Pontoon Beach Illinois Climate Data

Monthly Average Climate Data for Pontoon Beach Illinois

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5 °C4.2 °C67.06 mm
February-2.9 °C7.2 °C61.72 mm
March1.9 °C12.7 °C87.63 mm
April7.9 °C19.5 °C123.19 mm
May13.8 °C24.6 °C136.14 mm
June18.8 °C29.4 °C117.35 mm
July20.9 °C31.3 °C107.44 mm
August19.8 °C30.6 °C101.09 mm
September15.2 °C27 °C83.57 mm
October8.7 °C20.6 °C82.8 mm
November2.6 °C12.9 °C92.96 mm
December-2.4 °C6.7 °C69.34 mm
Annual8.3 °C18.9 °C1130.29 mm

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