December weather forecast
Big Bear Lake, CA

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

The first month of the winter, December, is also a fresh month in Big Bear Lake, California, with temperature in the range of an average low of 37.2°F (2.9°C) and an average high of 52.5°F (11.4°C).

Temperature

December is the coldest month, with an average high-temperature of 52.5°F (11.4°C) and an average low-temperature of 37.2°F (2.9°C).

Humidity

With an average relative humidity of 52%, December is the most humid month.

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 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 in Big Bear Lake, with an average of 9h and 55min of daylight.
On the first day of December in Big Bear Lake, 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.

Sunshine

The month with the least sunshine is December, with an average of 6.9h of sunshine.

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 of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Big Bear Lake?

December is the coldest month in Big Bear Lake, with an average high-temperature of 52.5°F (11.4°C) and an average low-temperature of 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?

The average relative humidity in December in Big Bear Lake is 52%.

What is the wettest month in Big Bear Lake?

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.

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

In Big Bear Lake, California, during December, the rain falls for 4.7 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the snowiest month in Big Bear Lake?

December is the month with the most snowfall. Snow falls for 2.9 days and accumulates 6.54" (166mm) of snow.

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

In Big Bear Lake, California, during December, snow falls for 2.9 days and regularly aggregates up to 6.54" (166mm) of snow.

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

The month with the shortest days in Big Bear Lake is December, with an average of 9h and 55min of daylight.

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

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

When is the sunrise / sunset in December in Big Bear Lake?

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

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

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

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

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

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

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Big Bear Lake, California.

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 value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.

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"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.82").

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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 55min

The month with the longest days is June (Average daylight: 14h and 25min).
The month with the shortest days is December (Average daylight: 9h and 55min).

  • Average sunshine in December: 6.9h

The months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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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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