaves	2500.
Corn	5/13	851.	0.15	0.14	0.16	14leaves	2500.
Corn	5/20	758.	0.12	0.12	0.13	12leaves	2500.
Corn	5/27	626.	0.10	0.09	0.11	10leaves	2500.
Sorghum	5/15	830.	0.14	0.13	0.15	8lv-GrPtdif	2369.
Sorghum	5/22	736.	0.11	0.11	0.12	5 leaves	2369.
Sorghum	5/25	669.	0.10	0.10	0.11	5 leaves	2369.
Sorghum	6/05	455.	0.06	0.06	0.07	3 leaves	2369.
Sorghum	6/12	287.	0.04	0.04	0.05	3 leaves	2369.
Sorghum	6/19	108.	0.02	0.03	0.03	Emergence	2369.
Soybean	5/08	915.	0.18	0.17	0.19	BegBloom	2450.
Soybean	5/15	830.	0.16	0.15	0.17	BegBloom	2450.
Soybean	5/22	736.	0.13	0.13	0.14	ThirdNode	2450.
Soybean	5/25	669.	0.11	0.11	0.12	ThirdNode	2450.
Soybean	6/05	455.	0.07	0.07	0.08	SecondNode	2450.
Soybean	6/12	287.	0.04	0.04	0.05	FirstNode	2450.
Sunflower	5/15	905.	0.26	0.23	0.24	Flower init	2200.
Sunflower	5/25	739.	0.23	0.21	0.23	Bud format.	2200.
Sunflower	6/05	500.	0.16	0.15	0.17	Early veg.	2200.
Sunflower	6/15	230.	0.08	0.08	0.09	Early veg.	2200.
Wheat	2/22	1977.	0.07	0.04	0.02	Ripening	2000.
Wheat	3/01	1951.	0.08	0.05	0.03	Ripening	2000.
Wheat	3/08	1884.	0.11	0.08	0.06	Ripening	2000.
Wheat	3/15	1819.	0.14	0.11	0.08	Ripening	2000.
Wheat	3/22	1765.	0.16	0.13	0.11	Stiff Dough	2000.
Wheat	3/29	1699.	0.19	0.15	0.13	Stiff Dough	2000.

ORD 2N

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1668.	0.16	0.21	0.20	Full Cov	4500.
Alfalfa	4/01	1586.	0.16	0.21	0.20	Full Cov	4500.
Alfalfa	4/15	1509.	0.16	0.21	0.20	Full Cov	4500.
Corn	4/22	1028.	0.14	0.18	0.18	16leaves	2650.
Corn	4/29	980.	0.13	0.17	0.17	16leaves	2650.
Corn	5/06	900.	0.12	0.15	0.16	14leaves	2650.
Corn	5/13	816.	0.10	0.13	0.14	12leaves	2650.
Corn	5/20	733.	0.09	0.11	0.12	12leaves	2650.
Corn	5/27	604.	0.07	0.09	0.10	10leaves	2650.
Grass	4/01	1586.	0.12	0.15	0.14	Nr Full Cov	4500.
Grass	4/15	1509.	0.12	0.15	0.14	Nr Full Cov	4500.
Potato	4/15	1355.	0.16	0.20	0.20	Early Tuber	3655.
Potato	4/25	1313.	0.15	0.20	0.20	Early Tuber	3655.
Potato	5/05	1188.	0.14	0.18	0.18	Early Tuber	3655.
Potato	5/15	1037.	0.12	0.16	0.17	Blossom	3655.
Potato	5/25	839.	0.10	0.13	0.13	Blossom	3655.
Soybean	5/08	870.	0.12	0.16	0.17	BegBloom	2360.
Soybean	5/15	802.	0.11	0.15	0.15	BegBloom	2360.
Soybean	5/22	717.	0.09	0.12	0.13	ThirdNode	2360.
Soybean	5/25	648.	0.07	0.10	0.11	ThirdNode	2360.
Soybean	6/05	433.	0.05	0.07	0.07	SecondNode	2360.
Soybean	6/12	272.	0.03	0.03	0.04	FirstNode	2360.
Wheat	2/22	1759.	0.07	0.08	0.04	Ripening	1840.
Wheat	3/01	1749.	0.08	0.08	0.05	Ripening	1840.
Wheat	3/08	1706.	0.09	0.10	0.07	Ripening	1840.
Wheat	3/15	1668.	0.10	0.12	0.09	Ripening	1840.
Wheat	3/22	1645.	0.11	0.13	0.10	Stiff Dough	1840.
Wheat	3/29	1605.	0.12	0.14	0.11	Stiff Dough	1840.

