Germantown Wisconsin Climate Data

Monthly Average Climate Data for Germantown Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.1 °F27.5 °F1.78 in.
February14.9 °F31.2 °F1.65 in.
March24.2 °F42.2 °F2.08 in.
April34.9 °F54.9 °F3.88 in.
May45.7 °F66.7 °F4.01 in.
June55.5 °F76.5 °F4.37 in.
July60.8 °F81.4 °F3.98 in.
August59.1 °F79.6 °F3.65 in.
September51.2 °F72.6 °F3.18 in.
October40.0 °F59.6 °F2.8 in.
November28.9 °F45.3 °F2.14 in.
December18.7 °F33.1 °F2.0 in.
Annual37.2 °F55.9 °F35.52 in.

Climate Data for Germantown Wisconsin

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness ZoneZone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation