December weather forecast
Matlock, WA

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Weather in December

The first month of the winter, December, is still a cold month in Matlock, Washington, with an average temperature varying between 41.5°F (5.3°C) and 32.9°F (0.5°C).

Temperature

Matlock, Washington, reaches its lowest average temperatures in December, measuring 41.5°F (5.3°C) at the peak and 32.9°F (0.5°C) at the lowest.

Humidity

November and December, with an average relative humidity of 90%, are the most humid months in Matlock.

Rainfall

In December, the rain falls for 19.9 days. Throughout December, 7.17" (182mm) of precipitation is accumulated. Throughout the year, in Matlock, there are 185.4 rainfall days, and 42.87" (1089mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Matlock are January through March, November and December. In Matlock, in December, during 1.6 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Matlock, Washington, during the entire year, snow falls for 9.1 days and aggregates up to 5.59" (142mm) of snow.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year in Matlock.
On the first day of the month, sunrise is at 7:40 am and sunset at 4:25 pm. On the last day of December, sunrise is at 8:00 am and sunset at 4:33 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 3.5h of sunshine.

UV index

January, February, 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 minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What time of the year is the coldest in Matlock?

December is the coldest month of the year, registering average temperatures as high as 41.5°F (5.3°C) and as low as 32.9°F (0.5°C).

How cold is it in Matlock in December?

The average high-temperature, in December, in Matlock, is 41.5°F (5.3°C), while the average low-temperature is 32.9°F (0.5°C).

What is the most humid month in Matlock?

November and December, with an average relative humidity of 90%, are most humid months in Matlock, Washington.

What is the average humidity in December in Matlock?

In Matlock, the average relative humidity in December is 90%.

How much does it rain in Matlock in December?

In Matlock, in December, during 19.9 rainfall days, 7.17" (182mm) of precipitation is typically accumulated.

How many days does it snow in December in Matlock?

In December, in Matlock, it is snowing for 1.6 days. Throughout December, 0.71" (18mm) of snow is accumulated.

What is the month with the shortest days in Matlock?

December has the shortest days of the year in Matlock, with an average of 8h and 36min of daylight.

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

In December, the average day length in Matlock, Washington, is 8h and 34min.

When are sunrise and sunset in December in Matlock?

On the first day of December in Matlock, sunrise is at 7:40 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:33 pm PST.

What is the month with the least sunshine in Matlock?

December has the least sunshine of the year in Matlock, with an average of 3.5h of sunshine.

How long on average sun shines in December in Matlock?

In December, the average sunshine duration in Matlock, Washington, is 3.5h.

What are the months with the lowest UV index in Matlock?

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

What is the UV index intensity in December in Matlock?

In Matlock, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Matlock, WA

Average temperature in December - Matlock, WA
  • Average high temperature in December: 41.5°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is February (32.7°F).

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Average pressure in December
Matlock, WA

Average pressure in December - Matlock, WA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

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Average wind speed in December
Matlock, WA

Average wind speed in December - Matlock, WA
  • Average wind speed in December: 3.7mph

The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is September (3.4mph).

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Average humidity in December
Matlock, WA

Average humidity in December - Matlock, WA
  • Average humidity in December: 90%

The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in December
Matlock, WA

Average rainfall in December - Matlock, WA
  • Average rainfall in December: 7.17"

The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in December
Matlock, WA

Average rainfall days in December - Matlock, WA
  • Average rainfall days in December: 19.9 days

The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall in December
Matlock, WA

Average snowfall in December - Matlock, WA
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Matlock, WA

Average snowfall days in December - Matlock, WA
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Matlock, WA
  • Average daylight in December: 8h and 4min

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 36min).

  • Average sunshine in December: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

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Average sunshine days in December
Matlock, WA

Average sunshine days in December - Matlock, WA
  • Average sunshine days in December: 9.4 days

The month with the most sunshine days is July (21.7 days).
The month with the least sunshine days is March (7.5 days).

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Average UV index in December
Matlock, WA

Average UV index in December - Matlock, WA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Matlock, WA

Average cloud cover in December - Matlock, WA
  • Average cloud cover in December: 64

The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in December
Matlock, WA

Average visibility in December - Matlock, WA
  • Average visibility in December: 4mi

The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).

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Matlock, Washington, USA

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