PLYMOUTH 4E

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1930.	0.18	0.19	0.24	Full Cov	4500.
Alfalfa	4/01	1832.	0.18	0.19	0.24	Full Cov	4500.
Alfalfa	4/15	1742.	0.18	0.19	0.24	Full Cov	4500.
Corn	4/22	1263.	0.18	0.20	0.26	16leaves	3000.
Corn	4/29	1198.	0.17	0.19	0.25	16leaves	3000.
Corn	5/06	1085.	0.15	0.17	0.23	16leaves	3000.
Corn	5/13	960.	0.14	0.15	0.20	14leaves	3000.
Corn	5/20	843.	0.11	0.13	0.18	14leaves	3000.
Corn	5/27	696.	0.09	0.10	0.14	10leaves	3000.
Grass	3/15	1930.	0.13	0.13	0.17	Nr Full Cov	4500.
Grass	4/01	1832.	0.13	0.13	0.17	Nr Full Cov	4500.
Grass	4/15	1742.	0.13	0.13	0.17	Nr Full Cov	4500.
Sorghum	5/15	924.	0.13	0.14	0.20	8lv-GrPtdif	2369.
Sorghum	5/22	822.	0.10	0.12	0.17	8lv-GrPtdif	2369.
Sorghum	5/25	747.	0.09	0.10	0.14	5 leaves	2369.
Sorghum	6/05	496.	0.05	0.06	0.08	5 leaves	2369.
Sorghum	6/12	317.	0.03	0.04	0.06	3 leaves	2369.
Sorghum	6/19	124.	0.02	0.02	0.03	Emergence	2369.
Soybean	5/08	1049.	0.16	0.17	0.23	FullBloom	2450.
Soybean	5/15	924.	0.14	0.15	0.21	BegBloom	2450.
Soybean	5/22	822.	0.12	0.13	0.19	BegBloom	2450.
Soybean	5/25	747.	0.10	0.12	0.17	ThirdNode	2450.
Soybean	6/05	496.	0.06	0.07	0.09	SecondNode	2450.
Soybean	6/12	317.	0.03	0.04	0.06	FirstNode	2450.
Wheat	2/22	2063.	0.02	0.00	0.01	Mature	2000.
Wheat	3/01	2033.	0.03	0.00	0.01	Mature	2000.
Wheat	3/08	1974.	0.06	0.04	0.02	Ripening	2000.
Wheat	3/15	1930.	0.07	0.05	0.05	Ripening	2000.
Wheat	3/22	1897.	0.09	0.07	0.06	Ripening	2000.
Wheat	3/29	1851.	0.10	0.08	0.08	Ripening	2000.

RAGAN 5W

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	1124.	0.23	0.23	0.25	16leaves	2700.
Corn	4/29	1070.	0.21	0.21	0.24	16leaves	2700.
Corn	5/06	972.	0.19	0.19	0.21	16leaves	2700.
Corn	5/13	872.	0.17	0.17	0.19	14leaves	2700.
Corn	5/20	779.	0.14	0.14	0.16	12leaves	2700.
Corn	5/27	644.	0.11	0.11	0.13	10leaves	2700.
Sorghum	5/15	852.	0.15	0.16	0.18	8lv-GrPtdif	2200.
Sorghum	5/22	761.	0.13	0.13	0.15	8lv-GrPtdif	2369.
Sorghum	5/25	690.	0.11	0.11	0.13	5 leaves	2369.
Sorghum	6/05	463.	0.07	0.07	0.08	3 leaves	2369.
Sorghum	6/12	298.	0.04	0.05	0.05	3 leaves	2369.
Sorghum	6/19	114.	0.02	0.03	0.03	Emergence	2369.
Soybean	5/08	937.	0.20	0.20	0.22	BegBloom	2450.
Soybean	5/15	852.	0.18	0.18	0.20	BegBloom	2450.
Soybean	5/22	761.	0.15	0.15	0.18	ThirdNode	2450.
Soybean	5/25	690.	0.12	0.13	0.15	ThirdNode	2450.
Soybean	6/05	463.	0.08	0.08	0.09	SecondNode	2450.
Soybean	6/12	298.	0.04	0.05	0.06	FirstNode	2450.
Wheat	2/22	1953.	0.09	0.06	0.03	Ripening	2000.
Wheat	3/01	1922.	0.10	0.07	0.05	Ripening	2000.
Wheat	3/08	1860.	0.13	0.10	0.08	Ripening	2000.
Wheat	3/15	1804.	0.16	0.13	0.11	Stiff Dough	2000.
Wheat	3/22	1762.	0.18	0.15	0.13	Stiff Dough	2000.
Wheat	3/29	1708.	0.20	0.17	0.15	Stiff Dough	2000.

