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

January weather forecast and climate
Ontario, OR

January, like December, in Ontario, Oregon, is another cold winter month, with average temperature ranging between min 18°F (-7.8°C) and max 34°F (1.1°C).

Temperature

With an average high-temperature of 34°F (1.1°C) and an average low-temperature of 18°F (-7.8°C), January is the coldest month.

Rainfall

In Ontario, in January, 1.3" (32.8mm) of precipitation is typically accumulated. Throughout the year, 9.4" (239.9mm) of rain is accumulated.

Snowfall

Months with snowfall in Ontario, Oregon, are January through March, November and December.

Daylight

In Ontario, the average length of the day in January is 9.3h.

What is the coldest month in Ontario?

The coldest month in Ontario, Oregon, is January, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 18°F (-7.8°C).

What is the temperature in January in Ontario?

The average high-temperature, in January, is 34°F (1.1°C), while the average low-temperature is 18°F (-7.8°C).

How much does it rain in Ontario in January?

During January, Ontario regularly aggregates up to 1.3" (32.8mm) of precipitation.

How much does it snow in Ontario in January?

Throughout January, in Ontario, 3.4" (86.4mm) of snow is accumulated.

How many hours of daylight does Ontario have in January?

The average length of the day in January in Ontario is 9.3h.
Average temperature in January - Ontario, OR
  • Average high temperature in January: 34°F

The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average rainfall in January - Ontario, OR
  • Average rainfall in January: 1.3"

The wettest month (with the highest rainfall) is December (1.4").
Driest months (with the lowest rainfall) are July and August (0.3").

Average snowfall in January - Ontario, OR
  • Average snowfall in January: 3.4"

The month with the highest snowfall is December (5").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in January - Ontario, OR
  • Average daylight in January: 9.3h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 8.9h).