Clayton Iowa Climate Data

Monthly Average Climate Data for Clayton Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.6 °C-3.2 °C31.75 mm
February-10.7 °C-0.6 °C31.24 mm
March-4 °C6.4 °C50.55 mm
April2.4 °C14.2 °C96.27 mm
May8.9 °C20.7 °C117.6 mm
June14.7 °C26 °C147.07 mm
July16.8 °C27.9 °C117.6 mm
August15.6 °C26.9 °C98.81 mm
September10.9 °C23.2 °C97.03 mm
October4.2 °C15.9 °C71.37 mm
November-2.5 °C7.2 °C52.83 mm
December-8.6 °C-0.1 °C40.39 mm
Annual2.9 °C13.7 °C952.51 mm

Climate Data for Clayton 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 : -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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