December weather forecastAsotin, WA
December
Weather in December
The first month of the winter, December, is also an icy month in Asotin, Washington, with an average temperature varying between 35.8°F (2.1°C) and 24.3°F (-4.3°C).Temperature
The coldest month is December, with an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 24.3°F (-4.3°C).Humidity
In Asotin, the average relative humidity in December is 83%.Rainfall
In Asotin, in December, it is raining for 9.3 days, with typically 0.79" (20mm) of accumulated precipitation. In Asotin, during the entire year, the rain falls for 112.5 days and collects up to 9.09" (231mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Asotin. In Asotin, in December, snow falls for 6 days, with typically accumulated 1.3" (33mm) of snow. In Asotin, during the entire year, snow falls for 20 days and aggregates up to 6.02" (153mm) of snow.Daylight
The month with the shortest days in Asotin is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:03 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:11 pm PST.
Sunshine
In Asotin, the average sunshine in December is 5.3h.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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Asotin, WA
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure in December
Asotin, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Asotin, WA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest months (with the lowest average wind speed) are August and September (4.2mph).
Average humidity in December
Asotin, WA
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Asotin, WA
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in December
Asotin, WA
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is April (13.8 days).
The month with the least rainy days is August (4.7 days).
Average snowfall in December
Asotin, WA
- Average snowfall in December: 1.3"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Asotin, WA
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is December (6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Asotin, 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: 5h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in December
Asotin, WA
- Average sunshine days in December: 18.3 days
The months with the most sunshine days are July and September (23.5 days).
The months with the least sunshine days are February and April (13.8 days).
Average UV index in December
Asotin, 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
Asotin, WA
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Asotin, WA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
