Kelley Iowa Climate Data

Monthly Average Climate Data for Kelley Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.9 °F28.3 °F0.93 in.
February15.0 °F32.8 °F1.15 in.
March26.4 °F45.9 °F2.06 in.
April37.7 °F60.3 °F3.8 in.
May49.9 °F70.9 °F5.19 in.
June60.3 °F80.5 °F5.44 in.
July63.8 °F83.8 °F4.41 in.
August61.2 °F81.6 °F4.54 in.
September52.5 °F76.1 °F3.64 in.
October40.0 °F62.8 °F2.74 in.
November27.8 °F47.3 °F1.87 in.
December17.0 °F33.7 °F1.42 in.
Annual38.5 °F58.7 °F37.19 in.

Climate Data for Kelley 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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