December weather forecastBunker Hill, OR
December
Weather in December
The first month of the winter, December, is also a frosty month in Bunker Hill, Oregon, with an average temperature varying between 41.7°F (5.4°C) and 49.1°F (9.5°C).Temperature
December is the month when Bunker Hill sees the lowest average temperatures, with a high of 49.1°F (9.5°C) and a low of 41.7°F (5.4°C).Humidity
In Bunker Hill, the average relative humidity in December is 82%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.6 days and typically aggregates up to 5.87" (149mm) of precipitation.Snowfall
March through October and December are months without snowfall in Bunker Hill.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:42 pm. On the last day of December, in Bunker Hill, sunrise is at 7:49 am and sunset at 4:51 pm PST.
Sunshine
The average sunshine in December is 4.5h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bunker Hill, OR
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is August (66.9°F).
The month with the lowest average high temperature is December (49.1°F).
- Average low temperature in December: 41.7°F
The month with the highest average low temperature is August (52.3°F).
The coldest months (with the lowest average low temperature) are February and December (41.7°F).
Average pressure in December
Bunker Hill, OR
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).
Average wind speed in December
Bunker Hill, OR
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in December
Bunker Hill, OR
- Average humidity in December: 82%
The months with the highest relative humidity are February and August (84%).
The months with the lowest relative humidity are April and October (81%).
Average rainfall in December
Bunker Hill, OR
- Average rainfall in December: 5.87"
The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Bunker Hill, OR
- Average rainfall days in December: 18.6 days
The month with the highest number of rainy days is March (19.2 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in December
Bunker Hill, OR
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Bunker Hill, OR
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Bunker Hill, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 4h and 24min).
Average sunshine days in December
Bunker Hill, OR
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in December
Bunker Hill, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in December
Bunker Hill, OR
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and September (Cloud cover 28).
Average visibility in December
Bunker Hill, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
