Centralia Illinois Climate Data

Monthly Average Climate Data for Centralia Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.4 °F38.8 °F3.02 in.
February25.7 °F43.7 °F2.57 in.
March34.5 °F54.1 °F3.7 in.
April44.8 °F66.2 °F4.86 in.
May55.5 °F75.6 °F5.02 in.
June64.3 °F84.6 °F4.87 in.
July67.6 °F87.7 °F4.03 in.
August65.2 °F86.8 °F3.23 in.
September56.9 °F80.5 °F3.4 in.
October45.4 °F69.0 °F3.41 in.
November35.3 °F54.5 °F3.84 in.
December26.9 °F43.1 °F2.99 in.
Annual45.4 °F65.4 °F44.94 in.

Climate Data for Centralia Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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