Rockford Iowa Climate Data

Monthly Average Climate Data for Rockford Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.2 °F25.0 °F0.99 in.
February12.3 °F29.5 °F1.12 in.
March24.3 °F42.2 °F1.93 in.
April35.9 °F57.8 °F3.91 in.
May48.3 °F69.9 °F5.21 in.
June58.9 °F79.6 °F5.91 in.
July62.2 °F82.7 °F4.49 in.
August59.5 °F80.5 °F4.24 in.
September50.9 °F74.5 °F3.46 in.
October38.6 °F61.0 °F2.71 in.
November26.4 °F44.2 °F1.75 in.
December15.1 °F30.6 °F1.39 in.
Annual36.7 °F56.5 °F37.11 in.

Climate Data for Rockford Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com