Historical Delta T
Maps of maximum Delta T and concurrent wind speed are derived from North Dakota Agricultural Weather Network hourly data, which is available at NDAWN.org.
See the Archive for historical maps dating back to May 1.
ATTENTION. The 2025 growing season has concluded and daily updates of this site have been disabled. This is a static website view as of October 31, 2025.
Maps of maximum Delta T and concurrent wind speed are derived from North Dakota Agricultural Weather Network hourly data, which is available at NDAWN.org.
See the Archive for historical maps dating back to May 1.