O'Brien
Oregon, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
O'Brien, OR

December, the first month of the winter, in O'Brien, is still a cool month, with temperature in the range of an average low of 33.1°F (0.6°C) and an average high of 50°F (10°C).

Temperature

The coldest month is December, with an average high-temperature of 50°F (10°C) and an average low-temperature of 33.1°F (0.6°C).

Rainfall

December is the month with the most rainfall in O'Brien, with 13" (330.2mm) of accumulated precipitation.

Snowfall

Months with snowfall in O'Brien are January through April, November and December. Throughout December, 2.5" (63.5mm) of snow is accumulated. Throughout the year, in O'Brien, 11.7" (297.2mm) of snow is accumulated.

Daylight

December has the shortest days of the year in O'Brien, with an average of 9.2h of daylight.

What is the coldest month in O'Brien?

With an average high-temperature of 50°F (10°C) and an average low-temperature of 33.1°F (0.6°C), December is the coldest month in O'Brien.

What is the temperature in December in O'Brien?

In December, in O'Brien, the average high-temperature is 50°F (10°C), and the average low-temperature is 33.1°F (0.6°C).

How much does it rain in O'Brien in December?

In O'Brien, in December, 13" (330.2mm) of precipitation is typically accumulated.

What is the wettest month in O'Brien?

December is the month with the most rainfall in O'Brien, Oregon, with 13" (330.2mm) of accumulated precipitation.

How much does it snow in O'Brien in December?

Throughout December, in O'Brien, 2.5" (63.5mm) of snow is accumulated.

What is the month with the shortest days in O'Brien?

With an average of 9.2h of daylight, December has the shortest days of the year.

How many hours of daylight does O'Brien have in December?

In December, the average length of the day in O'Brien, Oregon, is 9.2h.
Average temperature in December - O
  • Average high temperature in December: 50°F

Warmest months (with the highest average high temperature) are July and August (94°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in December: 33°F

The month with the highest average low temperature is July (52°F).
Coldest months (with the lowest average low temperature) are January and December (33°F).

Average rainfall in December - O
  • Average rainfall in December: 13"

The wettest month (with the highest rainfall) is December (13").
The driest month (with the lowest rainfall) is July (0.3").

Average snowfall in December - O
  • Average snowfall in December: 2.5"

The month with the highest snowfall is January (4.1").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average daylight in December - O
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).