De Smet South Dakota Climate Data

Monthly Average Climate Data for De Smet South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.1 °F23.3 °F0.57 in.
February9.3 °F28.5 °F0.68 in.
March20.8 °F40.5 °F1.12 in.
April33.1 °F55.4 °F2.4 in.
May45.6 °F67.7 °F3.37 in.
June56.6 °F77.5 °F4.43 in.
July61.1 °F82.5 °F3.5 in.
August58.6 °F80.2 °F2.92 in.
September49.9 °F72.9 °F2.75 in.
October36.2 °F58.4 °F2.12 in.
November22.6 °F41.9 °F0.79 in.
December11.0 °F28.2 °F0.67 in.
Annual34.2 °F54.8 °F25.32 in.

Climate Data for De Smet South Dakota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation