What is the hottest month in Derry, PA?

July is the warmest month, with a normal high of 80°F at Laurel Mtn.

What is the coldest month in Derry, PA?

January is the coldest month, with a normal low of 19°F.

What is the wettest month in Derry, PA?

June has the most precipitation on average, about 4.99 inches.

Checked Oct 25, 2026

Derry, PA Climate

1991 to 2020 normals at Laurel Mtn, 11 mi from the center of Derry, elevation 2760 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	36°	19°	4.13 in	--
February	39°	20°	3.26 in	--
March	48°	27°	4.33 in	--
April	61°	38°	4.57 in	--
May	69°	48°	4.49 in	--
June	76°	57°	4.99 in	--
July	80°	61°	4.73 in	--
August	78°	59°	3.97 in	--
September	72°	52°	4.43 in	--
October	62°	41°	3.62 in	--
November	50°	33°	3.40 in	--
December	41°	26°	3.64 in	--
Year	59°		49.56 in	--

Frequently asked questions

What is the hottest month in Derry, PA?: July is the warmest month, with a normal high of 80°F at Laurel Mtn.
What is the coldest month in Derry, PA?: January is the coldest month, with a normal low of 19°F.
What is the wettest month in Derry, PA?: June has the most precipitation on average, about 4.99 inches.

Today

Derry, 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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