Montezuma Iowa Climate Data

Monthly Average Climate Data for Montezuma Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.2 °F28.6 °F1.08 in.
February15.8 °F33.4 °F1.32 in.
March26.7 °F46.5 °F2.13 in.
April37.4 °F59.9 °F3.71 in.
May50.1 °F71.1 °F4.82 in.
June60.7 °F80.7 °F5.48 in.
July64.6 °F84.2 °F4.44 in.
August61.3 °F82.3 °F4.39 in.
September52.4 °F75.9 °F3.51 in.
October40.9 °F62.8 °F2.84 in.
November28.4 °F47.1 °F2.19 in.
December18.4 °F34.2 °F1.5 in.
Annual39.1 °F58.9 °F37.41 in.

Climate Data for Montezuma 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 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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