Bertha Minnesota Climate Data

Monthly Average Climate Data for Bertha Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January-0.7 °F18.3 °F0.59 in.
February2.8 °F23.6 °F0.6 in.
March16.0 °F36.2 °F1.1 in.
April30.1 °F51.8 °F2.1 in.
May43.3 °F65.1 °F3.47 in.
June54.1 °F74.1 °F4.46 in.
July58.5 °F79.0 °F4.26 in.
August55.7 °F77.3 °F3.29 in.
September47.3 °F69.0 °F2.73 in.
October34.2 °F54.0 °F2.79 in.
November21.0 °F37.5 °F0.96 in.
December7.6 °F23.8 °F0.75 in.
Annual30.8 °F50.8 °F27.1 in.

Climate Data for Bertha Minnesota

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