December weather forecast
Cameron Crossing, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Cameron Crossing, Montana, with an average temperature ranging between max 30.4°F (-0.9°C) and min 16.7°F (-8.5°C).

Temperature

Cameron Crossing's coldest weather arrives in December, when temperatures average a high of 30.4°F (-0.9°C) and a low of 16.7°F (-8.5°C).

Humidity

In Cameron Crossing, Montana, the average relative humidity in December is 77%.

Rainfall

December is the month with the least rainfall in Cameron Crossing. Rain falls for 3.4 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Cameron Crossing, in December, snow falls for 9.3 days, with typically accumulated 3.15" (80mm) of snow. In Cameron Crossing, during the entire year, snow falls for 55.2 days and aggregates up to 23.5" (597mm) of snow.

Daylight

December has the shortest days of the year in Cameron Crossing, with an average of 8h and 42min of daylight.
On the first day of December in Cameron Crossing, sunrise is at 7:24 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:29 pm MST.

Sunshine

In December, the average sunshine in Cameron Crossing is 5.4h.

UV index

The months with the lowest UV index in Cameron Crossing are January through April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Cameron Crossing?

In Cameron Crossing, the average lowest temperatures are observed in December, with a high of 30.4°F (-0.9°C) and a low of 16.7°F (-8.5°C).

How cold is it in Cameron Crossing in December?

The average high-temperature, in December, in Cameron Crossing, is 30.4°F (-0.9°C), while the average low-temperature is 16.7°F (-8.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 82.4°F (28°C).

What is the average humidity in December in Cameron Crossing?

In December, the average relative humidity is 77%.

What is the driest month in Cameron Crossing?

The month with the least rainfall is December, when the rain falls for 3.4 days and typically collects 0.47" (12mm) of precipitation.

How many days does it rain in December in Cameron Crossing?

In Cameron Crossing, Montana, during December, the rain falls for 3.4 days and regularly aggregates up to 0.47" (12mm) of precipitation.

How many days does it snow in December in Cameron Crossing?

In December, it is snowing for 9.3 days. Throughout December, 3.15" (80mm) of snow is accumulated.

What is the month with the shortest days in Cameron Crossing?

The month with the shortest days is December, with an average of 8h and 42min of daylight.

How many hours of daylight does Cameron Crossing have in December?

The average day length in December is 8h and 45min.

When are sunrise and sunset in December in Cameron Crossing?

On the first day of December in Cameron Crossing, sunrise is at 7:24 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:29 pm MST.

How long on average sun shines in December in Cameron Crossing?

In December, the average sunshine duration is 5.4h.

What are the months with the lowest UV index in Cameron Crossing?

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cameron Crossing.

How high is the UV index in December in Cameron Crossing?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Cameron Crossing, MT

Average temperature in December - Cameron Crossing, MT
  • Average high temperature in December: 30.4°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Cameron Crossing, MT

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Cameron Crossing, MT

Average wind speed in December - Cameron Crossing, MT
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in December
Cameron Crossing, MT

Average humidity in December - Cameron Crossing, MT
  • Average humidity in December: 77%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).

Average rainfall in December
Cameron Crossing, MT

Average rainfall in December - Cameron Crossing, MT
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

Average rainfall days in December
Cameron Crossing, MT

Average rainfall days in December - Cameron Crossing, MT
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in December
Cameron Crossing, MT

Average snowfall in December - Cameron Crossing, MT
  • Average snowfall in December: 3.15"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Cameron Crossing, MT

Average snowfall days in December - Cameron Crossing, MT
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Cameron Crossing, MT

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

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Cameron Crossing, MT

Average sunshine days in December - Cameron Crossing, MT
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Cameron Crossing, MT

Average UV index in December - Cameron Crossing, 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, April, November and December (UV index 2).

Average cloud cover in December
Cameron Crossing, MT

Average cloud cover in December - Cameron Crossing, MT
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Cameron Crossing, MT

Average visibility in December - Cameron Crossing, 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).

Cameron Crossing, Montana, USA

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