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

December weather forecast and climate
Seneca, OR

The first month of the winter, December, is also a wintry month in Seneca, Oregon, with average temperature ranging between min 11.7°F (-11.3°C) and max 36.3°F (2.4°C).

Temperature

In Seneca, the average high-temperature decreases, from a frosty 45.3°F (7.4°C) in November, to a cold 36.3°F (2.4°C). The average low-temperature, in December, is 11.7°F (-11.3°C).

Rainfall

The month with the most rainfall in Seneca is December when the rain falls for 12 days and typically aggregates up to 1.7" (42.4mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall in Seneca, with 15" (381mm) of accumulated snow.

Daylight

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

What is the temperature in December in Seneca?

In Seneca, in December, the average high-temperature is 36.3°F (2.4°C), and the average low-temperature is 11.7°F (-11.3°C).

How much does it rain in Seneca in December?

In Seneca, Oregon, in December, during 12 rainfall days, 1.7" (42.4mm) of precipitation is typically accumulated.

What is the wettest month in Seneca?

The month with the most rainfall is December when the rain falls for 12 days and typically aggregates up to 1.7" (42.4mm) of precipitation.

How much does it snow in Seneca in December?

In Seneca, Oregon, in December, 15" (381mm) of snow is typically accumulated.

What is the snowiest month in Seneca?

December is the month with the most snowfall in Seneca, Oregon, with 15" (381mm) of accumulated snow.

What is the month with the shortest days in Seneca?

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

How many hours of daylight does Seneca have in December?

In December, the average length of the day in Seneca is 8.9h.
Average temperature in December - Seneca, OR
  • Average high temperature in December: 36.4°F

The warmest month (with the highest average high temperature) is July (81.8°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 11.7°F

The month with the highest average low temperature is July (37.8°F).
The coldest month (with the lowest average low temperature) is January (9.2°F).

Average rainfall in December - Seneca, OR
  • Average rainfall in December: 1.7"

The wettest month (with the highest rainfall) is December (1.7").
The driest month (with the lowest rainfall) is July (0.5").

Average rainfall days in December - Seneca, OR
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is December (12 days).
Months with the lowest number of rainy days are July and August (3 days).

Average snowfall in December - Seneca, OR
  • Average snowfall in December: 15"

The month with the highest snowfall is December (15").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in December - Seneca, 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).