December weather forecastOrient, WA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Orient, Washington, with temperature in the range of an average high of 28.9°F (-1.7°C) and an average low of 16.9°F (-8.4°C).Temperature
December, characterized by an average high temperature of 28.9°F (-1.7°C) and a low temperature of 16.9°F (-8.4°C), is generally the coldest month.Humidity
In December, the average relative humidity is 91%.Rainfall
In December, in Orient, the rain falls for 11.7 days. Throughout December, 1.61" (41mm) of precipitation is accumulated. In Orient, during the entire year, the rain falls for 156.3 days and collects up to 16.18" (411mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. In Orient, Washington, during December, snow falls for 13.7 days and regularly aggregates up to 6.5" (165mm) of snow. In Orient, during the entire year, snow falls for 53.2 days and aggregates up to 25.16" (639mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 3:58 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:06 pm PST.
Sunshine
In December, the average sunshine is 4.3h.UV index
The months with the lowest UV index in Orient are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 suggests this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Orient, WA
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 16.9°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is February (16°F).
Average pressure in December
Orient, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Orient, WA
- Average wind speed in December: 3mph
The windiest month (with the highest average wind speed) is April (3.9mph).
The calmest months (with the lowest average wind speed) are January, February and December (3mph).
Average humidity in December
Orient, WA
- Average humidity in December: 91%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (50%).
Average rainfall in December
Orient, WA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in December
Orient, WA
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in December
Orient, WA
- Average snowfall in December: 6.5"
The month with the highest snowfall is January (6.61").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Orient, WA
- Average snowfall days in December: 13.7 days
The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Orient, WA
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Orient, WA
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is March (9 days).
Average UV index in December
Orient, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Orient, WA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Orient, WA
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
