December weather forecastWeston, WY
December
Weather in December
December, the first month of the winter in Weston, is also a subzero cold month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 17.2°F (-8.2°C).Temperature
Weston's December weather, marked by an average high temperature of 29.7°F (-1.3°C) and an average low temperature of 17.2°F (-8.2°C), is the coldest in the year.Humidity
The average relative humidity in December is 75%.Rainfall
In December, the rain falls for 1.8 days. Throughout December, 0.43" (11mm) of precipitation is accumulated. Throughout the year, there are 108.9 rainfall days, and 15.59" (396mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Weston, Wyoming, during December, snow falls for 6.2 days and regularly aggregates up to 1.81" (46mm) of snow. Throughout the year, in Weston, there are 50.5 snowfall days, and 19.53" (496mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:31 pm MST.
Sunshine
In Weston, the average sunshine in December is 5.9h.UV index
The months with the lowest UV index are January, February, April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Weston, WY
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in December: 17.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in December
Weston, WY
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Weston, WY
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity in December
Weston, WY
- Average humidity in December: 75%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Weston, WY
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Weston, WY
- Average rainfall days in December: 1.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in December
Weston, WY
- Average snowfall in December: 1.81"
The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Weston, WY
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Weston, WY
- Average daylight in December: 8h and 54min
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 54min
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 36min).
Average sunshine days in December
Weston, WY
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in December
Weston, WY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).
Average cloud cover in December
Weston, WY
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Weston, WY
- 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).
