December weather forecastBlue Canyon, CA

December

Weather in December

The first month of the winter, December, is also a frosty month in Blue Canyon, California, with an average temperature varying between 29.1°F (-1.6°C) and 43.7°F (6.5°C).

Temperature

Blue Canyon's December weather reaches an average high of 43.7°F (6.5°C) and an average low of 29.1°F (-1.6°C), making it the coldest month.

Humidity

In December, the average relative humidity in Blue Canyon is 72%.

Rainfall

In Blue Canyon, in December, it is raining for 7.5 days, with typically 5.55" (141mm) of accumulated precipitation. Throughout the year, there are 72.9 rainfall days, and 36.06" (916mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. In Blue Canyon, during December, snow falls for 9 days and regularly aggregates up to 21.69" (551mm) of snow. Throughout the year, there are 53.3 snowfall days, and 151.57" (3850mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:04 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:50 pm PST.

Sunshine

The average sunshine in December is 5.7h.

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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Blue Canyon's temperature records reveal December as the coldest month, marked by average highs of 43.7°F (6.5°C) and lows of 29.1°F (-1.6°C).

The average high-temperature, in December, in Blue Canyon, is 43.7°F (6.5°C), while the average low-temperature is 29.1°F (-1.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 82.4°F (28°C).

In December, the average relative humidity is 72%.

In December, the rain falls for 7.5 days. Throughout December, 5.55" (141mm) of precipitation is accumulated.

In Blue Canyon, in December, snow falls for 9 days, with typically accumulated 21.69" (551mm) of snow.

The month with the shortest days in Blue Canyon is December, with an average of 9h and 30min of daylight.

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

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:50 pm PST.

The average sunshine duration in December is 5.7h.

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

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Blue Canyon, CA

  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (43.7°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (52.9°F).
The coldest month (with the lowest average low temperature) is December (29.1°F).

Average pressure in December
Blue Canyon, CA

  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Blue Canyon, CA

  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Blue Canyon, CA

  • Average humidity in December: 72%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is July (39%).

Average rainfall in December
Blue Canyon, CA

  • Average rainfall in December: 5.55"

The wettest month (with the highest rainfall) is March (7.09").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in December
Blue Canyon, CA

  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is April (11 days).
The month with the least rainy days is July (1.8 days).

Average snowfall in December
Blue Canyon, CA

  • Average snowfall in December: 21.69"

The month with the highest snowfall is March (37.6").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Blue Canyon, CA

  • Average snowfall days in December: 9 days

The month with the highest number of snowfall days is March (11.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Blue Canyon, CA

  • Average daylight in December: 9h and 30min

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 42min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

Average sunshine days in December
Blue Canyon, CA

  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is July (28 days).
The month with the least sunshine days is March (12.6 days).

Average UV index in December
Blue Canyon, CA

  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Blue Canyon, CA

  • Average cloud cover in December: 36

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in December
Blue Canyon, CA

  • Average visibility in December: 6mi

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