January weather forecast
Mandan, ND

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Scenic fields and vast spaces laden with green trees and shrubs in this place near the Mandan Community of North Dakota
Scenic fields and vast spaces laden with green trees and shrubs in this place near the Mandan Community of North Dakota

Weather in January

In the city of Mandan, North Dakota, January heralds the onset of some severe winter conditions. This month is characterized by relatively high humidity, reaching up to 89%. Snowflakes are a frequent sight with an average snowfall of 2.56" (65mm) over about 11 days. However, January is not all about freezing and snows; it also brings reduced daylight hours with nine hours on average, contributing to the overall chilliness. Be cautious of the gusty winds which may exacerbate cold weather conditions.

Temperature

In Mandan, the lowest average temperatures are observed in January, with a high of 20.7°F (-6.3°C) and a low of 6.3°F (-14.3°C).

Humidity

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

Rainfall

The month with the least rainfall is January, when the rain falls for 3 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In January, it is snowing for 11.4 days. Throughout January, 2.56" (65mm) of snow is accumulated. In Mandan, during the entire year, snow falls for 58.6 days and aggregates up to 18.27" (464mm) of snow.

Daylight

In January, the average length of the day is 9h and 2min.
On the first day of the month, sunrise is at 8:28 am and sunset at 5:05 pm. On the last day of January, sunrise is at 8:09 am and sunset at 5:44 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.9h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January stands out as Mandan's coldest month, with temperatures ranging between an average high of 20.7°F (-6.3°C) and a low of 6.3°F (-14.3°C).

How cold is January?

Mandan in January has an average high-temperature of 20.7°F (-6.3°C) and an average low-temperature of 6.3°F (-14.3°C).

What is the most humid month?

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

What is the average humidity in January in Mandan?

In Mandan, North Dakota, the average relative humidity in January is 89%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in January?

In January, in Mandan, the rain falls for 3 days. Throughout January, 0.43" (11mm) of precipitation is accumulated.

How much does it snow in Mandan in January?

In Mandan, North Dakota, in January, during 11.4 snowfall days, 2.56" (65mm) of snow is typically accumulated.

What is the average length of the day in January?

In Mandan, the average day length in January is 9h and 2min.

What time are sunrise and sunset in January?

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 8:09 am and sunset at 5:44 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.9h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 3.9h.

How high is the UV index in January?

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
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
Mandan, ND

Average temperature in January - Mandan, ND
  • Average high temperature in January: 20.7°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in January: 6.3°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 (6.3°F).

Average pressure in January
Mandan, ND

Average pressure in January - Mandan, 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).

Average wind speed in January
Mandan, ND

Average wind speed in January - Mandan, ND
  • Average wind speed in January: 10.2mph

The windiest months (with the highest average wind speed) are April and October (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in January
Mandan, ND

Average humidity in January - Mandan, 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%).

Average rainfall in January
Mandan, ND

Average rainfall in January - Mandan, ND
  • Average rainfall in January: 0.43"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in January
Mandan, ND

Average rainfall days in January - Mandan, ND
  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in January
Mandan, ND

Average snowfall in January - Mandan, ND
  • Average snowfall in January: 2.56"

The month with the highest snowfall is December (3.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Mandan, ND

Average snowfall days in January - Mandan, ND
  • Average snowfall days in January: 11.4 days

The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Mandan, 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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in January
Mandan, ND

Average sunshine days in January - Mandan, ND
  • Average sunshine days in January: 18.1 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in January
Mandan, ND

Average UV index in January - Mandan, ND
  • Average UV index in January: 2

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

Average cloud cover in January
Mandan, ND

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

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

Average visibility in January
Mandan, ND

Average visibility in January - Mandan, 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).

Mandan, North Dakota, USA

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