Frost dates in Mercer 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 Mercer County falls Apr 30 to May 15 and the average first fall frost Oct 3 to Oct 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a. Places: Clark, Farrell, Fredonia, Greenville, Grove City, Hermitage. 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
16113	Clark	May 15	Oct 3	6a
16114		May 15	Oct 3	6a
16121	Farrell	May 1	Oct 17	6a
16124	Fredonia	May 15	Oct 3	6a
16125	Greenville	May 4	Oct 14	6a
16127	Grove City	May 7	Oct 14	6a
16130	Sheakleyville	Apr 30	Oct 23	6a
16133	Jackson Center	May 15	Oct 3	6a
16137	Lake Latonka	May 15	Oct 3	6a
16142	New Wilmington	May 15	Oct 3	6a
16145	New Lebanon	May 2	Oct 23	6a
16146	Sharon	May 1	Oct 17	6a
16148	Hermitage	May 15	Oct 3	6a
16150	Clark	May 15	Oct 3	6a
16151	Sheakleyville	Apr 30	Oct 23	6a
16153	Stoneboro	May 15	Oct 3	6a
16154		May 15	Oct 3	6a
16159	West Middlesex	Apr 30	Oct 23	6a
16161	Wheatland	May 1	Oct 17	6a
16311		May 2	Oct 23	6a

Nearby counties

Lawrence County Crawford County Venango County Butler County Beaver County Clarion County

All Pennsylvania counties · Download Pennsylvania frost dates (CSV)

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