December weather forecastWashougal, WA
December
Weather in December
December, the first month of the winter in Washougal, is also a frosty month, with an average temperature varying between 43.3°F (6.3°C) and 33.3°F (0.7°C).Temperature
December tends to be the coldest month, with temperatures averaging a daily high of 43.3°F (6.3°C) and a low of 33.3°F (0.7°C).Humidity
The average relative humidity in December in Washougal, Washington, is 83%.Rainfall
December is the month with the most rainfall in Washougal. Rain falls for 19 days and accumulates 5.63" (143mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Washougal, in December, snow falls for 0.9 days, with typically accumulated 0.51" (13mm) of snow. In Washougal, during the entire year, snow falls for 6.3 days and aggregates up to 4.37" (111mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December in Washougal, sunrise is at 7:30 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 4:35 pm PST.
Sunshine
The average sunshine in December in Washougal is 4.2h.UV index
The months with the lowest UV index in Washougal are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Washougal, WA
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in December
Washougal, WA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Washougal, WA
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in December
Washougal, WA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Washougal, WA
- Average rainfall in December: 5.63"
The wettest month (with the highest rainfall) is December (5.63").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in December
Washougal, WA
- Average rainfall days in December: 19 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in December
Washougal, WA
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Washougal, WA
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Washougal, WA
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Washougal, WA
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in December
Washougal, 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, November and December (UV index 2).
Average cloud cover in December
Washougal, WA
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Washougal, WA
- Average visibility in December: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
