December weather forecastElk Mountain, WY
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Elk Mountain, Wyoming, with temperature in the range of an average high of 25.7°F (-3.5°C) and an average low of 12.9°F (-10.6°C).Temperature
With its high average temperature of 25.7°F (-3.5°C) and a low of 12.9°F (-10.6°C), December is regarded as the coldest month.Humidity
In December, the average relative humidity is 82%.Rainfall
In Elk Mountain, Wyoming, in December, it is raining for 5.2 days, with typically 1.02" (26mm) of accumulated precipitation. In Elk Mountain, during the entire year, the rain falls for 105.6 days and collects up to 13.94" (354mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Elk Mountain. In Elk Mountain, in December, snow falls for 15.7 days, with typically accumulated 6.93" (176mm) of snow. In Elk Mountain, during the entire year, snow falls for 100.7 days and aggregates up to 54.45" (1383mm) of snow.Daylight
The month with the shortest days in Elk Mountain, Wyoming, is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:45 pm MST.
Sunshine
In Elk Mountain, Wyoming, the average sunshine in December is 5.8h.UV index
December is the month with the lowest UV index in Elk Mountain, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Elk Mountain, WY
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 12.9°F
The month with the highest average low temperature is July (52.3°F).
The coldest months (with the lowest average low temperature) are January and December (12.9°F).
Average pressure in December
Elk Mountain, WY
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Elk Mountain, WY
- Average wind speed in December: 11.4mph
The windiest month (with the highest average wind speed) is November (11.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in December
Elk Mountain, WY
- Average humidity in December: 82%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Elk Mountain, WY
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is August (0.75").
Average rainfall days in December
Elk Mountain, WY
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (4.9 days).
Average snowfall in December
Elk Mountain, WY
- Average snowfall in December: 6.93"
The month with the highest snowfall is April (9.76").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Elk Mountain, WY
- Average snowfall days in December: 15.7 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Elk Mountain, WY
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in December
Elk Mountain, WY
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in December
Elk Mountain, WY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Elk Mountain, WY
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are August and September (Cloud cover 14).
Average visibility in December
Elk Mountain, WY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





