January weather forecast
Harlem, MT

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Weather in January

January, the same as December, in Harlem, Montana, is a freezing cold winter month, with an average temperature ranging between max 26.8°F (-2.9°C) and min 14.2°F (-9.9°C).

Temperature

As Harlem transitions into January, the average high-temperature stands at a still subzero cold 26.8°F (-2.9°C), offering little variation from the preceding month. Harlem registers a consistent average low-temperature of 14.2°F (-9.9°C) during January.

Humidity

The most humid month in Harlem, Montana, is January, with an average relative humidity of 82%.

Rainfall

In Harlem, in January, during 5.2 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Harlem, during the entire year, the rain falls for 99.1 days and collects up to 10.12" (257mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. The month with the most snowfall is January, when snow falls for 12.4 days and typically aggregates up to 4.02" (102mm) of snow.

Daylight

The average length of the day in January is 8h and 51min.
On the first day of the month, sunrise is at 8:07 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:45 am and sunset at 5:11 pm MST.

Sunshine

The average sunshine in January is 5.5h.

UV index

The months with the lowest UV index in Harlem are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is it in Harlem in January?

During January, Harlem experiences an average high-temperature of 26.8°F (-2.9°C) and a low-temperature of 14.2°F (-9.9°C).

What is the most humid month in Harlem?

The most humid month in Harlem is January, with an average relative humidity of 82%.

What is the average humidity in January in Harlem?

In January, the average relative humidity in Harlem is 82%.

How many days does it rain in January in Harlem?

In Harlem, during January, the rain falls for 5.2 days and regularly aggregates up to 0.63" (16mm) of precipitation.

What is the snowiest month in Harlem?

The month with the most snowfall is January, when snow falls for 12.4 days and typically aggregates up to 4.02" (102mm) of snow.

How many days does it snow in January in Harlem?

In Harlem, Montana, during January, snow falls for 12.4 days and regularly aggregates up to 4.02" (102mm) of snow.

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

In Harlem, Montana, the average day length in January is 8h and 51min.

What time are sunrise and sunset in January in Harlem?

On the first day of January in Harlem, Montana, sunrise is at 8:07 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:11 pm MST.

How long on average sun shines in January in Harlem?

In January, the average sunshine duration in Harlem, Montana, is 5.5h.

When is the lowest UV index in Harlem?

The months with the lowest UV index in Harlem are January through March, October through December, with an average maximum UV index of 2.

How high is the UV index in January in Harlem?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe 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
Harlem, MT

Average temperature in January - Harlem, MT
  • Average high temperature in January: 26.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (26.2°F).

  • Average low temperature in January: 14.2°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is February (12.6°F).

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Average pressure in January
Harlem, MT

Average pressure in January - Harlem, MT
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in January
Harlem, MT

Average wind speed in January - Harlem, MT
  • Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in January
Harlem, MT

Average humidity in January - Harlem, MT
  • Average humidity in January: 82%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in January
Harlem, MT

Average rainfall in January - Harlem, MT
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are February, March and December (0.55").

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Average rainfall days in January
Harlem, MT

Average rainfall days in January - Harlem, MT
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in January
Harlem, MT

Average snowfall in January - Harlem, MT
  • Average snowfall in January: 4.02"

The month with the highest snowfall is January (4.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Harlem, MT

Average snowfall days in January - Harlem, MT
  • Average snowfall days in January: 12.4 days

The month with the highest number of snowfall days is January (12.4 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
Harlem, MT

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in January
Harlem, MT

Average sunshine days in January - Harlem, MT
  • Average sunshine days in January: 16.6 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in January
Harlem, MT

Average UV index in January - Harlem, MT
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in January
Harlem, MT

Average cloud cover in January - Harlem, MT
  • Average cloud cover in January: 41

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in January
Harlem, MT

Average visibility in January - Harlem, MT
  • Average visibility in January: 6mi

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

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Harlem, Montana, USA

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