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
December, with average temperatures reaching a high of 43.2°F (6.2°C) and a low of 36.3°F (2.4°C), is the coldest month.Humidity
The months with the highest humidity in Keyport, Washington, are January and December, with an average relative humidity of 85%.Rainfall
In December, the rain falls for 17.7 days. Throughout December, 3.23" (82mm) of precipitation is accumulated. In Keyport, during the entire year, the rain falls for 179.1 days and collects up to 24.57" (624mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Keyport, in December, during 1 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Keyport, during the entire year, snow falls for 7.7 days and aggregates up to 4.25" (108mm) of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:39 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
January and December, with an average of 4.8h of sunshine, are months with the least sunshine in Keyport.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Keyport. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 in December translates into these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What part of the year is the coldest in Keyport?
Is it cold in Keyport during December?
What are the most humid months in Keyport?
What is the average humidity in December in Keyport?
How many days does it rain in December in Keyport?
How much does it snow in Keyport in December?
What is the month with the shortest days in Keyport?
How many hours of daylight does Keyport have in December?
When is the sunrise / sunset in December in Keyport?
What is the month with the least sunshine in Keyport?
How long on average sun shines in December in Keyport?
When is the lowest UV index in Keyport?
How high is the UV index in December in Keyport?
Average temperature in December
Keyport, WA
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is December (43.2°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (36.1°F).
Average pressure in December
Keyport, 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
Keyport, WA
- Average wind speed in December: 5.3mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in December
Keyport, WA
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Keyport, WA
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is January (3.74").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
Keyport, WA
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Keyport, WA
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Keyport, 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
Keyport, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Keyport, WA
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in December
Keyport, 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
Keyport, WA
- Average cloud cover in December: 51
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Keyport, WA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Keyport, Washington, USA
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