December weather forecast
Macomber Palms, CA

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Weather in December

The first month of the winter, December, is still a mild month in Macomber Palms, California, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 59.7°F (15.4°C).

Temperature

The coldest temperatures occur during December, when averages reach a peak of 59.7°F (15.4°C) and a low of 45.9°F (7.7°C).

Humidity

With an average relative humidity of 46%, December is the most humid month.

Rainfall

In December, the rain falls for 4.5 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. In Macomber Palms, during the entire year, the rain falls for 43.4 days and collects up to 4.21" (107mm) of precipitation.

Daylight

December has the shortest days of the year in Macomber Palms, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:32 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:46 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 7.1h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 3 during December leads to these instructions:
Exercise prevention - Warding off sunburn is urged. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

The coldest time of the year is December, with temperatures averaging a high of 59.7°F (15.4°C) and a low of 45.9°F (7.7°C).

What is the average December temperature?

The average high-temperature and low-temperature in Macomber Palms during December are 59.7°F (15.4°C) and 45.9°F (7.7°C) respectively.

What is the most humid month?

The most humid month is December, with an average relative humidity of 46%.

What is the average humidity in December in Macomber Palms?

In Macomber Palms, the average relative humidity in December is 46%.

How much does it rain in December?

In Macomber Palms, in December, during 4.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

What is the average length of the day in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:32 am and sunset at 4:36 pm. On the last day of the month, in Macomber Palms, California, sunrise is at 6:49 am and sunset at 4:46 pm PST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 7.1h of sunshine.

How many hours of sunshine does Macomber Palms have in December?

The average sunshine duration in December is 7.1h.

When is the lowest UV index in Macomber Palms?

The month with the lowest UV index is December, with an average maximum UV index of 3.

How high is the UV index in December?

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

Average temperature in December
Macomber Palms, CA

Average temperature in December - Macomber Palms, CA
  • Average high temperature in December: 59.7°F

The warmest month (with the highest average high temperature) is July (95.7°F).
The month with the lowest average high temperature is December (59.7°F).

  • Average low temperature in December: 45.9°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is December (45.9°F).

Average pressure in December
Macomber Palms, CA

Average pressure in December - Macomber Palms, CA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).

Average wind speed in December
Macomber Palms, CA

Average wind speed in December - Macomber Palms, CA
  • Average wind speed in December: 6mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

Average humidity in December
Macomber Palms, CA

Average humidity in December - Macomber Palms, CA
  • Average humidity in December: 46%

The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (27%).

Average rainfall in December
Macomber Palms, CA

Average rainfall in December - Macomber Palms, CA
  • Average rainfall in December: 0.55"

The wettest months (with the highest rainfall) are July and August (0.63").
The driest months (with the least rainfall) are May and June (0.08").

Average rainfall days in December
Macomber Palms, CA

Average rainfall days in December - Macomber Palms, CA
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (0.9 days).

Average daylight in December /
Average sunshine in December
Macomber Palms, CA

Average daylight in December / Average sunshine in December - Macomber Palms, CA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in December
Macomber Palms, CA

Average sunshine days in December - Macomber Palms, CA
  • Average sunshine days in December: 25 days

The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (20.8 days).

Average UV index in December
Macomber Palms, CA

Average UV index in December - Macomber Palms, CA
  • Average UV index in December: 3

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Macomber Palms, CA

Average cloud cover in December - Macomber Palms, CA
  • Average cloud cover in December: 17

The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).

Average visibility in December
Macomber Palms, CA

Average visibility in December - Macomber Palms, 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).

Macomber Palms, California, USA

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