December weather forecastCameron, MT
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Cameron, Montana, with an average temperature varying between 22.3°F (-5.4°C) and 7.7°F (-13.5°C).Temperature
Cameron reaches its lowest average temperatures in December, measuring 22.3°F (-5.4°C) at the peak and 7.7°F (-13.5°C) at the lowest.Humidity
The average relative humidity in December is 89%.Rainfall
December is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.75" (19mm) of precipitation.Snowfall
Months with snowfall are January through December. In December, it is snowing for 15.5 days. Throughout December, 6.3" (160mm) of snow is accumulated. Throughout the year, there are 136.1 snowfall days, and 86.93" (2208mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:46 am and sunset at 4:45 pm. On the last day of December, sunrise is at 8:05 am and sunset at 4:54 pm MST.
Sunshine
In Cameron, the average sunshine in December is 4.9h.UV index
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cameron, MT
- Average high temperature in December: 22.3°F
The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is December (22.3°F).
- Average low temperature in December: 7.7°F
The month with the highest average low temperature is August (46°F).
The coldest month (with the lowest average low temperature) is December (7.7°F).
Average pressure in December
Cameron, MT
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Cameron, MT
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Cameron, MT
- Average humidity in December: 89%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (50%).
Average rainfall in December
Cameron, MT
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in December
Cameron, MT
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is November (2.9 days).
Average snowfall in December
Cameron, MT
- Average snowfall in December: 6.3"
The month with the highest snowfall is April (14.76").
The month with the least snowfall is August (0.08").
Average snowfall days in December
Cameron, MT
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is April (19.9 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in December /
Average sunshine in December
Cameron, MT
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Cameron, MT
- Average sunshine days in December: 16 days
The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is April (6.9 days).
Average UV index in December
Cameron, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Cameron, MT
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Cameron, MT
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
