North Dakota Agricultural Weather Network (NDAWN)

John W. Enz, NDAWN Center Director

Email:; Phone: 701-231-8576



The Central Grasslands Research Extension Center utilizes an  NDAWN station for many of the benefits described below.

What is NDAWN?

The North Dakota Agricultural Weather Network (NDAWN) was started in 1989 to provide current, accurate, detailed weather data and information for North Dakota. Today it consists of 67 automatic weather stations distributed across North Dakota and border regions of surrounding states. Weather data are retrieved daily from each station, checked for validity, and made available early each morning on the NDAWN web site ( free of charge. Many data summarization, mapping, and analysis features plus numerous applications are available.


What is NDAWN Good For? Instantaneous Weather Info at Your Fingertips!

Call any NDAWN station to obtain current temperatures, rainfall, wind speed and direction, humidity, and dewpoint. These data are especially useful for many people, but most just find them interesting, especially on stormy days.

What are NDAWN Data Good For? Agriculture!

Weather conditions throughout the growing season determine the development rate of crops, weeds, insects, and diseases. When scientists determine the relationship between daily weather and an organism’s development, they can write mathematical models that use daily weather data to mimic this development. Numerous NDAWN applications use these temperature or growing degree day (GDD) models to estimate crop growth stages and insect emergence throughout the season. This management information allows producers to quickly identify windows when chemical applications are recommended or when crops are susceptible to disease or insects. They can better plan chemical applications and

field scouting for pests. NDAWN applications using GDD to predict growth or development stages are already available for wheat, canola, sunflower, sugarbeet, potato, and corn. Barley will be added for 2004.

Other models can warn producers of impending disease or insect infestations so that corrective action may be taken at the optimum time to ensure maximum pesticide efficiency. Or they may indicate no action is required thus reducing pesticide use. In both cases the results are increased production, higher quality seed, reduced costs, and greater profit. The Small Grain Disease Forecaster determines the risk of occurrence of Scab, Tan Spot, Septoria, and Leaf Rust. White mold risk maps for canola are also available. Other models predict the occurrence of Potato Late Blight and Cercospora in sugarbeets before visible symptoms appear.

Irrigators regularly use NDAWN data to estimate daily crop water use for their irrigated crops. This allows them to more efficiently control irrigation applications. Over irrigation not only wastes water, but it leaches nitrogen and other chemicals into the ground water.


Valuable Resource for all North Dakota!

Please don’t let the word agriculture mislead you. The scope of NDAWN extends far beyond production agriculture. Many of the state’s construction, manufacturing, insurance, and retail businesses, utilities, attorneys, claims adjustors, scientists, news media, K-12 educators, hobbyists, etc. use these data. All federal agencies and many state and local government agencies, especially regulatory ones, find them indispensable. In addition, the National Weather Service uses NDAWN data for forecasting, especially during severe or rapidly changing weather conditions. University of North Dakota meteorologists use NDAWN data along with Doppler radar for regional, high precision rainfall, temperature, and wind forecasts.


NDSU Central Grasslands Research Extension Center
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