Rome Iowa Climate Data

Monthly Average Climate Data for Rome Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.7 °F32.3 °F1.43 in.
February19.5 °F37.0 °F1.72 in.
March29.9 °F49.7 °F2.42 in.
April40.9 °F63.2 °F3.7 in.
May52.5 °F73.4 °F5.17 in.
June62.1 °F82.6 °F5.0 in.
July66.0 °F86.2 °F4.14 in.
August63.7 °F84.7 °F3.9 in.
September55.0 °F78.2 °F3.58 in.
October43.5 °F65.2 °F2.91 in.
November32.0 °F50.1 °F2.22 in.
December21.6 °F37.4 °F1.73 in.
Annual41.9 °F61.7 °F37.92 in.

Climate Data for Rome 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation