December weather forecastDetroit, OR
December
Weather in December
The first month of the winter, December, is also an icy month in Detroit, Oregon, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 39.9°F (4.4°C).Temperature
Detroit's coldest month, December, registers temperatures that range from a high of 39.9°F (4.4°C) to a low of 28.8°F (-1.8°C).Humidity
The average relative humidity in December is 87%.Rainfall
In Detroit, in December, it is raining for 18 days, with typically 6.93" (176mm) of accumulated precipitation. In Detroit, during the entire year, the rain falls for 182.5 days and collects up to 47.56" (1208mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 6.5 days. Throughout December, 4.09" (104mm) of snow is accumulated. Throughout the year, there are 32.4 snowfall days, and 43.78" (1112mm) 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 December, sunrise is at 7:26 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:38 pm PST.
Sunshine
The average sunshine in December is 3.8h.UV index
The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Detroit, OR
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is August (76.8°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is August (46.8°F).
The coldest month (with the lowest average low temperature) is December (28.8°F).
Average pressure in December
Detroit, OR
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in December
Detroit, OR
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Detroit, OR
- Average humidity in December: 87%
The months with the highest relative humidity are February and March (88%).
The months with the lowest relative humidity are July and August (66%).
Average rainfall in December
Detroit, OR
- Average rainfall in December: 6.93"
The wettest month (with the highest rainfall) is January (6.97").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in December
Detroit, OR
- Average rainfall days in December: 18 days
The month with the highest number of rainy days is March (21.3 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in December
Detroit, OR
- Average snowfall in December: 4.09"
The month with the highest snowfall is February (15").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Detroit, OR
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Detroit, OR
- Average daylight in December: 8h and 54min
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: 3h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in December
Detroit, OR
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in December
Detroit, OR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Detroit, OR
- Average cloud cover in December: 60
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Detroit, OR
- Average visibility in December: 4mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
