Forest City Iowa Climate Data

Monthly Average Climate Data for Forest City Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.9 °F23.8 °F0.98 in.
February11.0 °F28.5 °F0.93 in.
March23.5 °F41.1 °F1.93 in.
April34.9 °F56.5 °F3.68 in.
May47.4 °F69.0 °F4.8 in.
June58.2 °F78.9 °F5.35 in.
July61.5 °F81.8 °F4.36 in.
August58.7 °F79.5 °F3.82 in.
September49.9 °F73.4 °F3.14 in.
October37.3 °F60.2 °F2.28 in.
November25.2 °F43.3 °F1.52 in.
December13.7 °F29.6 °F1.28 in.
Annual35.7 °F55.5 °F34.07 in.

Climate Data for Forest City Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 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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