December weather forecastWarrenton, OR
December
Weather in December
December, the first month of the winter in Warrenton, is still a chilly month, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 45.5°F (7.5°C).Temperature
The coldest time of the year is December, with temperatures averaging a high of 45.5°F (7.5°C) and a low of 39.9°F (4.4°C).Humidity
In December, the average relative humidity is 82%.Rainfall
December is the month with the most rainfall. Rain falls for 21 days and accumulates 6.54" (166mm) of precipitation.Snowfall
Months with snowfall are January through March, September and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Warrenton, during the entire year, snow falls for 3.3 days and aggregates up to 1.54" (39mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:38 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:58 am and sunset at 4:40 pm PST.
Sunshine
In December, the average sunshine is 4.1h.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 vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To protect against the Sun's most potent rays, avoid direct exposure around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Warrenton, OR
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in December: 39.9°F
The month with the highest average low temperature is August (54.5°F).
The coldest months (with the lowest average low temperature) are February and December (39.9°F).
Average pressure in December
Warrenton, OR
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in December
Warrenton, OR
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Warrenton, OR
- Average humidity in December: 82%
The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is May (81%).
Average rainfall in December
Warrenton, OR
- Average rainfall in December: 6.54"
The wettest month (with the highest rainfall) is December (6.54").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in December
Warrenton, OR
- Average rainfall days in December: 21 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.1 days).
Average snowfall in December
Warrenton, OR
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, October and November (0").
Average snowfall days in December
Warrenton, OR
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Warrenton, OR
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Warrenton, OR
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is August (20.5 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Warrenton, OR
- Average UV index in December: 2
The month with the highest UV index is 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
Warrenton, OR
- Average cloud cover in December: 56
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Warrenton, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
