Galesburg Illinois Climate Data

Monthly Average Climate Data for Galesburg Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.4 °F31.0 °F1.76 in.
February17.8 °F35.5 °F1.94 in.
March28.2 °F48.6 °F2.45 in.
April38.8 °F61.6 °F3.86 in.
May51.1 °F72.3 °F5.2 in.
June60.8 °F81.2 °F4.73 in.
July64.1 °F84.2 °F4.02 in.
August61.9 °F82.6 °F3.71 in.
September53.6 °F76.7 °F3.89 in.
October41.8 °F64.1 °F2.89 in.
November30.3 °F49.0 °F2.49 in.
December20.4 °F36.4 °F2.03 in.
Annual40.3 °F60.3 °F38.97 in.

Climate Data for Galesburg Illinois

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness ZoneZone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation