December weather forecastDanville, WA
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Danville, Washington, with an average temperature varying between 27°F (-2.8°C) and 13.1°F (-10.5°C).Temperature
Danville's temperature records reveal December as the coldest month, marked by average highs of 27°F (-2.8°C) and lows of 13.1°F (-10.5°C).Humidity
In December, the average relative humidity in Danville is 92%.Rainfall
In Danville, during December, the rain falls for 5.7 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Danville, during the entire year, the rain falls for 112.2 days and collects up to 14.69" (373mm) of precipitation.Snowfall
Months with snowfall in Danville are January through May, September through December. December is the month with the most snowfall. Snow falls for 17.3 days and accumulates 9.76" (248mm) of snow.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:27 am and sunset at 3:59 pm. On the last day of December, sunrise is at 7:47 am and sunset at 4:06 pm PST.
Sunshine
In December, the average sunshine in Danville, Washington, is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 1 in December transforms into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Danville, WA
- Average high temperature in December: 27°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in December: 13.1°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 (13.1°F).
Average pressure in December
Danville, WA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in December
Danville, WA
- Average wind speed in December: 3.7mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest months (with the lowest average wind speed) are January, February and December (3.7mph).
Average humidity in December
Danville, WA
- Average humidity in December: 92%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Danville, WA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is August (0.47").
Average rainfall days in December
Danville, WA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (5.7 days).
Average snowfall in December
Danville, WA
- Average snowfall in December: 9.76"
The month with the highest snowfall is December (9.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Danville, WA
- Average snowfall days in December: 17.3 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Danville, WA
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Danville, WA
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (10.8 days).
Average UV index in December
Danville, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Danville, WA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Danville, WA
- Average visibility in December: 3mi
The months with the highest visibility are April, May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
