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

December weather forecast and climate
Richland, OR

December, the first month of the winter, in Richland, is also a wintry month, with temperature in the range of an average high of 40.5°F (4.7°C) and an average low of 21.9°F (-5.6°C).

Temperature

In December, the average high-temperature drops, from a fresh 50.7°F (10.4°C) in November, to a wintry 40.5°F (4.7°C). In December, in Richland, Oregon, the average low-temperature is 21.9°F (-5.6°C).

Rainfall

In December, in Richland, Oregon, the rain falls for 7 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 60 rainfall days, and 11" (278.3mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall.

Daylight

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

What is the temperature in December in Richland?

In December, the average high-temperature is 40.5°F (4.7°C), and the average low-temperature is 21.9°F (-5.6°C).

How much does it rain in Richland in December?

In Richland, Oregon, during December, the rain falls for 7 days and regularly aggregates up to 1.3" (33mm) of precipitation.

How much does it snow in Richland in December?

In Richland, in December, 5.1" (129.5mm) of snow is typically accumulated.

What is the month with the shortest days in Richland?

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

What is the average length of the day in December in Richland?

In Richland, Oregon, the average length of the day in December is 8.9h.
Average temperature in December - Richland, OR
  • Average high temperature in December: 40.4°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is July (52.8°F).
The coldest month (with the lowest average low temperature) is January (19.7°F).

Average rainfall in December - Richland, OR
  • Average rainfall in December: 1.3"

Wettest months (with the highest rainfall) are January, May, November and December (1.3").
The driest month (with the lowest rainfall) is July (0.4").

Average rainfall days in December - Richland, OR
  • Average rainfall days in December: 7 days

Months with the highest number of rainy days are January, November and December (7 days).
The month with the lowest number of rainy days is July (2 days).

Average snowfall in December - Richland, OR
  • Average snowfall in December: 5.1"

The month with the highest snowfall is January (6.4").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in December - Richland, 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).