December weather forecast
Tenino, WA

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Weather in December

December, the first month of the winter in Tenino, is still a chilly month, with an average temperature fluctuating between 33.3°F (0.7°C) and 42.8°F (6°C).

Temperature

In Tenino, the lowest temperatures are generally noted in December, averaging a high of 42.8°F (6°C) and a low of 33.3°F (0.7°C).

Humidity

January, February, November and December, with an average relative humidity of 89%, are the most humid months in Tenino.

Rainfall

The month with the most rainfall in Tenino is December, when the rain falls for 16.2 days and typically aggregates up to 2.8" (71mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Tenino, Washington, in December, during 1.1 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Tenino, during the entire year, snow falls for 7.9 days and aggregates up to 3.62" (92mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December in Tenino, sunrise is at 7:36 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:33 pm PST.

Sunshine

With an average of 3.7h of sunshine, December has the least sunshine of the year in Tenino.

UV index

The months with the lowest UV index 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 hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What is the coldest month in Tenino?

Tenino's December weather, marked by an average high temperature of 42.8°F (6°C) and an average low temperature of 33.3°F (0.7°C), is the coldest in the year.

Is it cold in Tenino during December?

In Tenino, in December, the average high-temperature is 42.8°F (6°C), and the average low-temperature is 33.3°F (0.7°C).

What are the most humid months in Tenino?

January, February, November and December, with an average relative humidity of 89%, are most humid months in Tenino, Washington.

What is the average humidity in December in Tenino?

In December, the average relative humidity in Tenino, Washington, is 89%.

What is the rainiest month in Tenino?

The month with the most rainfall is December, when the rain falls for 16.2 days and typically aggregates up to 2.8" (71mm) of precipitation.

How many days does it rain in December in Tenino?

In Tenino, Washington, in December, it is raining for 16.2 days, with typically 2.8" (71mm) of accumulated precipitation.

How many days does it snow in December in Tenino?

In Tenino, during December, snow falls for 1.1 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the month with the shortest days in Tenino?

With an average of 8h and 36min of daylight, December has the shortest days of the year in Tenino, Washington.

How many hours of daylight does Tenino have in December?

In December, the average day length in Tenino, Washington, is 8h and 37min.

When is the sunrise / sunset in December in Tenino?

On the first day of December, sunrise is at 7:36 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:33 pm PST.

What is the month with the least sunshine in Tenino?

December has the least sunshine of the year, with an average of 3.7h of sunshine.

How many hours of sunshine does Tenino have in December?

In Tenino, the average sunshine duration in December is 3.7h.

When is the lowest UV index in Tenino?

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

How high is the UV index in December in Tenino?

In Tenino, Washington, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average high temperature
Average max. wind speed
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
Tenino, WA

Average temperature in December - Tenino, WA
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).

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Average pressure in December
Tenino, WA

Average pressure in December - Tenino, WA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).

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Average wind speed in December
Tenino, WA

Average wind speed in December - Tenino, WA
  • Average wind speed in December: 4.2mph

The windiest months (with the highest average wind speed) are January, February, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

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Average humidity in December
Tenino, WA

Average humidity in December - Tenino, WA
  • Average humidity in December: 89%

The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in December
Tenino, WA

Average rainfall in December - Tenino, WA
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in December
Tenino, WA

Average rainfall days in December - Tenino, WA
  • Average rainfall days in December: 16.2 days

The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is August (4.7 days).

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Average snowfall in December
Tenino, WA

Average snowfall in December - Tenino, WA
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Tenino, WA

Average snowfall days in December - Tenino, WA
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (2.7 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
Tenino, WA

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).

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Average sunshine days in December
Tenino, WA

Average sunshine days in December - Tenino, WA
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is July (23 days).
The month with the least sunshine days is February (10.8 days).

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Average UV index in December
Tenino, WA

Average UV index in December - Tenino, 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
Tenino, WA

Average cloud cover in December - Tenino, WA
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in December
Tenino, WA

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

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

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Tenino, Washington, USA

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