Mandan (ND) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mandan.
Climate overview of Mandan
Mandan, North Dakota, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in July, while winters cool to -4°C (25°F) in January.
Mandan sees a moderate amount of rain/snowfall, totalling around 525 mm (21 in) per year. It experiences a distinct dry season from November to March, creating some seasonal variation. The sunniest month is July, with 11.8 hours of sunshine per day on average.
Mandan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mandan — and find the best time to visit.
Monthly Temperature in Mandan
Depending on the time of the year, temperatures range from comfortable to very cold in Mandan. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a very cold -4°C (25°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -15°C (5°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mandan
Generally, Mandan has a moderate amount of precipitation, averaging 525 mm (21 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives moderate rainfall, averaging 97 mm (3.8 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month January brings less snowfall, with 11 mm (0.4 in) over 6 snowy days. For more details, please visit our Mandan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Mandan
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.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Mandan by Month
The relative humidity is high throughout the year in Mandan.
The city experiences its highest humidity in December, reaching 74%. In May, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mandan
Rainfall during this time ranges from 42 mm (1.7 in) in October to 47 mm (1.9 in) in September. This means you can expect a mix of sunny days and occasional showers. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Mandan
What is the best time to visit Mandan?
June, July, August and September typically offer the most optimal weather in Mandan. In contrast, January, February and December tend to have less optimal conditions. Mandan has a distinct dry season from November to March.
What temperatures can I expect in Mandan?
Daytime highs range from -4°C (25°F) in January to 29°C (84°F) in July. Nighttime lows range from -15°C (5°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Mandan get?
Annual rainfall is around 525 mm (21 in). June is the wettest month with 97 mm (3.8 in), while January is the driest with 11 mm (0.4 in).
How sunny is Mandan?
Mandan receives around 2,732 hours of sunshine per year. July is the sunniest month with 354 hours, while November is the cloudiest with just 122 hours. Overall, Mandan enjoys abundant sunshine.
Mandan 3-Day Forecast
Mandan (ND) 3-Day Forecast
Mandan on the map
Mandan is highlighted — select any city to see its climate.
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