Grenville South Dakota Climate Data

Monthly Average Climate Data for Grenville South Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-16.4 °C-6.3 °C16 mm
February-14.4 °C-3.7 °C14.99 mm
March-7.8 °C2.9 °C23.11 mm
April-0.2 °C11.6 °C55.12 mm
May7.3 °C19.1 °C72.64 mm
June13.6 °C24.4 °C94.74 mm
July16.1 °C27.2 °C101.35 mm
August15.2 °C26.6 °C63.25 mm
September10.3 °C22.1 °C59.69 mm
October2.6 °C13.7 °C55.63 mm
November-5.2 °C4.2 °C17.53 mm
December-12.4 °C-3.4 °C18.54 mm
Annual0.7 °C11.5 °C592.59 mm

Climate Data for Grenville 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