January weather forecast and climate
Rolla, ND

Weather in January

January, like December, is another subzero cold winter month in Rolla, North Dakota, with average temperature ranging between min 0.5°F (-17.5°C) and max 14.2°F (-9.9°C).

Temperature

January is the coldest month, with an average high-temperature of 14.2°F (-9.9°C) and an average low-temperature of 0.5°F (-17.5°C).

Humidity

The most humid month in Rolla is January, with an average relative humidity of 93%.

Rainfall

In Rolla, in January, during 2.9 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, in Rolla, there are 110.9 rainfall days, and 17.95" (456mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Rolla, during January, snow falls for 15.5 days and regularly aggregates up to 3.27" (83mm) of snow. In Rolla, North Dakota, during the entire year, snow falls for 86.8 days, and aggregates up to 23.78" (604mm) of snow.

Daylight

In January, the average length of the day is 8.8h.

Sunshine

January has the least sunshine of the year, with an average of 3.1h of sunshine.

UV index

Months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Rolla?

January is the coldest month in Rolla, North Dakota, with an average high-temperature of 14.2°F (-9.9°C) and an average low-temperature of 0.5°F (-17.5°C).

What is the temperature in January in Rolla?

In January, the average high-temperature is 14.2°F (-9.9°C), and the average low-temperature is 0.5°F (-17.5°C).

What is the most humid month in Rolla?

The most humid month is January, with an average relative humidity of 93%.

What is the average humidity in January in Rolla?

The average relative humidity in January in Rolla, North Dakota, is 93%.

How many days does it rain in January in Rolla?

In Rolla, North Dakota, during January, the rain falls for 2.9 days and regularly aggregates up to 0.51" (13mm) of precipitation.

How many days does it snow in January in Rolla?

In January, in Rolla, North Dakota, it is snowing for 15.5 days. Throughout January, 3.27" (83mm) of snow is accumulated.

How many hours of daylight does Rolla have in January?

In Rolla, the average length of the day in January is 8.8h.

What is the month with the least sunshine in Rolla?

The month with the least sunshine in Rolla, North Dakota, is January, with an average of 3.1h of sunshine.

How many hours of sunshine does Rolla have in January?

In January, the average sunshine is 3.1h.

When is the lowest UV index in Rolla?

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

How high is the UV index in January in Rolla?

In Rolla, North Dakota, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.

Average temperature in January
Rolla, ND

Average temperature in January - Rolla, ND
  • Average high temperature in January: 14.2°F

The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is January (14.2°F).

  • Average low temperature in January: 0.5°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).

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Average pressure in January
Rolla, ND

Average pressure in January - Rolla, ND
  • Average pressure in January: 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 January
Rolla, ND

Average wind speed in January - Rolla, ND
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

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Average humidity in January
Rolla, ND

Average humidity in January - Rolla, ND
  • Average humidity in January: 93%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in January
Rolla, ND

Average rainfall in January - Rolla, ND
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days in January
Rolla, ND

Average rainfall days in January - Rolla, ND
  • Average rainfall days in January: 2.9 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2 days).

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Average snowfall in January
Rolla, ND

Average snowfall in January - Rolla, ND
  • Average snowfall in January: 3.27"

The month with the highest snowfall is November (4.29").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Rolla, ND

Average snowfall days in January - Rolla, ND
  • Average snowfall days in January: 15.5 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 January /
Average sunshine in January
Rolla, ND

Average daylight in January / Average sunshine in January - Rolla, ND
  • Average daylight in January: 8.8h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in January: 3.1h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is January (Average sunshine: 3.1h).

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Average sunshine days in January
Rolla, ND

Average sunshine days in January - Rolla, ND
  • Average sunshine days in January: 14.3 days

The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is June (8.1 days).

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Average UV index in January
Rolla, ND

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February and December (UV index 1).

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Average cloud cover in January
Rolla, ND

Average cloud cover in January - Rolla, ND
  • Average cloud cover in January: 69

The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in January
Rolla, ND

Average visibility in January - Rolla, ND
  • Average visibility in January: 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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