December weather forecast and climate
Seiad Valley, CA

Weather in December

The first month of the winter, December, is still a chilly month in Seiad Valley, California, with average temperature ranging between min 28.9°F (-1.7°C) and max 43.5°F (6.4°C).

Temperature

With an average high-temperature of 43.5°F (6.4°C) and an average low-temperature of 28.9°F (-1.7°C), December is the coldest month.

Humidity

January and December, with an average relative humidity of 84%, are most humid months.

Rainfall

In Seiad Valley, during 8.9 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Seiad Valley, during the entire year, the rain falls for 92.5 days and collects up to 12.09" (307mm) of precipitation.

Snowfall

Months with snowfall in Seiad Valley are January through May, October through December. The month with the most snowfall in Seiad Valley is December when snow falls for 6.7 days and typically aggregates up to 6.3" (160mm) of snow.

Daylight

December has the shortest days of the year in Seiad Valley, with an average of 9.2h of daylight.

Sunshine

Months with the least sunshine in Seiad Valley are January and December, with an average of 5h of sunshine.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Seiad Valley?

With an average high-temperature of 43.5°F (6.4°C) and an average low-temperature of 28.9°F (-1.7°C), December is the coldest month.

What is the temperature in December in Seiad Valley?

In Seiad Valley, California, in December, the average high-temperature is 43.5°F (6.4°C), and the average low-temperature is 28.9°F (-1.7°C).

What is the most humid month in Seiad Valley?

January and December, with an average relative humidity of 84%, are most humid months in Seiad Valley.

What is the average humidity in December in Seiad Valley?

The average relative humidity in December is 84%.

How much does it rain in Seiad Valley in December?

In December, in Seiad Valley, the rain falls for 8.9 days. Throughout December, 1.73" (44mm) of precipitation is accumulated.

How many days does it snow in December in Seiad Valley?

In Seiad Valley, in December, during 6.7 snowfall days, 6.3" (160mm) of snow is typically accumulated.

What is the snowiest month in Seiad Valley?

December is the month with the most snowfall. Snow falls for 6.7 days and accumulates 6.3" (160mm) of snow.

What is the month with the shortest days in Seiad Valley?

December has the shortest days of the year in Seiad Valley, California, with an average of 9.2h of daylight.

What is the average length of the day in December in Seiad Valley?

In December, the average length of the day in Seiad Valley, California, is 9.2h.

What is the month with the least sunshine in Seiad Valley?

January and December, with an average of 5h of sunshine, are months with the least sunshine in Seiad Valley, California.

How many hours of sunshine does Seiad Valley have in December?

In Seiad Valley, California, the average sunshine in December is 5h.

When is the lowest UV index in Seiad Valley?

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Seiad Valley?

In Seiad Valley, California, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.

Average temperature in December
Seiad Valley, CA

Average temperature in December - Seiad Valley, CA
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (43.5°F).

  • Average low temperature in December: 28.9°F

Months with the highest average low temperature are July and August (49.5°F).
The coldest month (with the lowest average low temperature) is December (28.9°F).

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Average pressure in December
Seiad Valley, CA

Average pressure in December - Seiad Valley, CA
  • Average pressure in December: 30.13"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is August (29.98").

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Average wind speed in December
Seiad Valley, CA

Average wind speed in December - Seiad Valley, CA
  • Average wind speed in December: 4mph

The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in December
Seiad Valley, CA

Average humidity in December - Seiad Valley, CA
  • Average humidity in December: 84%

Months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in December
Seiad Valley, CA

Average rainfall in December - Seiad Valley, CA
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is January (2.01").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in December
Seiad Valley, CA

Average rainfall days in December - Seiad Valley, CA
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in December
Seiad Valley, CA

Average snowfall in December - Seiad Valley, CA
  • Average snowfall in December: 6.3"

The month with the highest snowfall is December (6.3").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Seiad Valley, CA

Average snowfall days in December - Seiad Valley, CA
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is February (7.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Seiad Valley, CA

Average daylight in December / Average sunshine in December - Seiad Valley, CA
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 5h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
Months with the least sunshine are January and December (Average sunshine: 5).

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Average sunshine days in December
Seiad Valley, CA

Average sunshine days in December - Seiad Valley, CA
  • Average sunshine days in December: 17.2 days

Months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is March (15 days).

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Average UV index in December
Seiad Valley, CA

Average UV index in December - Seiad Valley, CA
  • Average UV index in December: 2

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

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Average cloud cover in December
Seiad Valley, CA

Average cloud cover in December - Seiad Valley, CA
  • Average cloud cover in December: 51

The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in December
Seiad Valley, CA

Average visibility in December - Seiad Valley, CA
  • Average visibility in December: 4mi

Months with the highest visibility are July, August and September (6mi).
Months with the lowest visibility are January, February, March, April and December (4mi).

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