December weather forecast
Pieta, CA

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Weather in December

The first month of the winter, December, is still a cool month in Pieta, California, with an average temperature ranging between max 54.9°F (12.7°C) and min 38.5°F (3.6°C).

Temperature

The coldest month is December, with an average high-temperature of 54.9°F (12.7°C) and an average low-temperature of 38.5°F (3.6°C).

Humidity

In December, the average relative humidity is 75%.

Rainfall

In Pieta, during December, the rain falls for 12.1 days and regularly aggregates up to 3.66" (93mm) of precipitation. Throughout the year, there are 82.4 rainfall days, and 20.75" (527mm) of precipitation is accumulated.

Snowfall

In Pieta, snow does not fall in January, March through December.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:30 am and sunset at 5:00 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 5.4h of sunshine.

UV index

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

December is the coldest month, exhibiting average temperatures of 54.9°F (12.7°C) at the peak and 38.5°F (3.6°C) at the base.

What are December temperatures?

The average high-temperature and low-temperature during December are 54.9°F (12.7°C) and 38.5°F (3.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 84.2°F (29°C).

What is the average humidity in December?

In Pieta, the average relative humidity in December is 75%.

How many days does it rain in December?

In Pieta, California, in December, it is raining for 12.1 days, with typically 3.66" (93mm) of accumulated precipitation.

When it does not snow?

In Pieta, snow does not fall in January, March through December.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Pieta have in December?

In Pieta, the average day length in December is 9h and 29min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:00 pm PST.

What is the month with the least sunshine?

With an average of 5.4h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Pieta, the average sunshine duration in December is 5.4h.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Pieta, CA

Average temperature in December - Pieta, CA
  • Average high temperature in December: 54.9°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in December: 38.5°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).

Average pressure in December
Pieta, CA

Average pressure in December - Pieta, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

Average wind speed in December
Pieta, CA

Average wind speed in December - Pieta, CA
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).

Average humidity in December
Pieta, CA

Average humidity in December - Pieta, CA
  • Average humidity in December: 75%

The month with the highest relative humidity is March (77%).
The months with the lowest relative humidity are July and September (57%).

Average rainfall in December
Pieta, CA

Average rainfall in December - Pieta, CA
  • Average rainfall in December: 3.66"

The wettest month (with the highest rainfall) is February (4.25").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Pieta, CA

Average rainfall days in December - Pieta, CA
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is March (14.6 days).
The months with the least rainy days are July and August (1.2 days).

Average snowfall in December
Pieta, CA

Average snowfall in December - Pieta, CA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Pieta, CA

Average snowfall days in December - Pieta, CA
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in December / Average sunshine in December - Pieta, CA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Pieta, CA

Average sunshine days in December - Pieta, CA
  • Average sunshine days in December: 18 days

The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.2 days).

Average UV index in December
Pieta, CA

Average UV index in December - Pieta, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 2).

Average cloud cover in December
Pieta, CA

Average cloud cover in December - Pieta, CA
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in December
Pieta, CA

Average visibility in December - Pieta, 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).

Pieta, California, USA

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