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

December weather forecast and climate
Williams, OR

The first month of the winter, December, is still a chilly month in Williams, Oregon, with average temperature fluctuating between 31.5°F (-0.3°C) and 46.9°F (8.3°C).

Temperature

In Williams, Oregon, the average high-temperature slightly decreases, from a cool 54°F (12.2°C) in November, to a chilly 46.9°F (8.3°C). In December, in Williams, the average low-temperature is 31.5°F (-0.3°C).

Rainfall

December is the month with the most rainfall in Williams. Rain falls for 14 days and accumulates 6.6" (168.4mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Williams, 2.5" (63.5mm) of snow is typically accumulated. Throughout the year, in Williams, 11.5" (292.1mm) of snow is accumulated.

Daylight

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

What is the temperature in December in Williams?

In December, the average high-temperature is 46.9°F (8.3°C), and the average low-temperature is 31.5°F (-0.3°C).

How much does it rain in Williams in December?

In Williams, during December, the rain falls for 14 days and regularly aggregates up to 6.6" (168.4mm) of precipitation.

What is the wettest month in Williams?

The month with the most rainfall in Williams, Oregon, is December when the rain falls for 14 days and typically aggregates up to 6.6" (168.4mm) of precipitation.

How much does it snow in Williams in December?

During December, Williams regularly aggregates up to 2.5" (63.5mm) of snow.

What is the month with the shortest days in Williams?

December has the shortest days of the year in Williams, Oregon, with an average of 9.2h of daylight.

How many hours of daylight does Williams have in December?

In December, the average length of the day in Williams is 9.2h.
Average temperature in December - Williams, OR
  • Average high temperature in December: 47°F

The warmest month (with the highest average high temperature) is July (84.5°F).
The month with the lowest average high temperature is January (46.7°F).

  • Average low temperature in December: 31.5°F

The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is February (30.6°F).

Average rainfall in December - Williams, OR
  • Average rainfall in December: 6.6"

The wettest month (with the highest rainfall) is December (6.6").
The driest month (with the lowest rainfall) is July (0.3").

Average rainfall days in December - Williams, OR
  • Average rainfall days in December: 14 days

Months with the highest number of rainy days are January and December (14 days).
The month with the lowest number of rainy days is July (1 days).

Average snowfall in December - Williams, OR
  • Average snowfall in December: 2.5"

The month with the highest snowfall is January (4.3").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average daylight in December - Williams, OR
  • 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).