December weather forecast
Adel, OR

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Weather in December

The first month of the winter, December, is still a cold month in Adel, Oregon, with an average temperature fluctuating between 21.9°F (-5.6°C) and 34.3°F (1.3°C).

Temperature

The coldest period is December, when temperatures fluctuate between an average high of 34.3°F (1.3°C) and a low of 21.9°F (-5.6°C).

Humidity

The months with the highest humidity in Adel are January and December, with an average relative humidity of 81%.

Rainfall

December is the month with the most rainfall. Rain falls for 7.5 days and accumulates 2.28" (58mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Adel. The month with the most snowfall in Adel is December, when snow falls for 14.8 days and typically aggregates up to 13.35" (339mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:09 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:37 pm PST.

Sunshine

December has the least sunshine of the year in Adel, with an average of 5.4h of sunshine.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What month is the coldest in Adel?

The coldest temperatures occur during December, when averages reach a peak of 34.3°F (1.3°C) and a low of 21.9°F (-5.6°C).

How cold is December in Adel?

The high-temperature, in December, in Adel, records 34.3°F (1.3°C), while the low-temperature is 21.9°F (-5.6°C).

What are the most humid months in Adel?

January and December, with an average relative humidity of 81%, are most humid months.

What is the average humidity in December in Adel?

In December, the average relative humidity in Adel, Oregon, is 81%.

What is the wettest month in Adel?

The month with the most rainfall in Adel is December, when the rain falls for 7.5 days and typically aggregates up to 2.28" (58mm) of precipitation.

How many days does it rain in December in Adel?

In Adel, during December, the rain falls for 7.5 days and regularly aggregates up to 2.28" (58mm) of precipitation.

What is the snowiest month in Adel?

December is the month with the most snowfall. Snow falls for 14.8 days and accumulates 13.35" (339mm) of snow.

How much does it snow in Adel in December?

In December, it is snowing for 14.8 days. Throughout December, 13.35" (339mm) of snow is accumulated.

What is the month with the shortest days in Adel?

The month with the shortest days in Adel is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Adel have in December?

In Adel, Oregon, the average day length in December is 9h and 10min.

When are sunrise and sunset in December in Adel?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:28 pm. On the last day of the month, in Adel, Oregon, sunrise is at 7:28 am and sunset at 4:37 pm PST.

What is the month with the least sunshine in Adel?

The month with the least sunshine in Adel, Oregon, is December, with an average of 5.4h of sunshine.

How many hours of sunshine does Adel have in December?

The average sunshine duration in December in Adel is 5.4h.

When is the lowest UV index in Adel?

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

What is the UV index intensity in December in Adel?

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

Average temperature in December - Adel, OR
  • Average high temperature in December: 34.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (34.3°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure in December
Adel, OR

Average pressure in December - Adel, OR
  • Average pressure in December: 30.19"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).

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Average wind speed in December
Adel, OR

Average wind speed in December - Adel, OR
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in December
Adel, OR

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

The months with the highest relative humidity are January and December (81%).
The month with the lowest relative humidity is August (36%).

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Average rainfall in December
Adel, OR

Average rainfall in December - Adel, OR
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is December (2.28").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days in December
Adel, OR

Average rainfall days in December - Adel, OR
  • Average rainfall days in December: 7.5 days

The months with the highest number of rainy days are March, April and May (11.8 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in December
Adel, OR

Average snowfall in December - Adel, OR
  • Average snowfall in December: 13.35"

The month with the highest snowfall is December (13.35").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Adel, OR

Average snowfall days in December - Adel, OR
  • Average snowfall days in December: 14.8 days

The month with the highest number of snowfall days is December (14.8 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Adel, OR
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • 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 24min).

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Average sunshine days in December
Adel, OR

Average sunshine days in December - Adel, OR
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (11.8 days).

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Average UV index in December
Adel, OR

Average UV index in December - Adel, 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, March, November and December (UV index 2).

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Average cloud cover in December
Adel, OR

Average cloud cover in December - Adel, OR
  • Average cloud cover in December: 45

The months with the most cloud cover are March and December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in December
Adel, OR

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

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

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Adel, Oregon, USA

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