Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Shell, December is the coldest month, with temperatures averaging a high of 20.8°F (-6.2°C) and a low of 2.3°F (-16.5°C).Humidity
In December, the average relative humidity in Shell is 82%.Rainfall
The month with the least rainfall is December, when the rain falls for 4 days and typically collects 0.75" (19mm) of precipitation.Snowfall
Months with snowfall in Shell are January through June, August through December. In December, it is snowing for 14.1 days. Throughout December, 5.91" (150mm) of snow is accumulated. Throughout the year, in Shell, there are 113.3 snowfall days, and 89.02" (2261mm) of snow is accumulated.Daylight
The month with the shortest days in Shell is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:47 am and sunset at 4:41 pm MST.
Sunshine
In Shell, Wyoming, the average sunshine in December is 5.4h.UV index
The months with the lowest UV index in Shell are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What part of the year is the coldest in Shell?
How cold is it in Shell in December?
What is the average humidity in December in Shell?
What is the driest month in Shell?
How many days does it rain in December in Shell?
How much does it snow in Shell in December?
What is the month with the shortest days in Shell?
What is the average length of the day in December in Shell?
When are sunrise and sunset in December in Shell?
How long on average sun shines in December in Shell?
When is the lowest UV index in Shell?
How high is the UV index in December in Shell?
Average temperature in December
Shell, WY
- Average high temperature in December: 20.8°F
The warmest month (with the highest average high temperature) is July (69.4°F).
The month with the lowest average high temperature is December (20.8°F).
- Average low temperature in December: 2.3°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (2.3°F).
Average pressure in December
Shell, WY
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Shell, WY
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Shell, WY
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (51%).
Average rainfall in December
Shell, WY
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in December
Shell, WY
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is November (2.3 days).
Average snowfall in December
Shell, WY
- Average snowfall in December: 5.91"
The month with the highest snowfall is May (19.33").
The month with the least snowfall is July (0").
Average snowfall days in December
Shell, WY
- Average snowfall days in December: 14.1 days
The month with the highest number of snowfall days is January (15.8 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Shell, WY
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 2min
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 48min).
Average sunshine days in December
Shell, WY
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in December
Shell, WY
- 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, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Shell, WY
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in December
Shell, WY
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Shell, Wyoming, USA
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