December weather forecastBrownsville, OR
December
Weather in December
The first month of the winter, December, is also a frosty month in Brownsville, Oregon, with an average temperature varying between 45.3°F (7.4°C) and 34.2°F (1.2°C).Temperature
In Brownsville, the lowest average temperatures are observed in December, with a high of 45.3°F (7.4°C) and a low of 34.2°F (1.2°C).Humidity
The months with the highest humidity in Brownsville are January through March and December, with an average relative humidity of 86%.Rainfall
The month with the most rainfall is December, when the rain falls for 18 days and typically aggregates up to 4.41" (112mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Brownsville, in December, snow falls for 0.7 days, with typically accumulated 0.31" (8mm) of snow. Throughout the year, there are 5.6 snowfall days, and 4.09" (104mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:47 am and sunset at 4:42 pm PST.
Sunshine
In Brownsville, the average sunshine in December is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Brownsville. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brownsville, OR
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Brownsville, OR
- Average pressure in December: 30.11"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
Brownsville, OR
- Average wind speed in December: 5mph
The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Brownsville, OR
- Average humidity in December: 86%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Brownsville, OR
- Average rainfall in December: 4.41"
The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Brownsville, OR
- Average rainfall days in December: 18 days
The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).
Average snowfall in December
Brownsville, OR
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Brownsville, OR
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (2.5 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
Brownsville, 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: 4h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Brownsville, OR
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).
Average UV index in December
Brownsville, 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
Brownsville, OR
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Brownsville, OR
- Average visibility in December: 5mi
The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is February (4mi).
