Green Valley South Dakota Climate Data

Monthly Average Climate Data for Green Valley South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.1 °F36.1 °F0.33 in.
February16.0 °F38.0 °F0.49 in.
March24.2 °F47.9 °F0.96 in.
April33.0 °F56.0 °F2.05 in.
May43.8 °F65.4 °F3.74 in.
June53.9 °F77.0 °F3.0 in.
July60.4 °F85.7 °F2.17 in.
August58.5 °F84.8 °F1.68 in.
September49.3 °F75.6 °F1.26 in.
October36.4 °F60.8 °F1.48 in.
November25.0 °F47.9 °F0.49 in.
December16.4 °F37.5 °F0.37 in.
Annual35.9 °F59.4 °F18.02 in.

Climate Data for Green Valley South Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate