December weather forecastFarson, WY
December
Weather in December
December, the peak of winter in Farson, Wyoming, offers residents a classic cold winter holiday season. With noticeably colder winter temperatures, hovering from 5.9°F (-14.5°C) to 23.9°F (-4.5°C), Farson experiences increased snowfall. Lengthy nights and shorter daylight hours are compensated by the joy of the holiday season festivities. Despite the decreased visibility and heavy snowfall, the residents find joy in the exquisite landscape brought by the winter. Thus, the year concludes with the city wrapped in a beautiful, snowy blanket.Temperature
In Farson, December is the coldest month, with temperatures averaging a high of 23.9°F (-4.5°C) and a low of 5.9°F (-14.5°C).Humidity
The average relative humidity in December is 83%.Rainfall
In Farson, in December, it is raining for 7.2 days, with typically 0.55" (14mm) of accumulated precipitation. In Farson, during the entire year, the rain falls for 102.6 days and collects up to 10.75" (273mm) of precipitation.Snowfall
Months with snowfall in Farson are January through June, September through December. In Farson, in December, during 13.5 snowfall days, 4.33" (110mm) of snow is typically accumulated. In Farson, during the entire year, snow falls for 86.8 days and aggregates up to 41.77" (1061mm) of snow.Daylight
The month with the shortest days in Farson is December, with an average of 9h and 12min of daylight.On the first day of December in Farson, sunrise is at 7:27 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:56 pm MST.
Sunshine
The average sunshine in December in Farson is 6.5h.UV index
The months with the lowest UV index in Farson, Wyoming, are January through April, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Warning! The reflection from snow can nearly magnify 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
Farson, WY
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (23.9°F).
- Average low temperature in December: 5.9°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Farson, WY
- Average pressure in December: 30.24"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Farson, WY
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in December
Farson, WY
- Average humidity in December: 83%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (34%).
Average rainfall in December
Farson, WY
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in December
Farson, WY
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Farson, WY
- Average snowfall in December: 4.33"
The month with the highest snowfall is February (7.32").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Farson, WY
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is March (15.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Farson, 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: 6h and 30min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in December
Farson, WY
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in December
Farson, WY
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Farson, WY
- Average cloud cover in December: 34
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in December
Farson, 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).





