December weather forecastLake Los Angeles, CA
December
Weather in December
December, the first month of the winter in Lake Los Angeles, is also a fresh month, with an average temperature fluctuating between 38.1°F (3.4°C) and 54.5°F (12.5°C).Temperature
The coldest period is December, when temperatures fluctuate between an average high of 54.5°F (12.5°C) and a low of 38.1°F (3.4°C).Humidity
The most humid month is December, with an average relative humidity of 54%.Rainfall
The month with the most rainfall is December, when the rain falls for 4.4 days and typically aggregates up to 1.14" (29mm) of precipitation.Snowfall
February, March, November and December are months with snowfall. December is the month with the most snowfall in Lake Los Angeles. Snow falls for 0.1 days and accumulates 1.81" (46mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:40 am and sunset at 4:40 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:51 pm PST.
Sunshine
In December, the average sunshine is 6.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 in December translates into these instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lake Los Angeles, CA
- Average high temperature in December: 54.5°F
The warmest months (with the highest average high temperature) are July and August (91°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in December: 38.1°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in December
Lake Los Angeles, CA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Lake Los Angeles, CA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is May (9.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in December
Lake Los Angeles, CA
- Average humidity in December: 54%
The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is August (33%).
Average rainfall in December
Lake Los Angeles, CA
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Lake Los Angeles, CA
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in December
Lake Los Angeles, CA
- Average snowfall in December: 1.81"
The month with the highest snowfall is December (1.81").
The months with the least snowfall are January, April, May, June, July, August, September and October (0").
Average snowfall days in December
Lake Los Angeles, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Lake Los Angeles, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in December
Lake Los Angeles, CA
- Average sunshine days in December: 25.9 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (23.3 days).
Average UV index in December
Lake Los Angeles, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Lake Los Angeles, CA
- Average cloud cover in December: 22
The month with the most cloud cover is December (Cloud cover 22).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in December
Lake Los Angeles, 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).
