Monroe Iowa Climate Data

Monthly Average Climate Data for Monroe Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.8 °F30.3 °F1.01 in.
February16.6 °F34.9 °F1.33 in.
March27.5 °F47.9 °F2.06 in.
April38.9 °F61.4 °F3.94 in.
May51.0 °F71.3 °F5.02 in.
June61.3 °F81.1 °F5.32 in.
July64.9 °F84.8 °F4.34 in.
August62.4 °F83.1 °F4.33 in.
September53.6 °F76.8 °F3.6 in.
October41.4 °F63.7 °F2.63 in.
November29.3 °F48.5 °F1.92 in.
December18.7 °F35.5 °F1.42 in.
Annual39.9 °F59.9 °F36.92 in.

Climate Data for Monroe 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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation