Longview
Washington, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Longview, WA

The first month of the winter, December, is still a chilly month in Longview, Washington, with average temperature varying between 46.2°F (7.9°C) and 34.5°F (1.4°C).

Temperature

In Longview, the average high-temperature slightly decreases, from a cool 52.2°F (11.2°C) in November, to a chilly 46.2°F (7.9°C). The average low-temperature, in Longview, is 34.5°F (1.4°C).

Rainfall

December is the month with the most rainfall. Rain falls for 22 days and accumulates 7.1" (180.6mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall.

Ocean temperature

In December, the average ocean temperature in Longview is 47.8°F (8.8°C). Swimming in 47.8°F (8.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The month with the shortest days is December, with an average of 8.7h of daylight.

What is the temperature in December in Longview?

In Longview, in December, the average high-temperature is 46.2°F (7.9°C), and the average low-temperature is 34.5°F (1.4°C).

How much does it rain in Longview in December?

In Longview, Washington, in December, it is raining for 22 days, with typically 7.1" (180.6mm) of accumulated precipitation.

What is the wettest month in Longview?

December is the month with the most rainfall. Rain falls for 22 days and accumulates 7.1" (180.6mm) of precipitation.

How much does it snow in Longview in December?

In Longview, Washington, in December, 0.6" (15.2mm) of snow is typically accumulated.

How cold is the water in December in Longview?

In Longview, Washington, the average seawater temperature in December is 47.8°F (8.8°C). Swimming in 47.8°F (8.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days in Longview?

The month with the shortest days in Longview is December, with an average of 8.7h of daylight.

How many hours of daylight does Longview have in December?

In December, the average length of the day in Longview is 8.7h.
Average temperature in December - Longview, WA
  • Average high temperature in December: 46.2°F

The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in December: 34.6°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average rainfall in December - Longview, WA
  • Average rainfall in December: 7.1"

The wettest month (with the highest rainfall) is December (7.1").
The driest month (with the lowest rainfall) is July (0.8").

Average rainfall days in December - Longview, WA
  • Average rainfall days in December: 22 days

The month with the highest number of rainy days is December (22 days).
The month with the lowest number of rainy days is July (5 days).

Average snowfall in December - Longview, WA
  • Average snowfall in December: 0.6"

The month with the highest snowfall is January (3.2").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average sea temperature in December - Longview, WA
  • Average sea temperature in December: 47.8°F

The best month for swimming (with the highest average sea temperature) is September (53.8°F).
The coldest month (with the lowest average sea temperature) is February (46.6°F).

Average daylight in December - Longview, WA
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).