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Vandalia (IL) Climate by Month

The temperature in Vandalia can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. 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

Visitors to Vandalia can expect significant temperature changes throughout the year. Average daytime temperatures range from a very warm 31°C in July, the warmest time of the year, to a chilly 3°C during cooler months like January. At night, temperatures typically average around -6°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Vandalia is known for its substantial rain/snowfall, with annual precipitation reaching 1236 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, June receives heavy rainfall, averaging 163 mm of precipitation, recorded across 12 rainy days. In contrast, the drier season, January brings less snow/rainfall, with 59 mm over 8 snowy/rainy days.

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

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

Other facts from our historical weather data:
  • Which is the warmest month in Vandalia?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Vandalia?
    The coldest month is January with an average maximum temperature of 3°C.
  • Which is the wettest month in Vandalia?
    June tops the wettest month list with 163 mm of rainfall.
  • Which is the driest month in Vandalia?
    January is the driest month with 59 mm of precipitation.

  • 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 Vandalia (IL)

    Sat   Nov 23
    8°C | 2°C
    SW 7 km/h
    broken clouds and no rain

    broken clouds and no rain

    Sun   Nov 24
    16°C | 3°C
    S 22 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Mon   Nov 25
    14°C | 1°C
    NW 22 km/h
    1.7 mm
    broken clouds and slight rain

    broken clouds and slight rain