Janesville Minnesota Climate Data

Monthly Average Climate Data for Janesville Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.8 °F23.0 °F0.88 in.
February9.6 °F27.6 °F0.9 in.
March22.4 °F40.1 °F1.76 in.
April34.7 °F55.8 °F3.08 in.
May47.2 °F68.1 °F4.33 in.
June58.3 °F78.3 °F5.29 in.
July61.5 °F81.4 °F4.63 in.
August59.0 °F79.2 °F4.53 in.
September50.6 °F73.1 °F3.79 in.
October37.6 °F59.2 °F2.56 in.
November25.0 °F42.5 °F1.55 in.
December13.1 °F28.6 °F1.13 in.
Annual35.4 °F54.7 °F34.43 in.

Climate Data for Janesville Minnesota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com