December weather forecast
Carnelian Bay, CA

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Weather in December

The first month of the winter, December, is still a cold month in Carnelian Bay, California, with an average temperature fluctuating between 36.5°F (2.5°C) and 21.4°F (-5.9°C).

Temperature

December is the coldest month, with the temperature often reaching an average high of 36.5°F (2.5°C) and an average low of 21.4°F (-5.9°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Carnelian Bay, during December, the rain falls for 4.9 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Carnelian Bay, during the entire year, the rain falls for 46.9 days and collects up to 17.28" (439mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Carnelian Bay, in December, during 12.9 snowfall days, 20.47" (520mm) of snow is typically accumulated. In Carnelian Bay, during the entire year, snow falls for 65.4 days and aggregates up to 93.39" (2372mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:47 pm PST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Carnelian Bay?

Temperature readings reach their annual highs in December, averaging 36.5°F (2.5°C) and a minimum average of 21.4°F (-5.9°C).

How cold is December?

The high-temperature, in December, in Carnelian Bay, records 36.5°F (2.5°C), while the low-temperature is 21.4°F (-5.9°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How many days does it rain in December?

In Carnelian Bay, in December, it is raining for 4.9 days, with typically 3.11" (79mm) of accumulated precipitation.

How many days does it snow in December?

In Carnelian Bay, in December, during 12.9 snowfall days, 20.47" (520mm) of snow is typically accumulated.

What is the month with the shortest days in Carnelian Bay?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does Carnelian Bay have in December?

In December, the average day length is 9h and 28min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:01 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:47 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.7h of sunshine.

How long on average sun shines in December?

In Carnelian Bay, the average sunshine duration in December is 5.7h.

When is the lowest UV index in Carnelian Bay?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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
Carnelian Bay, CA

Average temperature in December - Carnelian Bay, CA
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in December: 21.4°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).

Average pressure in December
Carnelian Bay, CA

Average pressure in December - Carnelian Bay, CA
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Carnelian Bay, CA

Average wind speed in December - Carnelian Bay, CA
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Carnelian Bay, CA

Average humidity in December - Carnelian Bay, CA
  • Average humidity in December: 76%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is August (39%).

Average rainfall in December
Carnelian Bay, CA

Average rainfall in December - Carnelian Bay, CA
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is February (3.35").
The driest months (with the least rainfall) are June and August (0.12").

Average rainfall days in December
Carnelian Bay, CA

Average rainfall days in December - Carnelian Bay, CA
  • Average rainfall days in December: 4.9 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is September (1.8 days).

Average snowfall in December
Carnelian Bay, CA

Average snowfall in December - Carnelian Bay, CA
  • Average snowfall in December: 20.47"

The month with the highest snowfall is March (20.63").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Carnelian Bay, CA

Average snowfall days in December - Carnelian Bay, CA
  • Average snowfall days in December: 12.9 days

The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Carnelian Bay, CA

Average daylight in December / Average sunshine in December - Carnelian Bay, CA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in December
Carnelian Bay, CA

Average sunshine days in December - Carnelian Bay, CA
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is September (28 days).
The month with the least sunshine days is March (15.2 days).

Average UV index in December
Carnelian Bay, CA

Average UV index in December - Carnelian Bay, CA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Carnelian Bay, CA

Average cloud cover in December - Carnelian Bay, CA
  • Average cloud cover in December: 38

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 7).

Average visibility in December
Carnelian Bay, CA

Average visibility in December - Carnelian Bay, CA
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

Carnelian Bay, California, USA

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