December weather forecast
Glendive, MT

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The calm Yellowstone River running under a bridge through a vast industrial landscape, in Glendive, Montana
The calm Yellowstone River running under a bridge through a vast industrial landscape, in Glendive, Montana

Weather in December

December, true to its character, brings back the full spectrum of winter to Glendive, Montana. The weather is colder with high humidity levels and the landscape turns into a white wonderland due to the snowfall. The shorter days create an ambiance of elegant winter evenings. December delivers a cold end to the year, paving the way for another chilly start with January. A notable feature about December is its high humidity level of 82%, replicating the similar conditions as observed in January.

Temperature

In Glendive, the average high-temperature in December significantly decreases from an icy 40.8°F (4.9°C) in November to a freezing cold 26.4°F (-3.1°C). December is noted for a mean low-temperature of 14.2°F (-9.9°C).

Humidity

The average relative humidity in December in Glendive is 82%.

Rainfall

In Glendive, in December, it is raining for 3.2 days, with typically 0.43" (11mm) of accumulated precipitation. In Glendive, during the entire year, the rain falls for 89.5 days and collects up to 10.59" (269mm) of precipitation.

Snowfall

Months with snowfall in Glendive are January through May, October through December. In Glendive, in December, during 9.7 snowfall days, 2.13" (54mm) of snow is typically accumulated. In Glendive, during the entire year, snow falls for 45.2 days and aggregates up to 10.55" (268mm) of snow.

Daylight

The month with the shortest days in Glendive is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 7:25 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:19 pm MST.

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index in Glendive are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

How cold is December in Glendive?

December temperatures in Glendive, Montana, vary between a high-temperature of 26.4°F (-3.1°C) and a low-temperature of 14.2°F (-9.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 84.2°F (29°C).

What is the average humidity in December in Glendive?

In Glendive, the average relative humidity in December is 82%.

How many days does it rain in December in Glendive?

In Glendive, Montana, in December, it is raining for 3.2 days, with typically 0.43" (11mm) of accumulated precipitation.

How much does it snow in Glendive in December?

In Glendive, in December, snow falls for 9.7 days, with typically accumulated 2.13" (54mm) of snow.

What is the month with the shortest days in Glendive?

December has the shortest days of the year, with an average of 8h and 36min of daylight.

What is the average length of the day in December in Glendive?

In December, the average day length in Glendive is 8h and 34min.

What time are sunrise and sunset in December in Glendive?

On the first day of December, sunrise is at 7:25 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:19 pm MST.

What are the months with the least sunshine in Glendive?

The months with the least sunshine are February and December, with an average of 4.8h of sunshine.

How long on average sun shines in December in Glendive?

The average sunshine duration in December in Glendive is 4.8h.

When is the lowest UV index in Glendive?

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

What is the UV index reading in December in Glendive?

In Glendive, Montana, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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 December
Glendive, MT

Average temperature in December - Glendive, MT
  • Average high temperature in December: 26.4°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in December: 14.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in December
Glendive, MT

Average pressure in December - Glendive, MT
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in December
Glendive, MT

Average wind speed in December - Glendive, MT
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

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Average humidity in December
Glendive, MT

Average humidity in December - Glendive, MT
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in December
Glendive, MT

Average rainfall in December - Glendive, MT
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is May (1.73").
The driest months (with the least rainfall) are January, March and November (0.35").

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Average rainfall days in December
Glendive, MT

Average rainfall days in December - Glendive, MT
  • Average rainfall days in December: 3.2 days

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is February (3.1 days).

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Average snowfall in December
Glendive, MT

Average snowfall in December - Glendive, MT
  • Average snowfall in December: 2.13"

The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Glendive, MT

Average snowfall days in December - Glendive, MT
  • Average snowfall days in December: 9.7 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Glendive, MT

Average daylight in December / Average sunshine in December - Glendive, MT
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in December
Glendive, MT

Average sunshine days in December - Glendive, MT
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (14.9 days).

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Average UV index in December
Glendive, MT

Average UV index in December - Glendive, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in December
Glendive, MT

Average cloud cover in December - Glendive, MT
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 17).

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Average visibility in December
Glendive, MT

Average visibility in December - Glendive, MT
  • Average visibility in December: 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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Glendive, Montana, USA

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