Guernsey Iowa Climate Data

Monthly Average Climate Data for Guernsey Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.7 °F28.4 °F1.12 in.
February15.2 °F33.2 °F1.38 in.
March26.3 °F46.3 °F2.14 in.
April37.5 °F59.9 °F3.68 in.
May50.1 °F71.3 °F4.83 in.
June61.0 °F81.2 °F5.39 in.
July63.9 °F84.6 °F4.3 in.
August61.3 °F82.7 °F4.36 in.
September52.3 °F75.8 °F3.57 in.
October40.2 °F62.7 °F2.87 in.
November28.2 °F47.0 °F2.11 in.
December17.9 °F34.1 °F1.54 in.
Annual38.8 °F58.9 °F37.29 in.

Climate Data for Guernsey Iowa

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