December weather forecast
Artesia, CA

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Weather in December

The first month of the winter, December, is still a comfortable month in Artesia, California, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 51.4°F (10.8°C).

Temperature

December proves to be the coldest month, recording an average maximum temperature of 64°F (17.8°C) and a minimum temperature of 51.4°F (10.8°C).

Humidity

In Artesia, the average relative humidity in December is 56%.

Rainfall

The month with the most rainfall is December, when the rain falls for 4.9 days and typically aggregates up to 0.55" (14mm) of precipitation.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:54 pm PST.

Sunshine

With an average of 6.7h of sunshine, December has the least sunshine of the year.

UV index

February, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 4 during December translates into the following guidance:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. 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.

Frequently asked questions

What time of the year is the coldest in Artesia?

December, noted for its average high-temperature of 64°F (17.8°C) and an average low-temperature of 51.4°F (10.8°C), is considered the coldest month in Artesia.

What is the usual temperature for Artesia in December?

Artesia in December has an average high-temperature of 64°F (17.8°C) and an average low-temperature of 51.4°F (10.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 84.2°F (29°C).

What is the average humidity in December in Artesia?

In Artesia, the average relative humidity in December is 56%.

What is the rainiest month in Artesia?

December is the month with the most rainfall in Artesia, California. Rain falls for 4.9 days and accumulates 0.55" (14mm) of precipitation.

How many days does it rain in December in Artesia?

In Artesia, California, during December, the rain falls for 4.9 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the month with the shortest days in Artesia?

With an average of 9h and 54min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Artesia?

In December, the average day length in Artesia, California, is 9h and 57min.

When is the sunrise / sunset in December in Artesia?

On the first day of December, sunrise is at 6:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:54 pm PST.

What is the month with the least sunshine in Artesia?

The month with the least sunshine in Artesia is December, with an average of 6.7h of sunshine.

How long on average sun shines in December in Artesia?

The average sunshine duration in December in Artesia, California, is 6.7h.

What are the months with the lowest UV index in Artesia?

February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Artesia.

What is the UV index intensity in December in Artesia?

The average daily maximum UV index in December in Artesia is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Artesia, CA

Average temperature in December - Artesia, CA
  • Average high temperature in December: 64°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (64°F).

  • Average low temperature in December: 51.4°F

The month with the highest average low temperature is August (65.7°F).
The coldest month (with the lowest average low temperature) is February (51.3°F).

Average pressure in December
Artesia, CA

Average pressure in December - Artesia, CA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).

Average wind speed in December
Artesia, CA

Average wind speed in December - Artesia, CA
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (4.8mph).

Average humidity in December
Artesia, CA

Average humidity in December - Artesia, CA
  • Average humidity in December: 56%

The month with the highest relative humidity is June (67%).
The month with the lowest relative humidity is November (52%).

Average rainfall in December
Artesia, CA

Average rainfall in December - Artesia, CA
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is December (0.55").
The driest month (with the least rainfall) is June (0").

Average rainfall days in December
Artesia, CA

Average rainfall days in December - Artesia, CA
  • Average rainfall days in December: 4.9 days

The month with the highest number of rainy days is March (5.6 days).
The month with the least rainy days is June (0.6 days).

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

Average daylight in December / Average sunshine in December - Artesia, 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 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in December
Artesia, CA

Average sunshine days in December - Artesia, CA
  • Average sunshine days in December: 24.6 days

The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (22.9 days).

Average UV index in December
Artesia, CA

Average UV index in December - Artesia, CA
  • Average UV index in December: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are February, November and December (UV index 4).

Average cloud cover in December
Artesia, CA

Average cloud cover in December - Artesia, CA
  • Average cloud cover in December: 22

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in December
Artesia, CA

Average visibility in December - Artesia, 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).

Artesia, California, USA

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