Hopkinton Iowa Climate Data

Monthly Average Climate Data for Hopkinton Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.9 °F27.1 °F1.24 in.
February13.6 °F31.5 °F1.4 in.
March25.2 °F44.7 °F2.17 in.
April36.2 °F58.9 °F3.87 in.
May48.0 °F70.3 °F4.56 in.
June58.4 °F79.8 °F5.82 in.
July61.8 °F82.8 °F4.7 in.
August59.4 °F81.1 °F4.44 in.
September50.5 °F74.6 °F3.74 in.
October38.7 °F61.6 °F3.09 in.
November27.1 °F45.8 °F2.25 in.
December16.7 °F32.8 °F1.68 in.
Annual37.1 °F57.6 °F38.96 in.

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 : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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