Greenfield Wisconsin Climate Data

Monthly Average Climate Data for Greenfield Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.4 °F29.2 °F1.81 in.
February16.4 °F32.8 °F1.72 in.
March25.4 °F43.3 °F2.05 in.
April35.8 °F55.5 °F4.02 in.
May46.7 °F67.2 °F4.2 in.
June56.8 °F77.3 °F4.96 in.
July62.1 °F82.0 °F3.61 in.
August60.7 °F80.7 °F3.8 in.
September52.5 °F73.7 °F3.35 in.
October41.0 °F60.9 °F2.91 in.
November29.9 °F46.7 °F2.2 in.
December19.7 °F34.5 °F2.09 in.
Annual38.4 °F57 °F36.72 in.

Climate Data for Greenfield 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 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation