Glenwood Iowa Climate Data

Monthly Average Climate Data for Glenwood Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.4 °F32.5 °F0.75 in.
February17.3 °F37.6 °F0.98 in.
March28.2 °F50.7 °F1.81 in.
April38.9 °F62.9 °F3.54 in.
May51.0 °F73.1 °F5.42 in.
June61.6 °F82.9 °F5.27 in.
July65.8 °F86.1 °F3.82 in.
August63.1 °F84.7 °F3.71 in.
September53.5 °F78.2 °F3.09 in.
October41.0 °F65.5 °F2.52 in.
November28.2 °F49.6 °F1.5 in.
December18.3 °F37.1 °F1.13 in.
Annual40 °F61.7 °F33.54 in.

Climate Data for Glenwood Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°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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