December weather forecastPine Glen, WA
December
Weather in December
December, the first month of the winter in Pine Glen, is also a subzero cold month, with an average temperature ranging between min 19.6°F (-6.9°C) and max 29.8°F (-1.2°C).Temperature
In Pine Glen, the lowest average temperatures are observed in December, with a high of 29.8°F (-1.2°C) and a low of 19.6°F (-6.9°C).Humidity
In December, the average relative humidity is 92%.Rainfall
In Pine Glen, in December, during 12.8 rainfall days, 6.89" (175mm) of precipitation is typically accumulated. In Pine Glen, during the entire year, the rain falls for 174.5 days and collects up to 46.38" (1178mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 18.7 days and accumulates 25.16" (639mm) of snow.Daylight
December has the shortest days of the year in Pine Glen, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:24 pm PST.
Sunshine
The average sunshine in December in Pine Glen is 3.2h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Pine Glen. 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: The maximum daily UV index of 1 during December translates into the following directions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pine Glen, WA
- Average high temperature in December: 29.8°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in December: 19.6°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).
Average pressure in December
Pine Glen, WA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Pine Glen, WA
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is June (5.2mph).
The calmest months (with the lowest average wind speed) are September and October (4.2mph).
Average humidity in December
Pine Glen, WA
- Average humidity in December: 92%
The month with the highest relative humidity is February (94%).
The months with the lowest relative humidity are July and August (68%).
Average rainfall in December
Pine Glen, WA
- Average rainfall in December: 6.89"
The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Pine Glen, WA
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is April (18.8 days).
The month with the least rainy days is August (8.3 days).
Average snowfall in December
Pine Glen, WA
- Average snowfall in December: 25.16"
The month with the highest snowfall is December (25.16").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Pine Glen, WA
- Average snowfall days in December: 18.7 days
The month with the highest number of snowfall days is December (18.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Pine Glen, WA
- Average daylight in December: 8h and 36min
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 36min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Pine Glen, WA
- Average sunshine days in December: 7.9 days
The month with the most sunshine days is August (19.3 days).
The month with the least sunshine days is February (5.3 days).
Average UV index in December
Pine Glen, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Pine Glen, WA
- Average cloud cover in December: 70
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Pine Glen, WA
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August and September (5mi).
The months with the lowest visibility are January, February and December (3mi).