SCOTTSBLUFF

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	891.	0.14	0.17	0.18	14leaves	2450.
Corn	4/29	833.	0.13	0.16	0.16	12leaves	2450.
Corn	5/13	688.	0.10	0.12	0.13	10leaves	2450.
Corn	5/20	613.	0.08	0.11	0.11	10leaves	2450.
Corn	6/06	344.	0.03	0.04	0.05	4leaves	2450.
Corn	6/27	0.	0.00	0.00	0.00	2leaves	2450.
Sugar bee	4/25	875.	0.09	0.12	0.12	Cover70-80%	2700.
Sugar bee	5/05	788.	0.08	0.10	0.11	Cover50-70%	2700.
Sugar bee	5/15	672.	0.07	0.08	0.09	Cover50-70%	2700.
Sunflower	5/25	585.	0.16	0.20	0.21	Early veg.	2200.
Sunflower	6/05	391.	0.11	0.14	0.15	Early veg.	2200.
Wheat	2/22	1723.	0.10	0.10	0.07	Ripening	1840.
Wheat	3/01	1707.	0.11	0.11	0.08	Ripening	1840.
Wheat	3/08	1662.	0.12	0.13	0.10	Stiff Dough	1840.
Wheat	3/15	1599.	0.15	0.16	0.13	Stiff Dough	1840.
Wheat	3/22	1551.	0.17	0.19	0.15	Stiff Dough	1840.
Wheat	3/29	1485.	0.19	0.22	0.18	Stiff Dough	1840.

SIDNEY 2NW

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Corn	4/22	900.	0.14	0.16	0.17	14leaves	2400.
Corn	4/29	854.	0.13	0.15	0.16	14leaves	2400.
Corn	5/06	795.	0.12	0.13	0.15	12leaves	2400.
Corn	5/13	714.	0.10	0.11	0.13	10leaves	2400.
Corn	5/16	691.	0.10	0.11	0.12	10leaves	2700.
Corn	5/20	640.	0.09	0.10	0.11	10leaves	2400.
Corn	5/27	526.	0.07	0.08	0.09	8leaves	2400.
Sugar bee	4/26	880.	0.09	0.10	0.11	Cover70-80%	2700.
Sugar bee	5/05	808.	0.08	0.09	0.11	Cover50-70%	2700.
Sunflower	5/27	571.	0.16	0.18	0.20	Early veg.	2200.
Sunflower	6/07	364.	0.10	0.12	0.14	Early veg.	2200.
Wheat	2/22	1675.	0.12	0.11	0.09	Ripening	1840.
Wheat	3/01	1659.	0.13	0.12	0.10	Stiff Dough	1840.
Wheat	3/08	1619.	0.14	0.14	0.12	Stiff Dough	1840.
Wheat	3/15	1562.	0.17	0.16	0.14	Stiff Dough	1840.
Wheat	3/22	1516.	0.18	0.18	0.16	Stiff Dough	1840.
Wheat	3/29	1457.	0.20	0.20	0.19	Stiff Dough	1840.

