Hartford Iowa Climate Data

Monthly Average Climate Data for Hartford Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.3 °C-0.6 °C25.15 mm
February-8.2 °C1.9 °C33.02 mm
March-2.1 °C9.2 °C52.07 mm
April4.2 °C16.7 °C95.76 mm
May10.9 °C22.2 °C130.81 mm
June16.6 °C27.6 °C132.08 mm
July18.7 °C29.6 °C108.2 mm
August17.3 °C28.7 °C105.66 mm
September12.4 °C25.1 °C89.92 mm
October5.6 °C17.7 °C66.04 mm
November-1.2 °C9.4 °C44.2 mm
December-7.1 °C2.2 °C32.51 mm
Annual4.7 °C15.8 °C915.42 mm

Climate Data for Hartford Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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