December weather forecast
Copic, CA

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Weather in December

The first month of the winter, December, is also a wintry month in Copic, California, with an average temperature fluctuating between 25°F (-3.9°C) and 37.2°F (2.9°C).

Temperature

In Copic, California, the lowest average temperatures are observed in December, with a high of 37.2°F (2.9°C) and a low of 25°F (-3.9°C).

Humidity

The average relative humidity in December is 82%.

Rainfall

December is the month with the most rainfall. Rain falls for 10 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. December is the month with the most snowfall in Copic. Snow falls for 13.4 days and accumulates 9.57" (243mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:35 pm. On the last day of December, in Copic, sunrise is at 7:32 am and sunset at 4:44 pm PST.

Sunshine

The average sunshine in December is 5.5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Copic. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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 Copic?

December is the month when Copic experiences its coldest temperatures, averaging a high of 37.2°F (2.9°C) and a low of 25°F (-3.9°C).

How cold is December in Copic?

The high-temperature, in December, in Copic, is 37.2°F (2.9°C), while the low-temperature averages to 25°F (-3.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 82.4°F (28°C).

What is the average humidity in December in Copic?

The average relative humidity in December in Copic is 82%.

What is the rainiest month in Copic?

December is the month with the most rainfall in Copic. Rain falls for 10 days and accumulates 1.97" (50mm) of precipitation.

How much does it rain in Copic in December?

In Copic, in December, it is raining for 10 days, with typically 1.97" (50mm) of accumulated precipitation.

When does it snow the most in Copic?

December is the month with the most snowfall in Copic, California. Snow falls for 13.4 days and accumulates 9.57" (243mm) of snow.

How many days does it snow in December in Copic?

In Copic, in December, snow falls for 13.4 days, with typically accumulated 9.57" (243mm) of snow.

What is the month with the shortest days in Copic?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Copic.

What is the average length of the day in December in Copic?

In December, the average day length is 9h and 11min.

When is the sunrise / sunset in December in Copic?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:44 pm PST.

How many hours of sunshine does Copic have in December?

In December, the average sunshine duration in Copic, California, is 5.5h.

When is the lowest UV index in Copic?

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

What is the UV index intensity in December in Copic?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Copic, CA

Average temperature in December - Copic, CA
  • Average high temperature in December: 37.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (25°F).

Average pressure in December
Copic, CA

Average pressure in December - Copic, CA
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.96"Hg).

Average wind speed in December
Copic, CA

Average wind speed in December - Copic, CA
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Copic, CA

Average humidity in December - Copic, CA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (47%).

Average rainfall in December
Copic, CA

Average rainfall in December - Copic, CA
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in December
Copic, CA

Average rainfall days in December - Copic, CA
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (3.1 days).

Average snowfall in December
Copic, CA

Average snowfall in December - Copic, CA
  • Average snowfall in December: 9.57"

The month with the highest snowfall is December (9.57").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Copic, CA

Average snowfall days in December - Copic, CA
  • Average snowfall days in December: 13.4 days

The month with the highest number of snowfall days is December (13.4 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Copic, 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 3min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in December
Copic, CA

Average sunshine days in December - Copic, CA
  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.5 days).

Average UV index in December
Copic, CA

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

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

Average cloud cover in December
Copic, CA

Average cloud cover in December - Copic, CA
  • Average cloud cover in December: 44

The months with the most cloud cover are March and December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 8).

Average visibility in December
Copic, CA

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Copic, California, USA

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