December weather forecast
Morgan, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Morgan, Montana, with an average temperature fluctuating between 24.8°F (-4°C) and 12.7°F (-10.7°C).

Temperature

The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from an icy 38.8°F (3.8°C) in November to a subzero cold 24.8°F (-4°C). Throughout December, the temperature falls to an average low of 12.7°F (-10.7°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In December, the rain falls for 4.2 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. In Morgan, during the entire year, the rain falls for 91.8 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall in Morgan. Snow falls for 11.8 days and accumulates 3.43" (87mm) of snow.

Daylight

With an average of 8h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:16 pm. On the last day of December, sunrise is at 8:05 am and sunset at 4:24 pm MST.

Sunshine

In December, the average sunshine in Morgan is 4.8h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Morgan in December?

The high-temperature in Morgan during December is 24.8°F (-4°C) and the low-temperature is 12.7°F (-10.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is appraised at 82.4°F (28°C).

What is the average humidity in December in Morgan?

In Morgan, the average relative humidity in December is 83%.

How much does it rain in Morgan in December?

In December, the rain falls for 4.2 days. Throughout December, 0.51" (13mm) of precipitation is accumulated.

What is the snowiest month in Morgan?

The month with the most snowfall in Morgan, Montana, is December, when snow falls for 11.8 days and typically aggregates up to 3.43" (87mm) of snow.

How much does it snow in Morgan in December?

In December, in Morgan, Montana, it is snowing for 11.8 days. Throughout December, 3.43" (87mm) of snow is accumulated.

What is the month with the shortest days in Morgan?

With an average of 8h and 18min of daylight, December has the shortest days of the year.

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

The average day length in December in Morgan is 8h and 19min.

When is the sunrise / sunset in December in Morgan?

On the first day of December in Morgan, sunrise is at 7:44 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:24 pm MST.

How long on average sun shines in December in Morgan?

In Morgan, Montana, the average sunshine duration in December is 4.8h.

What is the month with the lowest UV index in Morgan?

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

What is the UV index intensity in December in Morgan?

The average daily maximum UV index in December in Morgan, Montana, is 2. A UV Index value of 2, and less, symbolizes 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
Morgan, MT

Average temperature in December - Morgan, MT
  • Average high temperature in December: 24.8°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).

  • Average low temperature in December: 12.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).

Average pressure in December
Morgan, MT

Average pressure in December - Morgan, MT
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in December
Morgan, MT

Average wind speed in December - Morgan, MT
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).

Average humidity in December
Morgan, MT

Average humidity in December - Morgan, MT
  • Average humidity in December: 83%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).

Average rainfall in December
Morgan, MT

Average rainfall in December - Morgan, MT
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").

Average rainfall days in December
Morgan, MT

Average rainfall days in December - Morgan, MT
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in December
Morgan, MT

Average snowfall in December - Morgan, MT
  • Average snowfall in December: 3.43"

The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Morgan, MT

Average snowfall days in December - Morgan, MT
  • Average snowfall days in December: 11.8 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

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 18min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Morgan, MT

Average sunshine days in December - Morgan, MT
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).

Average UV index in December
Morgan, MT

Average UV index in December - Morgan, MT
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
Morgan, MT

Average cloud cover in December - Morgan, 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 18).

Average visibility in December
Morgan, MT

Average visibility in December - Morgan, MT
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Morgan, Montana, USA

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