January weather forecast
Missoula, MT

The scenic area surrounding the iconic Higgins Street Bridge in Missoula, Montana
The scenic area surrounding the iconic Higgins Street Bridge in Missoula, Montana

Weather in January

January, like December, is a freezing cold winter month in Missoula, Montana, with temperature in the range of an average low of 16.7°F (-8.5°C) and an average high of 30.2°F (-1°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still freezing cold 30.2°F (-1°C). In January, the average low-temperature is 16.7°F (-8.5°C).

Humidity

The most humid month in Missoula is January, with an average relative humidity of 90%.

Rainfall

In Missoula, during January, the rain falls for 5.5 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Missoula, during the entire year, the rain falls for 67.5 days and collects up to 3.27" (83mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In January, in Missoula, it is snowing for 8.8 days. Throughout January, 1.3" (33mm) of snow is accumulated. In Missoula, during the entire year, snow falls for 44 days and aggregates up to 8.07" (205mm) of snow.

Daylight

In Missoula, the average length of the day in January is 9h and 2min.
On the first day of January, sunrise is at 8:21 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:37 pm MST.

Sunshine

With an average of 4.9h of sunshine, January has the least sunshine of the year in Missoula, Montana.

UV index

In Missoula, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 most humid month in Missoula?

With an average relative humidity of 90%, January is the most humid month in Missoula, Montana.

What is the average humidity in January in Missoula?

In Missoula, the average relative humidity in January is 90%.

How much does it rain in Missoula in January?

In Missoula, Montana, in January, it is raining for 5.5 days, with typically 0.2" (5mm) of accumulated precipitation.

How many days does it snow in January in Missoula?

In January, in Missoula, Montana, it is snowing for 8.8 days. Throughout January, 1.3" (33mm) of snow is accumulated.

How many hours of daylight does Missoula have in January?

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

What time are sunrise and sunset in January in Missoula?

In January, on the first day of the month, sunrise is at 8:21 am and sunset at 4:58 pm. On the last day of the month, in Missoula, Montana, sunrise is at 8:01 am and sunset at 5:37 pm MST.

What is the month with the least sunshine in Missoula?

The month with the least sunshine is January, with an average of 4.9h of sunshine.

How long on average sun shines in January in Missoula?

In Missoula, Montana, the average sunshine duration in January is 4.9h.

What is the UV index intensity in January in Missoula?

In Missoula, Montana, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Missoula, MT

Average temperature in January - Missoula, MT
  • Average high temperature in January: 30.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (28°F).

  • Average low temperature in January: 16.7°F

The month with the highest average low temperature is August (46.9°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).

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Average pressure in January
Missoula, MT

Average pressure in January - Missoula, MT
  • Average pressure in January: 30.19"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Missoula, MT

Average wind speed in January - Missoula, MT
  • Average wind speed in January: 4.4mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in January
Missoula, MT

Average humidity in January - Missoula, MT
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is July (50%).

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Average rainfall in January
Missoula, MT

Average rainfall in January - Missoula, MT
  • Average rainfall in January: 0.2"

The wettest month (with the highest rainfall) is April (0.47").
The driest months (with the least rainfall) are July and December (0.16").

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Average rainfall days in January
Missoula, MT

Average rainfall days in January - Missoula, MT
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is April (8.8 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in January
Missoula, MT

Average snowfall in January - Missoula, MT
  • Average snowfall in January: 1.3"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Missoula, MT

Average snowfall days in January - Missoula, MT
  • Average snowfall days in January: 8.8 days

The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Missoula, MT

Average daylight in January / Average sunshine in January - Missoula, MT
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 49min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in January: 4h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in January
Missoula, MT

Average sunshine days in January - Missoula, MT
  • Average sunshine days in January: 22.1 days

The month with the most sunshine days is July (27 days).
The month with the least sunshine days is April (17.8 days).

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Average UV index in January
Missoula, MT

Average UV index in January - Missoula, MT
  • 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 February and December (UV index 1).

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Average cloud cover in January
Missoula, MT

Average cloud cover in January - Missoula, MT
  • Average cloud cover in January: 51

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 14).

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Average visibility in January
Missoula, MT

Average visibility in January - Missoula, MT
  • Average visibility in January: 4mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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