Shellsburg Iowa Climate Data

Monthly Average Climate Data for Shellsburg Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.0 °F28.0 °F1.16 in.
February14.9 °F32.6 °F1.3 in.
March26.2 °F45.8 °F2.1 in.
April37.3 °F60.4 °F3.79 in.
May49.2 °F71.4 °F4.75 in.
June59.6 °F80.8 °F5.59 in.
July62.9 °F83.9 °F4.41 in.
August60.3 °F82.1 °F4.36 in.
September51.7 °F76.0 °F3.74 in.
October39.9 °F62.9 °F2.94 in.
November28.0 °F46.9 °F2.17 in.
December17.5 °F33.7 °F1.62 in.
Annual38.2 °F58.7 °F37.93 in.

Climate Data for Shellsburg 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 5a : -20°F to -15°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
2024 plantmaps.com