December weather forecast
Shaniko, OR

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Weather in December

The first month of the winter, December, is also a wintry month in Shaniko, Oregon, with an average temperature fluctuating between 37.9°F (3.3°C) and 26.2°F (-3.2°C).

Temperature

Shaniko experiences its lowest average temperatures in December, reaching a peak of 37.9°F (3.3°C) and a minimum of 26.2°F (-3.2°C).

Humidity

The most humid month is December, with an average relative humidity of 81%.

Rainfall

December is the month with the most rainfall. Rain falls for 12.4 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

January through May, September, November and December are months with snowfall. In Shaniko, during December, snow falls for 9.1 days and regularly aggregates up to 3.94" (100mm) of snow. In Shaniko, during the entire year, snow falls for 35.3 days and aggregates up to 17.6" (447mm) of snow.

Daylight

December has the shortest days of the year in Shaniko, with an average of 8h and 48min of daylight.
On the first day of December, sunrise is at 7:21 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:31 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

In Shaniko, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is most powerful around mid-day, so it's a good practice to reduce direct 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.

Frequently asked questions

What time of the year is the coldest?

In Shaniko, the average lowest temperatures are observed in December, with a high of 37.9°F (3.3°C) and a low of 26.2°F (-3.2°C).

Is December cold?

The high-temperature, in December, in Shaniko, is 37.9°F (3.3°C), while the low-temperature averages to 26.2°F (-3.2°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 82.4°F (28°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 81%.

What is the average humidity in December?

In December, the average relative humidity is 81%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 12.4 days and accumulates 1.69" (43mm) of precipitation.

How much does it rain in December?

In December, the rain falls for 12.4 days. Throughout December, 1.69" (43mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 9.1 days. Throughout December, 3.94" (100mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

What is the average length of the day in December?

In December, the average day length is 8h and 50min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:21 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:31 pm PST.

What is the month with the least sunshine?

With an average of 5.3h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Shaniko, the average sunshine duration in December is 5.3h.

What is the UV index reading in December?

In Shaniko, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Shaniko, OR

Average temperature in December - Shaniko, OR
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (37.9°F).

  • Average low temperature in December: 26.2°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).

Average pressure in December
Shaniko, OR

Average pressure in December - Shaniko, OR
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

Average wind speed in December
Shaniko, OR

Average wind speed in December - Shaniko, OR
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Shaniko, OR

Average humidity in December - Shaniko, OR
  • Average humidity in December: 81%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (48%).

Average rainfall in December
Shaniko, OR

Average rainfall in December - Shaniko, OR
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is December (1.69").
The driest month (with the least rainfall) is July (0.2").

Average rainfall days in December
Shaniko, OR

Average rainfall days in December - Shaniko, OR
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (3 days).

Average snowfall in December
Shaniko, OR

Average snowfall in December - Shaniko, OR
  • Average snowfall in December: 3.94"

The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and October (0").

Average snowfall days in December
Shaniko, OR

Average snowfall days in December - Shaniko, OR
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is December (9.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Shaniko, OR

Average daylight in December / Average sunshine in December - Shaniko, OR
  • Average daylight in December: 8h and 5min

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

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in December
Shaniko, OR

Average sunshine days in December - Shaniko, OR
  • Average sunshine days in December: 13 days

The month with the most sunshine days is July (26 days).
The month with the least sunshine days is February (10.9 days).

Average UV index in December
Shaniko, OR

Average UV index in December - Shaniko, OR
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in December
Shaniko, OR

Average cloud cover in December - Shaniko, OR
  • Average cloud cover in December: 46

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).

Average visibility in December
Shaniko, OR

Average visibility in December - Shaniko, OR
  • Average visibility in December: 5mi

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

Shaniko, Oregon, USA

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