December weather forecast
Evergreen, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Evergreen, Montana, with an average temperature ranging between min 14.7°F (-9.6°C) and max 25.9°F (-3.4°C).

Temperature

December is the month when Evergreen experiences its coldest temperatures, averaging a high of 25.9°F (-3.4°C) and a low of 14.7°F (-9.6°C).

Humidity

In Evergreen, the average relative humidity in December is 90%.

Rainfall

In Evergreen, in December, it is raining for 10.5 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 142.8 rainfall days, and 17.36" (441mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Evergreen, Montana, in December, during 21.5 snowfall days, 10.79" (274mm) of snow is typically accumulated. In Evergreen, during the entire year, snow falls for 104.7 days and aggregates up to 51.34" (1304mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 8:07 am and sunset at 4:45 pm. On the last day of December, sunrise is at 8:27 am and sunset at 4:53 pm MST.

Sunshine

In Evergreen, Montana, the average sunshine in December is 4.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What are the coldest months in Evergreen?

In Evergreen, the average lowest temperatures are observed in December, with a high of 25.9°F (-3.4°C) and a low of 14.7°F (-9.6°C).

How cold is December in Evergreen?

In December, in Evergreen, the average high-temperature is 25.9°F (-3.4°C), and the average low-temperature is 14.7°F (-9.6°C).

What is the average humidity in December in Evergreen?

In December, the average relative humidity in Evergreen is 90%.

How much does it rain in Evergreen in December?

In Evergreen, during December, the rain falls for 10.5 days and regularly aggregates up to 1.65" (42mm) of precipitation.

How much does it snow in Evergreen in December?

In Evergreen, in December, during 21.5 snowfall days, 10.79" (274mm) of snow is typically accumulated.

What is the month with the shortest days in Evergreen?

The month with the shortest days in Evergreen, Montana, is December, with an average of 8h and 24min of daylight.

How many hours of daylight does Evergreen have in December?

The average day length in December in Evergreen, Montana, is 8h and 25min.

When is the sunrise / sunset in December in Evergreen?

On the first day of December in Evergreen, Montana, sunrise is at 8:07 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 4:53 pm MST.

How long on average sun shines in December in Evergreen?

In Evergreen, Montana, the average sunshine duration in December is 4.1h.

When is the lowest UV index in Evergreen?

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

What is the UV index reading in December in Evergreen?

In December, the average daily maximum UV index in Evergreen is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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 December
Evergreen, MT

Average temperature in December - Evergreen, MT
  • Average high temperature in December: 25.9°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (25.9°F).

  • Average low temperature in December: 14.7°F

The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in December
Evergreen, MT

Average pressure in December - Evergreen, MT
  • Average pressure in December: 30.15"Hg

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

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Average wind speed in December
Evergreen, MT

Average wind speed in December - Evergreen, MT
  • Average wind speed in December: 3.8mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in December
Evergreen, MT

Average humidity in December - Evergreen, MT
  • Average humidity in December: 90%

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
Evergreen, MT

Average rainfall in December - Evergreen, MT
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is August (0.55").

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Average rainfall days in December
Evergreen, MT

Average rainfall days in December - Evergreen, MT
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is April (17.9 days).
The month with the least rainy days is August (6.6 days).

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Average snowfall in December
Evergreen, MT

Average snowfall in December - Evergreen, MT
  • Average snowfall in December: 10.79"

The month with the highest snowfall is January (11.3").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Evergreen, MT

Average snowfall days in December - Evergreen, MT
  • Average snowfall days in December: 21.5 days

The month with the highest number of snowfall days is December (21.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Evergreen, MT
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Evergreen, MT

Average sunshine days in December - Evergreen, MT
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (6.8 days).

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Average UV index in December
Evergreen, MT

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

The month with the highest UV index is 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 December
Evergreen, MT

Average cloud cover in December - Evergreen, MT
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in December
Evergreen, MT

Average visibility in December - Evergreen, MT
  • Average visibility in December: 4mi

The 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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Evergreen, Montana, USA

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