Grand Forks North Dakota Climate Data

Monthly Average Climate Data for Grand Forks North Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-19.2 °C-9.4 °C14.99 mm
February-17.2 °C-6.8 °C14.22 mm
March-9.3 °C0.5 °C22.35 mm
April-0.8 °C10.7 °C27.18 mm
May6.2 °C18.9 °C71.63 mm
June12.7 °C24.2 °C96.77 mm
July14.7 °C26.6 °C87.38 mm
August13.1 °C26.3 °C76.96 mm
September8.1 °C21.2 °C64.01 mm
October1.2 °C12.3 °C48.51 mm
November-7 °C2.2 °C20.32 mm
December-14.6 °C-6.2 °C19.3 mm
Annual-1 °C10 °C563.62 mm

Climate Data for Grand Forks North 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 4a : -34.4°C to -31.7°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