What is the hottest month in Sinking Spring, PA?

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

What is the coldest month in Sinking Spring, PA?

January is the coldest month, with a normal low of 20°F.

What is the wettest month in Sinking Spring, PA?

July has the most precipitation on average, about 5.15 inches.

Checked Oct 25, 2026

Sinking Spring, PA Climate

1991 to 2020 normals at Blue Marsh Lake, 3.8 mi from the center of Sinking Spring, elevation 350 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	37°	20°	3.32 in	--
February	40°	21°	2.59 in	--
March	49°	29°	3.88 in	--
April	62°	38°	3.81 in	--
May	72°	49°	3.83 in	--
June	80°	58°	4.83 in	--
July	85°	63°	5.15 in	--
August	83°	62°	4.64 in	--
September	77°	54°	5.01 in	--
October	65°	42°	4.30 in	--
November	53°	33°	3.24 in	--
December	42°	25°	3.77 in	--
Year	62°		48.37 in	--

Frequently asked questions

What is the hottest month in Sinking Spring, PA?: July is the warmest month, with a normal high of 85°F at Blue Marsh Lake.
What is the coldest month in Sinking Spring, PA?: January is the coldest month, with a normal low of 20°F.
What is the wettest month in Sinking Spring, PA?: July has the most precipitation on average, about 5.15 inches.

Today

Sinking Spring, 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

See something wrong? Request a correction

About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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.

DatenUS is a private website and is not affiliated with or endorsed by any government agency. We republish public data from the sources listed on this page. Data can be incomplete, delayed or wrong. Always check the original source before you make a decision.

Our servers read this data automatically from government sources. Errors can come from the source itself or from the way we read, process or display it, and we do not guarantee that it is accurate, complete or current. Verify anything important with the official source.

Report an error Read the full disclaimer