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
In Weston, Oregon, the lowest average temperatures are observed in December, with a high of 34.5°F (1.4°C) and a low of 22.3°F (-5.4°C).Humidity
The months with the highest humidity in Weston are January, February and December, with an average relative humidity of 84%.Rainfall
In Weston, during December, the rain falls for 8.5 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, in Weston, there are 127.6 rainfall days, and 24.33" (618mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Weston, during December, snow falls for 17.7 days and regularly aggregates up to 15.87" (403mm) of snow. Throughout the year, in Weston, there are 84.8 snowfall days, and 74.33" (1888mm) of snow is accumulated.Daylight
December has the shortest days of the year in Weston, Oregon, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:19 pm PST.
Sunshine
January and December, with an average of 4.6h of sunshine, are months with the least sunshine in Weston.UV index
January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the coldest month in Weston?
How cold is December in Weston?
What is the most humid month in Weston?
What is the average humidity in December in Weston?
How much does it rain in Weston in December?
How much does it snow in Weston in December?
What is the month with the shortest days in Weston?
How many hours of daylight does Weston have in December?
What time are sunrise and sunset in December in Weston?
What is the month with the least sunshine in Weston?
How long on average sun shines in December in Weston?
What are the months with the lowest UV index in Weston?
What is the UV index intensity in December in Weston?
Average temperature in December
Weston, OR
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).
Average pressure in December
Weston, OR
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Weston, OR
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).
Average humidity in December
Weston, OR
- Average humidity in December: 84%
The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is August (44%).
Average rainfall in December
Weston, OR
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is February (3.23").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Weston, OR
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (15.9 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in December
Weston, OR
- Average snowfall in December: 15.87"
The month with the highest snowfall is February (19.21").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Weston, OR
- Average snowfall days in December: 17.7 days
The month with the highest number of snowfall days is December (17.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Weston, OR
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in December
Weston, OR
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is July (24.5 days).
The months with the least sunshine days are February and March (8.2 days).
Average UV index in December
Weston, 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, April, November and December (UV index 2).
Average cloud cover in December
Weston, OR
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Weston, 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).
Weston, Oregon, USA
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