December weather forecastCentralia, WA
December
Weather in December
December, the first month of the winter in Centralia, is still a cold month, with an average temperature ranging between max 42.6°F (5.9°C) and min 33.1°F (0.6°C).Temperature
December is the coldest month, with an average high-temperature of 42.6°F (5.9°C) and an average low-temperature of 33.1°F (0.6°C).Humidity
In Centralia, the average relative humidity in December is 89%.Rainfall
In Centralia, in December, it is raining for 17.9 days, with typically 3.74" (95mm) of accumulated precipitation. In Centralia, during the entire year, the rain falls for 168 days and collects up to 23.94" (608mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Centralia. In Centralia, during December, snow falls for 1.2 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, there are 7.9 snowfall days, and 4.02" (102mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:56 am and sunset at 4:34 pm PST.
Sunshine
With an average of 3.5h of sunshine, December has the least sunshine of the year in Centralia.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 minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Centralia, WA
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in December
Centralia, WA
- Average pressure in December: 30.08"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 (30.02"Hg).
Average wind speed in December
Centralia, WA
- Average wind speed in December: 4.2mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in December
Centralia, WA
- Average humidity in December: 89%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Centralia, WA
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Centralia, WA
- Average rainfall days in December: 17.9 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in December
Centralia, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Centralia, WA
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (2.7 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
Centralia, WA
- Average daylight in December: 8h and 36min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Centralia, WA
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in December
Centralia, 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
Centralia, WA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Centralia, WA
- Average visibility in December: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).
