Brookfield Wisconsin Climate Data

Monthly Average Climate Data for Brookfield Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.6 °F28.2 °F1.72 in.
February15.5 °F31.9 °F1.61 in.
March24.7 °F42.8 °F2.01 in.
April35.4 °F55.2 °F3.84 in.
May46.2 °F67.0 °F4.02 in.
June56.2 °F76.9 °F4.78 in.
July61.4 °F81.7 °F3.85 in.
August59.9 °F80.1 °F3.74 in.
September51.7 °F73.1 °F3.15 in.
October40.4 °F60.2 °F2.82 in.
November29.4 °F45.9 °F2.07 in.
December19.1 °F33.7 °F2.01 in.
Annual37.7 °F56.4 °F35.62 in.

Climate Data for Brookfield Wisconsin

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness ZoneZone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation