Frost dates in Westmoreland County, Pennsylvania

Waterfall plunging over a rock ledge in the forest at Ricketts Glen State Park, Pennsylvania — Photo: Jason, CC BY 2.0, via Wikimedia Commons

The average last spring frost in Westmoreland County falls Apr 16 to May 5 and the average first fall frost Oct 6 to Nov 2, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Adamsburg, Arona, Bear Rocks, Bolivar, Bradenville, Calumet. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIP	Place	Last spring frost	First fall frost	Zone
15012	Fellsburg	Apr 27	Oct 22	6b
15062	Monessen	Apr 27	Oct 22	6b
15068	Lower Burrell	Apr 16	Nov 2	6b
15072	Lynnwood-Pricedale	Apr 27	Oct 22	6b
15083	Sutersville	May 2	Oct 20	6b
15085	Level Green	Apr 22	Oct 25	6b
15087	Webster	Apr 27	Oct 22	6b
15089	West Newton	Apr 27	Oct 22	6b
15448		Apr 27	Oct 22	6b
15479	Smithton	Apr 27	Oct 22	6b
15601	Greensburg	May 1	Oct 13	6b
15610	Bear Rocks	Apr 30	Oct 17	6a
15611	Adamsburg	May 1	Oct 13	6b
15612		May 1	Oct 13	6b
15613	Orchard Hills	Apr 29	Oct 20	6b
15615		May 2	Oct 20	6b
15616		May 1	Oct 13	6b
15617	Arona	May 1	Oct 13	6b
15619		May 1	Oct 13	6b
15620	Bradenville	May 2	Oct 14	6b
15623		Apr 29	Oct 20	6b
15624	Crabtree	May 2	Oct 14	6b
15625		May 1	Oct 13	6b
15626	Delmont	Apr 29	Oct 20	6b
15627	Derry	May 2	Oct 14	6b
15628	Donegal	Apr 30	Oct 17	6a
15629	East Vandergrift	Apr 29	Oct 20	6b
15632	Murrysville	Apr 29	Oct 20	6b
15633		May 2	Oct 14	6b
15634	Grapeville	May 1	Oct 13	6b
15635		May 2	Oct 14	6b
15636	Manor	Apr 22	Oct 25	6b
15637	Herminie	May 2	Oct 20	6b
15638	Hostetter	May 1	Oct 13	6b
15639	New Stanton	May 1	Oct 13	6b
15640		Apr 27	Oct 22	6b
15641	Hyde Park	May 4	Oct 16	6b
15642	Irwin	May 2	Oct 20	6b
15644	Jeannette	May 1	Oct 13	6b
15646		Apr 30	Oct 17	6a
15647		May 2	Oct 20	6b
15650	Latrobe	May 1	Oct 13	6b
15655	Laurel Mountain	Apr 26	Oct 17	6a
15656	West Leechburg	May 4	Oct 16	6b
15658	Ligonier	Apr 26	Oct 17	6a
15660		Apr 27	Oct 22	6b
15661	Loyalhanna	May 1	Oct 13	6b
15662		May 2	Oct 14	6b
15663	Madison	May 1	Oct 13	6b
15665	Manor	May 2	Oct 20	6b
15666	Mammoth	May 1	Oct 13	6b
15668	Murrysville	Apr 29	Oct 20	6b
15670	New Alexandria	May 2	Oct 14	6b
15671		May 2	Oct 14	6b
15672	New Stanton	May 1	Oct 13	6b
15674	Norvelt	May 1	Oct 13	6b
15675	Penn	May 1	Oct 13	6b
15676		May 1	Oct 13	6b
15677		May 5	Oct 6	6a
15678		May 2	Oct 20	6b
15679		May 1	Oct 13	6b
15680		Apr 29	Oct 20	6b
15683	Scottdale	May 1	Oct 13	6b
15684	Slickville	May 2	Oct 14	6b
15687		May 5	Oct 6	6a
15688		May 1	Oct 13	6b
15689	Calumet	May 1	Oct 13	6b
15691		May 2	Oct 20	6b
15692		May 2	Oct 20	6b
15693		May 1	Oct 13	6b
15695	Wyano	Apr 27	Oct 22	6b
15696	Youngstown	May 1	Oct 13	6b
15697	Youngwood	May 1	Oct 13	6b
15698	Yukon	May 1	Oct 13	6b
15779		May 2	Oct 14	6b
15923	Bolivar	Apr 26	Oct 17	6b
15944	New Florence	Apr 26	Oct 17	6b

Nearby counties

Allegheny County Fayette County Washington County Indiana County Armstrong County Somerset County

All Pennsylvania counties · Download Pennsylvania frost dates (CSV)

Never miss a frost: get The Dial

Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.

Freeze alerts
Soil-temp heads-up
Weekly yard to-dos

Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.