December weather forecastBenton City, WA
December
Weather in December
December, the first month of the winter in Benton City, is still a cold month, with an average temperature ranging between min 27.5°F (-2.5°C) and max 37.9°F (3.3°C).Temperature
December, recording an average high temperature of 37.9°F (3.3°C) and a low temperature of 27.5°F (-2.5°C), is Benton City's coldest month.Humidity
In December, the average relative humidity in Benton City is 78%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.5 days and typically aggregates up to 0.91" (23mm) of precipitation.Snowfall
Months with snowfall are January through March, September, November and December. In Benton City, in December, during 3.3 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Benton City, during the entire year, snow falls for 10.8 days and aggregates up to 5.39" (137mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:21 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:21 pm PST.
Sunshine
In Benton City, the average sunshine in December is 5.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Benton City, WA
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).
Average pressure in December
Benton City, WA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Benton City, WA
- Average wind speed in December: 5.9mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.9mph).
Average humidity in December
Benton City, WA
- Average humidity in December: 78%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in December
Benton City, WA
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is December (0.91").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in December
Benton City, WA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is March (11.8 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in December
Benton City, WA
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Benton City, WA
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Benton City, 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 30min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Benton City, WA
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is July (25.9 days).
The month with the least sunshine days is February (16.5 days).
Average UV index in December
Benton City, 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
Benton City, WA
- Average cloud cover in December: 44
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Benton City, WA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





