Morrison Iowa Climate Data

Monthly Average Climate Data for Morrison Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.4 °C-2.9 °C23.37 mm
February-10.2 °C-0.3 °C27.69 mm
March-3.8 °C7 °C52.83 mm
April2.4 °C15.1 °C97.54 mm
May9.4 °C21.4 °C123.44 mm
June15.4 °C26.8 °C146.56 mm
July17.1 °C28.4 °C109.22 mm
August15.6 °C27.4 °C110.49 mm
September10.7 °C24.1 °C85.09 mm
October3.9 °C16.8 °C69.6 mm
November-2.8 °C7.7 °C48.51 mm
December-8.8 °C0.3 °C37.34 mm
Annual3 °C14.3 °C931.68 mm

Climate Data for Morrison 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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