Garretson South Dakota Climate Data

Monthly Average Climate Data for Garretson South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.2 °F24.2 °F0.68 in.
February10.4 °F29.0 °F0.86 in.
March22.0 °F41.5 °F1.45 in.
April33.6 °F56.1 °F2.88 in.
May46.5 °F68.3 °F3.76 in.
June58.0 °F78.3 °F4.49 in.
July61.5 °F82.5 °F3.49 in.
August58.7 °F80.3 °F3.39 in.
September49.7 °F73.6 °F3.15 in.
October36.6 °F59.5 °F2.3 in.
November23.2 °F43.1 °F1.27 in.
December11.9 °F29.0 °F0.97 in.
Annual34.9 °F55.5 °F28.69 in.

Climate Data for Garretson 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 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation