January weather forecast
Bismarck, ND

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

Weather in January

January signals the arrival of winter in full force in Bismarck, North Dakota. This month is characterized by its low temperatures, relatively high humidity, and voluminous amounts of snow. The average high temperature and low temperature run from 20.8°F (-6.2°C) to 6.1°F (-14.4°C), accompanied by a significant 3.58" (91mm) of snowfall. Moreover, the strength of winter can fluctuate heavily in this month, with some days experiencing relatively mild conditions and others being subject to more extreme patterns. Additionally, daylight hours are shorter and the sunlight is less powerful, contributing to the cold climate.

Temperature

Bismarck's January weather, with an average high temperature of 20.8°F (-6.2°C) and an average low temperature of 6.1°F (-14.4°C), tends to be the coldest of the year.

Humidity

The most humid month is January, with an average relative humidity of 89%.

Rainfall

January is the month with the least rainfall in Bismarck. Rain falls for 4 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

Months with snowfall in Bismarck are January through May, October through December. In Bismarck, in January, during 14.8 snowfall days, 3.58" (91mm) of snow is typically accumulated. Throughout the year, there are 73.7 snowfall days, and 23.11" (587mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 3min.
On the first day of January, sunrise is at 8:28 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:44 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.8h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Bismarck. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, an average UV index of 1 transforms into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What month is the coldest in Bismarck?

The coldest month is January, with an average high-temperature of 20.8°F (-6.2°C) and an average low-temperature of 6.1°F (-14.4°C).

How cold is it in Bismarck in January?

The high-temperature, in January, in Bismarck, is 20.8°F (-6.2°C), while the low-temperature averages to 6.1°F (-14.4°C).

What is the most humid month in Bismarck?

January is the most humid month, with an average relative humidity of 89%.

What is the average humidity in January in Bismarck?

In January, the average relative humidity in Bismarck is 89%.

What is the driest month in Bismarck?

January is the month with the least rainfall. Rain falls for 4 days and accumulates 0.59" (15mm) of precipitation.

How much does it rain in Bismarck in January?

In Bismarck, in January, it is raining for 4 days, with typically 0.59" (15mm) of accumulated precipitation.

How much does it snow in Bismarck in January?

In January, in Bismarck, North Dakota, it is snowing for 14.8 days. Throughout January, 3.58" (91mm) of snow is accumulated.

How many hours of daylight does Bismarck have in January?

The average day length in January in Bismarck is 9h and 3min.

When are sunrise and sunset in January in Bismarck?

In January, on the first day of the month, sunrise is at 8:28 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:44 pm CST.

What is the month with the least sunshine in Bismarck?

With an average of 3.8h of sunshine, January has the least sunshine of the year in Bismarck, North Dakota.

How many hours of sunshine does Bismarck have in January?

The average sunshine duration in January is 3.8h.

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

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

How high is the UV index in January in Bismarck?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Bismarck, ND

Average temperature in January - Bismarck, ND
  • Average high temperature in January: 20.8°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 January: 6.1°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 January
Bismarck, ND

Average pressure in January - Bismarck, ND
  • Average pressure in January: 30.15"Hg

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

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Average wind speed in January
Bismarck, ND

Average wind speed in January - Bismarck, ND
  • Average wind speed in January: 9.9mph

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 January
Bismarck, ND

Average humidity in January - Bismarck, ND
  • Average humidity in January: 89%

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 January
Bismarck, ND

Average rainfall in January - Bismarck, ND
  • Average rainfall in January: 0.59"

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 January
Bismarck, ND

Average rainfall days in January - Bismarck, ND
  • Average rainfall days in January: 4 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 January
Bismarck, ND

Average snowfall in January - Bismarck, ND
  • Average snowfall in January: 3.58"

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

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Average snowfall days in January
Bismarck, ND

Average snowfall days in January - Bismarck, ND
  • Average snowfall days in January: 14.8 days

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

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

Average daylight in January / Average sunshine in January - Bismarck, ND
  • Average daylight in January: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in January
Bismarck, ND

Average sunshine days in January - Bismarck, ND
  • Average sunshine days in January: 13.8 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 January
Bismarck, ND

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

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

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Average cloud cover in January
Bismarck, ND

Average cloud cover in January - Bismarck, ND
  • Average cloud cover in January: 59

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

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Average visibility in January
Bismarck, ND

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

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

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Bismarck, North Dakota, USA

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