December weather forecast
Perez, CA

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Weather in December

The first month of the winter, December, is also a wintry month in Perez, California, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 23.2°F (-4.9°C).

Temperature

With average high temperatures of 36.5°F (2.5°C) and lows of 23.2°F (-4.9°C), December is the coldest month.

Humidity

January and December, with an average relative humidity of 79%, are the most humid months in Perez.

Rainfall

December is the month with the most rainfall. Rain falls for 8.1 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

Months with snowfall in Perez are January through June, September through December. December is the month with the most snowfall in Perez. Snow falls for 12.4 days and accumulates 8.27" (210mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:44 pm PST.

Sunshine

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

UV index

The months with the lowest UV index in Perez are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What is the coldest time of year in Perez?

Perez's December weather reaches an average high of 36.5°F (2.5°C) and an average low of 23.2°F (-4.9°C), making it the coldest month.

How cold is it in Perez in December?

In December, the average high-temperature and low-temperature in Perez, California, are 36.5°F (2.5°C) and 23.2°F (-4.9°C) respectively.

What is the most humid month in Perez?

The months with the highest humidity are January and December, with an average relative humidity of 79%.

What is the average humidity in December in Perez?

In Perez, the average relative humidity in December is 79%.

What is the rainiest month in Perez?

December is the month with the most rainfall. Rain falls for 8.1 days and accumulates 1.69" (43mm) of precipitation.

How many days does it rain in December in Perez?

In Perez, California, in December, during 8.1 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When does it snow the most in Perez?

December is the month with the most snowfall in Perez. Snow falls for 12.4 days and accumulates 8.27" (210mm) of snow.

How many days does it snow in December in Perez?

In Perez, in December, snow falls for 12.4 days, with typically accumulated 8.27" (210mm) of snow.

What is the month with the shortest days in Perez?

The month with the shortest days in Perez, California, is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Perez have in December?

The average day length in December in Perez, California, is 9h and 13min.

When is the sunrise / sunset in December in Perez?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:44 pm PST.

What is the month with the least sunshine in Perez?

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

How long on average sun shines in December in Perez?

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

When is the lowest UV index in Perez?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Perez.

How high is the UV index in December in Perez?

The average daily maximum UV index in December in Perez is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Perez, CA

Average temperature in December - Perez, CA
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in December: 23.2°F

The month with the highest average low temperature is July (52.5°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).

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Average pressure in December
Perez, CA

Average pressure in December - Perez, CA
  • Average pressure in December: 30.18"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Perez, CA

Average wind speed in December - Perez, CA
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in December
Perez, CA

Average humidity in December - Perez, CA
  • Average humidity in December: 79%

The months with the highest relative humidity are January and December (79%).
The month with the lowest relative humidity is August (34%).

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Average rainfall in December
Perez, CA

Average rainfall in December - Perez, CA
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is December (1.69").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in December
Perez, CA

Average rainfall days in December - Perez, CA
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is July (2.5 days).

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Average snowfall in December
Perez, CA

Average snowfall in December - Perez, CA
  • Average snowfall in December: 8.27"

The month with the highest snowfall is December (8.27").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Perez, CA

Average snowfall days in December - Perez, CA
  • Average snowfall days in December: 12.4 days

The month with the highest number of snowfall days is December (12.4 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Perez, CA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • 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).

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Average sunshine days in December
Perez, CA

Average sunshine days in December - Perez, CA
  • Average sunshine days in December: 14.8 days

The months with the most sunshine days are July and August (26.3 days).
The month with the least sunshine days is March (13.2 days).

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Average UV index in December
Perez, CA

Average UV index in December - Perez, CA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Perez, CA

Average cloud cover in December - Perez, CA
  • Average cloud cover in December: 43

The months with the most cloud cover are March and December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in December
Perez, CA

Average visibility in December - Perez, CA
  • Average visibility in December: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

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Perez, California, USA

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