December weather forecast
Dorena, OR

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Weather in December

The first month of the winter, December, is also a frosty month in Dorena, Oregon, with an average temperature ranging between min 33.4°F (0.8°C) and max 45.9°F (7.7°C).

Temperature

December stands out as Dorena's coldest month, with an average high-temperature of 45.9°F (7.7°C) and a low-temperature of 33.4°F (0.8°C).

Humidity

The average relative humidity in December in Dorena is 86%.

Rainfall

December is the month with the most rainfall. Rain falls for 18.2 days and accumulates 4.61" (117mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Dorena, in December, during 0.8 snowfall days, 0.39" (10mm) of snow is typically accumulated. Throughout the year, there are 7.1 snowfall days, and 6.22" (158mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:44 pm PST.

Sunshine

The months with the least sunshine are February and December, with an average of 4.2h of sunshine.

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 low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Frequently asked questions

What are the coldest months?

Dorena witnesses the coldest weather in December, with temperatures averaging a high of 45.9°F (7.7°C) and a low of 33.4°F (0.8°C).

What are December temperatures?

During December, Dorena experiences an average high-temperature of 45.9°F (7.7°C) and a low-temperature of 33.4°F (0.8°C).

What is the average humidity in December?

In Dorena, the average relative humidity in December is 86%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 18.2 days and typically aggregates up to 4.61" (117mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 18.2 days. Throughout December, 4.61" (117mm) of precipitation is accumulated.

How much does it snow in December?

In Dorena, in December, snow falls for 0.8 days, with typically accumulated 0.39" (10mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

What is the average length of the day in December?

In Dorena, Oregon, the average day length in December is 8h and 59min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:44 pm PST.

What are the months with the least sunshine?

The months with the least sunshine in Dorena are February and December, with an average of 4.2h of sunshine.

How many hours of sunshine does Dorena have in December?

In Dorena, the average sunshine duration in December is 4.2h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Dorena, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Dorena, OR

Average temperature in December - Dorena, OR
  • Average high temperature in December: 45.9°F

The warmest month (with the highest average high temperature) is August (80.1°F).
The month with the lowest average high temperature is December (45.9°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

Average pressure in December
Dorena, OR

Average pressure in December - Dorena, 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
Dorena, OR

Average wind speed in December - Dorena, OR
  • Average wind speed in December: 4.3mph

The windiest month (with the highest average wind speed) is January (4.5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in December
Dorena, OR

Average humidity in December - Dorena, OR
  • Average humidity in December: 86%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall in December
Dorena, OR

Average rainfall in December - Dorena, OR
  • Average rainfall in December: 4.61"

The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.2").

Average rainfall days in December
Dorena, OR

Average rainfall days in December - Dorena, OR
  • Average rainfall days in December: 18.2 days

The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (3.6 days).

Average snowfall in December
Dorena, OR

Average snowfall in December - Dorena, OR
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Dorena, OR

Average snowfall days in December - Dorena, OR
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (2.8 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
Dorena, OR

Average daylight in December / Average sunshine in December - Dorena, OR
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The months with the least sunshine are February and December (Average sunshine: 4h and 12min).

Average sunshine days in December
Dorena, OR

Average sunshine days in December - Dorena, OR
  • Average sunshine days in December: 11.3 days

The month with the most sunshine days is July (25.8 days).
The months with the least sunshine days are February and March (9.3 days).

Average UV index in December
Dorena, OR

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Dorena, OR

Average cloud cover in December - Dorena, OR
  • Average cloud cover in December: 57

The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in December
Dorena, OR

Average visibility in December - Dorena, OR
  • Average visibility in December: 4mi

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

Dorena, Oregon, USA

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