December weather forecast
Chilcoot, CA

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Weather in December

December, the first month of the winter in Chilcoot, is also an icy month, with an average temperature fluctuating between 37.2°F (2.9°C) and 21.6°F (-5.8°C).

Temperature

Chilcoot, California, records the coldest temperatures in December, averaging a high of 37.2°F (2.9°C) and a low of 21.6°F (-5.8°C).

Humidity

The average relative humidity in December in Chilcoot is 79%.

Rainfall

In December, in Chilcoot, the rain falls for 6.8 days. Throughout December, 3.66" (93mm) of precipitation is accumulated. In Chilcoot, during the entire year, the rain falls for 80.1 days and collects up to 22.95" (583mm) of precipitation.

Snowfall

Months with snowfall in Chilcoot are January through June, September through December. December is the month with the most snowfall. Snow falls for 12.8 days and accumulates 22.52" (572mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Chilcoot.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:36 pm. On the last day of December, in Chilcoot, California, sunrise is at 7:21 am and sunset at 4:46 pm PST.

Sunshine

The average sunshine in December in Chilcoot, California, is 5.2h.

UV index

In Chilcoot, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What are the coldest months in Chilcoot?

December, with average temperatures reaching a high of 37.2°F (2.9°C) and a low of 21.6°F (-5.8°C), is the coldest month.

How cold is it in Chilcoot in December?

An average high-temperature, in December, in Chilcoot, is 37.2°F (2.9°C) and the average low-temperature is 21.6°F (-5.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 80.6°F (27°C).

What is the average humidity in December in Chilcoot?

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

How much does it rain in Chilcoot in December?

In Chilcoot, California, in December, it is raining for 6.8 days, with typically 3.66" (93mm) of accumulated precipitation.

When does it snow the most in Chilcoot?

December is the month with the most snowfall. Snow falls for 12.8 days and accumulates 22.52" (572mm) of snow.

How many days does it snow in December in Chilcoot?

In Chilcoot, California, in December, snow falls for 12.8 days, with typically accumulated 22.52" (572mm) of snow.

What is the month with the shortest days in Chilcoot?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Chilcoot have in December?

The average day length in December is 9h and 25min.

When are sunrise and sunset in December in Chilcoot?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:36 pm. On the last day of the month, in Chilcoot, sunrise is at 7:21 am and sunset at 4:46 pm PST.

How long on average sun shines in December in Chilcoot?

In Chilcoot, California, the average sunshine duration in December is 5.2h.

What is the UV index reading in December in Chilcoot?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
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
Chilcoot, CA

Average temperature in December - Chilcoot, 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: 21.6°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).

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Average pressure in December
Chilcoot, CA

Average pressure in December - Chilcoot, 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).

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Average wind speed in December
Chilcoot, CA

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

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).

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Average humidity in December
Chilcoot, CA

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

The months with the highest relative humidity are January and March (81%).
The months with the lowest relative humidity are July and August (40%).

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Average rainfall in December
Chilcoot, CA

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

The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in December
Chilcoot, CA

Average rainfall days in December - Chilcoot, CA
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).

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Average snowfall in December
Chilcoot, CA

Average snowfall in December - Chilcoot, CA
  • Average snowfall in December: 22.52"

The month with the highest snowfall is December (22.52").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Chilcoot, CA

Average snowfall days in December - Chilcoot, CA
  • Average snowfall days in December: 12.8 days

The month with the highest number of snowfall days is March (14.7 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
Chilcoot, CA

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

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 24min).

  • Average sunshine in December: 5h and 1min

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

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Average sunshine days in December
Chilcoot, CA

Average sunshine days in December - Chilcoot, CA
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).

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Average UV index in December
Chilcoot, CA

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

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in December
Chilcoot, CA

Average cloud cover in December - Chilcoot, CA
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in December
Chilcoot, CA

Average visibility in December - Chilcoot, CA
  • Average visibility in December: 4mi

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

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Chilcoot, California, USA

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