Gray Iowa Climate Data

Monthly Average Climate Data for Gray Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.7 °F28.5 °F0.8 in.
February14.5 °F33.0 °F1.03 in.
March25.5 °F46.5 °F1.84 in.
April36.2 °F59.9 °F3.55 in.
May48.8 °F70.6 °F4.93 in.
June59.4 °F80.6 °F5.13 in.
July63.1 °F83.6 °F3.96 in.
August60.3 °F81.5 °F4.17 in.
September51.2 °F75.6 °F3.34 in.
October39.3 °F62.9 °F2.68 in.
November26.4 °F46.5 °F1.51 in.
December16.5 °F33.5 °F1.25 in.
Annual37.7 °F58.6 °F34.19 in.

Climate Data for Gray Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 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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