Fayetteville Illinois Climate Data

Monthly Average Climate Data for Fayetteville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.8 °F40.2 °F2.72 in.
February26.0 °F45.5 °F2.44 in.
March34.8 °F55.8 °F3.47 in.
April45.3 °F67.5 °F5.03 in.
May56.0 °F76.7 °F5.0 in.
June65.0 °F85.6 °F4.8 in.
July68.7 °F88.9 °F4.14 in.
August66.5 °F87.8 °F3.36 in.
September58.0 °F81.3 °F3.23 in.
October46.1 °F69.9 °F3.06 in.
November35.5 °F55.6 °F3.8 in.
December26.9 °F44.5 °F2.95 in.
Annual46 °F66.6 °F44 in.

Climate Data for Fayetteville Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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