Sigourney Iowa Climate Data

Monthly Average Climate Data for Sigourney Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.0 °F30.2 °F1.19 in.
February16.7 °F34.8 °F1.49 in.
March27.5 °F47.9 °F2.27 in.
April38.7 °F61.2 °F3.87 in.
May50.8 °F71.5 °F5.04 in.
June61.1 °F81.2 °F5.47 in.
July64.2 °F84.9 °F4.15 in.
August62.0 °F83.1 °F4.4 in.
September53.0 °F76.5 °F3.66 in.
October40.9 °F63.9 °F2.71 in.
November29.4 °F48.4 °F2.21 in.
December19.1 °F35.6 °F1.56 in.
Annual39.7 °F59.9 °F38.02 in.

Climate Data for Sigourney Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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