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

August weather forecast and climate
Umatilla, OR

August, the last month of the summer, in Umatilla, is another tropical month, with average temperature ranging between min 57.4°F (14.1°C) and max 90.5°F (32.5°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still hot 90.5°F (32.5°C). In August, in Umatilla, the average low-temperature is 57.4°F (14.1°C).

Rainfall

In Umatilla, Oregon, in August, it is raining for 2 days, with typically 0.3" (6.4mm) of accumulated precipitation. Throughout the year, there are 60 rainfall days, and 8" (203.8mm) of precipitation is accumulated.

Snowfall

In Umatilla, Oregon, during the entire year, snow aggregates up to 8.1" (205.7mm).

Daylight

The average length of the day in August in Umatilla is 14.1h.

What is the temperature in August in Umatilla?

The average high-temperature, in August, in Umatilla, is 90.5°F (32.5°C), while the average low-temperature is 57.4°F (14.1°C).

How much does it rain in Umatilla in August?

In Umatilla, Oregon, in August, during 2 rainfall days, 0.3" (6.4mm) of precipitation is typically accumulated.

What is the average length of the day in August in Umatilla?

In Umatilla, Oregon, the average length of the day in August is 14.1h.
Average temperature in August - Umatilla, OR
  • Average high temperature in August: 32.5°C

The warmest month (with the highest average high temperature) is July (33.7°C).
The month with the lowest average high temperature is January (4.4°C).

  • Average low temperature in August: 14.1°C

The month with the highest average low temperature is July (15.2°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average rainfall in August - Umatilla, OR
  • Average rainfall in August: 6.4mm

The wettest month (with the highest rainfall) is December (27.7mm).
The driest month (with the lowest rainfall) is July (4.1mm).

Average rainfall days in August - Umatilla, OR
  • Average rainfall days in August: 2 days

Months with the highest number of rainy days are January and December (8 days).
The month with the lowest number of rainy days is July (1 days).

Average snowfall in August - Umatilla, OR
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (99.1mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

Average daylight in August - Umatilla, OR
  • Average daylight in August: 14.1h

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