January weather forecast
Perma, MT

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Weather in January

January, the same as December, in Perma, Montana, is a freezing cold winter month, with temperature in the range of an average high of 29.8°F (-1.2°C) and an average low of 18°F (-7.8°C).

Temperature

Upon the onset of January, Perma witnesses an average high-temperature of a still subzero cold 29.8°F (-1.2°C), showing a close resemblance to the prior month. An average low-temperature of 18°F (-7.8°C) is expected during January.

Humidity

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

Rainfall

In Perma, in January, it is raining for 9.1 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, in Perma, Montana, there are 129.9 rainfall days, and 13.5" (343mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Perma. In Perma, in January, snow falls for 13.9 days, with typically accumulated 5.91" (150mm) of snow. In Perma, during the entire year, snow falls for 67.1 days and aggregates up to 28.27" (718mm) of snow.

Daylight

In January, the average length of the day is 8h and 59min.
On the first day of January, sunrise is at 8:25 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:37 pm MST.

Sunshine

The month with the least sunshine in Perma, Montana, is January, with an average of 4.7h of sunshine.

UV index

In Perma, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

How cold is January in Perma?

The average high-temperature, in January, in Perma, is 29.8°F (-1.2°C), while the average low-temperature is 18°F (-7.8°C).

What is the most humid month in Perma?

With an average relative humidity of 91%, January is the most humid month in Perma, Montana.

What is the average humidity in January in Perma?

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

How much does it rain in Perma in January?

In Perma, Montana, during January, the rain falls for 9.1 days and regularly aggregates up to 1.06" (27mm) of precipitation.

How much does it snow in Perma in January?

In January, in Perma, Montana, it is snowing for 13.9 days. Throughout January, 5.91" (150mm) of snow is accumulated.

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

In January, the average day length in Perma, Montana, is 8h and 59min.

When are sunrise and sunset in January in Perma?

On the first day of January in Perma, sunrise is at 8:25 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:37 pm MST.

What is the month with the least sunshine in Perma?

The month with the least sunshine is January, with an average of 4.7h of sunshine.

How long on average sun shines in January in Perma?

In Perma, the average sunshine duration in January is 4.7h.

How high is the UV index in January in Perma?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Perma, MT

Average temperature in January - Perma, MT
  • Average high temperature in January: 29.8°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.4°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

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Average pressure in January
Perma, MT

Average pressure in January - Perma, MT
  • Average pressure in January: 30.18"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Perma, MT

Average wind speed in January - Perma, MT
  • Average wind speed in January: 3.9mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are January, August and December (3.9mph).

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Average humidity in January
Perma, MT

Average humidity in January - Perma, 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 (49%).

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Average rainfall in January
Perma, MT

Average rainfall in January - Perma, MT
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.63").

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Average rainfall days in January
Perma, MT

Average rainfall days in January - Perma, MT
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is August (7.4 days).

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Average snowfall in January
Perma, MT

Average snowfall in January - Perma, MT
  • Average snowfall in January: 5.91"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Perma, MT

Average snowfall days in January - Perma, MT
  • Average snowfall days in January: 13.9 days

The month with the highest number of snowfall days is December (14.5 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
Perma, MT

Average daylight in January / Average sunshine in January - Perma, MT
  • Average daylight in January: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in January: 4h and 4min

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 42min).

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Average sunshine days in January
Perma, MT

Average sunshine days in January - Perma, MT
  • Average sunshine days in January: 13.7 days

The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (11 days).

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Average UV index in January
Perma, MT

Average UV index in January - Perma, 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
Perma, MT

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in January
Perma, MT

Average visibility in January - Perma, 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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Perma, Montana, USA

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