Duncombe Iowa Climate Data

Monthly Average Climate Data for Duncombe Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.7 °C-3.1 °C22.86 mm
February-10.6 °C-0.7 °C28.7 mm
March-3.9 °C6.7 °C52.32 mm
April2.3 °C15.1 °C95.5 mm
May9.3 °C21.4 °C128.27 mm
June15.3 °C26.9 °C139.19 mm
July17.2 °C28.6 °C107.44 mm
August15.6 °C27.3 °C116.08 mm
September10.6 °C24.1 °C82.8 mm
October3.6 °C16.8 °C65.79 mm
November-3.2 °C7.6 °C42.93 mm
December-9.3 °C-0.1 °C34.54 mm
Annual2.9 °C14.2 °C916.42 mm

Climate Data for Duncombe Iowa

Average First Frost DateOct. 1 - Oct. 10
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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