December weather forecastNewberg, OR
December
Weather in December
December in Newberg embraces fully the chilling winter winds and frosty landscapes. The city, soaked in the spirit of holidays, is touched by the magic of freezing temperatures and sprinkles of snow. With the shortest daylight duration of an average of 8.8 hours, the city stays more time under a blanket of stars. December weather is characterized by the lowest average temperature falling to 34.2°F (1.2°C). The rhythmic patter of increased rainfall and an occasional flurry of snow wrap up the year, promising a fresh start with the New Year's arrival.Temperature
Newberg's December weather, marked by an average high temperature of 44.1°F (6.7°C) and an average low temperature of 34.2°F (1.2°C), is the coldest in the year.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 86%.Rainfall
December is the month with the most rainfall. Rain falls for 18.6 days and accumulates 4.13" (105mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 0.6 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Newberg, during the entire year, snow falls for 5.8 days and aggregates up to 3.43" (87mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:31 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:39 pm PST.
Sunshine
In December, the average sunshine is 4.1h.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 low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Newberg, OR
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Newberg, OR
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Newberg, OR
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are June and August (4.2mph).
Average humidity in December
Newberg, OR
- Average humidity in December: 86%
The months with the highest relative humidity are February and December (86%).
The month with the lowest relative humidity is August (64%).
Average rainfall in December
Newberg, OR
- Average rainfall in December: 4.13"
The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in December
Newberg, OR
- Average rainfall days in December: 18.6 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in December
Newberg, OR
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Newberg, OR
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Newberg, OR
- Average daylight in December: 8h and 48min
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: 4h and 6min
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 0min).
Average sunshine days in December
Newberg, OR
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
Newberg, 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
Newberg, OR
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Newberg, OR
- Average visibility in December: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
