December weather forecast
Crescent Mills, CA

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Weather in December

The first month of the winter, December, is also an icy month in Crescent Mills, California, with an average temperature ranging between min 23.4°F (-4.8°C) and max 39.2°F (4°C).

Temperature

Crescent Mills's coldest weather arrives in December, when temperatures average a high of 39.2°F (4°C) and a low of 23.4°F (-4.8°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

The months with the most rainfall are February and December, with an average 4.06" (103mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, in Crescent Mills, California, it is snowing for 7.8 days. Throughout December, 11.3" (287mm) of snow is accumulated. In Crescent Mills, during the entire year, snow falls for 37.7 days and aggregates up to 56.02" (1423mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:48 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. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

With average temperatures fluctuating between a high of 39.2°F (4°C) and a low of 23.4°F (-4.8°C), December stands out as the coldest month.

Is it cold during December?

An average high-temperature, in December, in Crescent Mills, is 39.2°F (4°C) and the average low-temperature is 23.4°F (-4.8°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 82.4°F (28°C).

What is the average humidity in December?

In Crescent Mills, the average relative humidity in December is 78%.

What is the rainiest month in Crescent Mills?

The wettest months are February and December, with an average 4.06" (103mm) of rainfall.

How much does it rain in December?

In Crescent Mills, in December, it is raining for 11.2 days, with typically 4.06" (103mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 7.8 days. Throughout December, 11.3" (287mm) of snow is accumulated.

What is the month with the shortest days in Crescent Mills?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 23min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:48 pm PST.

How many hours of sunshine does Crescent Mills have in December?

In December, the average sunshine duration is 5.5h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Crescent Mills, CA

Average temperature in December - Crescent Mills, CA
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).

  • Average low temperature in December: 23.4°F

The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).

Average pressure in December
Crescent Mills, CA

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

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Crescent Mills, CA

Average wind speed in December - Crescent Mills, CA
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is March (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Crescent Mills, CA

Average humidity in December - Crescent Mills, CA
  • Average humidity in December: 78%

The months with the highest relative humidity are January and March (81%).
The month with the lowest relative humidity is July (41%).

Average rainfall in December
Crescent Mills, CA

Average rainfall in December - Crescent Mills, CA
  • Average rainfall in December: 4.06"

The wettest months (with the highest rainfall) are February and December (4.06").
The driest month (with the least rainfall) is July (0.12").

Average rainfall days in December
Crescent Mills, CA

Average rainfall days in December - Crescent Mills, CA
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).

Average snowfall in December
Crescent Mills, CA

Average snowfall in December - Crescent Mills, CA
  • Average snowfall in December: 11.3"

The month with the highest snowfall is February (13.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Crescent Mills, CA

Average snowfall days in December - Crescent Mills, CA
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Crescent Mills, CA

Average daylight in December / Average sunshine in December - Crescent Mills, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • 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
Crescent Mills, CA

Average sunshine days in December - Crescent Mills, CA
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (12.3 days).

Average UV index in December
Crescent Mills, CA

Average UV index in December - Crescent Mills, 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
Crescent Mills, CA

Average cloud cover in December - Crescent Mills, CA
  • Average cloud cover in December: 40

The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in December
Crescent Mills, CA

Average visibility in December - Crescent Mills, CA
  • Average visibility in December: 5mi

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

Crescent Mills, California, USA

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