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 month of December, characterized by an average high of 43.5°F (6.4°C) and a low of 33.3°F (0.7°C), is recognized as the coldest.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Sheridan, Oregon, is December, when the rain falls for 17.1 days and typically aggregates up to 2.56" (65mm) of precipitation.Snowfall
Months with snowfall in Sheridan are January through March, November and December. In Sheridan, in December, during 0.8 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Sheridan, during the entire year, snow falls for 5.8 days and aggregates up to 1.77" (45mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:52 am and sunset at 4:41 pm PST.
Sunshine
In December, the average sunshine is 3.6h.UV index
The months with the lowest UV index in Sheridan are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest time of year in Sheridan?
Is December cold in Sheridan?
What are the most humid months in Sheridan?
What is the average humidity in December in Sheridan?
What is the wettest month in Sheridan?
How many days does it rain in December in Sheridan?
How much does it snow in Sheridan in December?
What is the month with the shortest days in Sheridan?
What is the average length of the day in December in Sheridan?
When is the sunrise / sunset in December in Sheridan?
How many hours of sunshine does Sheridan have in December?
What are the months with the lowest UV index in Sheridan?
What is the UV index reading in December in Sheridan?
Average temperature in December
Sheridan, OR
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in December
Sheridan, OR
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).
Average wind speed in December
Sheridan, OR
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Sheridan, OR
- Average humidity in December: 89%
The months with the highest relative humidity are February and December (89%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Sheridan, OR
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Sheridan, OR
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in December
Sheridan, OR
- Average snowfall in December: 0.16"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Sheridan, OR
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.3 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
Sheridan, 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: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in December
Sheridan, OR
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Sheridan, OR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Sheridan, OR
- Average cloud cover in December: 65
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Sheridan, OR
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).
Sheridan, Oregon, USA
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