December weather forecast and climate
Bismarck, ND

The historical building of the State Capitol in Bismarck, North Dakota
The historical building of the State Capitol in Bismarck, North Dakota

Weather in December

The first month of the winter, December, is also a subzero cold month in Bismarck, North Dakota, with average temperature fluctuating between 23.2°F (-4.9°C) and 11.3°F (-11.5°C).

Temperature

In Bismarck, the average high-temperature in December declines considerably, from a cold 38.7°F (3.7°C) in November, to a subzero cold 23.2°F (-4.9°C). The average low-temperature, in December, is 11.3°F (-11.5°C).

Humidity

In December, the average relative humidity is 86%.

Rainfall

In December, in Bismarck, the rain falls for 3.6 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. In Bismarck, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Bismarck. In December, it is snowing for 15.7 days. Throughout December, 3.98" (101mm) of snow is accumulated. In Bismarck, during the entire year, snow falls for 73.7 days, and aggregates up to 23.11" (587mm) of snow.

Daylight

December has the shortest days of the year in Bismarck, with an average of 8.6h of daylight.

Sunshine

The average sunshine in December is 4h.

UV index

Months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Bismarck?

In Bismarck, North Dakota, in December, the average high-temperature is 23.2°F (-4.9°C), and the average low-temperature is 11.3°F (-11.5°C).

What is the average humidity in December in Bismarck?

In Bismarck, the average relative humidity in December is 86%.

How much does it rain in Bismarck in December?

In Bismarck, in December, during 3.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

How many days does it snow in December in Bismarck?

In Bismarck, during December, snow falls for 15.7 days and regularly aggregates up to 3.98" (101mm) of snow.

What is the month with the shortest days in Bismarck?

With an average of 8.6h of daylight, December has the shortest days of the year in Bismarck.

How many hours of daylight does Bismarck have in December?

The average length of the day in December in Bismarck, North Dakota, is 8.6h.

How long on average sun shines in December in Bismarck?

The average sunshine in December in Bismarck is 4h.

What is the month with the lowest UV index in Bismarck?

Months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Bismarck?

In Bismarck, North Dakota, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.

Average temperature in December
Bismarck, ND

Average temperature in December - Bismarck, ND
  • Average high temperature in December: 23.2°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in December: 11.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

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Average pressure in December
Bismarck, ND

Average pressure in December - Bismarck, ND
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is February (30.17").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in December
Bismarck, ND

Average wind speed in December - Bismarck, ND
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in December
Bismarck, ND

Average humidity in December - Bismarck, ND
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in December
Bismarck, ND

Average rainfall in December - Bismarck, ND
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in December
Bismarck, ND

Average rainfall days in December - Bismarck, ND
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in December
Bismarck, ND

Average snowfall in December - Bismarck, ND
  • Average snowfall in December: 3.98"

The month with the highest snowfall is February (4.33").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Bismarck, ND

Average snowfall days in December - Bismarck, ND
  • Average snowfall days in December: 15.7 days

The month with the highest number of snowfall days is December (15.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Bismarck, ND

Average daylight in December / Average sunshine in December - Bismarck, ND
  • Average daylight in December: 8.6h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in December: 4h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 3.8h).

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Average sunshine days in December
Bismarck, ND

Average sunshine days in December - Bismarck, ND
  • Average sunshine days in December: 14.1 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).

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Average UV index in December
Bismarck, ND

Average UV index in December - Bismarck, ND
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in December
Bismarck, ND

Average cloud cover in December - Bismarck, ND
  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 60).
Months with the least cloud cover are July and August (Cloud cover 21).

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Average visibility in December
Bismarck, ND

Average visibility in December - Bismarck, ND
  • Average visibility in December: 5mi

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January, February, March and December (5mi).

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