Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December, having an average high-temperature of 45.7°F (7.6°C) and an average low-temperature of 34.2°F (1.2°C), is the coldest month.Humidity
The most humid month is December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall is December, when the rain falls for 14.2 days and typically aggregates up to 1.18" (30mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Blachly. In Blachly, in December, snow falls for 0.3 days, with typically accumulated 0.08" (2mm) of snow. In Blachly, during the entire year, snow falls for 3.2 days and aggregates up to 1.02" (26mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:30 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:45 pm PST.
Sunshine
In Blachly, the average sunshine in December is 3.9h.UV index
January, February, 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 vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What is the usual temperature for Blachly in December?
What is the most humid month?
What is the average humidity in December in Blachly?
What is the wettest month in Blachly?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Blachly have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Blachly, OR
- Average high temperature in December: 45.7°F
The warmest month (with the highest average high temperature) is August (80.1°F).
The month with the lowest average high temperature is December (45.7°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Blachly, 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
Blachly, OR
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is March (4.5mph).
The calmest months (with the lowest average wind speed) are August and September (3.6mph).
Average humidity in December
Blachly, OR
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Blachly, OR
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is December (1.18").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in December
Blachly, OR
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is July (2.1 days).
Average snowfall in December
Blachly, OR
- Average snowfall in December: 0.08"
The month with the highest snowfall is November (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Blachly, OR
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Blachly, OR
- Average daylight in December: 8h and 5min
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: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Blachly, OR
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is March (12.9 days).
Average UV index in December
Blachly, OR
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Blachly, OR
- Average cloud cover in December: 61
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Blachly, OR
- Average visibility in December: 4mi
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
Blachly, Oregon, USA
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