Oskaloosa Iowa Climate Data

Monthly Average Climate Data for Oskaloosa Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.6 °C-0.9 °C29.21 mm
February-8.4 °C1.7 °C40.13 mm
March-2.6 °C8.9 °C53.34 mm
April3.9 °C16.3 °C96.52 mm
May10.6 °C22 °C128.52 mm
June16.4 °C27.5 °C129.54 mm
July18.1 °C29.6 °C108.2 mm
August16.9 °C28.3 °C112.01 mm
September11.8 °C24.7 °C91.19 mm
October5.1 °C17.9 °C68.33 mm
November-1.4 °C9 °C57.15 mm
December-7.3 °C2.1 °C36.83 mm
Annual4.4 °C15.6 °C950.97 mm

Climate Data for Oskaloosa Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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