Rowan Iowa Climate Data

Monthly Average Climate Data for Rowan Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.9 °F24.9 °F0.85 in.
February11.7 °F29.6 °F1.0 in.
March23.7 °F42.4 °F2.03 in.
April35.0 °F57.4 °F3.84 in.
May48.1 °F69.4 °F5.06 in.
June58.7 °F79.6 °F5.7 in.
July61.8 °F82.3 °F4.42 in.
August58.7 °F80.1 °F4.2 in.
September49.7 °F74.4 °F3.21 in.
October37.4 °F60.9 °F2.43 in.
November25.5 °F44.3 °F1.72 in.
December14.4 °F30.6 °F1.31 in.
Annual36.1 °F56.3 °F35.77 in.

Climate Data for Rowan Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
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