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
Valley Falls notes the coldest temperatures in December, with a high average of 34.3°F (1.3°C) and a low of 21.9°F (-5.6°C).Humidity
January and December, with an average relative humidity of 81%, are the most humid months.Rainfall
December is the month with the most rainfall. Rain falls for 7.5 days and accumulates 2.28" (58mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. The month with the most snowfall is December, when snow falls for 14.8 days and typically aggregates up to 13.35" (339mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:11 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:38 pm PST.
Sunshine
The month with the least sunshine is December, 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. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is December?
What are the most humid months?
What is the average humidity in December in Valley Falls?
What is the rainiest month?
How many days does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days in Valley Falls?
How many hours of daylight does Valley Falls have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, OR
- Average daylight in December: 9h and 1min
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 2min
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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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
Valley Falls, 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).
Valley Falls, Oregon, USA
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