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

December weather forecast and climate
Heppner, OR

December, the first month of the winter, in Heppner, is still a cold month, with average temperature ranging between max 41.2°F (5.1°C) and min 26.1°F (-3.3°C).

Temperature

With an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 26.1°F (-3.3°C), December is the coldest month.

Rainfall

In Heppner, in December, 1.3" (34mm) of precipitation is typically accumulated. During the entire year, Heppner aggregates up to 13.9" (352.4mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. December is the month with the most snowfall, with 4.2" (106.7mm) of accumulated snow.

Daylight

December has the shortest days of the year, with an average of 8.8h of daylight.

What is the coldest month in Heppner?

With an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 26.1°F (-3.3°C), December is the coldest month.

What is the temperature in December in Heppner?

The average high-temperature, in December, in Heppner, Oregon, is 41.2°F (5.1°C), while the average low-temperature is 26.1°F (-3.3°C).

How much does it rain in Heppner in December?

Throughout December, in Heppner, Oregon, 1.3" (34mm) of precipitation is accumulated.

How much does it snow in Heppner in December?

During December, Heppner regularly aggregates up to 4.2" (106.7mm) of snow.

When does it snow the most in Heppner?

The month with the most snowfall in Heppner, Oregon, is December when 4.2" (106.7mm) of snow is typically aggregated.

What is the month with the shortest days in Heppner?

December has the shortest days of the year in Heppner, with an average of 8.8h of daylight.

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

In Heppner, the average length of the day in December is 8.8h.
Average temperature in December - Heppner, OR
  • Average high temperature in December: 41.2°F

The warmest month (with the highest average high temperature) is July (85.9°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in December: 26.1°F

The month with the highest average low temperature is July (53.7°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

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

The wettest month (with the highest rainfall) is May (1.7").
The driest month (with the lowest rainfall) is July (0.3").

Average snowfall in December - Heppner, OR
  • Average snowfall in December: 4.2"

The month with the highest snowfall is December (4.2").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in December - Heppner, OR
  • Average daylight in December: 8.8h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).