nomadseason

December Weather in Bismarck, United States

Last updated: June 24, 2025

In Bismarck, United States, the average temperature in December hovers around -6°C (22°F), with a range that can dip as low as -31°C (-24°F) and peak at a mild 16°C (60°F). Expect about 22 mm (0.9 in) of precipitation spread over approximately 4 days, accompanied by an average humidity level of 84%.

December Temperature in Bismarck

In December in Bismarck, the average temperature is -6°C (22°F) with maximums that can reach 16°C (60°F) and minimums that can drop as low as -31°C (-24°F). Travelers should prepare for a wide range of temperatures and be ready for cold weather conditions.

December Weather in Bismarck: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Bismarck, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bismarck, December typically has an average temperature of -6°C (22°F), with highs reaching up to 16°C (60°F) and lows dropping to around -31°C (-24°F).
JanFebMarAprMayJunJulAugSepOctNovDec151330405669737061443122
Data source: Temperature data for Bismarck generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Bismarck

In Bismarck in December, the precipitation amount is 22 mm (0.9 in) over a duration of 4 days.

December Precipitation Trends in Bismarck

The chart displays monthly precipitation patterns in Bismarck, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Bismarck, December typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec131626264764655958561522
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Bismarck

In Bismarck in December humidity is 84%. With an average temperature of -6°C (22°F), this humidity feels like an unpleasant chill that seeps into your bones, making travel feel much more uncomfortable and harsh than the temperature alone suggests.

December Average Humidity in Bismarck

This chart illustrates the average monthly humidity levels in Bismarck, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Bismarck is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%88%78%75%76%79%78%78%69%71%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bismarck

In Bismarck in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Bismarck, you can visit Hourly UV Index in Bismarck.

Maximum UV Index Levels in Bismarck for December

The chart shows the monthly maximum UV Index (UVI) for Bismarck in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Bismarck typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2459910997532
Data source: Bismarck December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Bismarck Compares to Other Months

Weather in Bismarck varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bismarck, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bismarck, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)12 mm (0.5 inches)84%low
February Weather-11°C (13°F)16 mm (0.6 inches)88%moderate
March Weather-1°C (30°F)26 mm (1.0 inches)78%moderate
April Weather4°C (40°F)26 mm (1.0 inches)75%very high
May Weather13°C (56°F)47 mm (1.9 inches)76%very high
June Weather21°C (69°F)64 mm (2.5 inches)79%very high
July Weather23°C (74°F)65 mm (2.6 inches)78%very high
August Weather21°C (70°F)59 mm (2.3 inches)78%very high
September Weather16°C (61°F)58 mm (2.3 inches)69%high
October Weather7°C (44°F)56 mm (2.2 inches)71%moderate
November Weather-1°C (31°F)15 mm (0.6 inches)82%moderate
December Weather-6°C (22°F)22 mm (0.9 inches)84%low

Compare Bismarck's Climate with Cities Worldwide