Coulter Iowa Climate Data

Monthly Average Climate Data for Coulter Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.6 °F24.9 °F0.9 in.
February11.7 °F29.6 °F1.06 in.
March23.7 °F42.3 °F2.05 in.
April35.1 °F57.3 °F3.88 in.
May47.8 °F69.2 °F5.11 in.
June58.4 °F79.2 °F5.85 in.
July61.4 °F82.1 °F4.5 in.
August58.5 °F80.0 °F4.24 in.
September49.6 °F74.2 °F3.29 in.
October37.5 °F60.7 °F2.53 in.
November25.6 °F44.2 °F1.75 in.
December14.6 °F30.6 °F1.39 in.
Annual36 °F56.2 °F36.55 in.

Climate Data for Coulter 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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