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 sea temperature 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
Temperature readings reach their annual highs in December, averaging 51.3°F (10.7°C) and a minimum average of 43.7°F (6.5°C).Humidity
In December, the average relative humidity 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, the average seawater temperature in December is 52°F (11.1°C).Note: If planning to swim in 52°F (11.1°C) under 50°F (10°C), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 55.4°F (13°C) is not much warmer.
Daylight
The month with the shortest days in Crescent City 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, in Crescent City, sunrise is at 7:43 am and sunset at 4:56 pm PST.
Sunshine
In Crescent City, the average sunshine in December is 5.1h.UV index
In December, the average daily maximum UV index in Crescent City is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 3 transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What month is the coldest in Crescent City?
What is the temperature in December in Crescent City?
What is the average humidity in December in Crescent City?
What is the rainiest month in Crescent City?
How much does it rain in Crescent City in December?
When it does not snow in Crescent City?
What is the water temperature in December in Crescent City?
What is the month with the shortest days in Crescent City?
What is the average length of the day in December in Crescent City?
When is the sunrise / sunset in December in Crescent City?
How many hours of sunshine does Crescent City have in December?
How high is the UV index in December in Crescent City?
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 1min
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 1min
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).
Crescent City, California, USA
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