December weather forecast
Redondo, WA

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Weather in December

The first month of the winter, December, is also an icy month in Redondo, Washington, with an average temperature fluctuating between 34.2°F (1.2°C) and 42.6°F (5.9°C).

Temperature

December brings the lowest temperatures, with an average high of 42.6°F (5.9°C) and an average low of 34.2°F (1.2°C).

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 86%.

Rainfall

December is the month with the most rainfall. Rain falls for 18.2 days and accumulates 4.72" (120mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Redondo, in December, during 2.1 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Redondo, during the entire year, snow falls for 13.3 days and aggregates up to 7.01" (178mm) of snow.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:56 am and sunset at 4:29 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 4.2h of sunshine.

UV index

The months with the lowest UV index in Redondo are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

The coldest period in Redondo tends to be December, when average temperatures fluctuate between a high of 42.6°F (5.9°C) and a low of 34.2°F (1.2°C).

How cold does it get in December?

The high-temperature, in December, in Redondo, is 42.6°F (5.9°C), while the low-temperature averages to 34.2°F (1.2°C).

What is the most humid month?

The months with the highest humidity are January and December, with an average relative humidity of 86%.

What is the average humidity in December?

In December, the average relative humidity is 86%.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 18.2 days and typically aggregates up to 4.72" (120mm) of precipitation.

How many days does it rain in December in Redondo?

In December, the rain falls for 18.2 days. Throughout December, 4.72" (120mm) of precipitation is accumulated.

How many days does it snow in December?

In Redondo, in December, during 2.1 snowfall days, 0.59" (15mm) of snow is typically accumulated.

What is the month with the shortest days in Redondo?

With an average of 8h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Redondo, the average day length in December is 8h and 32min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:36 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:29 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.2h of sunshine.

How many hours of sunshine does Redondo have in December?

In December, the average sunshine duration is 4.2h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Redondo, WA

Average temperature in December - Redondo, WA
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

Average pressure in December
Redondo, WA

Average pressure in December - Redondo, WA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in December
Redondo, WA

Average wind speed in December - Redondo, WA
  • Average wind speed in December: 4.5mph

The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

Average humidity in December
Redondo, WA

Average humidity in December - Redondo, WA
  • Average humidity in December: 86%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (68%).

Average rainfall in December
Redondo, WA

Average rainfall in December - Redondo, WA
  • Average rainfall in December: 4.72"

The wettest month (with the highest rainfall) is December (4.72").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in December
Redondo, WA

Average rainfall days in December - Redondo, WA
  • Average rainfall days in December: 18.2 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (5.9 days).

Average snowfall in December
Redondo, WA

Average snowfall in December - Redondo, WA
  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Redondo, WA

Average snowfall days in December - Redondo, WA
  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Redondo, WA

Average daylight in December / Average sunshine in December - Redondo, WA
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in December
Redondo, WA

Average sunshine days in December - Redondo, WA
  • Average sunshine days in December: 10.4 days

The month with the most sunshine days is August (22.8 days).
The months with the least sunshine days are February and November (8.5 days).

Average UV index in December
Redondo, WA

Average UV index in December - Redondo, WA
  • 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, November and December (UV index 2).

Average cloud cover in December
Redondo, WA

Average cloud cover in December - Redondo, WA
  • Average cloud cover in December: 57

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Redondo, WA

Average visibility in December - Redondo, WA
  • Average visibility in December: 5mi

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

Redondo, Washington, USA

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