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
In Rollingbay, Washington, the lowest average temperatures are observed in December, with a high of 43.5°F (6.4°C) and a low of 36.3°F (2.4°C).Humidity
The months with the highest humidity in Rollingbay are January and December, with an average relative humidity of 85%.Rainfall
The month with the most rainfall is December, when the rain falls for 17.5 days and typically aggregates up to 3.58" (91mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Rollingbay, in December, during 1.5 snowfall days, 0.35" (9mm) of snow is typically accumulated. In Rollingbay, during the entire year, snow falls for 8.7 days and aggregates up to 4.25" (108mm) of snow.Daylight
The month with the shortest days in Rollingbay is December, with an average of 8h and 30min of daylight.On the first day of December in Rollingbay, Washington, sunrise is at 7:38 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:28 pm PST.
Sunshine
With an average of 4.3h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rollingbay. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What month is the coldest in Rollingbay?
How cold does it get in Rollingbay in December?
What is the most humid month in Rollingbay?
What is the average humidity in December in Rollingbay?
What is the wettest month in Rollingbay?
How many days does it rain in December in Rollingbay?
How many days does it snow in December in Rollingbay?
What is the month with the shortest days in Rollingbay?
What is the average length of the day in December in Rollingbay?
What time are sunrise and sunset in December in Rollingbay?
What is the month with the least sunshine in Rollingbay?
How many hours of sunshine does Rollingbay have in December?
When is the lowest UV index in Rollingbay?
What is the UV index reading in December in Rollingbay?
Average temperature in December
Rollingbay, WA
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (36.3°F).
Average pressure in December
Rollingbay, WA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in December
Rollingbay, WA
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest months (with the lowest average wind speed) are July and August (3.7mph).
Average humidity in December
Rollingbay, WA
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Rollingbay, WA
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Rollingbay, WA
- Average rainfall days in December: 17.5 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in December
Rollingbay, WA
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rollingbay, WA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.1 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
Rollingbay, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in December
Rollingbay, WA
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in December
Rollingbay, WA
- Average UV index in December: 2
The months with the highest UV index are June and 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
Rollingbay, WA
- Average cloud cover in December: 55
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Rollingbay, WA
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Rollingbay, Washington, USA
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