December weather forecastWesley Junction, WA
December
Weather in December
December, the first month of the winter in Wesley Junction, is also an icy month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 36.7°F (2.6°C).Temperature
December is the month when Wesley Junction sees the lowest average temperatures, with a high of 36.7°F (2.6°C) and a low of 25.7°F (-3.5°C).Humidity
In Wesley Junction, Washington, the average relative humidity in December is 81%.Rainfall
In Wesley Junction, in December, it is raining for 10.5 days, with typically 0.87" (22mm) of accumulated precipitation. In Wesley Junction, during the entire year, the rain falls for 98.5 days and collects up to 6.97" (177mm) of precipitation.Snowfall
Months with snowfall in Wesley Junction are January through March, September, November and December. In Wesley Junction, Washington, during December, snow falls for 5 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, there are 17.1 snowfall days, and 6.69" (170mm) of snow is accumulated.Daylight
The month with the shortest days in Wesley Junction is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:24 pm PST.
Sunshine
In Wesley Junction, the average sunshine in December is 5.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wesley Junction. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wesley Junction, WA
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (36.7°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure in December
Wesley Junction, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in December
Wesley Junction, WA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in December
Wesley Junction, WA
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (38%).
Average rainfall in December
Wesley Junction, WA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Wesley Junction, WA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in December
Wesley Junction, WA
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Wesley Junction, WA
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is December (5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Wesley Junction, WA
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 42min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Wesley Junction, WA
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in December
Wesley Junction, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Wesley Junction, WA
- Average cloud cover in December: 40
The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Wesley Junction, WA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
