What is the hottest month in Seneca, OR?

July is the warmest month, with a normal high of 82°F at Seneca.

What is the coldest month in Seneca, OR?

January is the coldest month, with a normal low of 11°F.

What is the wettest month in Seneca, OR?

December has the most precipitation on average, about 1.82 inches.

Checked Oct 25, 2026

Seneca, OR Climate

1991 to 2020 normals at Seneca, 0.2 mi from the center of Seneca, elevation 4660 ft.

Average weather by month

Select a month for daily normals and last year's weather

Month	High	Low	Precip.	Snow
January	36°	11°	1.58 in	--
February	40°	14°	1.01 in	--
March	46°	20°	1.23 in	--
April	53°	25°	1.18 in	--
May	62°	32°	1.71 in	--
June	70°	36°	1.19 in	--
July	82°	39°	0.53 in	--
August	82°	35°	0.38 in	--
September	73°	27°	0.53 in	--
October	60°	21°	1.07 in	--
November	44°	17°	1.44 in	--
December	36°	11°	1.82 in	--
Year	57°		13.67 in	--

Frequently asked questions

What is the hottest month in Seneca, OR?: July is the warmest month, with a normal high of 82°F at Seneca.
What is the coldest month in Seneca, OR?: January is the coldest month, with a normal low of 11°F.
What is the wettest month in Seneca, OR?: December has the most precipitation on average, about 1.82 inches.

Today

Seneca, OR forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information · Official site
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information · Official site

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About this data

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Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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