Ollie Iowa Climate Data

Monthly Average Climate Data for Ollie Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.9 °F31.1 °F1.3 in.
February17.5 °F35.7 °F1.58 in.
March28.2 °F48.8 °F2.28 in.
April39.3 °F62.0 °F3.77 in.
May51.2 °F72.1 °F5.15 in.
June61.3 °F81.6 °F5.24 in.
July64.7 °F85.3 °F4.17 in.
August62.3 °F83.5 °F4.23 in.
September53.4 °F77.0 °F3.62 in.
October41.6 °F64.3 °F2.86 in.
November30.0 °F49.0 °F2.22 in.
December19.8 °F36.3 °F1.64 in.
Annual40.3 °F60.6 °F38.06 in.

Climate Data for Ollie 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 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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