WEST POINT 2

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1742.	0.13	0.17	0.22	Full Cov	4500.
Alfalfa	4/01	1673.	0.13	0.17	0.22	Full Cov	4500.
Alfalfa	4/15	1616.	0.13	0.17	0.22	Full Cov	4500.
Corn	4/22	1135.	0.12	0.17	0.23	16leaves	2600.
Corn	4/29	1074.	0.11	0.16	0.21	16leaves	2600.
Corn	5/06	981.	0.10	0.14	0.19	16leaves	2600.
Corn	5/13	888.	0.09	0.12	0.17	14leaves	2600.
Corn	5/20	794.	0.08	0.11	0.15	12leaves	2600.
Corn	5/27	658.	0.06	0.08	0.12	10leaves	2600.
Grass	3/15	1742.	0.09	0.12	0.15	Nr Full Cov	4500.
Grass	4/01	1673.	0.09	0.12	0.15	Nr Full Cov	4500.
Grass	4/15	1616.	0.09	0.12	0.15	Nr Full Cov	4500.
Soybean	5/08	950.	0.11	0.15	0.20	BegBloom	2360.
Soybean	5/15	873.	0.10	0.13	0.18	BegBloom	2360.
Soybean	5/22	779.	0.08	0.12	0.16	BegBloom	2360.
Soybean	5/25	707.	0.07	0.10	0.14	ThirdNode	2360.
Soybean	6/05	457.	0.04	0.06	0.08	SecondNode	2360.
Soybean	6/12	284.	0.02	0.03	0.05	FirstNode	2360.
Wheat	2/22	1807.	0.08	0.09	0.10	Ripening	2000.
Wheat	3/01	1796.	0.08	0.10	0.10	Stiff Dough	2000.
Wheat	3/08	1761.	0.09	0.11	0.11	Stiff Dough	2000.
Wheat	3/15	1742.	0.09	0.11	0.12	Stiff Dough	2000.
Wheat	3/22	1725.	0.10	0.12	0.13	Stiff Dough	2000.
Wheat	3/29	1690.	0.11	0.13	0.14	Stiff Dough	2000.

YORK 2W

Crop	Emergence	Accum GDD	ET Past Seven	ET Past Three	ET Next Three	Stage	Mature GDD
Alfalfa	3/15	1838.	0.16	0.17	0.23	Full Cov	4500.
Alfalfa	4/01	1746.	0.16	0.17	0.23	Full Cov	4500.
Alfalfa	4/15	1665.	0.16	0.17	0.23	Full Cov	4500.
Corn	4/22	1200.	0.16	0.17	0.25	16leaves	2720.
Corn	4/29	1136.	0.15	0.16	0.23	16leaves	2720.
Corn	5/06	1035.	0.13	0.14	0.21	16leaves	2720.
Corn	5/13	926.	0.12	0.13	0.18	14leaves	2720.
Corn	5/20	821.	0.10	0.11	0.16	12leaves	2720.
Corn	5/27	679.	0.08	0.08	0.12	10leaves	2720.
Grass	3/15	1838.	0.11	0.12	0.16	Nr Full Cov	4500.
Grass	4/01	1746.	0.11	0.12	0.16	Nr Full Cov	4500.
Grass	4/15	1665.	0.11	0.12	0.16	Nr Full Cov	4500.
Sorghum	5/15	902.	0.11	0.12	0.18	8lv-GrPtdif	2200.
Sorghum	5/22	804.	0.09	0.10	0.15	8lv-GrPtdif	2200.
Sorghum	5/25	728.	0.08	0.09	0.13	5 leaves	2200.
Sorghum	6/05	482.	0.04	0.05	0.08	3 leaves	2200.
Sorghum	6/12	306.	0.03	0.03	0.05	3 leaves	2200.
Sorghum	6/19	117.	0.01	0.02	0.03	Emergence	2200.
Soybean	5/08	999.	0.14	0.15	0.21	FullBloom	2450.
Soybean	5/15	902.	0.13	0.13	0.20	BegBloom	2450.
Soybean	5/22	804.	0.11	0.12	0.17	BegBloom	2450.
Soybean	5/25	728.	0.09	0.10	0.15	ThirdNode	2450.
Soybean	6/05	482.	0.05	0.06	0.09	SecondNode	2450.
Soybean	6/12	306.	0.03	0.03	0.06	FirstNode	2450.
Wheat	2/22	1961.	0.06	0.04	0.03	Ripening	2000.
Wheat	3/01	1935.	0.07	0.05	0.04	Ripening	2000.
Wheat	3/08	1878.	0.08	0.07	0.07	Ripening	2000.
Wheat	3/15	1838.	0.10	0.08	0.09	Ripening	2000.
Wheat	3/22	1810.	0.10	0.09	0.10	Ripening	2000.
Wheat	3/29	1767.	0.12	0.10	0.12	Stiff Dough	2000.

Growing Degree Days & Evapotranspiration Data

// <![CDATA[ WDN.initializePlugin("jqueryui", [function () { var $ = require("jquery"); $( "#accordion" ).accordion({ heightStyle: "content", collapsible: true, active: false }); }]); // ]]>

GDD Resources

Growing Degree Days and Crop Water Use Summary (Evapotranspiration) Updated 6-24-2018 - Courtesy of the High Plains Regional Climate Center