December weather forecastKaycee, WY
December
Weather in December
Kaycee welcomes December and with it, the chilly onset of winter. The mercury drops with average temperatures hovering between 15.4°F (-9.2°C) and 29.1°F (-1.6°C). Additionally, a notable weather pattern occurs this month, with snowfall reaching up to 2.64" (67mm) over 10.7 days. The short daylight hours and increased cloud cover result in crisp and cold winter days. As December concludes, residents brace themselves for the continuing snowfall and freezing temperatures characteristic of January.Temperature
The arrival of December corresponds with a temperature reduction, down from November's icy 39.4°F (4.1°C) to a subzero cold 29.1°F (-1.6°C). Kaycee witnesses a consistent average low-temperature of 15.4°F (-9.2°C) throughout December.Humidity
The average relative humidity in December in Kaycee, Wyoming, is 71%.Rainfall
December is the month with the least rainfall. Rain falls for 5 days and accumulates 0.47" (12mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Kaycee, in December, during 10.7 snowfall days, 2.64" (67mm) of snow is typically accumulated. In Kaycee, Wyoming, during the entire year, snow falls for 78 days and aggregates up to 39.13" (994mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:39 pm MST.
Sunshine
In Kaycee, the average sunshine in December is 6.5h.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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kaycee, WY
- Average high temperature in December: 29.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (28.9°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (14°F).
Average pressure in December
Kaycee, WY
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Kaycee, WY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Kaycee, WY
- Average humidity in December: 71%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (44%).
Average rainfall in December
Kaycee, WY
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in December
Kaycee, WY
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is December (5 days).
Average snowfall in December
Kaycee, WY
- Average snowfall in December: 2.64"
The month with the highest snowfall is April (7.05").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Kaycee, WY
- Average snowfall days in December: 10.7 days
The month with the highest number of snowfall days is February (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Kaycee, WY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in December
Kaycee, WY
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (5.5 days).
Average UV index in December
Kaycee, 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
Kaycee, WY
- Average cloud cover in December: 31
The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 17).
Average visibility in December
Kaycee, 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).





