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

October weather forecast and climate
Hermiston, OR

October, the same as September, is another enjoyable autumn month in Hermiston, Oregon, with average temperature fluctuating between 37.9°F (3.3°C) and 66.7°F (19.3°C).

Temperature

In October, the average high-temperature decreases, from a warm 79.7°F (26.5°C) in September, to a comfortable 66.7°F (19.3°C). In October, in Hermiston, Oregon, the average low-temperature is 37.9°F (3.3°C).

Rainfall

In Hermiston, during October, the rain falls for 6 days and regularly aggregates up to 0.7" (18.3mm) of precipitation. In Hermiston, during the entire year, the rain falls for 77 days and collects up to 8.8" (224.6mm) of precipitation.

Snowfall

In Hermiston snow does not fall in April through October.

Daylight

The average length of the day in October is 10.9h.

What is the temperature in October in Hermiston?

The average high-temperature, in October, is 66.7°F (19.3°C), while the average low-temperature is 37.9°F (3.3°C).

How many days does it rain in October in Hermiston?

In Hermiston, in October, during 6 rainfall days, 0.7" (18.3mm) of precipitation is typically accumulated.

Does it snow in Hermiston in October?

In Hermiston, in October, it doesn't snow. In November, it regularly snows.

When it does not snow in Hermiston?

In Hermiston snow does not fall in April through October.

What is the average length of the day in October in Hermiston?

The average length of the day in October is 10.9h.
Average temperature in October - Hermiston, OR
  • Average high temperature in October: 66.8°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 October: 37.9°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 October - Hermiston, OR
  • Average rainfall in October: 0.7"

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 October - Hermiston, OR
  • Average rainfall days in October: 6 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 October - Hermiston, OR
  • Average snowfall in October: 0"

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 October - Hermiston, OR
  • Average daylight in October: 10.9h

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