Springfield Illinois Climate Data

Monthly Average Climate Data for Springfield Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.6 °F35.2 °F2.17 in.
February21.9 °F40.0 °F1.95 in.
March31.1 °F51.6 °F2.77 in.
April41.8 °F64.3 °F3.99 in.
May53.3 °F74.4 °F4.7 in.
June62.5 °F82.9 °F4.66 in.
July65.5 °F86.0 °F3.6 in.
August63.3 °F84.5 °F3.15 in.
September55.1 °F79.3 °F3.22 in.
October43.6 °F66.9 °F3.07 in.
November32.8 °F52.2 °F2.95 in.
December24.0 °F40.3 °F2.24 in.
Annual42.8 °F63.1 °F38.47 in.

Climate Data for Springfield Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 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
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