Grants Pass
Oregon, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Grants Pass, OR

Colorful balloons rise from the scenic grounds below into the perfect in a field near Grant Pass
Colorful balloons rise from the scenic grounds below into the perfect in a field near Grant Pass
The first month of the winter, December, is still a chilly month in Grants Pass, Oregon, with average temperature fluctuating between 45.9°F (7.7°C) and 33.6°F (0.9°C).

Temperature

December is the coldest month, with an average high-temperature of 45.9°F (7.7°C) and an average low-temperature of 33.6°F (0.9°C).

Rainfall

The month with the most rainfall in Grants Pass is December when the rain falls for 17.4 days and typically aggregates up to 6.4" (162.8mm) of precipitation.

Snowfall

January, February and December are months with snowfall.

Daylight

The month with the shortest days is December, with an average of 9.1h of daylight.

What is the coldest month in Grants Pass?

The coldest month is December, with an average high-temperature of 45.9°F (7.7°C) and an average low-temperature of 33.6°F (0.9°C).

What is the temperature in December in Grants Pass?

In December, in Grants Pass, Oregon, the average high-temperature is 45.9°F (7.7°C), and the average low-temperature is 33.6°F (0.9°C).

How many days does it rain in December in Grants Pass?

In Grants Pass, in December, it is raining for 17.4 days, with typically 6.4" (162.8mm) of accumulated precipitation.

What is the rainiest month in Grants Pass?

December is the month with the most rainfall. Rain falls for 17.4 days and accumulates 6.4" (162.8mm) of precipitation.

When does it start to snow in Grants Pass?

December is the first month it typically snows in Grants Pass. Throughout December, in the average 0.3 snowfall days, it receives 0.3" (7.6mm) of snow.

What is the month with the shortest days in Grants Pass?

December has the shortest days of the year in Grants Pass, Oregon, with an average of 9.1h of daylight.

What is the average length of the day in December in Grants Pass?

In Grants Pass, Oregon, the average length of the day in December is 9.1h.
Average temperature in December - Grants Pass, OR
  • Average high temperature in December: 45.8°F

The warmest month (with the highest average high temperature) is August (89.9°F).
The month with the lowest average high temperature is December (45.8°F).

  • Average low temperature in December: 33.6°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).

Average rainfall in December - Grants Pass, OR
  • Average rainfall in December: 6.4"

The wettest month (with the highest rainfall) is December (6.4").
Driest months (with the lowest rainfall) are July and August (0.3").

Average rainfall days in December - Grants Pass, OR
  • Average rainfall days in December: 17.4 days

The month with the highest number of rainy days is December (17.4 days).
The month with the lowest number of rainy days is July (1.8 days).

Average snowfall in December - Grants Pass, OR
  • Average snowfall in December: 0.3"

The month with the highest snowfall is January (0.4").
Months with the lowest snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December - Grants Pass, OR
  • Average snowfall days in December: 0.3 days

Months with the highest number of snowfall days are January, February and December (0.3 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December - Grants Pass, OR
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).