John Day
Oregon, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
John Day, OR

The iconic Painted Hills in the famous John Day Fossil Beds National Monument, Oregon, are a famed top tourist spot with the surrounding scape
The iconic Painted Hills in the famous John Day Fossil Beds National Monument, Oregon, are a famed top tourist spot with the surrounding scape
December, the first month of the winter, in John Day, is still a cold month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 42.4°F (5.8°C).

Temperature

In John Day, the average high-temperature slightly decreases, from a cool 50.5°F (10.3°C) in November, to a wintry 42.4°F (5.8°C). The average low-temperature, in John Day, is 22.8°F (-5.1°C).

Rainfall

In December, in John Day, the rain falls for 11 days. Throughout December, 1.3" (32.5mm) of precipitation is accumulated. Throughout the year, in John Day, there are 103 rainfall days, and 13.2" (335.1mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. Throughout December, in John Day, 4.9" (124.5mm) of snow is accumulated. Throughout the year, in John Day, 19.7" (500.5mm) of snow is accumulated.

Daylight

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

What is the temperature in December in John Day?

In John Day, Oregon, in December, the average high-temperature is 42.4°F (5.8°C), and the average low-temperature is 22.8°F (-5.1°C).

How many days does it rain in December in John Day?

In John Day, in December, during 11 rainfall days, 1.3" (32.5mm) of precipitation is typically accumulated.

How much does it snow in John Day in December?

In John Day, Oregon, in December, 4.9" (124.5mm) of snow is typically accumulated.

What is the month with the shortest days in John Day?

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

What is the average length of the day in December in John Day?

In December, the average length of the day in John Day is 8.9h.
Average temperature in December - John Day, OR
  • Average high temperature in December: 42.5°F

The warmest month (with the highest average high temperature) is July (88.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in December: 22.9°F

The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average rainfall in December - John Day, OR
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (1.8").
The driest month (with the lowest rainfall) is July (0.5").

Average rainfall days in December - John Day, OR
  • Average rainfall days in December: 11 days

Months with the highest number of rainy days are January, March, April, May, November and December (11 days).
The month with the lowest number of rainy days is July (3 days).

Average snowfall in December - John Day, OR
  • Average snowfall in December: 4.9"

The month with the highest snowfall is January (5.9").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in December - John Day, 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).