Pomeroy Iowa Climate Data

Monthly Average Climate Data for Pomeroy Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.7 °F26.2 °F0.83 in.
February12.8 °F30.5 °F1.02 in.
March24.8 °F44.3 °F1.93 in.
April35.9 °F58.8 °F3.59 in.
May48.5 °F70.0 °F4.72 in.
June59.5 °F80.2 °F5.15 in.
July62.9 °F83.2 °F3.74 in.
August60.1 °F80.7 °F4.31 in.
September51.1 °F75.0 °F2.98 in.
October38.7 °F61.9 °F2.4 in.
November25.9 °F45.2 °F1.52 in.
December14.9 °F31.4 °F1.24 in.
Annual37 °F57.3 °F33.43 in.

Climate Data for Pomeroy 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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