Green Grass South Dakota Climate Data

Monthly Average Climate Data for Green Grass South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.2 °F27.0 °F0.39 in.
February10.3 °F31.2 °F0.56 in.
March20.9 °F43.8 °F0.86 in.
April32.2 °F57.4 °F1.7 in.
May44.2 °F68.4 °F2.8 in.
June55.1 °F78.9 °F3.3 in.
July60.9 °F86.7 °F2.59 in.
August58.3 °F86.0 °F1.87 in.
September48.6 °F76.7 °F1.39 in.
October35.3 °F59.9 °F1.6 in.
November22.1 °F44.2 °F0.48 in.
December11.5 °F31.4 °F0.49 in.
Annual33.9 °F57.6 °F18.03 in.

Climate Data for Green Grass South Dakota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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