What is the hottest month in Clairton, PA?

July is the warmest month, with a normal high of 85°F at Mckeesport.

What is the coldest month in Clairton, PA?

January is the coldest month, with a normal low of 21°F.

What is the wettest month in Clairton, PA?

June has the most precipitation on average, about 5.00 inches.

Checked Oct 25, 2026

Clairton, PA Climate

1991 to 2020 normals at Mckeesport, 2.8 mi from the center of Clairton, elevation 740 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	39°	21°	3.04 in	--
February	42°	22°	2.54 in	--
March	51°	29°	3.20 in	--
April	64°	38°	3.76 in	--
May	74°	47°	3.99 in	--
June	81°	57°	5.00 in	--
July	85°	61°	4.12 in	--
August	83°	60°	3.53 in	--
September	77°	53°	3.45 in	--
October	65°	42°	3.20 in	--
November	53°	32°	2.98 in	--
December	43°	25°	3.55 in	--
Year	63°		42.36 in	--

Frequently asked questions

What is the hottest month in Clairton, PA?: July is the warmest month, with a normal high of 85°F at Mckeesport.
What is the coldest month in Clairton, PA?: January is the coldest month, with a normal low of 21°F.
What is the wettest month in Clairton, PA?: June has the most precipitation on average, about 5.00 inches.

Today

Clairton, PA 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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