December weather forecast
Scotts Mills, OR

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Weather in December

The first month of the winter, December, is still a chilly month in Scotts Mills, Oregon, with an average temperature ranging between min 34.2°F (1.2°C) and max 44.4°F (6.9°C).

Temperature

December is the coldest month of the year, registering average temperatures as high as 44.4°F (6.9°C) and as low as 34.2°F (1.2°C).

Humidity

The average relative humidity in December is 85%.

Rainfall

December is the month with the most rainfall. Rain falls for 18.6 days and accumulates 4.45" (113mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In December, it is snowing for 0.9 days. Throughout December, 0.55" (14mm) of snow is accumulated. Throughout the year, there are 6.2 snowfall days, and 3.74" (95mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:29 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:39 pm PST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Scotts Mills. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 during December 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. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

What part of the year is the coldest?

Scotts Mills reaches its average lowest temperatures in December, measuring 44.4°F (6.9°C) at the peak and 34.2°F (1.2°C) at the lowest.

How cold does it get in December?

In December, the average high-temperature and low-temperature are 44.4°F (6.9°C) and 34.2°F (1.2°C) respectively.

What is the average humidity in December?

In Scotts Mills, the average relative humidity in December is 85%.

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 18.6 days and accumulates 4.45" (113mm) of precipitation.

How much does it rain in December?

In Scotts Mills, in December, it is raining for 18.6 days, with typically 4.45" (113mm) of accumulated precipitation.

How many days does it snow in December?

In Scotts Mills, during December, snow falls for 0.9 days and regularly aggregates up to 0.55" (14mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Scotts Mills have in December?

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

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:29 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:39 pm PST.

How long on average sun shines in December in Scotts Mills?

In December, the average sunshine duration is 4.3h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Scotts Mills, OR

Average temperature in December - Scotts Mills, OR
  • Average high temperature in December: 44.4°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

Average pressure in December
Scotts Mills, OR

Average pressure in December - Scotts Mills, OR
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in December
Scotts Mills, OR

Average wind speed in December - Scotts Mills, OR
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is January (5.9mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December
Scotts Mills, OR

Average humidity in December - Scotts Mills, OR
  • Average humidity in December: 85%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Scotts Mills, OR

Average rainfall in December - Scotts Mills, OR
  • Average rainfall in December: 4.45"

The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in December
Scotts Mills, OR

Average rainfall days in December - Scotts Mills, OR
  • Average rainfall days in December: 18.6 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (4.3 days).

Average snowfall in December
Scotts Mills, OR

Average snowfall in December - Scotts Mills, OR
  • Average snowfall in December: 0.55"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Scotts Mills, OR

Average snowfall days in December - Scotts Mills, OR
  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Scotts Mills, OR

Average daylight in December / Average sunshine in December - Scotts Mills, 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: 4h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in December
Scotts Mills, OR

Average sunshine days in December - Scotts Mills, OR
  • Average sunshine days in December: 10.9 days

The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is February (8.5 days).

Average UV index in December
Scotts Mills, OR

Average UV index in December - Scotts Mills, OR
  • 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, November and December (UV index 2).

Average cloud cover in December
Scotts Mills, OR

Average cloud cover in December - Scotts Mills, OR
  • Average cloud cover in December: 56

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Scotts Mills, OR

Average visibility in December - Scotts Mills, OR
  • Average visibility in December: 5mi

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

Scotts Mills, Oregon, USA

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