January weather forecast
Marion, MT

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Weather in January

January, like December, is a freezing cold winter month in Marion, Montana, with an average temperature varying between 16.2°F (-8.8°C) and 28.6°F (-1.9°C).

Temperature

As Marion transitions from December to January, the average high-temperatures adjust to a still subzero cold 28.6°F (-1.9°C), nearly the same as the previous 27.1°F (-2.7°C). During January, the average low-temperature in Marion is a still freezing cold 16.2°F (-8.8°C).

Humidity

With an average relative humidity of 93%, January is the most humid month in Marion.

Rainfall

In Marion, in January, during 8 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Marion, Montana, during the entire year, the rain falls for 129.8 days and collects up to 16.42" (417mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Marion. In Marion, in January, during 22.3 snowfall days, 11.14" (283mm) of snow is typically accumulated. Throughout the year, in Marion, there are 117.4 snowfall days, and 58.62" (1489mm) of snow is accumulated.

Daylight

The average length of the day in January in Marion, Montana, is 8h and 54min.
On the first day of January, sunrise is at 8:28 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:36 pm MST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Always opt for UVA and UVB-resistant sunglasses on radiant days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January in Marion?

In January, in Marion, the average high-temperature is 28.6°F (-1.9°C), and the average low-temperature is 16.2°F (-8.8°C).

What is the most humid month in Marion?

With an average relative humidity of 93%, January is the most humid month in Marion, Montana.

What is the average humidity in January in Marion?

In January, the average relative humidity is 93%.

How much does it rain in Marion in January?

In January, the rain falls for 8 days. Throughout January, 1.42" (36mm) of precipitation is accumulated.

How many days does it snow in January in Marion?

In Marion, Montana, during January, snow falls for 22.3 days and regularly aggregates up to 11.14" (283mm) of snow.

How many hours of daylight does Marion have in January?

The average day length in January in Marion is 8h and 54min.

When is the sunrise / sunset in January in Marion?

In January, on the first day of the month, sunrise is at 8:28 am and sunset at 4:55 pm. On the last day of the month, in Marion, Montana, sunrise is at 8:07 am and sunset at 5:36 pm MST.

What is the month with the least sunshine in Marion?

January has the least sunshine of the year in Marion, Montana, with an average of 3.5h of sunshine.

How many hours of sunshine does Marion have in January?

In January, the average sunshine duration is 3.5h.

What are the months with the lowest UV index in Marion?

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

What is the UV index intensity in January in Marion?

In Marion, Montana, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Marion, MT

Average temperature in January - Marion, MT
  • Average high temperature in January: 28.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.1°F).

  • Average low temperature in January: 16.2°F

The month with the highest average low temperature is July (48.4°F).
The coldest months (with the lowest average low temperature) are January and December (16.2°F).

Average pressure in January
Marion, MT

Average pressure in January - Marion, MT
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Marion, MT

Average wind speed in January - Marion, MT
  • Average wind speed in January: 3.7mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are August and December (3.6mph).

Average humidity in January
Marion, MT

Average humidity in January - Marion, MT
  • Average humidity in January: 93%

The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (52%).

Average rainfall in January
Marion, MT

Average rainfall in January - Marion, MT
  • Average rainfall in January: 1.42"

The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is July (0.59").

Average rainfall days in January
Marion, MT

Average rainfall days in January - Marion, MT
  • Average rainfall days in January: 8 days

The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is December (6.5 days).

Average snowfall in January
Marion, MT

Average snowfall in January - Marion, MT
  • Average snowfall in January: 11.14"

The month with the highest snowfall is December (12.36").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Marion, MT

Average snowfall days in January - Marion, MT
  • Average snowfall days in January: 22.3 days

The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in January / Average sunshine in January - Marion, MT
  • Average daylight in January: 8h and 5min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in January
Marion, MT

Average sunshine days in January - Marion, MT
  • Average sunshine days in January: 8.9 days

The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (7.1 days).

Average UV index in January
Marion, MT

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

Average cloud cover in January
Marion, MT

Average cloud cover in January - Marion, MT
  • Average cloud cover in January: 64

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in January
Marion, MT

Average visibility in January - Marion, MT
  • Average visibility in January: 3mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

Marion, Montana, USA

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