ClimateForecastNovemberDecember >>

Sullivan (MO) Climate by Month

The climate in Sullivan is marked by big temperature swings throughout the year. Temperatures range from very warm during the warmest months to cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In Sullivan, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C in July to a chilly 6°C in January. Nighttime temperatures can drop, with averages reaching -6°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Sullivan experiences significant rain/snowfall throughout the year, averaging 1125 mm of precipitation annually. The seasons in Sullivan, bring significant changes in precipitation. The wettest month, May, receives high rainfall, with an average of 131 mm of precipitation. This rainfall is distributed across 14 rainy days. In contrast, the driest month, January, experiences much less snow/rainfall, totaling 49 mm over 6 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

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

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

During the months of April, May and October 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:
  • Which is the warmest month in Sullivan?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Sullivan?
    The coldest month is January with an average maximum temperature of 6°C.
  • Which is the wettest month in Sullivan?
    May tops the wettest month list with 131 mm of rainfall.
  • Which is the driest month in Sullivan?
    January is the driest month with 49 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 Sullivan (MO)

    Wed   Nov 20
    11°C | 4°C
    W 29 km/h
    almost clear and no rain

    almost clear and no rain

    Thu   Nov 21
    6°C | 0°C
    NW 32 km/h
    almost clear and no rain

    almost clear and no rain

    Fri   Nov 22
    8°C | -1°C
    NW 18 km/h
    broken clouds and no rain

    broken clouds and no rain