January weather forecast
Polson, MT

Weather in January

January, the same as December, in Polson, Montana, is a freezing cold winter month, with an average temperature ranging between max 29.7°F (-1.3°C) and min 17.8°F (-7.9°C).

Temperature

In Polson, the average high-temperature in January is essentially the same as in December - a still freezing cold 29.7°F (-1.3°C). In January, in Polson, the average low-temperature is 17.8°F (-7.9°C).

Humidity

January is the most humid month, with an average relative humidity of 91%.

Rainfall

In Polson, it is raining for 12.4 days, with typically 1.69" (43mm) of accumulated precipitation. In Polson, during the entire year, the rain falls for 160.2 days and collects up to 18.11" (460mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Polson, during 19.7 snowfall days, 10.24" (260mm) of snow is typically accumulated. In Polson, during the entire year, snow falls for 99 days and aggregates up to 47.28" (1201mm) of snow.

Daylight

In January, the average length of the day in Polson is 8h and 57min.
On the first day of January, sunrise is at 8:25 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:36 pm MST.

Sunshine

The month with the least sunshine in Polson is January, with an average of 4.5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Polson. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 1 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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the most humid month in Polson?

January is the most humid month, with an average relative humidity of 91%.

What is the average humidity in January in Polson?

In Polson, the average relative humidity in January is 91%.

How many days does it rain in January in Polson?

In January, in Polson, the rain falls for 12.4 days. Throughout January, 1.69" (43mm) of precipitation is accumulated.

How much does it snow in Polson in January?

In Polson, Montana, in January, during 19.7 snowfall days, 10.24" (260mm) of snow is typically accumulated.

What is the average length of the day in January in Polson?

In Polson, the average day length in January is 8h and 57min.

What time are sunrise and sunset in January in Polson?

On the first day of January in Polson, sunrise is at 8:25 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:36 pm MST.

What is the month with the least sunshine in Polson?

With an average of 4.5h of sunshine, January has the least sunshine of the year in Polson, Montana.

How many hours of sunshine does Polson have in January?

In Polson, Montana, the average sunshine duration in January is 4.5h.

When is the lowest UV index in Polson?

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

How high is the UV index in January in Polson?

In Polson, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Polson, MT

Average temperature in January - Polson, MT
  • Average high temperature in January: 29.7°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 (27.9°F).

  • Average low temperature in January: 17.8°F

The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

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Average pressure in January
Polson, MT

Average pressure in January - Polson, 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 (29.92"Hg).

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Average wind speed in January
Polson, MT

Average wind speed in January - Polson, MT
  • Average wind speed in January: 4mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in January
Polson, MT

Average humidity in January - Polson, MT
  • Average humidity in January: 91%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).

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Average rainfall in January
Polson, MT

Average rainfall in January - Polson, MT
  • Average rainfall in January: 1.69"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").

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Average rainfall days in January
Polson, MT

Average rainfall days in January - Polson, MT
  • Average rainfall days in January: 12.4 days

The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).

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Average snowfall in January
Polson, MT

Average snowfall in January - Polson, MT
  • Average snowfall in January: 10.24"

The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Polson, MT

Average snowfall days in January - Polson, MT
  • Average snowfall days in January: 19.7 days

The month with the highest number of snowfall days is December (19.8 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
Polson, MT

Average daylight in January / Average sunshine in January - Polson, MT
  • Average daylight in January: 8h and 57min

The month with the longest days is June (Average daylight: 15h and 56min).
The month with the shortest days is December (Average daylight: 8h and 29min).

  • Average sunshine in January: 4h and 30min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in January
Polson, MT

Average sunshine days in January - Polson, MT
  • Average sunshine days in January: 9.3 days

The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).

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Average UV index in January
Polson, MT

Average UV index in January - Polson, MT
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in January
Polson, MT

Average cloud cover in January - Polson, MT
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).

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Average visibility in January
Polson, MT

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

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

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