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
Marion reaches its lowest average temperatures in December, measuring 44.6°F (7°C) at the peak and 34.2°F (1.2°C) at the lowest.Humidity
In Marion, the average relative humidity in December is 85%.Rainfall
The month with the most rainfall in Marion is December, when the rain falls for 18.2 days and typically aggregates up to 4.57" (116mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 1.1 days. Throughout December, 0.59" (15mm) of snow is accumulated. Throughout the year, in Marion, there are 7.7 snowfall days, and 5.59" (142mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:29 am and sunset at 4:32 pm. On the last day of December, in Marion, sunrise is at 7:48 am and sunset at 4:41 pm PST.
Sunshine
In December, the average sunshine is 4.4h.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 threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What month is the coldest in Marion?
How cold is it in Marion in December?
What is the average humidity in December in Marion?
What is the rainiest month in Marion?
How many days does it rain in December in Marion?
How many days does it snow in December in Marion?
What is the month with the shortest days in Marion?
How many hours of daylight does Marion have in December?
When are sunrise and sunset in December in Marion?
How long on average sun shines in December in Marion?
What are the months with the lowest UV index in Marion?
How high is the UV index in December in Marion?
Average temperature in December
Marion, OR
- Average high temperature in December: 44.6°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (44.6°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Marion, 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
Marion, OR
- Average wind speed in December: 5.4mph
The windiest months (with the highest average wind speed) are January and March (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Marion, OR
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Marion, OR
- Average rainfall in December: 4.57"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Marion, OR
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is July (4.1 days).
Average snowfall in December
Marion, OR
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Marion, OR
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.9 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
Marion, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Marion, OR
- Average sunshine days in December: 11.3 days
The month with the most sunshine days is July (25.2 days).
The month with the least sunshine days is March (8.4 days).
Average UV index in December
Marion, 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
Marion, 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 19).
Average visibility in December
Marion, 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).
Marion, Oregon, USA
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