December weather forecast
Anderson, CA

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Weather in December

December, the first month of the winter in Anderson, is still a cool month, with an average temperature varying between 51.8°F (11°C) and 37.8°F (3.2°C).

Temperature

Anderson experiences its lowest average temperatures in December, reaching a peak of 51.8°F (11°C) and a minimum of 37.8°F (3.2°C).

Humidity

In Anderson, the average relative humidity in December is 70%.

Rainfall

In Anderson, in December, it is raining for 12.1 days, with typically 3.7" (94mm) of accumulated precipitation. In Anderson, California, during the entire year, the rain falls for 88.1 days and collects up to 23.62" (600mm) of precipitation.

Snowfall

Months with snowfall in Anderson are January through March, November and December. In Anderson, in December, during 0.3 snowfall days, 0.16" (4mm) of snow is typically accumulated. Throughout the year, in Anderson, there are 1.2 snowfall days, and 0.55" (14mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:52 pm PST.

Sunshine

December has the least sunshine of the year in Anderson, with an average of 5.6h 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 Anderson. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct Sun exposure should be minimized especially during midday when radiation is most intense. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

What time of the year is the coldest in Anderson?

The coldest temperatures occur during December, when averages reach a peak of 51.8°F (11°C) and a low of 37.8°F (3.2°C).

What are December temperatures in Anderson?

The average high-temperature, in December, in Anderson, is 51.8°F (11°C), while the average low-temperature is 37.8°F (3.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in June is estimated at 86°F (30°C).

What is the average humidity in December in Anderson?

The average relative humidity in December in Anderson, California, is 70%.

How many days does it rain in December in Anderson?

In Anderson, California, during December, the rain falls for 12.1 days and regularly aggregates up to 3.7" (94mm) of precipitation.

How many days does it snow in December in Anderson?

In Anderson, California, during December, snow falls for 0.3 days and regularly aggregates up to 0.16" (4mm) of snow.

What is the month with the shortest days in Anderson?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Anderson, California.

How many hours of daylight does Anderson have in December?

In December, the average day length in Anderson, California, is 9h and 20min.

What time are sunrise and sunset in December in Anderson?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:43 pm. On the last day of the month, in Anderson, California, sunrise is at 7:32 am and sunset at 4:52 pm PST.

What is the month with the least sunshine in Anderson?

December has the least sunshine of the year, with an average of 5.6h of sunshine.

How long on average sun shines in December in Anderson?

In December, the average sunshine duration is 5.6h.

What is the month with the lowest UV index in Anderson?

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

What is the UV index intensity in December in Anderson?

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average max. wind speed
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
Anderson, CA

Average temperature in December - Anderson, CA
  • Average high temperature in December: 51.8°F

The warmest month (with the highest average high temperature) is July (95.2°F).
The month with the lowest average high temperature is December (51.8°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).

Average pressure in December
Anderson, CA

Average pressure in December - Anderson, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.92"Hg).

Average wind speed in December
Anderson, CA

Average wind speed in December - Anderson, CA
  • Average wind speed in December: 4.6mph

The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in December
Anderson, CA

Average humidity in December - Anderson, CA
  • Average humidity in December: 70%

The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is August (32%).

Average rainfall in December
Anderson, CA

Average rainfall in December - Anderson, CA
  • Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is March (4.65").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in December
Anderson, CA

Average rainfall days in December - Anderson, CA
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is August (1.4 days).

Average snowfall in December
Anderson, CA

Average snowfall in December - Anderson, CA
  • Average snowfall in December: 0.16"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Anderson, CA

Average snowfall days in December - Anderson, CA
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Anderson, CA

Average daylight in December / Average sunshine in December - Anderson, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 4min

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

Average sunshine days in December
Anderson, CA

Average sunshine days in December - Anderson, CA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (14.6 days).

Average UV index in December
Anderson, CA

Average UV index in December - Anderson, 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
Anderson, CA

Average cloud cover in December - Anderson, CA
  • Average cloud cover in December: 38

The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in December
Anderson, CA

Average visibility in December - Anderson, 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).

Anderson, California, USA

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