December weather forecastClallam Bay, WA
December
Weather in December
The first month of the winter, December, is still a cold month in Clallam Bay, Washington, with an average temperature ranging between min 36.3°F (2.4°C) and max 42.4°F (5.8°C).Temperature
In Clallam Bay, the month of December is known for its lowest average temperatures, reaching a high of 42.4°F (5.8°C) and a low of 36.3°F (2.4°C).Humidity
January and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In Clallam Bay, in December, it is raining for 15.9 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, there are 142.6 rainfall days, and 19.61" (498mm) of precipitation is accumulated.Snowfall
January through April, September and December are months with snowfall in Clallam Bay. December is the first month it typically snows. Throughout December, in the average 0.8 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 5.1 snowfall days, and 2.17" (55mm) of snow is accumulated.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:47 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 4:33 pm PST.
Sunshine
In Clallam Bay, the average sunshine in December is 4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clallam Bay, WA
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (42.4°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is February (36°F).
Average pressure in December
Clallam Bay, WA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is July (30.07"Hg).
The month with the lowest atmospheric pressure is March (29.98"Hg).
Average wind speed in December
Clallam Bay, WA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Clallam Bay, WA
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are May, July and August (80%).
Average rainfall in December
Clallam Bay, WA
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is January (3.66").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Clallam Bay, WA
- Average rainfall days in December: 15.9 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in December
Clallam Bay, WA
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, October and November (0").
Average snowfall days in December
Clallam Bay, WA
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Clallam Bay, 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 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Clallam Bay, WA
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is July (23 days).
The month with the least sunshine days is November (11.7 days).
Average UV index in December
Clallam Bay, WA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Clallam Bay, WA
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Clallam Bay, WA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, October, November and December (6mi).
The months with the lowest visibility are January, May, June, July, August and September (5mi).
