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
Valleyford's coldest month, December, generally records average temperatures ranging from a high of 32°F (0°C) to a low of 21.9°F (-5.6°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Valleyford, Washington, in December, during 8.9 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Valleyford, during the entire year, the rain falls for 125.4 days and collects up to 17.28" (439mm) of precipitation.Snowfall
Months with snowfall in Valleyford, Washington, are January through May, September through December. In Valleyford, in December, during 13.9 snowfall days, 8.9" (226mm) of snow is typically accumulated. Throughout the year, in Valleyford, there are 56.4 snowfall days, and 37.4" (950mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:07 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.8h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 suggests this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Valleyford?
How cold is December in Valleyford?
What is the average humidity in December in Valleyford?
How many days does it rain in December in Valleyford?
How much does it snow in Valleyford in December?
What is the month with the shortest days in Valleyford?
How many hours of daylight does Valleyford have in December?
When is the sunrise / sunset in December in Valleyford?
What is the month with the least sunshine in Valleyford?
How many hours of sunshine does Valleyford have in December?
What is the month with the lowest UV index in Valleyford?
How high is the UV index in December in Valleyford?
Average temperature in December
Valleyford, WA
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).
- Average low temperature in December: 21.9°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in December
Valleyford, WA
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Valleyford, WA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in December
Valleyford, WA
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Valleyford, WA
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in December
Valleyford, WA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).
Average snowfall in December
Valleyford, WA
- Average snowfall in December: 8.9"
The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Valleyford, WA
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Valleyford, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in December
Valleyford, WA
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in December
Valleyford, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Valleyford, WA
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Valleyford, WA
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Valleyford, Washington, USA
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