Bloomington Wisconsin Climate Data

Monthly Average Climate Data for Bloomington Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.9 °F26.3 °F1.24 in.
February13.4 °F30.9 °F1.25 in.
March25.1 °F43.5 °F1.99 in.
April36.5 °F57.2 °F3.86 in.
May48.2 °F68.9 °F4.52 in.
June58.4 °F78.2 °F5.83 in.
July62.3 °F81.7 °F4.75 in.
August60.2 °F79.9 °F3.99 in.
September51.8 °F73.1 °F3.92 in.
October39.8 °F60.0 °F2.87 in.
November27.9 °F44.7 °F2.18 in.
December17.0 °F32.0 °F1.61 in.
Annual37.5 °F56.4 °F38.01 in.

Climate Data for Bloomington Wisconsin

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°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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