Bield:Farm
Frost dates · New Jersey

New Jersey frost dates,
county by county.

Last spring frost and first fall frost probability data for all 21 counties in New Jersey, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.

Variation across New Jersey

31 days separate the earliest and latest counties.

The median last spring frost in Cape May County is March 19 — 31 days earlier than Sussex County at April 19. Statewide averages aren't useful planting tools; pick your county below for the data that actually applies to your fields.

By geography

New Jersey counties on the map.

Each dot is a county. Click for full frost-date detail. Color shows last-spring-frost timing — sage = earliest, amber = latest.

ListMap
Cumberland County · Spring Apr 10 · Fall Nov 2 · 206-day seasonHunterdon County · Spring Apr 8 · Fall Nov 2 · 208-day seasonWarren County · Spring Apr 16 · Fall Oct 29 · 196-day seasonSomerset County · Spring Apr 15 · Fall Oct 31 · 199-day seasonOcean County · Spring Apr 8 · Fall Nov 1 · 207-day seasonBergen County · Spring Mar 23 · Fall Nov 16 · 238-day seasonMiddlesex County · Spring Apr 2 · Fall Nov 7 · 219-day seasonAtlantic County · Spring Apr 5 · Fall Nov 8 · 217-day seasonBurlington County · Spring Apr 15 · Fall Oct 27 · 195-day seasonCape May County · Spring Mar 19 · Fall Nov 23 · 249-day seasonEssex County · Spring Apr 3 · Fall Nov 4 · 215-day seasonMercer County · Spring Apr 2 · Fall Nov 7 · 219-day seasonHudson County · Spring Mar 26 · Fall Nov 19 · 238-day seasonMonmouth County · Spring Apr 2 · Fall Nov 3 · 215-day seasonSussex County · Spring Apr 19 · Fall Oct 25 · 189-day seasonUnion County · Spring Mar 30 · Fall Nov 12 · 227-day seasonMorris County · Spring Apr 4 · Fall Nov 2 · 212-day seasonCamden County · Spring Mar 27 · Fall Nov 11 · 229-day seasonSalem County · Spring Mar 29 · Fall Nov 13 · 229-day seasonGloucester County · Spring Mar 27 · Fall Nov 11 · 229-day seasonPassaic County · Spring Apr 4 · Fall Nov 4 · 214-day season
Last spring frostEarliestMedianLatest
21 counties · click any county for full frost data
Alphabetical

All New Jersey counties — A to Z.

Frost dates set the calendar. Bield: Farm runs it.

Pair these dates with live forecasts for your specific farm location. Bield: Farm logs your soil tests, planting dates, weather, and yield outcomes year over year.

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