Pendleton Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Pendleton, Oregon. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Pendleton?

In Pendleton, January has the greatest precipitation of any month. On average, Pendleton gets 1.5 inches of precipitation in January.

January is also the month where rain is most common. 39.7% of days in January will have at least some rain or snow.

What's the Driest Month in Pendleton?

In Pendleton, July has the least precipitation of any month. On average, Pendleton gets 0.26 inches of precipitation in July.

August is the month with the lowest chance of precipitation. Only 7.1% of days in August will have measurable rain.

Month	Precipitation	% Chance
January	1.52 in	39.7
February	1.19 in	34.7
March	1.33 in	37.3
April	1.21 in	32.1
May	1.45 in	31.1
June	1.05 in	21.8
July	0.26 in	7.8
August	0.31 in	7.1
September	0.52 in	12.8
October	1.09 in	26.5
November	1.39 in	38.8
December	1.50 in	40.2
Year	12.82 in	27.4

Weather Station Details

Years	Station	Coordinates
1928–2024	Pendleton	location
1892–1927	Pendleton Downtown	location