December weather forecastPrevost, WA
December
Weather in December
The first month of the winter, December, is still a chilly month in Prevost, Washington, with an average temperature varying between 43.3°F (6.3°C) and 38.3°F (3.5°C).Temperature
The coldest time of the year is December, with temperatures averaging a high of 43.3°F (6.3°C) and a low of 38.3°F (3.5°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Prevost, in December, during 8.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Prevost, during the entire year, the rain falls for 72.5 days and collects up to 6.42" (163mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Prevost, Washington, in December, snow falls for 1.4 days, with typically accumulated 0.2" (5mm) of snow. In Prevost, during the entire year, snow falls for 6.8 days and aggregates up to 3.66" (93mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 24min of daylight.On the first day of December, sunrise is at 7:45 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:27 pm PST.
Sunshine
January and December, with an average of 4.5h of sunshine, are months with the least sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. On your guard! Snow's reflection 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
Prevost, WA
- Average high temperature in December: 43.3°F
The warmest months (with the highest average high temperature) are July and August (68.4°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is February (37.9°F).
Average pressure in December
Prevost, WA
- Average pressure in December: 30.05"Hg
The months with the highest atmospheric pressure are January and July (30.06"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).
Average wind speed in December
Prevost, WA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is November (7.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Prevost, WA
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Prevost, WA
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is January (1.46").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in December
Prevost, WA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is December (8.6 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in December
Prevost, WA
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Prevost, WA
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Prevost, WA
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in December
Prevost, WA
- Average sunshine days in December: 20 days
The month with the most sunshine days is August (28.2 days).
The month with the least sunshine days is February (17.4 days).
Average UV index in December
Prevost, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Prevost, WA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in December
Prevost, WA
- 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).
