Morrison Iowa Climate Data

Monthly Average Climate Data for Morrison Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.6 °F26.7 °F0.92 in.
February13.7 °F31.4 °F1.09 in.
March25.1 °F44.6 °F2.08 in.
April36.4 °F59.2 °F3.84 in.
May49.0 °F70.6 °F4.86 in.
June59.7 °F80.2 °F5.77 in.
July62.8 °F83.2 °F4.3 in.
August60.0 °F81.3 °F4.35 in.
September51.2 °F75.4 °F3.35 in.
October39.1 °F62.2 °F2.74 in.
November26.9 °F45.8 °F1.91 in.
December16.1 °F32.5 °F1.47 in.
Annual37.5 °F57.8 °F36.68 in.

Climate Data for Morrison Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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