December weather forecast
Donald, OR

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Weather in December

December, the first month of the winter in Donald, is still a chilly month, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 44.2°F (6.8°C).

Temperature

Donald's December weather, marked by an average high temperature of 44.2°F (6.8°C) and an average low temperature of 34.3°F (1.3°C), is the coldest in the year.

Humidity

The months with the highest humidity in Donald are January, February and December, with an average relative humidity of 85%.

Rainfall

December is the month with the most rainfall in Donald. Rain falls for 19.4 days and accumulates 4.49" (114mm) of precipitation.

Snowfall

Months with snowfall in Donald are January through March, November and December. In Donald, in December, snow falls for 0.8 days, with typically accumulated 0.47" (12mm) of snow. Throughout the year, there are 6.1 snowfall days, and 3.66" (93mm) of snow is accumulated.

Daylight

The month with the shortest days in Donald is December, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:30 pm. On the last day of December, in Donald, sunrise is at 7:50 am and sunset at 4:39 pm PST.

Sunshine

The average sunshine in December 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. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What time of the year is the coldest in Donald?

December, on average, is the coldest month, registering a high temperature of 44.2°F (6.8°C) and a low of 34.3°F (1.3°C).

How cold does it get in Donald in December?

Donald in December has an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 34.3°F (1.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 84.2°F (29°C).

What are the most humid months in Donald?

January, February and December, with an average relative humidity of 85%, are most humid months.

What is the average humidity in December in Donald?

In Donald, Oregon, the average relative humidity in December is 85%.

What is the rainiest month in Donald?

December is the month with the most rainfall in Donald. Rain falls for 19.4 days and accumulates 4.49" (114mm) of precipitation.

How much does it rain in Donald in December?

In December, in Donald, the rain falls for 19.4 days. Throughout December, 4.49" (114mm) of precipitation is accumulated.

How many days does it snow in December in Donald?

In Donald, Oregon, during December, snow falls for 0.8 days and regularly aggregates up to 0.47" (12mm) of snow.

What is the month with the shortest days in Donald?

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

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

In Donald, the average day length in December is 8h and 49min.

When are sunrise and sunset in December in Donald?

On the first day of December, sunrise is at 7:30 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:39 pm PST.

How many hours of sunshine does Donald have in December?

In December, the average sunshine duration in Donald is 4.3h.

What are the months with the lowest UV index in Donald?

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

What is the UV index intensity in December in Donald?

The average daily maximum UV index in December in Donald is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Donald, OR

Average temperature in December - Donald, OR
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

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Average pressure in December
Donald, OR

Average pressure in December - Donald, OR
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in December
Donald, OR

Average wind speed in December - Donald, OR
  • Average wind speed in December: 5.3mph

The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average humidity in December
Donald, OR

Average humidity in December - Donald, OR
  • Average humidity in December: 85%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in December
Donald, OR

Average rainfall in December - Donald, OR
  • Average rainfall in December: 4.49"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").

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Average rainfall days in December
Donald, OR

Average rainfall days in December - Donald, OR
  • Average rainfall days in December: 19.4 days

The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).

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Average snowfall in December
Donald, OR

Average snowfall in December - Donald, OR
  • Average snowfall in December: 0.47"

The month with the highest snowfall is February (1.26").
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
Donald, OR

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

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Donald, 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 12min).

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Average sunshine days in December
Donald, OR

Average sunshine days in December - Donald, OR
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).

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Average UV index in December
Donald, OR

Average UV index in December - Donald, 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).

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Average cloud cover in December
Donald, OR

Average cloud cover in December - Donald, OR
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in December
Donald, OR

Average visibility in December - Donald, 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).

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Donald, Oregon, USA

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