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Mettawa (IL) Climate by Month

The temperature in Mettawa can vary greatly throughout the year. The temperatures shift from warm to very cold. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Depending on the time of the year, temperatures range from comfortable to very cold in Mettawa. Average daytime temperatures range from a comfortable 28°C in July, the warmest time of the year, to a very cold -1°C during cooler months like January. At night, temperatures typically average around -9°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Mettawa has a relatively rain/snowy climate with high precipitation levels, averaging 1015 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, July receives high rainfall, averaging 116 mm of precipitation, recorded across 11 rainy days. In contrast, the drier season, January brings less snowfall, with 43 mm over 10 snowy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Mettawa. While July receives considerable daily sunshine with up to 10.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.6 hours of sunlight per day.

Monthly hours of sunshine

Data from: Chicago, the United States of America (27 KM, 17 Miles).

Daily hours of sunshine

Data from: Chicago, the United States of America (27 KM, 17 Miles).

The best time of year to visit Mettawa in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Mettawa?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Mettawa?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Mettawa?
    The coldest month is January with an average maximum temperature of -1°C.
  • Which is the wettest month in Mettawa?
    July tops the wettest month list with 116 mm of rainfall.
  • Which is the driest month in Mettawa?
    January is the driest month with 43 mm of precipitation.
  • Which is the sunniest month in Mettawa?
    July is the sunniest month with an average of 319 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Mettawa (IL)

    Sat   Nov 23
    8°C | 2°C
    W 14 km/h
    0.1 mm
    broken clouds and small chance of slight rain

    broken clouds and small chance of slight rain

    Sun   Nov 24
    11°C | 2°C
    SE 14 km/h
    broken clouds and no rain

    broken clouds and no rain

    Mon   Nov 25
    10°C | -1°C
    NW 22 km/h
    overcast and no rain

    overcast and no rain