December weather forecast
Asotin, WA

Share

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.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

In Asotin, the average lowest temperatures are observed in December, with a high of 35.8°F (2.1°C) and a low of 24.3°F (-4.3°C).

How cold is it in December?

In Asotin, in December, the average high-temperature is 35.8°F (2.1°C), and the average low-temperature is 24.3°F (-4.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is evaluated at 84.2°F (29°C).

What is the average humidity in December?

In Asotin, the average relative humidity in December is 83%.

How much does it rain in December?

In Asotin, in December, during 9.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

How much does it snow in December?

In Asotin, in December, during 6 snowfall days, 1.3" (33mm) of snow is typically accumulated.

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 Asotin, the average day length in December is 8h and 40min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:11 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:11 pm PST.

How many hours of sunshine does Asotin have in December?

In December, the average sunshine duration is 5.3h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December in Asotin is 2. A UV Index of 2, and less, symbolizes 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
Asotin, WA

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Asotin, 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 2min

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 - 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 - 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 - 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 - 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).

Asotin, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location