December weather forecastCarlton, WA
December
Weather in December
December, the first month of the winter in Carlton, is still a freezing cold month, with an average temperature varying between 27.9°F (-2.3°C) and 14.7°F (-9.6°C).Temperature
Carlton records the coldest temperatures in December, averaging a high of 27.9°F (-2.3°C) and a low of 14.7°F (-9.6°C).Humidity
In Carlton, the average relative humidity in December is 90%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.2 days and typically aggregates up to 2.52" (64mm) of precipitation.Snowfall
Months with snowfall in Carlton are January through April, September through December. December is the month with the most snowfall in Carlton. Snow falls for 15.5 days and accumulates 12.28" (312mm) of snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December in Carlton, sunrise is at 7:31 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:16 pm PST.
Sunshine
In Carlton, the average sunshine in December is 4.5h.UV index
In Carlton, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Carlton, WA
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is August (76.8°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in December: 14.7°F
The month with the highest average low temperature is August (48.9°F).
The coldest month (with the lowest average low temperature) is December (14.7°F).
Average pressure in December
Carlton, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in December
Carlton, WA
- Average wind speed in December: 3.5mph
The windiest month (with the highest average wind speed) is July (5.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).
Average humidity in December
Carlton, WA
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in December
Carlton, WA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is December (2.52").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Carlton, WA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in December
Carlton, WA
- Average snowfall in December: 12.28"
The month with the highest snowfall is December (12.28").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Carlton, WA
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is December (15.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Carlton, WA
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h 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: 4h and 12min).
Average sunshine days in December
Carlton, WA
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in December
Carlton, WA
- 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 and November (UV index 1).
Average cloud cover in December
Carlton, WA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Carlton, WA
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





