December weather forecastCrescent City, CA
December
Weather in December
December, the first month of the winter in Crescent City, is also a fresh month, with an average temperature varying between 43.7°F (6.5°C) and 51.3°F (10.7°C).Temperature
In Crescent City, California, the lowest average temperatures are observed in December, with a high of 51.3°F (10.7°C) and a low of 43.7°F (6.5°C).Humidity
In Crescent City, the average relative humidity in December is 78%.Rainfall
December is the month with the most rainfall in Crescent City. Rain falls for 17.5 days and accumulates 8.15" (207mm) of precipitation.Snowfall
January, March through August, October through December are months without snowfall.Ocean temperature
In Crescent City, in December, the average water temperature is 52°F (11.1°C).Note: Without suitable protection, venturing into 52°F (11.1°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths.
Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:56 pm PST.
Sunshine
The average sunshine in December is 5.1h.UV index
In Crescent City, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Crescent City, CA
- Average high temperature in December: 51.3°F
The warmest month (with the highest average high temperature) is August (68°F).
The month with the lowest average high temperature is December (51.3°F).
- Average low temperature in December: 43.7°F
The months with the highest average low temperature are July and August (54.1°F).
The coldest month (with the lowest average low temperature) is February (43.2°F).
Average pressure in December
Crescent City, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in December
Crescent City, CA
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is June (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in December
Crescent City, CA
- Average humidity in December: 78%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (76%).
Average rainfall in December
Crescent City, CA
- Average rainfall in December: 8.15"
The wettest month (with the highest rainfall) is December (8.15").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Crescent City, CA
- Average rainfall days in December: 17.5 days
The month with the highest number of rainy days is March (18.7 days).
The month with the least rainy days is July (2.4 days).
Average snowfall in December
Crescent City, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are January, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in December
Crescent City, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, October and November (0 days).
Average sea temperature in December
Crescent City, CA
- Average sea temperature in December: 52°F
The best month for swimming (with the highest average sea temperature) is October (52.6°F).
The coldest month (with the lowest average sea temperature) is April (50.7°F).
Average daylight in December /
Average sunshine in December
Crescent City, CA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 6min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Crescent City, CA
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is July (27.8 days).
The month with the least sunshine days is March (10.8 days).
Average UV index in December
Crescent City, CA
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in December
Crescent City, CA
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Crescent City, CA
- 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).
