Coos Bay
Oregon, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Coos Bay, OR

A unique sandy and rocky shore near a forest of pine trees in the Shore Acres State Park in Coos Bay, Oregon, light waves in the vast sea
A unique sandy and rocky shore near a forest of pine trees in the Shore Acres State Park in Coos Bay, Oregon, light waves in the vast sea
The first month of the winter, December, is also a fresh month in Coos Bay, Oregon, with average temperature fluctuating between 53.1°F (11.7°C) and 39°F (3.9°C).

Temperature

January and December, with an average high-temperature of 53.1°F (11.7°C), are the coldest months.

Rainfall

December is the month with the most rainfall, with 10.4" (264.7mm) of accumulated precipitation.

Snowfall

Months with snowfall are January through March, November and December. Months with the most snowfall in Coos Bay, Oregon, are January, February and December, with an average 0.2" (5.1mm) of accumulated snow.

Daylight

With an average of 9h of daylight, December has the shortest days of the year.

What are the coldest months in Coos Bay?

January and December, with an average high-temperature of 53.1°F (11.7°C), are the coldest months.

What is the temperature in December in Coos Bay?

The average high-temperature, in December, in Coos Bay, is 53.1°F (11.7°C), while the average low-temperature is 39°F (3.9°C).

How much does it rain in Coos Bay in December?

During December, Coos Bay regularly aggregates up to 10.4" (264.7mm) of precipitation.

What is the rainiest month in Coos Bay?

December is the month with the most rainfall, with 10.4" (264.7mm) of accumulated precipitation.

How much does it snow in Coos Bay in December?

Throughout December, in Coos Bay, 0.2" (5.1mm) of snow is accumulated.

When does it snow the most in Coos Bay?

Months with the most snowfall are January, February and December, with an average 0.2" (5.1mm) of accumulated snow.

What is the month with the shortest days in Coos Bay?

The month with the shortest days in Coos Bay is December, with an average of 9h of daylight.

What is the average length of the day in December in Coos Bay?

In Coos Bay, Oregon, the average length of the day in December is 9h.
Average temperature in December - Coos Bay, OR
  • Average high temperature in December: 53°F

Warmest months (with the highest average high temperature) are August and September (68°F).
Months with the lowest average high temperature are January and December (53°F).

  • Average low temperature in December: 39°F

Months with the highest average low temperature are July and August (53°F).
Coldest months (with the lowest average low temperature) are January and December (39°F).

Average rainfall in December - Coos Bay, OR
  • Average rainfall in December: 10.4"

Wettest months (with the highest rainfall) are November and December (10.4").
The driest month (with the lowest rainfall) is July (0.5").

Average snowfall in December - Coos Bay, OR
  • Average snowfall in December: 0.2"

Months with the highest snowfall are January, February and December (0.2").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in December - Coos Bay, OR
  • Average daylight in December: 9h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).