Holstein Iowa Climate Data

Monthly Average Climate Data for Holstein Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.4 °F26.9 °F0.81 in.
February13.6 °F31.6 °F0.98 in.
March25.2 °F45.3 °F1.83 in.
April36.5 °F59.1 °F3.48 in.
May49.0 °F70.3 °F4.45 in.
June60.0 °F80.1 °F5.16 in.
July63.6 °F82.9 °F3.61 in.
August60.7 °F80.8 °F4.28 in.
September52.0 °F75.0 °F2.97 in.
October39.4 °F61.8 °F2.3 in.
November26.2 °F45.5 °F1.44 in.
December15.5 °F31.9 °F1.12 in.
Annual37.6 °F57.6 °F32.43 in.

Climate Data for Holstein 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 ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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