December weather forecast
Cedar Glen, CA

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Weather in December

December, the first month of the winter in Cedar Glen, is still a cool month, with an average temperature fluctuating between 53.4°F (11.9°C) and 38.3°F (3.5°C).

Temperature

December, with its average high-temperature of 53.4°F (11.9°C) and an average low-temperature of 38.3°F (3.5°C), holds the record as the coldest month.

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 52%.

Rainfall

In Cedar Glen, during December, the rain falls for 5.5 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Cedar Glen, during the entire year, the rain falls for 42.2 days and collects up to 5.55" (141mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Cedar Glen, in December, during 2.5 snowfall days, 2.09" (53mm) of snow is typically accumulated. In Cedar Glen, during the entire year, snow falls for 15.6 days and aggregates up to 18.35" (466mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:37 am and sunset at 4:38 pm. On the last day of December, in Cedar Glen, sunrise is at 6:54 am and sunset at 4:49 pm PST.

Sunshine

With an average of 6.9h of sunshine, December has the least sunshine of the year in Cedar Glen.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, an average UV index of 3 transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What is the coldest month in Cedar Glen?

Cedar Glen's temperature records reveal December as the coldest month, marked by average highs of 53.4°F (11.9°C) and lows of 38.3°F (3.5°C).

What are December temperatures in Cedar Glen?

The high-temperature, in December, in Cedar Glen, records 53.4°F (11.9°C), while the low-temperature is 38.3°F (3.5°C).

What are the most humid months in Cedar Glen?

The months with the highest humidity in Cedar Glen, California, are February and December, with an average relative humidity of 52%.

What is the average humidity in December in Cedar Glen?

In Cedar Glen, California, the average relative humidity in December is 52%.

How much does it rain in Cedar Glen in December?

In December, the rain falls for 5.5 days. Throughout December, 0.98" (25mm) of precipitation is accumulated.

How many days does it snow in December in Cedar Glen?

In December, it is snowing for 2.5 days. Throughout December, 2.09" (53mm) of snow is accumulated.

What is the month with the shortest days in Cedar Glen?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Cedar Glen have in December?

In Cedar Glen, the average day length in December is 9h and 55min.

When are sunrise and sunset in December in Cedar Glen?

On the first day of December in Cedar Glen, sunrise is at 6:37 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:49 pm PST.

What is the month with the least sunshine in Cedar Glen?

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

How many hours of sunshine does Cedar Glen have in December?

In Cedar Glen, California, the average sunshine duration in December is 6.9h.

What are the months with the lowest UV index in Cedar Glen?

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

What is the UV index reading in December in Cedar Glen?

The average daily maximum UV index in December in Cedar Glen, California, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Cedar Glen, CA

Average temperature in December - Cedar Glen, CA
  • Average high temperature in December: 53.4°F

The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

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Average pressure in December
Cedar Glen, CA

Average pressure in December - Cedar Glen, 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 (29.83"Hg).

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Average wind speed in December
Cedar Glen, CA

Average wind speed in December - Cedar Glen, CA
  • Average wind speed in December: 5.9mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

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Average humidity in December
Cedar Glen, CA

Average humidity in December - Cedar Glen, CA
  • Average humidity in December: 52%

The months with the highest relative humidity are February and December (52%).
The month with the lowest relative humidity is August (32%).

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Average rainfall in December
Cedar Glen, CA

Average rainfall in December - Cedar Glen, CA
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is February (1.1").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in December
Cedar Glen, CA

Average rainfall days in December - Cedar Glen, CA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is June (1.2 days).

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Average snowfall in December
Cedar Glen, CA

Average snowfall in December - Cedar Glen, CA
  • Average snowfall in December: 2.09"

The month with the highest snowfall is April (4.09").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Cedar Glen, CA

Average snowfall days in December - Cedar Glen, CA
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (4 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
Cedar Glen, CA

Average daylight in December / Average sunshine in December - Cedar Glen, 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
Cedar Glen, CA

Average sunshine days in December - Cedar Glen, CA
  • Average sunshine days in December: 23.6 days

The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (21.8 days).

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Average UV index in December
Cedar Glen, CA

Average UV index in December - Cedar Glen, CA
  • Average UV index in December: 3

The month with the highest UV index is 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
Cedar Glen, CA

Average cloud cover in December - Cedar Glen, CA
  • Average cloud cover in December: 22

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in December
Cedar Glen, CA

Average visibility in December - Cedar Glen, 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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Cedar Glen, California, USA

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