Monthly weather forecast and climate
Umatilla, OR

What is the coldest month in Umatilla?

January is the coldest month, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 25.2°F (-3.8°C).

How many days does it rain in Umatilla?

Throughout the year, in Umatilla, there are 60 rainfall days, and 8" (203.8mm) of precipitation is accumulated.

When does it snow in Umatilla?

January through March, November and December are months with snowfall in Umatilla.

How much does it snow in Umatilla?

Throughout the year, in Umatilla, 8.1" (205.7mm) of snow is accumulated.

When does it snow the most in Umatilla?

The month with the most snowfall is January when 3.9" (99.1mm) of snow is typically aggregated.

What is the warmest month in Umatilla?

With an average high-temperature of 92.7°F (33.7°C) and an average low-temperature of 59.4°F (15.2°C), July is the warmest month in Umatilla, Oregon.

What is the driest month in Umatilla?

The month with the least rainfall in Umatilla, Oregon, is July when the rain falls for 1 days and typically collects 0.2" (4.1mm) of precipitation.

What is the wettest month in Umatilla?

December is the month with the most rainfall. Rain falls for 8 days and accumulates 1.1" (27.7mm) of precipitation.
Average rainfall - Umatilla, OR

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 - Umatilla, OR
Average snowfall - Umatilla, OR

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 - Umatilla, OR

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

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