Hiawatha Iowa Climate Data

Monthly Average Climate Data for Hiawatha Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.7 °F28.4 °F1.21 in.
February15.4 °F32.9 °F1.39 in.
March26.5 °F46.2 °F2.14 in.
April37.6 °F60.9 °F3.87 in.
May49.4 °F71.7 °F4.78 in.
June59.8 °F80.9 °F5.6 in.
July63.1 °F83.9 °F4.45 in.
August60.6 °F82.2 °F4.4 in.
September52.1 °F76.0 °F3.95 in.
October40.2 °F63.0 °F2.97 in.
November28.3 °F47.0 °F2.3 in.
December17.8 °F33.8 °F1.71 in.
Annual38.5 °F58.9 °F38.77 in.

Climate Data for Hiawatha 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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