Denver Iowa Climate Data

Monthly Average Climate Data for Denver Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.9 °C-3.4 °C26.92 mm
February-10.7 °C-1.1 °C28.7 mm
March-4.2 °C6.4 °C50.55 mm
April2.3 °C14.6 °C100.33 mm
May9.2 °C21.2 °C125.48 mm
June15.2 °C26.6 °C148.84 mm
July16.9 °C28.2 °C117.35 mm
August15.4 °C27.2 °C105.66 mm
September10.5 °C23.8 °C91.69 mm
October3.7 °C16.3 °C72.39 mm
November-3.2 °C7.3 °C49.02 mm
December-9.2 °C-0.2 °C39.62 mm
Annual2.8 °C13.9 °C956.55 mm

Climate Data for Denver Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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