Keokuk Iowa Climate Data

Monthly Average Climate Data for Keokuk Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.2 °C1 °C42.67 mm
February-6.2 °C3.6 °C46.99 mm
March-0.6 °C10.3 °C65.28 mm
April5.5 °C17.3 °C102.87 mm
May11.8 °C23 °C136.14 mm
June17.3 °C28.1 °C128.02 mm
July19.4 °C30.2 °C106.93 mm
August18.2 °C29.3 °C95.76 mm
September13.5 °C25.7 °C91.69 mm
October6.9 °C18.7 °C82.8 mm
November0.5 °C10.7 °C66.8 mm
December-5.1 °C3.7 °C49.53 mm
Annual6.1 °C16.8 °C1015.48 mm

Climate Data for Keokuk Iowa

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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