Roswell South Dakota Climate Data

Monthly Average Climate Data for Roswell South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.7 °F25.4 °F0.51 in.
February10.9 °F30.8 °F0.67 in.
March21.8 °F43.0 °F1.19 in.
April33.7 °F57.5 °F2.73 in.
May46.3 °F69.4 °F3.6 in.
June57.4 °F79.4 °F3.78 in.
July61.5 °F84.8 °F2.87 in.
August59.3 °F82.6 °F2.82 in.
September50.5 °F74.9 °F2.78 in.
October36.5 °F60.5 °F2.13 in.
November22.9 °F43.7 °F0.88 in.
December11.6 °F30.0 °F0.58 in.
Annual34.9 °F56.8 °F24.54 in.

Climate Data for Roswell 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 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