Rockbridge Illinois Climate Data

Monthly Average Climate Data for Rockbridge Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.3 °F36.7 °F2.28 in.
February23.6 °F42.1 °F2.08 in.
March32.7 °F53.1 °F3.13 in.
April43.2 °F65.4 °F4.42 in.
May54.5 °F74.9 °F4.95 in.
June63.5 °F83.6 °F4.34 in.
July66.7 °F86.6 °F3.65 in.
August64.6 °F85.7 °F3.37 in.
September55.9 °F79.7 °F3.26 in.
October44.7 °F67.7 °F3.25 in.
November34.1 °F53.4 °F3.32 in.
December25.2 °F41.6 °F2.38 in.
Annual44.1 °F64.2 °F40.43 in.

Climate Data for Rockbridge Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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