Hartwick Iowa Climate Data

Monthly Average Climate Data for Hartwick Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.5 °F27.4 °F1.11 in.
February14.7 °F32.3 °F1.33 in.
March26.0 °F45.4 °F2.12 in.
April37.0 °F59.3 °F3.63 in.
May50.0 °F71.2 °F4.72 in.
June61.2 °F81.1 °F5.37 in.
July64.2 °F84.4 °F4.2 in.
August61.2 °F82.5 °F4.23 in.
September52.2 °F75.3 °F3.58 in.
October40.2 °F62.0 °F2.85 in.
November28.1 °F46.4 °F2.08 in.
December17.8 °F33.2 °F1.54 in.
Annual38.7 °F58.4 °F36.76 in.

Climate Data for Hartwick Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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