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 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
College City, California, witnesses the coldest weather in December, with temperatures averaging a high of 54.3°F (12.4°C) and a low of 41.7°F (5.4°C).Humidity
In December, the average relative humidity is 68%.Rainfall
In College City, in December, during 10.7 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In College City, California, during the entire year, the rain falls for 70.9 days and collects up to 12.13" (308mm) of precipitation.Snowfall
January, March through December are months without snowfall in College City.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:56 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.7h of sunshine.UV index
The months with the lowest UV index in College City are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 3 translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in College City?
What are December temperatures in College City?
What is the average humidity in December in College City?
How much does it rain in College City in December?
When it does not snow in College City?
What is the month with the shortest days in College City?
How many hours of daylight does College City have in December?
What time are sunrise and sunset in December in College City?
What is the month with the least sunshine in College City?
How many hours of sunshine does College City have in December?
What are the months with the lowest UV index in College City?
What is the UV index intensity in December in College City?
Average temperature in December
College City, CA
- Average high temperature in December: 54.3°F
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in December: 41.7°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (41.7°F).
Average pressure in December
College City, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
College City, CA
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
College City, CA
- Average humidity in December: 68%
The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is September (38%).
Average rainfall in December
College City, CA
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is February (2.44").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
College City, CA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is July (0.8 days).
Average snowfall days in December
College City, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
College City, CA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
College City, CA
- Average sunshine days in December: 19.6 days
The months with the most sunshine days are July and August (29.6 days).
The month with the least sunshine days is March (17.2 days).
Average UV index in December
College City, CA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
College City, CA
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
College 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).
College City, California, USA
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