December weather forecast
Apple Valley, CA

Weather in December

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

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.

Humidity

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

Rainfall

The month with the most rainfall in Apple Valley is December when the rain falls for 5.5 days and typically aggregates up to 0.87" (22mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Apple Valley. In Apple Valley, in December, snow falls for 0.4 days, with typically accumulated 0.87" (22mm) of snow. In Apple Valley, during the entire year, snow falls for 2.7 days, and aggregates up to 3.27" (83mm) of snow.

Daylight

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

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Apple Valley. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

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, California.

What is the most humid month in Apple Valley?

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

What is the average humidity in December in Apple Valley?

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

What is the wettest month in Apple Valley?

The month with the most rainfall is December when the rain falls for 5.5 days and typically aggregates up to 0.87" (22mm) of precipitation.

How much does it rain in Apple Valley in December?

In Apple Valley, during December, the rain falls for 5.5 days and regularly aggregates up to 0.87" (22mm) of precipitation.

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

In Apple Valley, in December, during 0.4 snowfall days, 0.87" (22mm) of snow is typically accumulated.

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.

What is the average length of the day in December in Apple Valley?

In December, the average length of the day in Apple Valley 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 long on average sun shines in December in Apple Valley?

In Apple Valley, the average sunshine in December is 7.1h.

When is 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.

What is the UV index intensity in December in Apple Valley?

In Apple Valley, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in December
Apple Valley, CA

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).

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Average pressure in December
Apple Valley, CA

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).

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Average wind speed in December
Apple Valley, CA

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).

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Average humidity in December
Apple Valley, CA

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%).

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Average rainfall in December
Apple Valley, CA

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).

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Average rainfall days in December
Apple Valley, CA

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).

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Average snowfall in December
Apple Valley, CA

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).

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Average snowfall days in December
Apple Valley, CA

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).

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

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).

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Average sunshine days in December
Apple Valley, CA

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).

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Average UV index in December
Apple Valley, CA

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).

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Average cloud cover in December
Apple Valley, CA

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).

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Average visibility in December
Apple Valley, CA

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).

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