December weather forecast and climate
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
The first month of the winter, December, is also a fresh month in Big Bear Lake, California, with average temperature fluctuating between 37.2°F (2.9°C) and 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

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

Rainfall

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

Snowfall

January through May, November and December are months with snowfall in Big Bear Lake. The month with the most snowfall in Big Bear Lake is December when snow falls for 2.9 days and typically aggregates up to 6.54" (166mm) of snow.

Daylight

The month with the shortest days in Big Bear Lake is December, with an average of 9.9h of daylight.

Sunshine

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

UV index

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. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the coldest month in Big Bear Lake?

The coldest month in Big Bear Lake, California, is December, 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 temperature in December 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?

The most humid month in Big Bear Lake is December, 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%.

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

In December, in Big Bear Lake, the rain falls for 4.7 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

What is the rainiest month in Big Bear Lake?

The month with the most rainfall in Big Bear Lake, California, is December when the rain falls for 4.7 days and typically aggregates up to 1.26" (32mm) of precipitation.

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

In Big Bear Lake, in December, snow falls for 2.9 days, with typically accumulated 6.54" (166mm) of snow.

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.

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

December has the shortest days of the year in Big Bear Lake, California, with an average of 9.9h of daylight.

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

In December, the average length of the day in Big Bear Lake is 9.9h.

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

December has the least sunshine of the year, with an average of 6.9h of sunshine.

How long on average sun shines in December in Big Bear Lake?

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

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

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

How high is the UV index in December in Big Bear Lake?

In Big Bear Lake, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.
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"

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

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").
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).
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: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 6.9h

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).

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

Months with the highest UV index are June and July (UV index 7).
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).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).