Gorham Illinois Climate Data

Monthly Average Climate Data for Gorham Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.4 °C5.3 °C75.95 mm
February-2.2 °C8.1 °C76.45 mm
March2 °C13.8 °C108.2 mm
April7.8 °C20 °C133.35 mm
May13.5 °C25.1 °C131.83 mm
June18.6 °C30 °C116.08 mm
July20.5 °C31.7 °C92.71 mm
August19.1 °C31 °C76.2 mm
September14.3 °C28 °C76.45 mm
October7.7 °C21.7 °C88.14 mm
November2.4 °C13.8 °C107.19 mm
December-2.2 °C7.4 °C85.85 mm
Annual8.1 °C19.7 °C1168.4 mm

Climate Data for Gorham 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 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com