Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The lowest temperatures are recorded in December, with averages reaching a high of 43.7°F (6.5°C) and a low of 39°F (3.9°C).Humidity
In December, the average relative humidity is 79%.Rainfall
In Shelter Bay, in December, it is raining for 13.7 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 132.4 rainfall days, and 8.9" (226mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, in Shelter Bay, it is snowing for 1.5 days. Throughout December, 0.2" (5mm) of snow is accumulated. Throughout the year, in Shelter Bay, Washington, there are 7.6 snowfall days, and 3.27" (83mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:41 am and sunset at 4:17 pm. On the last day of December, in Shelter Bay, sunrise is at 8:01 am and sunset at 4:25 pm PST.
Sunshine
January and December, with an average of 4.5h of sunshine, are months with the least sunshine in Shelter Bay.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What part of the year is the coldest in Shelter Bay?
How cold is it in Shelter Bay in December?
What is the average humidity in December in Shelter Bay?
How many days does it rain in December in Shelter Bay?
How many days does it snow in December in Shelter Bay?
What is the month with the shortest days in Shelter Bay?
How many hours of daylight does Shelter Bay have in December?
When is the sunrise / sunset in December in Shelter Bay?
What are the months with the least sunshine in Shelter Bay?
How long on average sun shines in December in Shelter Bay?
What are the months with the lowest UV index in Shelter Bay?
What is the UV index intensity in December in Shelter Bay?
Average temperature in December
Shelter Bay, WA
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (66.6°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in December: 39°F
The month with the highest average low temperature is August (56.1°F).
The coldest month (with the lowest average low temperature) is February (38.5°F).
Average pressure in December
Shelter Bay, WA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in December
Shelter Bay, WA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Shelter Bay, WA
- Average humidity in December: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Shelter Bay, WA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Shelter Bay, WA
- Average rainfall days in December: 13.7 days
The month with the highest number of rainy days is December (13.7 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in December
Shelter Bay, WA
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Shelter Bay, WA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.4 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
Shelter Bay, WA
- Average daylight in December: 8h and 2min
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 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in December
Shelter Bay, WA
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in December
Shelter Bay, 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
Shelter Bay, WA
- Average cloud cover in December: 53
The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Shelter Bay, 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).
Shelter Bay, Washington, USA
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