Hartwick Iowa Climate Data

Monthly Average Climate Data for Hartwick Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.4 °C-2.6 °C28.19 mm
February-9.6 °C0.2 °C33.78 mm
March-3.3 °C7.4 °C53.85 mm
April2.8 °C15.2 °C92.2 mm
May10 °C21.8 °C119.89 mm
June16.2 °C27.3 °C136.4 mm
July17.9 °C29.1 °C106.68 mm
August16.2 °C28.1 °C107.44 mm
September11.2 °C24.1 °C90.93 mm
October4.6 °C16.7 °C72.39 mm
November-2.2 °C8 °C52.83 mm
December-7.9 °C0.7 °C39.12 mm
Annual3.7 °C14.7 °C933.7 mm

Climate Data for Hartwick Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 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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