Corvallis
Oregon, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Corvallis, OR

A large river with two bridges across it in the city of Corvalis, Oregon, home to the famed Oregon State University, a far view of hill ranges
A large river with two bridges across it in the city of Corvalis, Oregon, home to the famed Oregon State University, a far view of hill ranges
The first month of the winter, December, is still a chilly month in Corvallis, Oregon, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 33.8°F (1°C).

Temperature

The coldest month is December, with an average high-temperature of 46.4°F (8°C) and an average low-temperature of 33.8°F (1°C).

Rainfall

December is the month with the most rainfall in Corvallis. Rain falls for 20.8 days and accumulates 7.4" (188.7mm) of precipitation.

Snowfall

Months with snowfall in Corvallis, Oregon, are January through March, November and December. In Corvallis, Oregon, during December, snow falls for 0.8 days and regularly aggregates up to 1.4" (35.6mm) of snow. In Corvallis, during the entire year, snow falls for 3.1 days, and aggregates up to 5.1" (129.6mm) of snow.

Daylight

December has the shortest days of the year in Corvallis, Oregon, with an average of 8.9h of daylight.

What is the coldest month in Corvallis?

The coldest month in Corvallis is December, with an average high-temperature of 46.4°F (8°C) and an average low-temperature of 33.8°F (1°C).

What is the temperature in December in Corvallis?

The average high-temperature, in December, is 46.4°F (8°C), while the average low-temperature is 33.8°F (1°C).

How many days does it rain in December in Corvallis?

In Corvallis, during December, the rain falls for 20.8 days and regularly aggregates up to 7.4" (188.7mm) of precipitation.

What is the wettest month in Corvallis?

The month with the most rainfall in Corvallis, Oregon, is December when the rain falls for 20.8 days and typically aggregates up to 7.4" (188.7mm) of precipitation.

How much does it snow in Corvallis in December?

In Corvallis, in December, snow falls for 0.8 days, with typically accumulated 1.4" (35.6mm) of snow.

What is the month with the shortest days in Corvallis?

The month with the shortest days in Corvallis, Oregon, is December, with an average of 8.9h of daylight.

How many hours of daylight does Corvallis have in December?

In December, the average length of the day in Corvallis is 8.9h.
Average temperature in December - Corvallis, OR
  • Average high temperature in December: 46.4°F

The warmest month (with the highest average high temperature) is August (82.4°F).
The month with the lowest average high temperature is December (46.4°F).

  • Average low temperature in December: 33.8°F

The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).

Average rainfall in December - Corvallis, OR
  • Average rainfall in December: 7.4"

The wettest month (with the highest rainfall) is December (7.4").
The driest month (with the lowest rainfall) is July (0.6").

Average rainfall days in December - Corvallis, OR
  • Average rainfall days in December: 20.8 days

The month with the highest number of rainy days is December (20.8 days).
The month with the lowest number of rainy days is July (3.6 days).

Average snowfall in December - Corvallis, OR
  • Average snowfall in December: 1.4"

The month with the highest snowfall is February (2.2").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December - Corvallis, OR
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (1.1 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December - Corvallis, OR
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).