Randolph Iowa Climate Data

Monthly Average Climate Data for Randolph Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.1 °F33.2 °F0.81 in.
February17.1 °F38.4 °F1.12 in.
March28.2 °F51.4 °F1.79 in.
April38.7 °F63.6 °F3.41 in.
May51.4 °F73.7 °F5.54 in.
June62.0 °F83.1 °F5.25 in.
July65.7 °F86.5 °F3.96 in.
August62.7 °F85.0 °F3.51 in.
September53.2 °F78.7 °F3.21 in.
October40.7 °F66.5 °F2.83 in.
November28.0 °F50.5 °F1.6 in.
December18.2 °F37.9 °F1.29 in.
Annual39.9 °F62.4 °F34.32 in.

Climate Data for Randolph Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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