Charlotte Iowa Climate Data

Monthly Average Climate Data for Charlotte Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.3 °F29.1 °F1.43 in.
February15.9 °F33.6 °F1.67 in.
March26.8 °F46.4 °F2.38 in.
April37.8 °F59.9 °F3.74 in.
May49.6 °F71.5 °F4.57 in.
June59.7 °F80.7 °F5.05 in.
July63.1 °F83.7 °F4.3 in.
August60.9 °F81.8 °F4.16 in.
September52.4 °F75.9 °F3.65 in.
October40.8 °F63.0 °F2.91 in.
November29.1 °F47.7 °F2.22 in.
December18.7 °F34.7 °F1.85 in.
Annual38.9 °F59 °F37.93 in.

Climate Data for Charlotte Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation