December weather forecast
Redding, CA

Weather in December

December, the first month of the winter in Redding, is still a cool month, with an average temperature fluctuating between 50.9°F (10.5°C) and 36.7°F (2.6°C).

Temperature

With an average high-temperature of 50.9°F (10.5°C) and an average low-temperature of 36.7°F (2.6°C), December is the coldest month.

Humidity

In December, the average relative humidity in Redding is 71%.

Rainfall

In Redding, in December, it is raining for 11.8 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 92.2 rainfall days, and 20.16" (512mm) of precipitation is accumulated.

Snowfall

Months with snowfall are February, March and December. The month with the most snowfall is December, when snow falls for 0.2 days and typically aggregates up to 0.31" (8mm) of snow.

Daylight

December has the shortest days of the year in Redding, with an average of 9h and 20min of daylight.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:52 pm PST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Redding?

With an average high-temperature of 50.9°F (10.5°C) and an average low-temperature of 36.7°F (2.6°C), December is the coldest month.

What is the average humidity in December in Redding?

In December, the average relative humidity in Redding is 71%.

How much does it rain in Redding in December?

In Redding, California, in December, it is raining for 11.8 days, with typically 2.95" (75mm) of accumulated precipitation.

What is the snowiest month in Redding?

The month with the most snowfall in Redding, California, is December, when snow falls for 0.2 days and typically aggregates up to 0.31" (8mm) of snow.

When does it start to snow in Redding?

December is the first month it typically snows in Redding. Throughout December, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow.

What is the month with the shortest days in Redding?

December has the shortest days of the year in Redding, California, with an average of 9h and 20min of daylight.

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

In Redding, California, the average day length in December is 9h and 20min.

What time are sunrise and sunset in December in Redding?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 4:43 pm. On the last day of the month, in Redding, California, sunrise is at 7:32 am and sunset at 4:52 pm PST.

What is the month with the least sunshine in Redding?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

How long on average sun shines in December in Redding?

The average sunshine duration in December in Redding is 5.5h.

What is the UV index reading in December in Redding?

The average daily maximum UV index in December in Redding is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.

Average temperature in December
Redding, CA

Average temperature in December - Redding, CA
  • Average high temperature in December: 50.9°F

The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (50.9°F).

  • Average low temperature in December: 36.7°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is December (36.7°F).

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Average pressure in December
Redding, CA

Average pressure in December - Redding, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

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Average wind speed in December
Redding, CA

Average wind speed in December - Redding, CA
  • Average wind speed in December: 4.5mph

The windiest months (with the highest average wind speed) are March and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.3mph).

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Average humidity in December
Redding, CA

Average humidity in December - Redding, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is August (33%).

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Average rainfall in December
Redding, CA

Average rainfall in December - Redding, CA
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is March (3.94").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in December
Redding, CA

Average rainfall days in December - Redding, CA
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall in December
Redding, CA

Average snowfall in December - Redding, CA
  • Average snowfall in December: 0.31"

The month with the highest snowfall is December (0.31").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Redding, CA

Average snowfall days in December - Redding, CA
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Redding, CA
  • Average daylight in December: 9h and 20min

The month with the longest days is June (Average daylight: 15h and 2min).
The month with the shortest days is December (Average daylight: 9h and 20min).

  • Average sunshine in December: 5.5h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in December
Redding, CA

Average sunshine days in December - Redding, CA
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (13.5 days).

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Average UV index in December
Redding, CA

Average UV index in December - Redding, CA
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is February (UV index 2).

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Average cloud cover in December
Redding, CA

Average cloud cover in December - Redding, CA
  • Average cloud cover in December: 39

The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in December
Redding, CA

Average visibility in December - Redding, CA
  • Average visibility in December: 6mi

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

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