Corning Iowa Climate Data

Monthly Average Climate Data for Corning Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.8 °C-0.2 °C20.83 mm
February-8.4 °C2.7 °C29.21 mm
March-2.5 °C9.7 °C53.09 mm
April3.3 °C16.4 °C86.61 mm
May10.2 °C22.2 °C135.13 mm
June15.9 °C27.2 °C133.6 mm
July18.1 °C29.4 °C98.3 mm
August16.7 °C28.6 °C88.9 mm
September11.6 °C24.9 °C91.69 mm
October4.7 °C17.9 °C73.41 mm
November-2.1 °C9.6 °C48.77 mm
December-7.7 °C2.5 °C29.97 mm
Annual4.1 °C15.9 °C889.51 mm

Climate Data for Corning 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 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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