December weather forecast
Anaheim, CA

Beautiful residential area in Anaheim, California with a tall flat building in a distance
Beautiful residential area in Anaheim, California with a tall flat building in a distance

Weather in December

The first month of the winter, December, is also an enjoyable month in Anaheim, California, with an average temperature fluctuating between 50.9°F (10.5°C) and 64°F (17.8°C).

Temperature

December is the coldest month, with an average high-temperature of 64°F (17.8°C) and an average low-temperature of 50.9°F (10.5°C).

Humidity

In Anaheim, the average relative humidity in December is 55%.

Rainfall

December is the month with the most rainfall. Rain falls for 6.6 days and accumulates 1.54" (39mm) of precipitation.

Daylight

With an average of 9h and 57min of daylight, December has the shortest days of the year in Anaheim.
On the first day of December, sunrise is at 6:38 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:53 pm PST.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in December interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
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FAQ

What is the coldest month in Anaheim?

With an average high-temperature of 64°F (17.8°C) and an average low-temperature of 50.9°F (10.5°C), December is the coldest month in Anaheim, California.

What is the temperature in December in Anaheim?

In Anaheim, in December, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 50.9°F (10.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is computed to be 84.2°F (29°C).

What is the average humidity in December in Anaheim?

In December, the average relative humidity in Anaheim, California, is 55%.

What is the rainiest month in Anaheim?

December is the month with the most rainfall in Anaheim, California. Rain falls for 6.6 days and accumulates 1.54" (39mm) of precipitation.

How much does it rain in Anaheim in December?

In December, the rain falls for 6.6 days. Throughout December, 1.54" (39mm) of precipitation is accumulated.

What is the month with the shortest days in Anaheim?

With an average of 9h and 57min of daylight, December has the shortest days of the year.

How many hours of daylight does Anaheim have in December?

The average day length in December in Anaheim, California, is 9h and 57min.

What time are sunrise and sunset in December in Anaheim?

In December, on the first day of the month, sunrise is at 6:38 am and sunset at 4:42 pm. On the last day of the month, in Anaheim, sunrise is at 6:56 am and sunset at 4:53 pm PST.

What is the month with the least sunshine in Anaheim?

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

How many hours of sunshine does Anaheim have in December?

In Anaheim, the average sunshine duration in December is 6.7h.

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

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

How high is the UV index in December in Anaheim?

The average daily maximum UV index in December in Anaheim, California, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Anaheim, CA

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

The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (64°F).

  • Average low temperature in December: 50.9°F

The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (50.2°F).

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Average pressure in December
Anaheim, CA

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

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Anaheim, CA

Average wind speed in December - Anaheim, CA
  • Average wind speed in December: 5.1mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

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Average humidity in December
Anaheim, CA

Average humidity in December - Anaheim, CA
  • Average humidity in December: 55%

The month with the highest relative humidity is June (65%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in December
Anaheim, CA

Average rainfall in December - Anaheim, CA
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Anaheim, CA

Average rainfall days in December - Anaheim, CA
  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.5 days).

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

Average daylight in December / Average sunshine in December - Anaheim, CA
  • Average daylight in December: 9h and 57min

The month with the longest days is June (Average daylight: 14h and 22min).
The month with the shortest days is December (Average daylight: 9h and 57min).

  • Average sunshine in December: 6h and 42min

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).

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Average sunshine days in December
Anaheim, CA

Average sunshine days in December - Anaheim, CA
  • Average sunshine days in December: 23.2 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (20.6 days).

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Average UV index in December
Anaheim, CA

Average UV index in December - Anaheim, 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 January, February, November and December (UV index 4).

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Average cloud cover in December
Anaheim, CA

Average cloud cover in December - Anaheim, 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 5).

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Average visibility in December
Anaheim, CA

Average visibility in December - Anaheim, 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).

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