December weather forecastAlsea, OR
December
Weather in December
December, the first month of the winter in Alsea, is still a chilly month, with an average temperature fluctuating between 44.2°F (6.8°C) and 33.6°F (0.9°C).Temperature
Alsea's December weather, with an average high temperature of 44.2°F (6.8°C) and an average low temperature of 33.6°F (0.9°C), tends to be the coldest of the year.Humidity
The most humid month is December, with an average relative humidity of 90%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.5 days and typically aggregates up to 5.31" (135mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 0.5 days. Throughout December, 0.39" (10mm) of snow is accumulated. Throughout the year, there are 4.9 snowfall days, and 3.35" (85mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:45 pm PST.
Sunshine
In December, the average sunshine in Alsea is 3.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Alsea, OR
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in December
Alsea, OR
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Alsea, OR
- Average wind speed in December: 4.3mph
The windiest months (with the highest average wind speed) are March and April (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Alsea, OR
- Average humidity in December: 90%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Alsea, OR
- Average rainfall in December: 5.31"
The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Alsea, OR
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in December
Alsea, OR
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Alsea, OR
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (2 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
Alsea, 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: 3h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Alsea, OR
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in December
Alsea, OR
- 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
Alsea, OR
- Average cloud cover in December: 64
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Alsea, OR
- Average visibility in December: 4mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
