December weather forecastPort Orford, OR
December
Weather in December
The first month of the winter, December, is still a cool month in Port Orford, Oregon, with temperature in the range of an average low of 43.9°F (6.6°C) and an average high of 50.7°F (10.4°C).Temperature
Port Orford marks the start of December with an average high-temperature of a still cool 50.7°F (10.4°C), hinting at a slight fluctuation from November's 54.7°F (12.6°C). A consistent average low of 43.9°F (6.6°C) is noted throughout December, only a small step down from its daytime high.Humidity
The average relative humidity in December is 79%.Rainfall
The month with the most rainfall is December, when the rain falls for 14.8 days and typically aggregates up to 3.82" (97mm) of precipitation.Snowfall
January, March through December are months without snowfall.Ocean temperature
In Port Orford, the average seawater temperature in December is 51.6°F (10.9°C).Note: With an efficient thermal swimsuit, one can navigate 51.6°F (10.9°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:29 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:54 pm PST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 3 in December leads to these recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Port Orford, OR
- Average high temperature in December: 50.7°F
The warmest month (with the highest average high temperature) is August (66.7°F).
The month with the lowest average high temperature is February (50.5°F).
- Average low temperature in December: 43.9°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is March (43.5°F).
Average pressure in December
Port Orford, 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
Port Orford, OR
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is June (11.6mph).
The calmest month (with the lowest average wind speed) is September (9.1mph).
Average humidity in December
Port Orford, OR
- Average humidity in December: 79%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is September (78%).
Average rainfall in December
Port Orford, OR
- Average rainfall in December: 3.82"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Port Orford, OR
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (1.3 days).
Average snowfall in December
Port Orford, OR
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Port Orford, OR
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Port Orford, OR
- Average sea temperature in December: 51.6°F
The best month for swimming (with the highest average sea temperature) is July (54.9°F).
The coldest months (with the lowest average sea temperature) are February and March (50.5°F).
Average daylight in December /
Average sunshine in December
Port Orford, OR
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Port Orford, OR
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in December
Port Orford, OR
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in December
Port Orford, OR
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Port Orford, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
