December weather forecast
Dee, OR

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Weather in December

The first month of the winter, December, is also an icy month in Dee, Oregon, with an average temperature fluctuating between 36°F (2.2°C) and 27°F (-2.8°C).

Temperature

In Dee, the lowest average temperatures are observed in December, with a high of 36°F (2.2°C) and a low of 27°F (-2.8°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 88%.

Rainfall

In Dee, in December, during 17.9 rainfall days, 5.08" (129mm) of precipitation is typically accumulated. In Dee, Oregon, during the entire year, the rain falls for 159.7 days and collects up to 31.42" (798mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Dee, Oregon, during December, snow falls for 4.1 days and regularly aggregates up to 3.66" (93mm) of snow. In Dee, during the entire year, snow falls for 15.1 days and aggregates up to 14.33" (364mm) of snow.

Daylight

December has the shortest days of the year in Dee, Oregon, with an average of 8h and 48min of daylight.
On the first day of December, sunrise is at 7:27 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:32 pm PST.

Sunshine

In Dee, the average sunshine in December is 3.9h.

UV index

In December, the average daily maximum UV index in Dee is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What part of the year is the coldest in Dee?

The coldest temperatures in Dee, Oregon, occur during December, when averages reach a peak of 36°F (2.2°C) and a low of 27°F (-2.8°C).

How cold is December in Dee?

Dee in December has an average high-temperature of 36°F (2.2°C) and an average low-temperature of 27°F (-2.8°C).

What are the most humid months in Dee?

February and December, with an average relative humidity of 88%, are most humid months in Dee, Oregon.

What is the average humidity in December in Dee?

In December, the average relative humidity is 88%.

How many days does it rain in December in Dee?

In Dee, Oregon, in December, during 17.9 rainfall days, 5.08" (129mm) of precipitation is typically accumulated.

How many days does it snow in December in Dee?

In Dee, Oregon, during December, snow falls for 4.1 days and regularly aggregates up to 3.66" (93mm) of snow.

What is the month with the shortest days in Dee?

The month with the shortest days is December, with an average of 8h and 48min of daylight.

What is the average length of the day in December in Dee?

In December, the average day length is 8h and 46min.

What time are sunrise and sunset in December in Dee?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:32 pm PST.

How many hours of sunshine does Dee have in December?

In Dee, Oregon, the average sunshine duration in December is 3.9h.

What is the UV index intensity in December in Dee?

In December, the average daily maximum UV index in Dee, Oregon, is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Dee, OR

Average temperature in December - Dee, OR
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (36°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (27°F).

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Average pressure in December
Dee, OR

Average pressure in December - Dee, OR
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).

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Average wind speed in December
Dee, OR

Average wind speed in December - Dee, OR
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).

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Average humidity in December
Dee, OR

Average humidity in December - Dee, OR
  • Average humidity in December: 88%

The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (59%).

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Average rainfall in December
Dee, OR

Average rainfall in December - Dee, OR
  • Average rainfall in December: 5.08"

The wettest month (with the highest rainfall) is January (5.67").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in December
Dee, OR

Average rainfall days in December - Dee, OR
  • Average rainfall days in December: 17.9 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (4.2 days).

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Average snowfall in December
Dee, OR

Average snowfall in December - Dee, OR
  • Average snowfall in December: 3.66"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Dee, OR

Average snowfall days in December - Dee, OR
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is December (4.1 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
Dee, OR

Average daylight in December / Average sunshine in December - Dee, 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Dee, OR

Average sunshine days in December - Dee, OR
  • Average sunshine days in December: 9.8 days

The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (8.4 days).

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Average UV index in December
Dee, OR

Average UV index in December - Dee, 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 and November (UV index 1).

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Average cloud cover in December
Dee, OR

Average cloud cover in December - Dee, OR
  • Average cloud cover in December: 62

The months with the most cloud cover are January and February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 17).

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Average visibility in December
Dee, OR

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

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Dee, Oregon, USA

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