Isabel South Dakota Climate Data

Monthly Average Climate Data for Isabel South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.9 °F27.9 °F0.43 in.
February11.1 °F31.6 °F0.54 in.
March20.5 °F43.2 °F0.96 in.
April31.1 °F56.1 °F1.61 in.
May42.8 °F67.2 °F2.71 in.
June53.2 °F77.6 °F3.35 in.
July59.0 °F85.7 °F2.65 in.
August56.8 °F85.1 °F1.76 in.
September47.1 °F75.7 °F1.37 in.
October33.9 °F59.0 °F1.76 in.
November21.1 °F43.5 °F0.43 in.
December11.4 °F31.4 °F0.46 in.
Annual33 °F57 °F18.03 in.

Climate Data for Isabel South Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
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 ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate