December weather forecast
Big Bear Lake, CA

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Big Bear Lake, California, with close rocks amid trees, and mountains in the distance
Big Bear Lake, California, with close rocks amid trees, and mountains in the distance

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

With its high average temperature of 52.5°F (11.4°C) and a low of 37.2°F (2.9°C), December is regarded as the coldest month in Big Bear Lake.

Humidity

The most humid month in Big Bear Lake is December, with an average relative humidity of 52%.

Rainfall

December is the month with the most rainfall in Big Bear Lake. Rain falls for 4.7 days and accumulates 1.26" (32mm) of precipitation.

Snowfall

Months with snowfall in Big Bear Lake, California, are January through May, November and December. December is the month with the most snowfall in Big Bear Lake. Snow falls for 2.9 days and accumulates 6.54" (166mm) of snow.

Daylight

December has the shortest days of the year in Big Bear Lake, California, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:36 am and sunset at 4:37 pm. On the last day of December, in Big Bear Lake, sunrise is at 6:53 am and sunset at 4:48 pm PST.

Sunshine

December has the least sunshine of the year in Big Bear Lake, with an average of 6.9h of sunshine.

UV index

The months with the lowest UV index in Big Bear Lake are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 3 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What is the coldest month in Big Bear Lake?

December, known for its average high temperature of 52.5°F (11.4°C) and an average low temperature of 37.2°F (2.9°C), is the coldest month in Big Bear Lake.

What is the temperature in December in Big Bear Lake?

In Big Bear Lake, in December, the average high-temperature is 52.5°F (11.4°C), and the average low-temperature is 37.2°F (2.9°C).

What is the most humid month in Big Bear Lake?

December is the most humid month in Big Bear Lake, California, with an average relative humidity of 52%.

What is the average humidity in December in Big Bear Lake?

In Big Bear Lake, the average relative humidity in December is 52%.

What is the wettest month in Big Bear Lake?

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.

How much does it rain in Big Bear Lake in December?

In Big Bear Lake, in December, it is raining for 4.7 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it snow the most in Big Bear Lake?

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.

How much does it snow in Big Bear Lake in December?

In December, it is snowing for 2.9 days. Throughout December, 6.54" (166mm) of snow is accumulated.

What is the month with the shortest days in Big Bear Lake?

The month with the shortest days in Big Bear Lake, California, is December, with an average of 9h and 54min of daylight.

What is the average length of the day in December in Big Bear Lake?

The average day length in December in Big Bear Lake, California, is 9h and 55min.

When are sunrise and sunset in December in Big Bear Lake?

On the first day of December in Big Bear Lake, 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.

What is the month with the least sunshine in Big Bear Lake?

The month with the least sunshine in Big Bear Lake is December, with an average of 6.9h of sunshine.

How many hours of sunshine does Big Bear Lake have in December?

In Big Bear Lake, the average sunshine duration in December is 6.9h.

What are the months with the lowest UV index in Big Bear Lake?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the UV index reading in December in Big Bear Lake?

In December, the average daily maximum UV index in Big Bear Lake, California, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Big Bear Lake, CA

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).

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Average pressure in December
Big Bear Lake, CA

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).

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Average wind speed in December
Big Bear Lake, CA

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).

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Average humidity in December
Big Bear Lake, CA

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%).

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Average rainfall in December
Big Bear Lake, CA

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").

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Average rainfall days in December
Big Bear Lake, CA

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).

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Average snowfall in December
Big Bear Lake, CA

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").

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Average snowfall days in December
Big Bear Lake, CA

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).

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Average daylight in December /
Average sunshine in December
Big Bear Lake, CA

Average daylight in December / Average sunshine in December - Big Bear Lake, 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).

  • Average sunshine in December: 6h and 5min

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).

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Average sunshine days in December
Big Bear Lake, CA

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).

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Average UV index in December
Big Bear Lake, CA

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).

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Average cloud cover in December
Big Bear Lake, CA

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).

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Average visibility in December
Big Bear Lake, CA

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).

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Big Bear Lake, California, USA

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