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Mandan (ND) Climate by Month

The temperature in Mandan can vary greatly throughout the year. The temperatures shift from warm to very cold. It receives mid-range precipitation levels. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Depending on the time of the year, temperatures range from comfortable to very cold in Mandan. Average daytime temperatures range from a comfortable 29°C in July, the warmest time of the year, to a very cold -4°C during cooler months like January. At night, temperatures typically average around -15°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Generally, Mandan has a moderate amount of precipitation, averaging 525 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, June receives moderate rainfall, averaging 97 mm of precipitation, recorded across 13 rainy days. In contrast, the drier season, January brings less snowfall, with 11 mm over 6 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 Mandan. While July receives considerable daily sunshine with up to 11.8 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.1 hours of sunlight per day.

Monthly hours of sunshine

Data from: Bismarck, the United States of America (8 KM, 5 Miles).

Daily hours of sunshine

Data from: Bismarck, the United States of America (8 KM, 5 Miles).

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

During the months of 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:
  • Does Mandan have a dry season?
    Yes, the months of January, February and November are very dry.
  • When is winter in Mandan?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Mandan?
    July has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Mandan?
    The coldest month is January with an average maximum temperature of -4°C.
  • Which is the wettest month in Mandan?
    June tops the wettest month list with 97 mm of rainfall.
  • Which is the driest month in Mandan?
    January is the driest month with 11 mm of precipitation.
  • Which is the sunniest month in Mandan?
    July is the sunniest month with an average of 354 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 Mandan (ND)

    Fri   Nov 22
    2°C | -9°C
    N 18 km/h
    broken clouds and no rain

    broken clouds and no rain

    Sat   Nov 23
    -2°C | -8°C
    E 22 km/h
    broken clouds and no rain

    broken clouds and no rain

    Sun   Nov 24
    -4°C | -9°C
    NW 29 km/h
    2.2 mm
    overcast and  chance of slight snow

    overcast and chance of slight snow