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

January weather forecast and climate
Hermiston, OR

January, like December, in Hermiston, Oregon, is a wintry winter month, with average temperature fluctuating between 39.9°F (4.4°C) and 23.5°F (-4.7°C).

Temperature

With an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 23.5°F (-4.7°C), January is the coldest month.

Rainfall

The wettest months in Hermiston are January and December, with an average 1.2" (31mm) of rainfall.

Snowfall

January through March, November and December are months with snowfall in Hermiston. The month with the most snowfall in Hermiston is January when 5" (127mm) of snow is typically aggregated.

Daylight

In January, the average length of the day in Hermiston is 9.2h.

What is the coldest month in Hermiston?

The coldest month in Hermiston is January, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 23.5°F (-4.7°C).

What is the temperature in January in Hermiston?

In Hermiston, in January, the average high-temperature is 39.9°F (4.4°C), and the average low-temperature is 23.5°F (-4.7°C).

How much does it rain in Hermiston in January?

In Hermiston, in January, during 10 rainfall days, 1.2" (31mm) of precipitation is typically accumulated.

What is the wettest month in Hermiston?

Months with the most rainfall in Hermiston are January and December, with an average 1.2" (31mm) of precipitation.

How much does it snow in Hermiston in January?

In Hermiston, in January, 5" (127mm) of snow is typically accumulated.

When does it snow the most in Hermiston?

The month with the most snowfall is January when 5" (127mm) of snow is typically aggregated.

How many hours of daylight does Hermiston have in January?

In Hermiston, Oregon, the average length of the day in January is 9.2h.
Average temperature in January - Hermiston, OR
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (90.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 23.6°F

The month with the highest average low temperature is July (57.1°F).
The coldest month (with the lowest average low temperature) is January (23.6°F).

Average rainfall in January - Hermiston, OR
  • Average rainfall in January: 1.2"

Wettest months (with the highest rainfall) are January, November and December (1.2").
The driest month (with the lowest rainfall) is July (0.2").

Average rainfall days in January - Hermiston, OR
  • Average rainfall days in January: 10 days

The month with the highest number of rainy days is December (11 days).
Months with the lowest number of rainy days are July and August (2 days).

Average snowfall in January - Hermiston, OR
  • Average snowfall in January: 5"

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

Average daylight in January - Hermiston, OR
  • Average daylight in January: 9.2h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).