December weather forecast and climate
Avocado Heights, CA

Weather in December

December, the first month of the winter, in Avocado Heights, is still a comfortable month, with average temperature varying between 48.9°F (9.4°C) and 64.6°F (18.1°C).

Temperature

December is the coldest month, with an average high-temperature of 64.6°F (18.1°C) and an average low-temperature of 48.9°F (9.4°C).

Humidity

In December, the average relative humidity is 51%.

Rainfall

The month with the most rainfall is December when the rain falls for 5.4 days and typically aggregates up to 1.3" (33mm) of precipitation.

Daylight

The month with the shortest days in Avocado Heights is December, with an average of 9.9h of daylight.

Sunshine

Months with the least sunshine in Avocado Heights are February and December, with an average of 6.8h of sunshine.

UV index

Months with the lowest UV index in Avocado Heights are January, February, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 in December transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the coldest month in Avocado Heights?

With an average high-temperature of 64.6°F (18.1°C) and an average low-temperature of 48.9°F (9.4°C), December is the coldest month in Avocado Heights, California.

What is the temperature in December in Avocado Heights?

The average high-temperature, in December, is 64.6°F (18.1°C), while the average low-temperature is 48.9°F (9.4°C).

What is the average humidity in December in Avocado Heights?

In December, the average relative humidity in Avocado Heights, California, is 51%.

How much does it rain in Avocado Heights in December?

In Avocado Heights, in December, during 5.4 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

What is the wettest month in Avocado Heights?

December is the month with the most rainfall in Avocado Heights, California. Rain falls for 5.4 days and accumulates 1.3" (33mm) of precipitation.

What is the month with the shortest days in Avocado Heights?

With an average of 9.9h of daylight, December has the shortest days of the year in Avocado Heights.

How many hours of daylight does Avocado Heights have in December?

In Avocado Heights, the average length of the day in December is 9.9h.

What is the month with the least sunshine in Avocado Heights?

February and December, with an average of 6.8h of sunshine, are months with the least sunshine in Avocado Heights, California.

How long on average sun shines in December in Avocado Heights?

In December, the average sunshine in Avocado Heights, California, is 6.8h.

What is the month with the lowest UV index in Avocado Heights?

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

What is the UV index reading in December in Avocado Heights?

In December, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Avocado Heights, CA

Average temperature in December - Avocado Heights, CA
  • Average high temperature in December: 64.6°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is December (64.6°F).

  • Average low temperature in December: 48.9°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (48°F).

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Average pressure in December
Avocado Heights, CA

Average pressure in December - Avocado Heights, CA
  • Average pressure in December: 30.07"

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

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Average wind speed in December
Avocado Heights, CA

Average wind speed in December - Avocado Heights, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.6mph).

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Average humidity in December
Avocado Heights, CA

Average humidity in December - Avocado Heights, CA
  • Average humidity in December: 51%

Months with the highest relative humidity are May and June (58%).
The month with the lowest relative humidity is November (46%).

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Average rainfall in December
Avocado Heights, CA

Average rainfall in December - Avocado Heights, CA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is December (1.3").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in December
Avocado Heights, CA

Average rainfall days in December - Avocado Heights, CA
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is March (5.9 days).
The month with the least rainy days is August (1.2 days).

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Average daylight in December /
Average sunshine in December
Avocado Heights, CA

Average daylight in December / Average sunshine in December - Avocado Heights, 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: 6.8h

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are February and December (Average sunshine: 6.8).

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Average sunshine days in December
Avocado Heights, CA

Average sunshine days in December - Avocado Heights, CA
  • Average sunshine days in December: 24.5 days

Months with the most sunshine days are June and August (27.9 days).
The month with the least sunshine days is February (22.3 days).

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Average UV index in December
Avocado Heights, CA

Average UV index in December - Avocado Heights, CA
  • Average UV index in December: 4

The month with the highest UV index is August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in December
Avocado Heights, CA

Average cloud cover in December - Avocado Heights, CA
  • Average cloud cover in December: 22

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
Avocado Heights, CA

Average visibility in December - Avocado Heights, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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