December weather forecastBly, OR
December
Weather in December
December, the first month of the winter in Bly, is also a wintry month, with an average temperature varying between 21.9°F (-5.6°C) and 34.3°F (1.3°C).Temperature
December, with its high-temperature average of 34.3°F (1.3°C) and a low-temperature average of 21.9°F (-5.6°C), is the coldest month.Humidity
The months with the highest humidity in Bly are January and December, with an average relative humidity of 81%.Rainfall
December is the month with the most rainfall. Rain falls for 7.5 days and accumulates 2.28" (58mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 14.8 days and accumulates 13.35" (339mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:41 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 in Bly. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bly, OR
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (34.3°F).
- Average low temperature in December: 21.9°F
The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in December
Bly, OR
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in December
Bly, OR
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Bly, OR
- Average humidity in December: 81%
The months with the highest relative humidity are January and December (81%).
The month with the lowest relative humidity is August (36%).
Average rainfall in December
Bly, OR
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is December (2.28").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in December
Bly, OR
- Average rainfall days in December: 7.5 days
The months with the highest number of rainy days are March, April and May (11.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in December
Bly, OR
- Average snowfall in December: 13.35"
The month with the highest snowfall is December (13.35").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Bly, OR
- Average snowfall days in December: 14.8 days
The month with the highest number of snowfall days is December (14.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Bly, OR
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Bly, OR
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in December
Bly, 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
Bly, OR
- Average cloud cover in December: 45
The months with the most cloud cover are March and December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in December
Bly, OR
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
