December weather forecastSalishan, OR
December
Weather in December
December, the first month of the winter in Salishan, is still a chilly month, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 47.7°F (8.7°C).Temperature
Salishan's coldest month, December, registers temperatures that range from a high of 47.7°F (8.7°C) to a low of 40.6°F (4.8°C).Humidity
The months with the highest humidity in Salishan, Oregon, are February, March, November and December, with an average relative humidity of 83%.Rainfall
The month with the most rainfall is December, when the rain falls for 16.5 days and typically aggregates up to 3.07" (78mm) of precipitation.Snowfall
In Salishan, snow does not fall in March through October and December.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:34 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 4:45 pm PST.
Sunshine
The average sunshine in December is 4.2h.UV index
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 unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Salishan, OR
- Average high temperature in December: 47.7°F
The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (47.7°F).
- Average low temperature in December: 40.6°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (40.6°F).
Average pressure in December
Salishan, OR
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is September (30.02"Hg).
Average wind speed in December
Salishan, OR
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Salishan, OR
- Average humidity in December: 83%
The months with the highest relative humidity are February, March, November and December (83%).
The months with the lowest relative humidity are April, May, July, September and October (81%).
Average rainfall in December
Salishan, OR
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Salishan, OR
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is August (3.7 days).
Average snowfall in December
Salishan, OR
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Salishan, OR
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Salishan, OR
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).
Average sunshine days in December
Salishan, OR
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in December
Salishan, 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 February, November and December (UV index 2).
Average cloud cover in December
Salishan, OR
- Average cloud cover in December: 56
The months with the most cloud cover are February and March (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Salishan, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
