December weather forecastMillersburg, OR
December
Weather in December
The first month of the winter, December, is still a chilly month in Millersburg, Oregon, with an average temperature ranging between max 45.5°F (7.5°C) and min 34.5°F (1.4°C).Temperature
The lowest temperatures are recorded in December, with averages reaching a high of 45.5°F (7.5°C) and a low of 34.5°F (1.4°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 87%.Rainfall
The month with the most rainfall is December, when the rain falls for 18.5 days and typically aggregates up to 3.98" (101mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 0.5 days. Throughout December, 0.31" (8mm) of snow is accumulated. Throughout the year, there are 4.3 snowfall days, and 2.64" (67mm) 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 7:29 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:42 pm PST.
Sunshine
In Millersburg, the average sunshine in December is 4.3h.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 unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Enhance your sun protection with tightly woven, yet airy clothing. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millersburg, OR
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is August (81.9°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).
Average pressure in December
Millersburg, 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
Millersburg, OR
- Average wind speed in December: 4.9mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Millersburg, OR
- Average humidity in December: 87%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Millersburg, OR
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Millersburg, OR
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in December
Millersburg, OR
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Millersburg, OR
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.9 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
Millersburg, 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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Millersburg, OR
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Millersburg, 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
Millersburg, OR
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Millersburg, 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).
