Fairmont City Illinois Climate Data

Monthly Average Climate Data for Fairmont City Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.5 °F40.1 °F2.7 in.
February27.0 °F45.5 °F2.42 in.
March35.7 °F55.5 °F3.52 in.
April46.5 °F67.6 °F4.83 in.
May57.1 °F76.6 °F5.3 in.
June66.1 °F85.5 °F4.89 in.
July69.8 °F89.0 °F4.39 in.
August67.9 °F87.6 °F3.93 in.
September59.4 °F81.0 °F3.38 in.
October47.8 °F69.7 °F3.27 in.
November36.9 °F55.7 °F3.68 in.
December27.9 °F44.5 °F2.8 in.
Annual47.1 °F66.5 °F45.11 in.

Climate Data for Fairmont City Illinois

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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