Rochester Iowa Climate Data

Monthly Average Climate Data for Rochester Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.6 °C-1.3 °C34.04 mm
February-8.5 °C1.2 °C40.13 mm
March-2.4 °C8.4 °C59.69 mm
April3.8 °C16.2 °C94.23 mm
May10.4 °C22.3 °C120.14 mm
June16 °C27.4 °C130.05 mm
July17.8 °C29.1 °C108.46 mm
August16.4 °C28.2 °C106.43 mm
September11.8 °C24.9 °C91.19 mm
October5.2 °C17.7 °C75.18 mm
November-1.4 °C9.1 °C56.39 mm
December-7.2 °C1.7 °C44.96 mm
Annual4.3 °C15.4 °C960.89 mm

Climate Data for Rochester 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 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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