Casselton North Dakota Climate Data

Monthly Average Climate Data for Casselton North Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-18.2 °C-8.3 °C13.46 mm
February-15.9 °C-5.3 °C14.48 mm
March-8.3 °C1.8 °C25.4 mm
April-0.4 °C12.1 °C33.78 mm
May6.9 °C20.1 °C81.28 mm
June13.2 °C25.2 °C106.68 mm
July15.1 °C27.4 °C92.46 mm
August13.6 °C26.9 °C66.8 mm
September8.6 °C22.3 °C70.1 mm
October1.7 °C13.5 °C57.91 mm
November-6.3 °C3.5 °C19.81 mm
December-13.6 °C-4.6 °C18.8 mm
Annual-0.3 °C11.2 °C600.96 mm

Climate Data for Casselton North Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 11 - May 20
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 ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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