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 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
The coldest period is December, when temperatures fluctuate between an average high of 62.4°F (16.9°C) and a low of 53.8°F (12.1°C).Humidity
In Wilmington, the average relative humidity in December is 60%.Rainfall
In Wilmington, in December, it is raining for 5.9 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Wilmington, there are 57.9 rainfall days, and 6.65" (169mm) of precipitation is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Wilmington, California.On the first day of the month, sunrise is at 6:40 am and sunset at 4:44 pm. On the last day of December, sunrise is at 6:57 am and sunset at 4:55 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.7h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Wilmington. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in December leads to these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Wilmington?
What is the temperature in December in Wilmington?
What is the average humidity in December in Wilmington?
How much does it rain in Wilmington in December?
What is the month with the shortest days in Wilmington?
How many hours of daylight does Wilmington have in December?
When is the sunrise / sunset in December in Wilmington?
What is the month with the least sunshine in Wilmington?
How many hours of sunshine does Wilmington have in December?
What is the month with the lowest UV index in Wilmington?
How high is the UV index in December in Wilmington?
Average temperature in December
Wilmington, CA
- Average high temperature in December: 62.4°F
The warmest months (with the highest average high temperature) are August and September (75.9°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in December: 53.8°F
The month with the highest average low temperature is September (64.2°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).
Average pressure in December
Wilmington, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in December
Wilmington, CA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in December
Wilmington, CA
- Average humidity in December: 60%
The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (58%).
Average rainfall in December
Wilmington, CA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is January (1.3").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in December
Wilmington, CA
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is August (3 days).
Average daylight in December /
Average sunshine in December
Wilmington, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Wilmington, CA
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is June (17.7 days).
Average UV index in December
Wilmington, CA
- Average UV index in December: 4
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Wilmington, CA
- Average cloud cover in December: 23
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Wilmington, 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).
Wilmington, California, USA
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