Roslyn South Dakota Climate Data

Monthly Average Climate Data for Roslyn South Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-16.4 °C-6.5 °C17.02 mm
February-14.3 °C-3.7 °C16.26 mm
March-7.8 °C2.9 °C25.4 mm
April-0.2 °C11.5 °C55.88 mm
May7.3 °C19 °C76.2 mm
June13.5 °C24.3 °C99.57 mm
July16.1 °C27.1 °C99.82 mm
August15.2 °C26.4 °C64.77 mm
September10.4 °C21.9 °C61.72 mm
October2.6 °C13.6 °C57.4 mm
November-5.2 °C4 °C18.8 mm
December-12.3 °C-3.6 °C19.3 mm
Annual0.7 °C11.4 °C612.14 mm

Climate Data for Roslyn 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 : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year