Willmar Minnesota Climate Data

Monthly Average Climate Data for Willmar Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January3.1 °F20.9 °F0.71 in.
February6.4 °F25.4 °F0.8 in.
March19.6 °F38.0 °F1.44 in.
April33.0 °F53.9 °F2.56 in.
May46.1 °F67.6 °F3.42 in.
June57.1 °F77.1 °F4.77 in.
July61.1 °F81.1 °F3.95 in.
August58.1 °F78.9 °F4.12 in.
September49.5 °F72.1 °F2.95 in.
October36.4 °F57.1 °F2.45 in.
November23.1 °F40.2 °F1.29 in.
December10.4 °F26.3 °F0.95 in.
Annual33.7 °F53.2 °F29.41 in.

Climate Data for Willmar Minnesota

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 : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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