December weather forecastLowell, OR
December
Weather in December
December, the first month of the winter in Lowell, is still a chilly month, with an average temperature varying between 46°F (7.8°C) and 33.8°F (1°C).Temperature
December, known for its average high temperature of 46°F (7.8°C) and an average low temperature of 33.8°F (1°C), is the coldest month.Humidity
January through March and December, with an average relative humidity of 86%, are the most humid months.Rainfall
December is the month with the most rainfall. Rain falls for 18.5 days and accumulates 4.57" (116mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Lowell, in December, during 0.8 snowfall days, 0.43" (11mm) of snow is typically accumulated. In Lowell, during the entire year, snow falls for 6.6 days and aggregates up to 5" (127mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:26 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:43 pm PST.
Sunshine
In Lowell, Oregon, the average sunshine in December is 4.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lowell, OR
- Average high temperature in December: 46°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).
Average pressure in December
Lowell, 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
Lowell, OR
- Average wind speed in December: 4.3mph
The windiest months (with the highest average wind speed) are January and March (4.4mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in December
Lowell, 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 (69%).
Average rainfall in December
Lowell, 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 (0.2").
Average rainfall days in December
Lowell, OR
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in December
Lowell, OR
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lowell, OR
- Average snowfall days in December: 0.8 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
Lowell, OR
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Lowell, OR
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in December
Lowell, 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
Lowell, OR
- Average cloud cover in December: 57
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Lowell, OR
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
