Boone Iowa Climate Data

Monthly Average Climate Data for Boone Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.7 °F27.9 °F1.0 in.
February14.9 °F32.6 °F1.23 in.
March26.3 °F45.7 °F2.08 in.
April37.5 °F60.2 °F3.89 in.
May49.9 °F71.0 °F5.17 in.
June60.3 °F80.5 °F5.35 in.
July63.7 °F83.7 °F4.62 in.
August61.2 °F81.4 °F4.47 in.
September52.4 °F76.1 °F3.25 in.
October40.0 °F63.0 °F2.78 in.
November27.7 °F46.9 °F1.86 in.
December16.9 °F33.3 °F1.43 in.
Annual38.5 °F58.5 °F37.13 in.

Climate Data for Boone 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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