Humboldt Iowa Climate Data

Monthly Average Climate Data for Humboldt Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.5 °F25.8 °F0.88 in.
February12.4 °F29.9 °F1.14 in.
March24.6 °F43.2 °F2.09 in.
April35.9 °F58.1 °F3.71 in.
May48.3 °F69.7 °F4.89 in.
June59.3 °F79.6 °F5.18 in.
July62.9 °F82.6 °F3.9 in.
August59.9 °F80.3 °F4.39 in.
September51.0 °F74.3 °F2.96 in.
October38.5 °F61.4 °F2.4 in.
November26.0 °F44.8 °F1.6 in.
December14.7 °F31.1 °F1.34 in.
Annual36.8 °F56.7 °F34.48 in.

Climate Data for Humboldt Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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