Hopkinton Iowa Climate Data

Monthly Average Climate Data for Hopkinton Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.3 °C-2.7 °C31.5 mm
February-10.2 °C-0.3 °C35.56 mm
March-3.8 °C7.1 °C55.12 mm
April2.3 °C14.9 °C98.3 mm
May8.9 °C21.3 °C115.82 mm
June14.7 °C26.6 °C147.83 mm
July16.6 °C28.2 °C119.38 mm
August15.2 °C27.3 °C112.78 mm
September10.3 °C23.7 °C95 mm
October3.7 °C16.4 °C78.49 mm
November-2.7 °C7.7 °C57.15 mm
December-8.5 °C0.4 °C42.67 mm
Annual2.9 °C14.2 °C989.6 mm

Climate Data for Hopkinton Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
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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