Pontoon Beach Illinois Climate Data

Monthly Average Climate Data for Pontoon Beach Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.0 °F39.6 °F2.64 in.
February26.7 °F44.9 °F2.43 in.
March35.4 °F54.9 °F3.45 in.
April46.2 °F67.1 °F4.85 in.
May56.9 °F76.2 °F5.36 in.
June65.9 °F85.0 °F4.62 in.
July69.6 °F88.3 °F4.23 in.
August67.7 °F87.1 °F3.98 in.
September59.3 °F80.6 °F3.29 in.
October47.6 °F69.1 °F3.26 in.
November36.7 °F55.3 °F3.66 in.
December27.7 °F44.1 °F2.73 in.
Annual46.9 °F66 °F44.5 in.

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 : 0°F to 5°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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