December weather forecast
Dryden, WA

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Weather in December

December, the first month of the winter in Dryden, is still a cold month, with an average temperature ranging between max 32.5°F (0.3°C) and min 20.3°F (-6.5°C).

Temperature

Dryden experiences its lowest temperatures in December, with an average peak of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C).

Humidity

In Dryden, the average relative humidity in December is 88%.

Rainfall

In December, the rain falls for 10.2 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 113.5 rainfall days, and 12.32" (313mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Dryden, Washington, are January through April, November and December. The month with the most snowfall is December, when snow falls for 7.3 days and typically aggregates up to 4.65" (118mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:12 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:21 pm PST.

Sunshine

In Dryden, the average sunshine in December is 4.9h.

UV index

January through March, 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 unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What part of the year is the coldest in Dryden?

The coldest temperatures in Dryden, Washington, occur during December, when averages reach a peak of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C).

How cold is it in Dryden in December?

In Dryden, in December, the average high-temperature is 32.5°F (0.3°C), and the average low-temperature is 20.3°F (-6.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 82.4°F (28°C).

What is the average humidity in December in Dryden?

In December, the average relative humidity is 88%.

How many days does it rain in December in Dryden?

In Dryden, Washington, in December, it is raining for 10.2 days, with typically 1.77" (45mm) of accumulated precipitation.

What is the snowiest month in Dryden?

The month with the most snowfall in Dryden is December, when snow falls for 7.3 days and typically aggregates up to 4.65" (118mm) of snow.

How many days does it snow in December in Dryden?

In Dryden, during December, snow falls for 7.3 days and regularly aggregates up to 4.65" (118mm) of snow.

What is the month with the shortest days in Dryden?

The month with the shortest days is December, with an average of 8h and 30min of daylight.

How many hours of daylight does Dryden have in December?

The average day length in December in Dryden, Washington, is 8h and 31min.

What time are sunrise and sunset in December in Dryden?

On the first day of December in Dryden, sunrise is at 7:30 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:21 pm PST.

How many hours of sunshine does Dryden have in December?

The average sunshine duration in December in Dryden is 4.9h.

When is the lowest UV index in Dryden?

The months with the lowest UV index in Dryden are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Dryden?

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

Average temperature in December - Dryden, WA
  • Average high temperature in December: 32.5°F

The warmest months (with the highest average high temperature) are July and August (82.2°F).
The month with the lowest average high temperature is December (32.5°F).

  • Average low temperature in December: 20.3°F

The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).

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Average pressure in December
Dryden, WA

Average pressure in December - Dryden, WA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).

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Average wind speed in December
Dryden, WA

Average wind speed in December - Dryden, WA
  • Average wind speed in December: 3.4mph

The windiest months (with the highest average wind speed) are June and July (5.8mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in December
Dryden, WA

Average humidity in December - Dryden, WA
  • Average humidity in December: 88%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (49%).

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Average rainfall in December
Dryden, WA

Average rainfall in December - Dryden, WA
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is January (2.05").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days in December
Dryden, WA

Average rainfall days in December - Dryden, WA
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is March (15 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in December
Dryden, WA

Average snowfall in December - Dryden, WA
  • Average snowfall in December: 4.65"

The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Dryden, WA

Average snowfall days in December - Dryden, WA
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is December (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Dryden, 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 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in December
Dryden, WA

Average sunshine days in December - Dryden, WA
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is August (26.1 days).
The month with the least sunshine days is March (12.4 days).

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Average UV index in December
Dryden, WA

Average UV index in December - Dryden, 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, March, November and December (UV index 2).

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Average cloud cover in December
Dryden, WA

Average cloud cover in December - Dryden, WA
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in December
Dryden, WA

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

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

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Dryden, Washington, USA

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