December weather forecastMount Laguna, CA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Mount Laguna, California, with an average temperature ranging between min 41.9°F (5.5°C) and max 58.1°F (14.5°C).Temperature
Mount Laguna's coldest weather arrives in December, when temperatures average a high of 58.1°F (14.5°C) and a low of 41.9°F (5.5°C).Humidity
The average relative humidity in December is 54%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. In Mount Laguna, California, during the entire year, the rain falls for 67.3 days and collects up to 9.57" (243mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Mount Laguna, in December, snow falls for 0.5 days, with typically accumulated 0.63" (16mm) of snow. In Mount Laguna, during the entire year, snow falls for 2.5 days and aggregates up to 1.73" (44mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:30 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 4:49 pm PST.
Sunshine
With an average of 6.4h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Mount Laguna. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 during December translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mount Laguna, CA
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in December
Mount Laguna, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are June and September (29.85"Hg).
Average wind speed in December
Mount Laguna, CA
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are April and May (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Mount Laguna, CA
- Average humidity in December: 54%
The months with the highest relative humidity are March and May (55%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Mount Laguna, CA
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is February (1.69").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Mount Laguna, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (8.6 days).
The month with the least rainy days is June (1.8 days).
Average snowfall in December
Mount Laguna, CA
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mount Laguna, CA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mount Laguna, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Mount Laguna, CA
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is July (18.8 days).
Average UV index in December
Mount Laguna, CA
- Average UV index in December: 3
The months with the highest UV index are 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
Mount Laguna, CA
- Average cloud cover in December: 28
The month with the most cloud cover is December (Cloud cover 28).
The months with the least cloud cover are June and August (Cloud cover 7).
Average visibility in December
Mount Laguna, 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).
