December weather forecastMarbleton, WY
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Marbleton, Wyoming, with an average temperature varying between 23.7°F (-4.6°C) and 5°F (-15°C).Temperature
With average high temperatures of 23.7°F (-4.6°C) and lows of 5°F (-15°C), December is the coldest month.Humidity
In December, the average relative humidity is 84%.Rainfall
In December, in Marbleton, Wyoming, the rain falls for 10.5 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. Throughout the year, in Marbleton, there are 109.9 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
Months with snowfall in Marbleton are January through June, September through December. In Marbleton, in December, snow falls for 14.5 days, with typically accumulated 5.55" (141mm) of snow. In Marbleton, during the entire year, snow falls for 89 days and aggregates up to 43.43" (1103mm) of snow.Daylight
The month with the shortest days in Marbleton is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:31 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:57 pm MST.
Sunshine
The average sunshine in December in Marbleton is 6.4h.UV index
January through April, 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 low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marbleton, WY
- Average high temperature in December: 23.7°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (23.7°F).
- Average low temperature in December: 5°F
The month with the highest average low temperature is July (52°F).
The coldest month (with the lowest average low temperature) is December (5°F).
Average pressure in December
Marbleton, WY
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Marbleton, WY
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in December
Marbleton, WY
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Marbleton, WY
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in December
Marbleton, WY
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in December
Marbleton, WY
- Average snowfall in December: 5.55"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Marbleton, WY
- Average snowfall days in December: 14.5 days
The months with the highest number of snowfall days are February and March (15.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Marbleton, WY
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in December
Marbleton, WY
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Marbleton, WY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Marbleton, WY
- Average cloud cover in December: 36
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Marbleton, WY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





