Frost dates in Northumberland 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 Northumberland County falls Apr 24 to Apr 30 and the average first fall frost Oct 13 to Oct 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b. Places: Dalmatia, Dewart, Fairview-Ferndale, Herndon, Kulpmont, Marion Heights. 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
17017	Dalmatia	Apr 25	Oct 22	6b
17730	Dewart	Apr 24	Oct 23	6b
17749	McEwensville	Apr 26	Oct 20	6b
17777	Dewart	Apr 24	Oct 23	6b
17801	Snydertown	Apr 30	Oct 13	6b
17823		Apr 25	Oct 22	6b
17830	Herndon	Apr 25	Oct 22	6b
17832	Marion Heights	Apr 27	Oct 20	6b
17834	Kulpmont	Apr 27	Oct 20	6b
17836		Apr 27	Oct 20	6b
17840		Apr 27	Oct 20	6b
17847	Milton	Apr 26	Oct 20	6b
17850	Montandon	Apr 26	Oct 20	6b
17851	Mount Carmel	Apr 27	Oct 20	6b
17857	Northumberland	Apr 30	Oct 13	6b
17860		Apr 27	Oct 20	6b
17865		Apr 26	Oct 20	6b
17866	Fairview-Ferndale	Apr 27	Oct 20	6b
17867		Apr 25	Oct 22	6b
17868	Riverside	Apr 30	Oct 13	6b
17872	Shamokin	Apr 30	Oct 13	6b
17881	Trevorton	Apr 30	Oct 13	6b

Nearby counties

Montour County Snyder County Columbia County Union County Schuylkill County Dauphin County

All Pennsylvania counties · Download Pennsylvania frost dates (CSV)

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