Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Arch Cape, the lowest average temperatures are observed in December, with a high of 46.6°F (8.1°C) and a low of 40.5°F (4.7°C).Humidity
The months with the lowest humidity are January, March through May, October and December, with an average relative humidity of 81%.Rainfall
December is the month with the most rainfall. Rain falls for 20.7 days and accumulates 6.54" (166mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows in Arch Cape. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 2.8 snowfall days, and 1.3" (33mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 4:32 pm. On the last day of December, in Arch Cape, sunrise is at 7:56 am and sunset at 4:41 pm PST.
Sunshine
In Arch Cape, 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 in Arch Cape. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the coldest month in Arch Cape?
What is the average December temperature in Arch Cape?
What is the least humid month in Arch Cape?
What is the average humidity in December in Arch Cape?
What is the wettest month in Arch Cape?
How much does it rain in Arch Cape in December?
When does it start to snow in Arch Cape?
What is the month with the shortest days in Arch Cape?
What is the average length of the day in December in Arch Cape?
What time are sunrise and sunset in December in Arch Cape?
How many hours of sunshine does Arch Cape have in December?
What are the months with the lowest UV index in Arch Cape?
How high is the UV index in December in Arch Cape?
Average temperature in December
Arch Cape, OR
- Average high temperature in December: 46.6°F
The warmest month (with the highest average high temperature) is August (65.5°F).
The month with the lowest average high temperature is December (46.6°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in December
Arch Cape, 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
Arch Cape, OR
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Arch Cape, OR
- Average humidity in December: 81%
The month with the highest relative humidity is August (84%).
The months with the lowest relative humidity are January, March, April, May, October and December (81%).
Average rainfall in December
Arch Cape, OR
- Average rainfall in December: 6.54"
The wettest month (with the highest rainfall) is December (6.54").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in December
Arch Cape, OR
- Average rainfall days in December: 20.7 days
The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are July and August (7.3 days).
Average snowfall in December
Arch Cape, OR
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Arch Cape, 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, September and October (0 days).
Average daylight in December /
Average sunshine in December
Arch Cape, OR
- Average daylight in December: 8h and 4min
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 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in December
Arch Cape, OR
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in December
Arch Cape, OR
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Arch Cape, 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
Arch Cape, 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).
Arch Cape, Oregon, USA
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