Weather in December
Temperature
The beginning of December subtly marks a decrease in the average high-temperature, transitioning from a fresh 54.3°F (12.4°C) in November to a chilly 47.7°F (8.7°C). Significant variation from daytime temperatures marks December, with the month recording a nightly average of 21.4°F (-5.9°C).Rainfall
In Big Bear, during December, the rain falls for 5.1 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Big Bear, during the entire year, the rain falls for 43.5 days and collects up to 20.04" (509mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Big Bear, in December, snow falls for 3.3 days, with typically accumulated 12.28" (312mm) of snow. Throughout the year, there are 18 snowfall days, and 72.2" (1834mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:35 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.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
Average temperature in December
Big Bear, CA
- Average high temperature in December: 47.6°F
The warmest month (with the highest average high temperature) is July (81.2°F).
The month with the lowest average high temperature is January (47°F).
- Average low temperature in December: 21.3°F
The month with the highest average low temperature is July (48.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average rainfall in December
Big Bear, CA
- Average rainfall in December: 3"
The wettest month (with the highest rainfall) is January (4.5").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Big Bear, CA
- Average rainfall days in December: 5.1 days
The months with the highest number of rainy days are January and February (6.3 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in December
Big Bear, CA
- Average snowfall in December: 12.3"
The month with the highest snowfall is February (18.1").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Big Bear, CA
- Average snowfall days in December: 3.3 days
The months with the highest number of snowfall days are January and February (3.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December
Big Bear, CA
- Average daylight in December: 9h and 5min
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).
Big Bear, California, USA
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