December weather forecast and climate
West Glacier, MT

Weather in December

December, the first month of the winter, in West Glacier, is still a freezing cold month, with average temperature ranging between min 13.8°F (-10.1°C) and max 25.7°F (-3.5°C).

Temperature

With an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.8°F (-10.1°C), December is the coldest month.

Humidity

In West Glacier, Montana, the average relative humidity in December is 91%.

Rainfall

In December, the rain falls for 8.9 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 126.4 rainfall days, and 11.22" (285mm) of precipitation is accumulated.

Snowfall

Months with snowfall in West Glacier are January through May, September through December. In December, in West Glacier, Montana, it is snowing for 19.1 days. Throughout December, 6.77" (172mm) of snow is accumulated. Throughout the year, there are 97 snowfall days, and 33.86" (860mm) of snow is accumulated.

Daylight

With an average of 8.4h of daylight, December has the shortest days of the year.

Sunshine

The average sunshine in December is 4h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in West Glacier, Montana. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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 coldest month in West Glacier?

The coldest month in West Glacier is December, with an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.8°F (-10.1°C).

What is the average humidity in December in West Glacier?

The average relative humidity in December is 91%.

How many days does it rain in December in West Glacier?

In West Glacier, in December, it is raining for 8.9 days, with typically 1.02" (26mm) of accumulated precipitation.

How much does it snow in West Glacier in December?

In West Glacier, Montana, in December, during 19.1 snowfall days, 6.77" (172mm) of snow is typically accumulated.

What is the month with the shortest days in West Glacier?

The month with the shortest days in West Glacier is December, with an average of 8.4h of daylight.

What is the average length of the day in December in West Glacier?

In West Glacier, the average length of the day in December is 8.4h.

How many hours of sunshine does West Glacier have in December?

In December, the average sunshine is 4h.

When is the lowest UV index in West Glacier?

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

What is the UV index reading in December in West Glacier?

In December, the average daily maximum UV index in West Glacier, Montana, is 1. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.

Average temperature in December
West Glacier, MT

Average temperature in December - West Glacier, MT
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in December: 13.8°F

The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

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Average pressure in December
West Glacier, MT

Average pressure in December - West Glacier, MT
  • Average pressure in December: 30.15"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
West Glacier, MT

Average wind speed in December - West Glacier, MT
  • Average wind speed in December: 3.7mph

The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).

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Average humidity in December
West Glacier, MT

Average humidity in December - West Glacier, MT
  • Average humidity in December: 91%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in December
West Glacier, MT

Average rainfall in December - West Glacier, MT
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days in December
West Glacier, MT

Average rainfall days in December - West Glacier, MT
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall in December
West Glacier, MT

Average snowfall in December - West Glacier, MT
  • Average snowfall in December: 6.77"

The month with the highest snowfall is January (7.72").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in December
West Glacier, MT

Average snowfall days in December - West Glacier, MT
  • Average snowfall days in December: 19.1 days

The month with the highest number of snowfall days is December (19.1 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
West Glacier, MT

Average daylight in December / Average sunshine in December - West Glacier, MT
  • Average daylight in December: 8.4h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in December: 4h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 3.5h).

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Average sunshine days in December
West Glacier, MT

Average sunshine days in December - West Glacier, MT
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).

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Average UV index in December
West Glacier, MT

Average UV index in December - West Glacier, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in December
West Glacier, MT

Average cloud cover in December - West Glacier, MT
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 65).
Months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in December
West Glacier, MT

Average visibility in December - West Glacier, MT
  • Average visibility in December: 4mi

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

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