Bertram Iowa Climate Data

Monthly Average Climate Data for Bertram Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.1 °F28.9 °F1.23 in.
February15.9 °F33.4 °F1.43 in.
March27.0 °F46.7 °F2.18 in.
April38.1 °F61.3 °F3.86 in.
May49.9 °F72.0 °F4.73 in.
June60.1 °F81.2 °F5.55 in.
July63.5 °F84.3 °F4.54 in.
August61.0 °F82.6 °F4.38 in.
September52.4 °F76.4 °F3.87 in.
October40.5 °F63.4 °F2.98 in.
November28.7 °F47.6 °F2.27 in.
December18.3 °F34.3 °F1.71 in.
Annual39 °F59.3 °F38.73 in.

Climate Data for Bertram Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
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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