Hull Iowa Climate Data

Monthly Average Climate Data for Hull Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-13.7 °C-3.4 °C17.02 mm
February-11.2 °C-0.7 °C20.57 mm
March-4.9 °C6.4 °C40.89 mm
April1.4 °C14.7 °C76.96 mm
May8.5 °C21.5 °C101.85 mm
June14.7 °C27 °C117.09 mm
July16.6 °C28.7 °C85.6 mm
August15.2 °C27.5 °C85.6 mm
September10.1 °C24 °C78.49 mm
October3 °C16.6 °C61.47 mm
November-4.3 °C6.9 °C35.05 mm
December-10.5 °C-0.8 °C24.13 mm
Annual2.1 °C14 °C744.72 mm

Climate Data for Hull Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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