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 is Boardman's coldest month, registering average high temperatures of 38.7°F (3.7°C) and lows of 29.1°F (-1.6°C).Humidity
In Boardman, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 11.4 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. In Boardman, during the entire year, the rain falls for 102.3 days and collects up to 7.09" (180mm) of precipitation.Snowfall
Months with snowfall are January through March, September, November and December. In Boardman, during December, snow falls for 3.3 days and regularly aggregates up to 1.22" (31mm) of snow. Throughout the year, there are 10 snowfall days, and 5.28" (134mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:24 pm PST.
Sunshine
In Boardman, Oregon, the average sunshine in December is 5.6h.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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold does it get in December?
What is the average humidity in December?
How many days does it rain in December in Boardman?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Boardman have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Boardman have in December?
When is the lowest UV index in Boardman?
What is the UV index intensity in December?
Average temperature in December
Boardman, OR
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is December (38.7°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (29.1°F).
Average pressure in December
Boardman, OR
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Boardman, OR
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is December (6.3mph).
Average humidity in December
Boardman, OR
- Average humidity in December: 77%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in December
Boardman, OR
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is January (0.98").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Boardman, OR
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (3.8 days).
Average snowfall in December
Boardman, OR
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Boardman, OR
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Boardman, OR
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Boardman, OR
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is February (14.7 days).
Average UV index in December
Boardman, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Boardman, OR
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Boardman, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Boardman, Oregon, USA
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