Northwood Iowa Climate Data

Monthly Average Climate Data for Northwood Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.5 °F23.3 °F0.99 in.
February10.4 °F27.7 °F1.03 in.
March22.7 °F40.2 °F1.94 in.
April34.7 °F55.7 °F3.74 in.
May47.0 °F68.0 °F4.9 in.
June58.0 °F77.8 °F5.27 in.
July61.3 °F80.9 °F4.62 in.
August58.6 °F78.5 °F4.2 in.
September49.9 °F72.4 °F3.43 in.
October37.3 °F58.8 °F2.58 in.
November25.1 °F42.7 °F1.69 in.
December13.5 °F29.0 °F1.29 in.
Annual35.4 °F54.6 °F35.68 in.

Climate Data for Northwood Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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