December weather forecast
Somers, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Somers, Montana, with an average temperature varying between 27.5°F (-2.5°C) and 16.7°F (-8.5°C).

Temperature

December is the coldest month, with the temperature often reaching an average high of 27.5°F (-2.5°C) and an average low of 16.7°F (-8.5°C).

Humidity

The average relative humidity in December is 88%.

Rainfall

In Somers, in December, it is raining for 11.5 days, with typically 1.97" (50mm) of accumulated precipitation. In Somers, during the entire year, the rain falls for 153.5 days and collects up to 19.76" (502mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Somers, Montana. December is the month with the most snowfall. Snow falls for 20.1 days and accumulates 12.32" (313mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 8:06 am and sunset at 4:45 pm. On the last day of December, sunrise is at 8:26 am and sunset at 4:53 pm MST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Somers?

December is the month when Somers, Montana, sees the average lowest temperatures, with a high of 27.5°F (-2.5°C) and a low of 16.7°F (-8.5°C).

How cold is December?

Somers in December has an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 16.7°F (-8.5°C).

What is the average humidity in December?

In Somers, the average relative humidity in December is 88%.

How many days does it rain in December?

In December, the rain falls for 11.5 days. Throughout December, 1.97" (50mm) of precipitation is accumulated.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 20.1 days and typically aggregates up to 12.32" (313mm) of snow.

How many days does it snow in December in Somers?

In December, it is snowing for 20.1 days. Throughout December, 12.32" (313mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 8h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 8h and 26min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 8:06 am and sunset at 4:45 pm. On the last day of the month, in Somers, sunrise is at 8:26 am and sunset at 4:53 pm MST.

How many hours of sunshine does Somers have in December?

In Somers, the average sunshine duration in December is 4.3h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
Somers, MT

Average temperature in December - Somers, MT
  • Average high temperature in December: 27.5°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (27.5°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

Average pressure in December
Somers, MT

Average pressure in December - Somers, MT
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Somers, MT

Average wind speed in December - Somers, MT
  • Average wind speed in December: 4.3mph

The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in December
Somers, MT

Average humidity in December - Somers, MT
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (53%).

Average rainfall in December
Somers, MT

Average rainfall in December - Somers, MT
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is June (2.36").
The driest months (with the least rainfall) are July and August (0.63").

Average rainfall days in December
Somers, MT

Average rainfall days in December - Somers, MT
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is April (18.8 days).
The month with the least rainy days is August (7.2 days).

Average snowfall in December
Somers, MT

Average snowfall in December - Somers, MT
  • Average snowfall in December: 12.32"

The month with the highest snowfall is December (12.32").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Somers, MT

Average snowfall days in December - Somers, MT
  • Average snowfall days in December: 20.1 days

The month with the highest number of snowfall days is December (20.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Somers, 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 2min

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 6min).

Average sunshine days in December
Somers, MT

Average sunshine days in December - Somers, MT
  • Average sunshine days in December: 9.2 days

The month with the most sunshine days is July (20.2 days).
The months with the least sunshine days are February and March (7.8 days).

Average UV index in December
Somers, MT

Average UV index in December - Somers, 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).

Average cloud cover in December
Somers, MT

Average cloud cover in December - Somers, MT
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in December
Somers, MT

Average visibility in December - Somers, MT
  • Average visibility in December: 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, March and December (4mi).

Somers, Montana, USA

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