Heron Lake Minnesota Climate Data

Monthly Average Climate Data for Heron Lake Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-14.3 °C-4.8 °C18.03 mm
February-12.2 °C-2.3 °C21.34 mm
March-5.6 °C4.6 °C39.88 mm
April1.2 °C13.4 °C75.95 mm
May8.3 °C20.2 °C106.43 mm
June14.5 °C25.8 °C117.09 mm
July16.6 °C27.9 °C95.76 mm
August15 °C26.5 °C93.98 mm
September10.3 °C23.2 °C80.52 mm
October2.9 °C15.2 °C59.69 mm
November-4.3 °C5.9 °C33.02 mm
December-10.9 °C-1.9 °C24.64 mm
Annual1.8 °C12.8 °C766.33 mm

Climate Data for Heron Lake 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 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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