Koshkonong Wisconsin Climate Data

Monthly Average Climate Data for Koshkonong Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.5 °F27.7 °F1.56 in.
February14.4 °F31.5 °F1.54 in.
March24.9 °F43.6 °F2.03 in.
April36.0 °F56.8 °F3.67 in.
May47.7 °F69.1 °F4.13 in.
June57.6 °F79.0 °F5.17 in.
July61.7 °F82.6 °F3.97 in.
August59.8 °F80.8 °F4.11 in.
September51.5 °F74.1 °F3.45 in.
October39.9 °F60.9 °F2.92 in.
November28.8 °F45.9 °F2.25 in.
December18.3 °F33.1 °F1.81 in.
Annual37.7 °F57.1 °F36.61 in.

Climate Data for Koshkonong Wisconsin

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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