New Hartford Iowa Climate Data

Monthly Average Climate Data for New Hartford Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.2 °F26.2 °F0.97 in.
February13.3 °F30.7 °F1.12 in.
March24.6 °F44.0 °F2.02 in.
April36.5 °F58.6 °F3.96 in.
May49.2 °F70.3 °F4.9 in.
June60.0 °F80.1 °F5.79 in.
July63.1 °F83.0 °F4.55 in.
August60.3 °F81.0 °F4.16 in.
September51.5 °F75.1 °F3.42 in.
October38.9 °F61.7 °F2.77 in.
November26.5 °F45.5 °F1.87 in.
December15.8 °F32.3 °F1.51 in.
Annual37.4 °F57.4 °F37.04 in.

Climate Data for New Hartford Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 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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