Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The coldest month is December, with an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 34.3°F (1.3°C).Humidity
January, February and December, with an average relative humidity of 85%, are the most humid months in Aurora.Rainfall
The month with the most rainfall in Aurora is December, when the rain falls for 19.4 days and typically aggregates up to 4.49" (114mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Aurora, in December, snow falls for 0.8 days, with typically accumulated 0.47" (12mm) of snow. Throughout the year, in Aurora, there are 6.1 snowfall days, and 3.66" (93mm) of snow is accumulated.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.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 Aurora, sunrise is at 7:49 am and sunset at 4:38 pm PST.
Sunshine
The average sunshine in December is 4.3h.UV index
The months with the lowest UV index in Aurora, Oregon, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the coldest time of year in Aurora?
Is December cold in Aurora?
What is the most humid month in Aurora?
What is the average humidity in December in Aurora?
What is the wettest month in Aurora?
How much does it rain in Aurora in December?
How many days does it snow in December in Aurora?
What is the month with the shortest days in Aurora?
What is the average length of the day in December in Aurora?
When are sunrise and sunset in December in Aurora?
How many hours of sunshine does Aurora have in December?
When is the lowest UV index in Aurora?
What is the UV index intensity in December in Aurora?
Average temperature in December
Aurora, 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).
Average pressure in December
Aurora, 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).
Average wind speed in December
Aurora, 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).
Average humidity in December
Aurora, 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%).
Average rainfall in December
Aurora, 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").
Average rainfall days in December
Aurora, 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).
Average snowfall in December
Aurora, 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").
Average snowfall days in December
Aurora, 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).
Average daylight in December /
Average sunshine in December
Aurora, 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).
Average sunshine days in December
Aurora, 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).
Average UV index in December
Aurora, 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
Aurora, 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).
Average visibility in December
Aurora, 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).
Aurora, Oregon, USA
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