December weather forecastValley Springs, CA

December

Weather in December

The first month of the winter, December, is also a fresh month in Valley Springs, California, with an average temperature fluctuating between 38.8°F (3.8°C) and 54°F (12.2°C).

Temperature

Valley Springs's December weather, marked by an average high temperature of 54°F (12.2°C) and an average low temperature of 38.8°F (3.8°C), is the coldest in the year.

Humidity

In December, the average relative humidity is 69%.

Rainfall

In December, the rain falls for 9.5 days. Throughout December, 3.35" (85mm) of precipitation is accumulated. Throughout the year, there are 72.9 rainfall days, and 18.66" (474mm) of precipitation is accumulated.

Snowfall

December is the only month when snow falls. December is the month with the most snowfall. Snow falls for 0.2 days and accumulates 0.04" (1mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:53 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6h 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 value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 during December translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The coldest time of the year is December, with temperatures averaging a high of 54°F (12.2°C) and a low of 38.8°F (3.8°C).

The high-temperature, in December, in Valley Springs, is 54°F (12.2°C), while the low-temperature averages to 38.8°F (3.8°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

In December, the average relative humidity is 69%.

In Valley Springs, in December, during 9.5 rainfall days, 3.35" (85mm) of precipitation is typically accumulated.

December is the month with the most snowfall. Snow falls for 0.2 days and accumulates 0.04" (1mm) of snow.

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

December has the shortest days of the year, with an average of 9h and 36min of daylight.

In December, the average day length is 9h and 34min.

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:53 pm PST.

December has the least sunshine of the year, with an average of 6h of sunshine.

In December, the average sunshine duration is 6h.

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

In Valley Springs, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Valley Springs, CA

  • Average high temperature in December: 54°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (54°F).

  • Average low temperature in December: 38.8°F

The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is December (38.8°F).

Average pressure in December
Valley Springs, CA

  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Valley Springs, CA

  • Average wind speed in December: 4.7mph

The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest month (with the lowest average wind speed) is September (4mph).

Average humidity in December
Valley Springs, CA

  • Average humidity in December: 69%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).

Average rainfall in December
Valley Springs, CA

  • Average rainfall in December: 3.35"

The wettest month (with the highest rainfall) is March (3.66").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Valley Springs, CA

  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (1.2 days).

Average snowfall in December
Valley Springs, CA

  • Average snowfall in December: 0.04"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Valley Springs, CA

  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Valley Springs, CA

  • Average daylight in December: 9h and 36min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in December
Valley Springs, CA

  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (16.9 days).

Average UV index in December
Valley Springs, 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).

Average cloud cover in December
Valley Springs, CA

  • Average cloud cover in December: 33

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Valley Springs, 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).