Tillamook Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Tillamook?

In Tillamook, November has the greatest precipitation of any month. On average, Tillamook gets 13.3 inches of precipitation in November.

November is also the month where rain is most common. 75.6% of days in November will have at least some rain.

What's the Driest Month in Tillamook?

In Tillamook, July has the least precipitation of any month. On average, Tillamook gets 0.95 inches of precipitation in July.

July is also the month where rain is least common. 20.3% of days in July will have measurable rain.

Month	Precipitation	% Chance
January	12.92 in	72.3
February	9.20 in	66.5
March	9.77 in	69.8
April	7.55 in	65.0
May	4.53 in	47.8
June	3.14 in	41.8
July	0.95 in	20.3
August	1.31 in	23.5
September	3.12 in	32.2
October	7.82 in	55.6
November	13.26 in	75.6
December	14.81 in	74.6
Year	89.18 in	53.6

Weather Station Details

Years	Station	Coordinates
1948–2022	Tillamook	location