New Jersey Frost Dates: Last and First Frost by Town

48 NOAA weather stations · 1991–2020 U.S. Climate Normals · Data updated 2026-10-29

Quick answer

Across New Jersey's 48 NOAA stations with regular frost, the median last spring frost is April 17 and the median first fall frost is October 27. Last frost dates range from March 26 at Atlantic City to May 1 at Sussex Airport, so enter your ZIP code below for the station nearest you.

How frost dates vary across New Jersey

North vs south: stations in the northern third of the state (north of 40.7°N) reach their median last frost about 6 days later than the southern third (south of 40.0°N).
Safety margin: the median 10%-risk date (May 3) is about 16 days after the median last frost. Waiting until then cuts the chance of a killing frost on tender transplants from 1 in 2 to 1 in 10.

Frost dates at New Jersey's major weather stations

These National Weather Service stations, mostly at airports, have the longest and most complete records in the state.


Andover Aeroflex Airport	583	Apr 25	May 11	Oct 19	175
Atlantic City	10	Mar 26	Apr 6	Nov 21	240
Atlantic City Intl Airport	60	Apr 18	May 5	Oct 29	190
Caldwell Essex County Airport	173	Apr 14	Apr 30	Oct 28	196
Millville Municipal Airport	70	Apr 24	May 10	Oct 23	181
Mount Holly S Jersey Airport	53	Apr 15	May 2	Oct 28	195
Newark Intl Airport	7	Apr 2	Apr 15	Nov 10	222
Somerville Somerset Airport	105	Apr 26	May 13	Oct 18	176
Sussex Airport	421	May 1	May 18	Oct 12	164
Teterboro Airport	9	Apr 3	Apr 16	Nov 4	215
Trenton Mercer County Airport	184	Apr 10	Apr 25	Nov 1	202

All 48 stations in New Jersey

Last frost and first frost are medians: a 50% chance of a 32°F night after (spring) or before (fall) that date. 10% risk is the spring date with only a 1-in-10 chance of a later frost. Click a column to sort.

Filter by station name


Andover Aeroflex Airport	583	Apr 25	May 11	Oct 19	175
Atlantic City	10	Mar 26	Apr 6	Nov 21	240
Atlantic City Intl Airport	60	Apr 18	May 5	Oct 29	190
Belleplain Station Forest	30	Apr 24	May 18	Oct 22	181
Belvidere Brg	263	Apr 30	May 18	Oct 18	168
Boonton 1 SE	280	Apr 17	May 5	Oct 23	189
Brant Beach-beach Haven	5	Apr 1	Apr 15	Nov 15	230
Caldwell Essex County Airport	173	Apr 14	Apr 30	Oct 28	196
Canoe Brook	180	Apr 18	May 6	Oct 27	189
Cape May 2 NW	20	Apr 1	Apr 15	Nov 9	222
Charlotteburg Rsvr	778	Apr 25	May 11	Oct 17	174
Cranford	80	Apr 11	Apr 28	Oct 31	202
Essex Fells Service Bldg	350	Apr 18	May 7	Oct 24	187
Estell Manor	85	Apr 24	May 12	Oct 22	180
Flemington 5 NNW	265	Apr 24	May 11	Oct 21	179
Freehold-marlboro	194	Apr 17	May 6	Oct 23	190
Glassboro 2 NE	100	Apr 8	Apr 22	Nov 1	205
Hammonton 1 NE	125	Apr 14	Apr 27	Oct 27	196
Harrison	24	Apr 4	Apr 16	Nov 6	216
Hightstown 2 W	100	Apr 25	May 12	Oct 16	173
Indian Mills 2 W	100	Apr 28	May 16	Oct 15	169
Lambertville	68	Apr 16	Apr 30	Oct 19	185
Little Falls	150	Apr 15	May 1	Oct 28	195
Long Branch-oakhurst	30	Apr 9	Apr 23	Nov 3	208
Margate	16	Mar 26	Apr 7	Nov 22	243
Millville Municipal Airport	70	Apr 24	May 10	Oct 23	181
Moorestown	45	Apr 12	May 3	Nov 1	200
Mount Holly S Jersey Airport	53	Apr 15	May 2	Oct 28	195
New Brunswick 3 SE	111	Apr 15	May 1	Oct 26	193
Newark Intl Airport	7	Apr 2	Apr 15	Nov 10	222
Newton	605	Apr 24	May 9	Oct 16	176
Pennsauken 1N	46	Apr 15	May 1	Oct 31	199
Philadelphia/mt Holly WFO	63	Apr 15	Apr 29	Oct 29	196
Phillipsburg-easton Brg	232	Apr 18	May 5	Oct 25	188
Plainfield	90	Apr 11	Apr 27	Oct 28	198
Seabrook Farms	104	Apr 10	Apr 25	Nov 1	205
Somerville 4 NW	134	Apr 30	May 14	Oct 20	172
Somerville Somerset Airport	105	Apr 26	May 13	Oct 18	176
Sussex 3 WNW	667	Apr 30	May 18	Oct 11	163
Sussex 8 NNW	1,020	Apr 20	May 5	Oct 20	181
Sussex Airport	421	May 1	May 18	Oct 12	164
Teterboro Airport	9	Apr 3	Apr 16	Nov 4	215
Toms River	10	Apr 23	May 12	Oct 20	179
Trenton Mercer County Airport	184	Apr 10	Apr 25	Nov 1	202
Trenton State College	100	Apr 17	May 6	Oct 28	192
Wanaque Raymond Dam	245	Apr 19	May 3	Oct 23	188
Wertsville 4 NE	283	Apr 16	May 1	Oct 27	192
Woodstown Pittsgrov 4E	98	Apr 11	Apr 27	Nov 3	206

Frequently asked questions

When is the last frost in New Jersey?

The median last spring frost (32°F) across New Jersey's NOAA weather stations is April 17, based on 1991–2020 climate normals. It ranges from March 26 at Atlantic City to May 1 at Sussex Airport. For a safer planting date, use the 10%-risk date; the state median for that is May 3.

When is the first frost in New Jersey?

The median first fall frost across New Jersey's stations is October 27. The earliest median first frost is October 11 at Sussex 3 WNW, and the latest is November 22 at Margate.

How long is the growing season in New Jersey?

The median frost-free season is 191 days across New Jersey's stations, from 163 days at Sussex 3 WNW to 243 days at Margate.

When should I plant tomatoes in New Jersey?

Plant tomatoes outdoors after your local last frost, ideally after the 10%-risk date when nights stay above 50°F. At a typical New Jersey station that means starting seeds indoors 6–8 weeks before April 17 and transplanting from about May 3. Check your ZIP code, because dates vary by weeks across the state.

How to use these dates

Frost dates are 30-year averages from NOAA, not forecasts. Use them to plan seed starting and planting, then watch the 10-day forecast as the date approaches. Cold air settles in valleys and low spots, so a garden at the bottom of a slope can frost a week or more later in spring than the nearest station shows.

Ready to plan? The planting calendar by ZIP code turns these dates into start-indoors, transplant and sowing dates for 30 crops.

Sources and method

Dates are the 32°F freeze probabilities published in the NOAA NCEI 1991–2020 U.S. Climate Normals for each station. Station names are NOAA's, lightly expanded for readability. See the methodology or download the full table.