December weather forecastBig Bear Lake, CA
December
Weather in December
By December, the winter season has fully set in at Big Bear Lake, with temperatures dropping further. Snowfall is significant again at 6.54" (166mm) on an average of 2.9 days, setting the city abuzz with winter activities. Despite the colder temperatures, the holiday spirit in the city completely takes over, offering locals and tourists an enchanted winter wonderland experience. Despite being the end of the year, December brings a new beginning in Big Bear Lake's weather cycle.Temperature
December is the month when Big Bear Lake sees the lowest average temperatures, with a high of 52.5°F (11.4°C) and a low of 37.2°F (2.9°C).Humidity
December is the most humid month, with an average relative humidity of 52%.Rainfall
The month with the most rainfall in Big Bear Lake is December, when the rain falls for 4.7 days and typically aggregates up to 1.26" (32mm) of precipitation.Snowfall
Months with snowfall in Big Bear Lake are January through May, November and December. The month with the most snowfall is December, when snow falls for 2.9 days and typically aggregates up to 6.54" (166mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:36 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:48 pm PST.
Sunshine
With an average of 6.9h of sunshine, December has the least sunshine of the year.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 estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Big Bear Lake, CA
- Average high temperature in December: 52.5°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in December: 37.2°F
The month with the highest average low temperature is August (66.9°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure in December
Big Bear Lake, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Big Bear Lake, CA
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in December
Big Bear Lake, CA
- Average humidity in December: 52%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is August (29%).
Average rainfall in December
Big Bear Lake, CA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is December (1.26").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in December
Big Bear Lake, CA
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is July (5 days).
The month with the least rainy days is June (1.4 days).
Average snowfall in December
Big Bear Lake, CA
- Average snowfall in December: 6.54"
The month with the highest snowfall is December (6.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Big Bear Lake, CA
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Big Bear Lake, 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 December (Average sunshine: 6h and 54min).
Average sunshine days in December
Big Bear Lake, CA
- Average sunshine days in December: 24 days
The month with the most sunshine days is June (28.1 days).
The month with the least sunshine days is February (22.2 days).
Average UV index in December
Big Bear Lake, 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
Big Bear Lake, CA
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June, August and September (Cloud cover 6).
Average visibility in December
Big Bear Lake, 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).
