December weather forecast
Baldy Mesa, CA

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Weather in December

December, the first month of the winter in Baldy Mesa, is still a cool month, with an average temperature ranging between max 54.1°F (12.3°C) and min 38.5°F (3.6°C).

Temperature

With an average high-temperature of 54.1°F (12.3°C) and an average low-temperature of 38.5°F (3.6°C), December is the coldest month.

Humidity

December is the most humid month, with an average relative humidity of 52%.

Rainfall

December is the month with the most rainfall. Rain falls for 6.2 days and accumulates 1.18" (30mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Baldy Mesa, during December, snow falls for 0.5 days and regularly aggregates up to 1.38" (35mm) of snow. Throughout the year, there are 3.1 snowfall days, and 5.28" (134mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 6:38 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:50 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a regular UV index of 3 translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

What is the coldest month?

December is Baldy Mesa's coldest month, registering average high temperatures of 54.1°F (12.3°C) and lows of 38.5°F (3.6°C).

What are December temperatures?

In Baldy Mesa, in December, the average high-temperature is 54.1°F (12.3°C), and the average low-temperature is 38.5°F (3.6°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 52%.

What is the average humidity in December in Baldy Mesa?

In Baldy Mesa, the average relative humidity in December is 52%.

What is the rainiest month in Baldy Mesa?

The month with the most rainfall is December, when the rain falls for 6.2 days and typically aggregates up to 1.18" (30mm) of precipitation.

How much does it rain in December?

In Baldy Mesa, in December, during 6.2 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Baldy Mesa, in December, snow falls for 0.5 days, with typically accumulated 1.38" (35mm) of snow.

What is the month with the shortest days in Baldy Mesa?

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

How many hours of daylight does Baldy Mesa have in December?

The average day length in December is 9h and 54min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:38 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:50 pm PST.

What is the month with the least sunshine?

With an average of 7h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Baldy Mesa have in December?

In Baldy Mesa, the average sunshine duration in December is 7h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Baldy Mesa, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Baldy Mesa, CA

Average temperature in December - Baldy Mesa, CA
  • Average high temperature in December: 54.1°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (54.1°F).

  • Average low temperature in December: 38.5°F

The month with the highest average low temperature is August (67.5°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).

Average pressure in December
Baldy Mesa, CA

Average pressure in December - Baldy Mesa, CA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in December
Baldy Mesa, CA

Average wind speed in December - Baldy Mesa, CA
  • Average wind speed in December: 6.3mph

The windiest months (with the highest average wind speed) are April and May (9.1mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).

Average humidity in December
Baldy Mesa, CA

Average humidity in December - Baldy Mesa, CA
  • Average humidity in December: 52%

The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is August (30%).

Average rainfall in December
Baldy Mesa, CA

Average rainfall in December - Baldy Mesa, CA
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is December (1.18").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in December
Baldy Mesa, CA

Average rainfall days in December - Baldy Mesa, CA
  • Average rainfall days in December: 6.2 days

The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (0.8 days).

Average snowfall in December
Baldy Mesa, CA

Average snowfall in December - Baldy Mesa, CA
  • Average snowfall in December: 1.38"

The month with the highest snowfall is November (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Baldy Mesa, CA

Average snowfall days in December - Baldy Mesa, CA
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Baldy Mesa, CA

Average daylight in December / Average sunshine in December - Baldy Mesa, 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: 7h and 0min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in December
Baldy Mesa, CA

Average sunshine days in December - Baldy Mesa, CA
  • Average sunshine days in December: 23.3 days

The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.6 days).

Average UV index in December
Baldy Mesa, CA

Average UV index in December - Baldy Mesa, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Baldy Mesa, CA

Average cloud cover in December - Baldy Mesa, CA
  • Average cloud cover in December: 21

The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June, August and September (Cloud cover 6).

Average visibility in December
Baldy Mesa, CA

Average visibility in December - Baldy Mesa, 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).

Baldy Mesa, California, USA

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