Best year time to visit Glen Carbon

General weather information about Glen Carbon

Average annual temperature is 14.5 °C

Absolute maximum temperature: 37.1 °C

Absolute minimum temperature: -11.6 °C

Number of sunny days: 201 days

Number of rainy days: 159 days

Number of snow days: 5 days

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* Weather data for Glen Carbon United States is based on climate observations for 2026 year

Glen Carbon air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.220.722.528.531.734.637.037.132.930.126.417.7
Average daytime temperature (°C)8.011.212.820.525.829.931.529.627.120.313.99.8
Average temperature (°C)3.45.16.713.719.423.625.824.621.415.38.45.6
Average night temperature (°C)0.20.72.28.214.017.921.220.616.811.24.22.7
Absolute minimum temperature (°C)-11.6-10.5-6.60.96.212.217.413.811.4-1.6-5.2-6.0

Glen Carbon monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.812.013.214.314.814.613.612.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.07.46.710.110.712.511.810.010.37.87.75.5
Precipitation (mm)7463196661631068212663642486
Sunny days151613201820121218172317
Rainy days13111710131019191214714
Snow days311000000000

Glen Carbon - weather forecast by months

Glen Carbon weather in januaryGlen Carbon weather in februaryGlen Carbon weather in marchGlen Carbon weather in aprilGlen Carbon weather in mayGlen Carbon weather in juneGlen Carbon weather in julyGlen Carbon weather in augustGlen Carbon weather in septemberGlen Carbon weather in octoberGlen Carbon weather in novemberGlen Carbon weather in december

Best time to visit Glen Carbon:

The best time to visit Glen Carbon during the most sunny months:

  • June — 12.5(h)
  • July — 11.8(h)

The largest precipitation sum in Glen Carbon is at

  • March — 196(mm)
  • May — 163(mm)
  • August — 126(mm)

    • Weather forecast in the closest to Glen Carbon admin centers

    Weather forecast in the closest towns to Glen Carbon

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    Frequently asked questions

    When is the best time to visit Glen Carbon?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Glen Carbon.
    What is the weather like in Glen Carbon?
    See average temperature, rainfall and daylight hours for Glen Carbon by month in the table above.
    How many sunny days does Glen Carbon have?
    The monthly weather statistics above show sunshine and rainfall patterns for Glen Carbon throughout the year.