December weather forecastWhite Salmon, WA
December
Weather in December
The first month of the winter, December, is still a cold month in White Salmon, Washington, with an average temperature varying between 26.1°F (-3.3°C) and 35.2°F (1.8°C).Temperature
White Salmon's temperature records reveal December as the coldest month, marked by average highs of 35.2°F (1.8°C) and lows of 26.1°F (-3.3°C).Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 88%.Rainfall
In White Salmon, Washington, during December, the rain falls for 16.1 days and regularly aggregates up to 4.61" (117mm) of precipitation. Throughout the year, there are 152.5 rainfall days, and 26.93" (684mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, in White Salmon, it is snowing for 6.5 days. Throughout December, 4.57" (116mm) of snow is accumulated. In White Salmon, during the entire year, snow falls for 23.9 days and aggregates up to 18.74" (476mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:31 pm PST.
Sunshine
In December, the average sunshine is 4h.UV index
The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
White Salmon, WA
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (35.2°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in December
White Salmon, WA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
White Salmon, WA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is June (6.4mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in December
White Salmon, WA
- Average humidity in December: 88%
The months with the highest relative humidity are January, February and December (88%).
The months with the lowest relative humidity are July and August (58%).
Average rainfall in December
White Salmon, WA
- Average rainfall in December: 4.61"
The wettest month (with the highest rainfall) is January (4.88").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
White Salmon, WA
- Average rainfall days in December: 16.1 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in December
White Salmon, WA
- Average snowfall in December: 4.57"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
White Salmon, WA
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is December (6.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
White Salmon, WA
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
White Salmon, WA
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
White Salmon, WA
- 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 and February (UV index 1).
Average cloud cover in December
White Salmon, WA
- Average cloud cover in December: 60
The months with the most cloud cover are January and February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
White Salmon, WA
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
