December weather forecast
Benton City, WA

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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.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

December, with its average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 27.5°F (-2.5°C), holds the record as the coldest month.

How cold is it in December?

In December, the average high-temperature and low-temperature are 37.9°F (3.3°C) and 27.5°F (-2.5°C) respectively.

What is the average humidity in December?

The average relative humidity in December is 78%.

What is the rainiest month?

December is the month with the most rainfall in Benton City. Rain falls for 10.5 days and accumulates 0.91" (23mm) of precipitation.

How many days does it rain in December?

In Benton City, Washington, in December, it is raining for 10.5 days, with typically 0.91" (23mm) of accumulated precipitation.

How much does it snow in December?

In Benton City, in December, snow falls for 3.3 days, with typically accumulated 1.42" (36mm) of snow.

What is the month with the shortest days?

With an average of 8h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 8h and 41min.

What time are sunrise and sunset in December?

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.

How many hours of sunshine does Benton City have in December?

In Benton City, the average sunshine duration in December is 5.5h.

What are the months with the lowest UV index?

The months with the lowest UV index in Benton City are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Benton City, WA

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Benton City, WA
  • Average daylight in December: 8h and 4min

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 3min

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 - 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 - 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 - 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 - 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).

Benton City, Washington, USA

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