Gilman Iowa Climate Data

Monthly Average Climate Data for Gilman Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.6 °C-2.3 °C23.88 mm
February-9.4 °C0.3 °C29.46 mm
March-3.3 °C7.6 °C51.31 mm
April2.8 °C15.5 °C103.89 mm
May9.9 °C21.6 °C121.67 mm
June15.7 °C26.8 °C141.48 mm
July17.7 °C28.6 °C113.03 mm
August16.2 °C27.5 °C111.76 mm
September11.3 °C24.3 °C86.11 mm
October4.5 °C17.1 °C67.31 mm
November-2.3 °C8.1 °C52.83 mm
December-8.2 °C0.8 °C35.31 mm
Annual3.6 °C14.7 °C938.04 mm

Climate Data for Gilman Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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