December weather forecastCulbertson, MT
December
Weather in December
December, the first month of the winter in Culbertson, is also a subzero cold month, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 24.6°F (-4.1°C).Temperature
The drop of average high-temperatures is noticeable in December, with a decrease from an icy 39.4°F (4.1°C) in November to a subzero cold 24.6°F (-4.1°C). Culbertson's average low-temperature for the month of December records at an extreme cold 12.7°F (-10.7°C).Humidity
In Culbertson, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 3.5 days. Throughout December, 0.31" (8mm) of precipitation is accumulated. In Culbertson, during the entire year, the rain falls for 85.7 days and collects up to 8.5" (216mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Culbertson, during December, snow falls for 11.2 days and regularly aggregates up to 1.65" (42mm) of snow. Throughout the year, there are 56.1 snowfall days, and 8.94" (227mm) of snow is accumulated.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:28 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:14 pm MST.
Sunshine
The average sunshine in December is 4.5h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Culbertson, MT
- Average high temperature in December: 24.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Culbertson, MT
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Culbertson, MT
- Average wind speed in December: 10mph
The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).
Average humidity in December
Culbertson, MT
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).
Average rainfall in December
Culbertson, MT
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in December
Culbertson, MT
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is June (11.4 days).
The months with the least rainy days are January and February (3.2 days).
Average snowfall in December
Culbertson, MT
- Average snowfall in December: 1.65"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Culbertson, MT
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Culbertson, MT
- Average daylight in December: 8h and 24min
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 30min
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 18min).
Average sunshine days in December
Culbertson, MT
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).
Average UV index in December
Culbertson, 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 and February (UV index 1).
Average cloud cover in December
Culbertson, MT
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).
Average visibility in December
Culbertson, 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).
