December weather forecast
Tietonview Grange, WA

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Weather in December

The first month of the winter, December, is still a cold month in Tietonview Grange, Washington, with an average temperature ranging between max 36.9°F (2.7°C) and min 25.5°F (-3.6°C).

Temperature

Tietonview Grange's December weather, with an average high temperature of 36.9°F (2.7°C) and an average low temperature of 25.5°F (-3.6°C), tends to be the coldest of the year.

Humidity

In December, the average relative humidity in Tietonview Grange is 80%.

Rainfall

In December, the rain falls for 9.1 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. In Tietonview Grange, during the entire year, the rain falls for 82.2 days and collects up to 5.43" (138mm) of precipitation.

Snowfall

Months with snowfall are January through March, September, November and December. December is the month with the most snowfall. Snow falls for 5.4 days and accumulates 2.76" (70mm) of snow.

Daylight

The month with the shortest days in Tietonview Grange is December, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:17 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:25 pm PST.

Sunshine

In Tietonview Grange, the average sunshine in December is 5.9h.

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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What time of the year is the coldest in Tietonview Grange?

In Tietonview Grange, Washington, the average lowest temperatures are observed in December, with a high of 36.9°F (2.7°C) and a low of 25.5°F (-3.6°C).

How cold is it in Tietonview Grange in December?

December temperatures in Tietonview Grange, Washington, vary between a high-temperature of 36.9°F (2.7°C) and a low-temperature of 25.5°F (-3.6°C).

What is the average humidity in December in Tietonview Grange?

The average relative humidity in December in Tietonview Grange is 80%.

How much does it rain in Tietonview Grange in December?

In Tietonview Grange, in December, during 9.1 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

When does it snow the most in Tietonview Grange?

The month with the most snowfall in Tietonview Grange, Washington, is December, when snow falls for 5.4 days and typically aggregates up to 2.76" (70mm) of snow.

How many days does it snow in December in Tietonview Grange?

In Tietonview Grange, Washington, in December, snow falls for 5.4 days, with typically accumulated 2.76" (70mm) of snow.

What is the month with the shortest days in Tietonview Grange?

The month with the shortest days in Tietonview Grange is December, with an average of 8h and 36min of daylight.

What is the average length of the day in December in Tietonview Grange?

In December, the average day length is 8h and 38min.

When are sunrise and sunset in December in Tietonview Grange?

On the first day of December in Tietonview Grange, sunrise is at 7:27 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:25 pm PST.

How long on average sun shines in December in Tietonview Grange?

In Tietonview Grange, the average sunshine duration in December is 5.9h.

When is the lowest UV index in Tietonview Grange?

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

What is the UV index reading in December in Tietonview Grange?

In December, the average daily maximum UV index in Tietonview Grange, Washington, is 2. A UV Index value of 2, and less, symbolizes 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
Tietonview Grange, WA

Average temperature in December - Tietonview Grange, WA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).

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Average pressure in December
Tietonview Grange, WA

Average pressure in December - Tietonview Grange, WA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in December
Tietonview Grange, WA

Average wind speed in December - Tietonview Grange, WA
  • Average wind speed in December: 4.4mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

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Average humidity in December
Tietonview Grange, WA

Average humidity in December - Tietonview Grange, WA
  • Average humidity in December: 80%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).

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Average rainfall in December
Tietonview Grange, WA

Average rainfall in December - Tietonview Grange, WA
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in December
Tietonview Grange, WA

Average rainfall days in December - Tietonview Grange, WA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).

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Average snowfall in December
Tietonview Grange, WA

Average snowfall in December - Tietonview Grange, WA
  • Average snowfall in December: 2.76"

The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").

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Average snowfall days in December
Tietonview Grange, WA

Average snowfall days in December - Tietonview Grange, WA
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in December /
Average sunshine in December
Tietonview Grange, WA

Average daylight in December / Average sunshine in December - Tietonview Grange, 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: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in December
Tietonview Grange, WA

Average sunshine days in December - Tietonview Grange, WA
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).

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Average UV index in December
Tietonview Grange, WA

Average UV index in December - Tietonview Grange, WA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
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
Tietonview Grange, WA

Average cloud cover in December - Tietonview Grange, WA
  • Average cloud cover in December: 37

The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).

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Average visibility in December
Tietonview Grange, WA

Average visibility in December - Tietonview Grange, WA
  • Average visibility in December: 6mi

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

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Tietonview Grange, Washington, USA

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