December weather forecastChimacum, WA
December
Weather in December
December, the first month of the winter in Chimacum, is also a frosty month, with an average temperature ranging between min 37.6°F (3.1°C) and max 43°F (6.1°C).Temperature
In Chimacum, the lowest average temperatures are observed in December, with a high of 43°F (6.1°C) and a low of 37.6°F (3.1°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Chimacum, in December, it is raining for 18.2 days, with typically 2.52" (64mm) of accumulated precipitation. In Chimacum, during the entire year, the rain falls for 180.3 days and collects up to 21.85" (555mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Chimacum, during December, snow falls for 1 days and regularly aggregates up to 0.2" (5mm) of snow. In Chimacum, during the entire year, snow falls for 7.8 days and aggregates up to 4.84" (123mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December in Chimacum, sunrise is at 7:40 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:28 pm PST.
Sunshine
In December, the average sunshine in Chimacum, Washington, is 4.9h.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Keep in mind! Snow's reflective quality can nearly 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
Chimacum, WA
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in December: 37.6°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).
Average pressure in December
Chimacum, WA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.01"Hg).
Average wind speed in December
Chimacum, WA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is November (7.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Chimacum, 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 (75%).
Average rainfall in December
Chimacum, WA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is November (2.91").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
Chimacum, WA
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.6 days).
Average snowfall in December
Chimacum, WA
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chimacum, WA
- Average snowfall days in December: 1 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
Chimacum, WA
- Average daylight in December: 8h and 30min
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 30min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Chimacum, WA
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.2 days).
Average UV index in December
Chimacum, 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
Chimacum, WA
- Average cloud cover in December: 50
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Chimacum, 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).
