Groton South Dakota Climate Data

Monthly Average Climate Data for Groton South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January1.9 °F21.4 °F0.6 in.
February6.6 °F26.9 °F0.64 in.
March19.0 °F39.7 °F1.0 in.
April31.7 °F55.6 °F2.07 in.
May44.8 °F68.4 °F3.11 in.
June55.6 °F78.0 °F3.93 in.
July60.0 °F82.9 °F3.62 in.
August57.2 °F81.7 °F2.25 in.
September47.8 °F73.6 °F2.13 in.
October34.2 °F58.5 °F2.21 in.
November20.4 °F41.1 °F0.77 in.
December8.5 °F27.0 °F0.65 in.
Annual32.3 °F54.6 °F22.98 in.

Climate Data for Groton 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 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year