Fort Pierre South Dakota Climate Data

Monthly Average Climate Data for Fort Pierre South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.2 °F29.9 °F0.42 in.
February10.6 °F34.5 °F0.49 in.
March21.0 °F46.1 °F0.78 in.
April31.9 °F58.1 °F1.93 in.
May44.4 °F69.3 °F3.05 in.
June55.3 °F79.6 °F3.33 in.
July61.4 °F87.8 °F2.47 in.
August58.5 °F87.0 °F2.14 in.
September48.7 °F77.9 °F1.63 in.
October34.5 °F61.6 °F1.44 in.
November21.4 °F46.2 °F0.41 in.
December10.7 °F33.2 °F0.36 in.
Annual33.8 °F59.3 °F18.45 in.

Climate Data for Fort Pierre 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 ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate