December weather forecast
Plaster City, CA

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Weather in December

The first month of the winter, December, is also an enjoyable month in Plaster City, California, with an average temperature ranging between max 65.8°F (18.8°C) and min 49.1°F (9.5°C).

Temperature

December, having an average high-temperature of 65.8°F (18.8°C) and an average low-temperature of 49.1°F (9.5°C), is the coldest month.

Humidity

January and December, with an average relative humidity of 40%, are the most humid months in Plaster City, California.

Rainfall

In December, in Plaster City, the rain falls for 2.5 days. Throughout December, 0.28" (7mm) of precipitation is accumulated. In Plaster City, during the entire year, the rain falls for 34.3 days and collects up to 3.27" (83mm) of precipitation.

Daylight

The month with the shortest days in Plaster City is December, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 6:28 am and sunset at 4:37 pm. On the last day of December, sunrise is at 6:45 am and sunset at 4:47 pm PST.

Sunshine

December has the least sunshine of the year in Plaster City, with an average of 7.1h of sunshine.

UV index

The month with the lowest UV index in Plaster City, California, is December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 4 suggests these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Plaster City?

With an average high-temperature of 65.8°F (18.8°C) and an average low-temperature of 49.1°F (9.5°C), December is the coldest month in Plaster City, California.

What are December temperatures in Plaster City?

In December, the average high-temperature and low-temperature in Plaster City, California, are 65.8°F (18.8°C) and 49.1°F (9.5°C) respectively.

What is the most humid month in Plaster City?

The months with the highest humidity in Plaster City, California, are January and December, with an average relative humidity of 40%.

What is the average humidity in December in Plaster City?

In December, the average relative humidity is 40%.

How many days does it rain in December in Plaster City?

In Plaster City, California, in December, during 2.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

What is the month with the shortest days in Plaster City?

With an average of 10h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Plaster City have in December?

The average day length in December in Plaster City is 10h and 2min.

When is the sunrise / sunset in December in Plaster City?

In December, on the first day of the month, sunrise is at 6:28 am and sunset at 4:37 pm. On the last day of the month, in Plaster City, California, sunrise is at 6:45 am and sunset at 4:47 pm PST.

What is the month with the least sunshine in Plaster City?

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

How long on average sun shines in December in Plaster City?

In Plaster City, the average sunshine duration in December is 7.1h.

When is the lowest UV index in Plaster City?

With an average maximum UV index of 4, December is the month with the lowest UV index in Plaster City, California.

What is the UV index intensity in December in Plaster City?

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

Average temperature in December
Plaster City, CA

Average temperature in December - Plaster City, CA
  • Average high temperature in December: 65.8°F

The warmest month (with the highest average high temperature) is July (105.4°F).
The month with the lowest average high temperature is December (65.8°F).

  • Average low temperature in December: 49.1°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).

Average pressure in December
Plaster City, CA

Average pressure in December - Plaster City, CA
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

Average wind speed in December
Plaster City, CA

Average wind speed in December - Plaster City, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is January (5mph).

Average humidity in December
Plaster City, CA

Average humidity in December - Plaster City, CA
  • Average humidity in December: 40%

The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (22%).

Average rainfall in December
Plaster City, CA

Average rainfall in December - Plaster City, CA
  • Average rainfall in December: 0.28"

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

Average rainfall days in December
Plaster City, CA

Average rainfall days in December - Plaster City, CA
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is July (7.2 days).
The month with the least rainy days is May (1.1 days).

Average daylight in December /
Average sunshine in December
Plaster City, CA

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

The month with the longest days is June (Average daylight: 14h and 18min).
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
Plaster City, CA

Average sunshine days in December - Plaster City, CA
  • Average sunshine days in December: 28.5 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

Average UV index in December
Plaster City, CA

Average UV index in December - Plaster City, CA
  • Average UV index in December: 4

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in December
Plaster City, CA

Average cloud cover in December - Plaster City, 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
Plaster City, CA

Average visibility in December - Plaster City, 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).

Plaster City, California, USA

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