Thor Iowa Climate Data

Monthly Average Climate Data for Thor Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.2 °F25.5 °F0.86 in.
February12.4 °F29.8 °F1.12 in.
March24.5 °F43.1 °F2.09 in.
April35.7 °F58.2 °F3.76 in.
May48.3 °F69.8 °F5.0 in.
June59.3 °F79.7 °F5.39 in.
July62.6 °F82.7 °F4.11 in.
August59.6 °F80.4 °F4.39 in.
September50.8 °F74.6 °F3.11 in.
October38.2 °F61.4 °F2.46 in.
November25.8 °F44.7 °F1.64 in.
December14.5 °F30.9 °F1.32 in.
Annual36.7 °F56.7 °F35.25 in.

Climate Data for Thor 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