Casselton North Dakota Climate Data

Monthly Average Climate Data for Casselton North Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January-0.8 °F17.1 °F0.53 in.
February3.4 °F22.4 °F0.57 in.
March17.0 °F35.2 °F1.0 in.
April31.3 °F53.7 °F1.33 in.
May44.5 °F68.2 °F3.2 in.
June55.7 °F77.3 °F4.2 in.
July59.2 °F81.3 °F3.64 in.
August56.5 °F80.5 °F2.63 in.
September47.4 °F72.2 °F2.76 in.
October35.0 °F56.3 °F2.28 in.
November20.6 °F38.3 °F0.78 in.
December7.5 °F23.7 °F0.74 in.
Annual31.4 °F52.2 °F23.66 in.

Climate Data for Casselton 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 : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year