December weather forecastWashtucna, WA
December
Weather in December
December, the first month of the winter in Washtucna, is also an icy month, with temperature in the range of an average high of 33.8°F (1°C) and an average low of 25.2°F (-3.8°C).Temperature
December is Washtucna's coldest month, registering average high temperatures of 33.8°F (1°C) and lows of 25.2°F (-3.8°C).Humidity
In December, the average relative humidity in Washtucna is 82%.Rainfall
In Washtucna, in December, it is raining for 8.4 days, with typically 1.22" (31mm) of accumulated precipitation. In Washtucna, during the entire year, the rain falls for 109 days and collects up to 10.59" (269mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. In December, in Washtucna, it is snowing for 7.8 days. Throughout December, 3.35" (85mm) of snow is accumulated. In Washtucna, during the entire year, snow falls for 28.2 days and aggregates up to 12.48" (317mm) of snow.Daylight
The month with the shortest days in Washtucna is December, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:15 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 4.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Washtucna, WA
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in December
Washtucna, WA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in December
Washtucna, WA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in December
Washtucna, WA
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (34%).
Average rainfall in December
Washtucna, WA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is March (1.38").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in December
Washtucna, WA
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is July (4.2 days).
Average snowfall in December
Washtucna, WA
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Washtucna, WA
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Washtucna, WA
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 4h and 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Washtucna, WA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in December
Washtucna, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Washtucna, WA
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in December
Washtucna, WA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
