December weather forecastBlueslide, WA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Blueslide, Washington, with an average temperature ranging between max 26.6°F (-3°C) and min 15.3°F (-9.3°C).Temperature
December is Blueslide's coldest month, registering average high temperatures of 26.6°F (-3°C) and lows of 15.3°F (-9.3°C).Humidity
In December, the average relative humidity in Blueslide is 93%.Rainfall
In Blueslide, Washington, in December, it is raining for 8.4 days, with typically 1.85" (47mm) of accumulated precipitation. In Blueslide, during the entire year, the rain falls for 147.3 days and collects up to 20.12" (511mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 20.7 days. Throughout December, 10.47" (266mm) of snow is accumulated. Throughout the year, there are 95.8 snowfall days, and 50.39" (1280mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 3:56 pm. On the last day of December, sunrise is at 7:41 am and sunset at 4:04 pm PST.
Sunshine
The average sunshine in December in Blueslide is 3.5h.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 exposure to the Sun's UV rays for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blueslide, WA
- Average high temperature in December: 26.6°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (26.6°F).
- Average low temperature in December: 15.3°F
The month with the highest average low temperature is August (46.6°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in December
Blueslide, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Blueslide, WA
- Average wind speed in December: 3.2mph
The windiest months (with the highest average wind speed) are April, May and June (3.9mph).
The calmest months (with the lowest average wind speed) are January and December (3.2mph).
Average humidity in December
Blueslide, WA
- Average humidity in December: 93%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).
Average rainfall in December
Blueslide, WA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days in December
Blueslide, WA
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is April (18.5 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Blueslide, WA
- Average snowfall in December: 10.47"
The month with the highest snowfall is January (11.77").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Blueslide, WA
- Average snowfall days in December: 20.7 days
The month with the highest number of snowfall days is December (20.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Blueslide, WA
- Average daylight in December: 8h and 24min
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 24min).
- Average sunshine in December: 3h and 30min
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 6min).
Average sunshine days in December
Blueslide, WA
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is August (20.2 days).
The month with the least sunshine days is March (7.6 days).
Average UV index in December
Blueslide, 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
Blueslide, WA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Blueslide, WA
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
