December weather forecastKemmerer, WY
December
Weather in December
Concluding the year, December welcomes the stark winter season in Kemmerer, with average temperatures dropping further from those in November. The volume of snowfall dramatically increases to an impressive 4.84" (123mm) over 13.5 days, marking the upcoming winter month of January. An average of 9.2 hours of daylight illuminates Kemmerer, the shortest span in the year. With a relatively constant wind speed from November, the winter chill becomes more pronounced. Overall, the weather in December envelopes Kemmerer in a classic winter wonderland setting, perfect for holiday celebrations.Temperature
December stands out as Kemmerer's coldest month, with an average high-temperature of 25.7°F (-3.5°C) and a low-temperature of 10°F (-12.2°C).Humidity
In Kemmerer, the average relative humidity in December is 85%.Rainfall
In Kemmerer, during December, the rain falls for 6.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 96.8 rainfall days, and 11.46" (291mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Kemmerer, in December, snow falls for 13.5 days, with typically accumulated 4.84" (123mm) of snow. In Kemmerer, during the entire year, snow falls for 88.9 days and aggregates up to 38.86" (987mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:01 pm MST.
Sunshine
The average sunshine in December is 5.9h.UV index
The months with the lowest UV index 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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kemmerer, WY
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 10°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Kemmerer, WY
- Average pressure in December: 30.24"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Kemmerer, WY
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Kemmerer, WY
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).
Average rainfall in December
Kemmerer, WY
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days in December
Kemmerer, WY
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in December
Kemmerer, WY
- Average snowfall in December: 4.84"
The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Kemmerer, WY
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Kemmerer, 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 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in December
Kemmerer, WY
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).
Average UV index in December
Kemmerer, 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
Kemmerer, WY
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Kemmerer, 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).
