South Dakota State University
South Dakota Climate and Weather

Frost Dates for Coop Stations

Check out the frost/freeze dates in your area. Frost date(s) are grouped by last Spring and First fall occurrence. The last date when the temperature either was - or fell below - 36, 32, 28 or 24°F is reported. The date closest to the beginning of Fall for the same temperatures is reported.

Data found in the following two sections may be only updated until 2004, while maps are up to date through 2012

:: All dates for a single station ::

Average/Percentile day of the year for all stations
What is percentile?


Note: Stations not having data in the last 30 years will not be displayed when 30 year report is selected.