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, characterized by an average high temperature of 43.9°F (6.6°C) and a low temperature of 34.7°F (1.5°C), is generally the coldest month.Humidity
The months with the highest humidity are November and December, with an average relative humidity of 90%.Rainfall
The wettest months are January and December, with an average 5.04" (128mm) of rainfall.Snowfall
January through March, November and December are months with snowfall. In Central Park, in December, snow falls for 0.6 days, with typically accumulated 0.08" (2mm) of snow. In Central Park, during the entire year, snow falls for 5.1 days and aggregates up to 2.32" (59mm) of snow.Daylight
December has the shortest days of the year in Central Park, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:40 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:35 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.3h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is December?
What is the most humid month?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Central Park have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Central Park, WA
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (43.9°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is February (34.5°F).
Average pressure in December
Central Park, WA
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are January and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in December
Central Park, WA
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in December
Central Park, WA
- Average humidity in December: 90%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Central Park, WA
- Average rainfall in December: 5.04"
The wettest months (with the highest rainfall) are January and December (5.04").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Central Park, WA
- Average rainfall days in December: 18.7 days
The month with the highest number of rainy days is March (19.2 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in December
Central Park, WA
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Central Park, WA
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Central Park, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 18min).
Average sunshine days in December
Central Park, WA
- Average sunshine days in December: 11.1 days
The months with the most sunshine days are July and August (22.1 days).
The month with the least sunshine days is March (10 days).
Average UV index in December
Central Park, 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
Central Park, WA
- Average cloud cover in December: 67
The months with the most cloud cover are January and December (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Central Park, WA
- Average visibility in December: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Central Park, Washington, USA
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