December weather forecast and climate
Apple Valley, CA

The first month of the winter, December, is still a cool month in Apple Valley, California, with average temperature ranging between min 38.3°F (3.5°C) and max 53.2°F (11.8°C).

Temperature

The coldest month is December, with an average high-temperature of 53.2°F (11.8°C) and an average low-temperature of 38.3°F (3.5°C).

Humidity

December is the most humid month in Apple Valley, with an average relative humidity of 51%.

Rainfall

December is the month with the most rainfall in Apple Valley, California. Rain falls for 5.5 days and accumulates 0.87" (22mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In December, it is snowing for 0.4 days. Throughout December, 0.87" (22mm) of snow is accumulated. Throughout the year, there are 2.7 snowfall days, and 3.27" (83mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Apple Valley, California, with an average of 9.9h of daylight.

Sunshine

January and December, with an average of 7.1h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Apple Valley?

With an average high-temperature of 53.2°F (11.8°C) and an average low-temperature of 38.3°F (3.5°C), December is the coldest month in Apple Valley.

What is the temperature in December in Apple Valley?

In December, the average high-temperature is 53.2°F (11.8°C), and the average low-temperature is 38.3°F (3.5°C).

What is the most humid month in Apple Valley?

The most humid month in Apple Valley is December, with an average relative humidity of 51%.

What is the average humidity in December in Apple Valley?

In Apple Valley, the average relative humidity in December is 51%.

How many days does it rain in December in Apple Valley?

In December, in Apple Valley, California, the rain falls for 5.5 days. Throughout December, 0.87" (22mm) of precipitation is accumulated.

What is the wettest month in Apple Valley?

December is the month with the most rainfall. Rain falls for 5.5 days and accumulates 0.87" (22mm) of precipitation.

How much does it snow in Apple Valley in December?

In Apple Valley, during December, snow falls for 0.4 days and regularly aggregates up to 0.87" (22mm) of snow.

What is the month with the shortest days in Apple Valley?

With an average of 9.9h of daylight, December has the shortest days of the year in Apple Valley, California.

How many hours of daylight does Apple Valley have in December?

In Apple Valley, California, the average length of the day in December is 9.9h.

What is the month with the least sunshine in Apple Valley?

January and December, with an average of 7.1h of sunshine, are months with the least sunshine in Apple Valley.

How many hours of sunshine does Apple Valley have in December?

The average sunshine in December in Apple Valley, California, is 7.1h.

What are the months with the lowest UV index in Apple Valley?

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

How high is the UV index in December in Apple Valley?

In December, the average daily maximum UV index in Apple Valley is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Apple Valley, CA
  • Average high temperature in December: 11.8°C

The warmest month (with the highest average high temperature) is July (33.8°C).
The month with the lowest average high temperature is December (11.8°C).

  • Average low temperature in December: 3.5°C

The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is December (3.5°C).

Average pressure in December - Apple Valley, CA
  • Average pressure in December: 1018.6mbar

The month with the highest atmospheric pressure is January (1019.7mbar).
The month with the lowest atmospheric pressure is June (1009.8mbar).

Average wind speed in December - Apple Valley, CA
  • Average wind speed in December: 10.4km/h

The windiest month (with the highest average wind speed) is May (16.8km/h).
The calmest month (with the lowest average wind speed) is January (10km/h).

Average humidity in December - Apple Valley, CA
  • Average humidity in December: 51%

The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is August (26%).

Average rainfall in December - Apple Valley, CA
  • Average rainfall in December: 22mm

The wettest month (with the highest rainfall) is December (22mm).
The driest month (with the least rainfall) is June (1mm).

Average rainfall days in December - Apple Valley, 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 (0.8 days).

Average snowfall in December - Apple Valley, CA
  • Average snowfall in December: 22mm

The month with the highest snowfall is November (40mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Apple Valley, CA
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is February (1.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Apple Valley, 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: 7.1h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January and December (Average sunshine: 7.1).

Average sunshine days in December - Apple Valley, CA
  • Average sunshine days in December: 23.9 days

The month with the most sunshine days is June (29 days).
The month with the least sunshine days is February (22.2 days).

Average UV index in December - Apple Valley, CA
  • Average UV index in December: 3

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December - Apple Valley, CA
  • Average cloud cover in December: 20

The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in December - Apple Valley, CA
  • Average visibility in December: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).