December weather forecastBend, OR

December
Weather in December
Winter firmly sets in Bend, Oregon, during December, accompanied by chilly days and even colder nights. Snowfall increases dramatically to 3.9" (99mm), providing an indication of the severity of the winter season. The city transforms into a winter wonderland with snow-covered streets and Christmas decorations adorning the downtown area. Coupled with the shortest daylight hours and foggy conditions, December brings a quiet and serene ambiance. Despite the cold and damp, one cannot overlook the distinct charm of Bend in December, with its snowy vistas and holiday cheer.Temperature
With its high average temperature of 35.8°F (2.1°C) and a low of 24.6°F (-4.1°C), December is regarded as the coldest month.Humidity
The most humid month is December, with an average relative humidity of 82%.Rainfall
In December, in Bend, the rain falls for 7.6 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. In Bend, Oregon, during the entire year, the rain falls for 107.1 days and collects up to 12.17" (309mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Bend, in December, snow falls for 8.3 days, with typically accumulated 3.9" (99mm) of snow. Throughout the year, there are 44.9 snowfall days, and 24.57" (624mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:37 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bend, OR
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure in December
Bend, OR
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Bend, OR
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Bend, OR
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (48%).
Average rainfall in December
Bend, OR
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Bend, OR
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in December
Bend, OR
- Average snowfall in December: 3.9"
The month with the highest snowfall is February (6.65").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Bend, OR
- Average snowfall days in December: 8.3 days
The month with the highest number of snowfall days is March (9.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Bend, OR
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Bend, OR
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in December
Bend, 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, March, November and December (UV index 2).
Average cloud cover in December
Bend, OR
- Average cloud cover in December: 46
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Bend, OR
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).





