Exeter Illinois Climate Data

Monthly Average Climate Data for Exeter Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.5 °C2 °C55.63 mm
February-5.6 °C4.9 °C49.53 mm
March-0.5 °C11.2 °C70.61 mm
April5.3 °C18.3 °C102.87 mm
May11.6 °C23.7 °C121.16 mm
June16.8 °C28.6 °C127.25 mm
July18.8 °C30.4 °C101.85 mm
August17.4 °C29.8 °C90.93 mm
September12.8 °C26.6 °C85.6 mm
October6.3 °C19.7 °C78.23 mm
November0.4 °C11.6 °C75.44 mm
December-4.5 °C4.8 °C59.94 mm
Annual5.9 °C17.6 °C1019.04 mm

Climate Data for Exeter 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 : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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