Last spring frost
Apr 11
Frost Dates for Newfield, NJ
First fall frost
Nov 3
Growing season
206 days
Hardiness zone
7a
In an average year around Newfield, NJ, the last spring frost (32°F) is about Apr 11 and the first fall frost is about Nov 3, giving roughly a 206-day growing season. To be safe most years, wait until Mar 29 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 11 | Apr 26 | Apr 11 |
| Freeze (32°F) | Apr 27 | Apr 11 | Mar 29 |
| Hard (28°F) | Apr 14 | Mar 30 | Mar 12 |
| Severe (24°F) | Mar 31 | Mar 16 | Feb 27 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 11 | May 5 | May 1 | Apr 29 | Apr 26 | Apr 22 | Apr 19 | Apr 16 | Apr 11 |
| 32°F | Apr 27 | Apr 21 | Apr 18 | Apr 15 | Apr 11 | Apr 8 | Apr 5 | Apr 2 | Mar 29 |
| 28°F | Apr 14 | Apr 8 | Apr 4 | Apr 1 | Mar 30 | Mar 26 | Mar 22 | Mar 18 | Mar 12 |
| 24°F | Mar 31 | Mar 27 | Mar 22 | Mar 19 | Mar 16 | Mar 12 | Mar 9 | Mar 4 | Feb 27 |
| 20°F | Mar 20 | Mar 14 | Mar 10 | Mar 7 | Mar 4 | Mar 1 | Feb 25 | Feb 19 | Feb 11 |
| 16°F | Mar 9 | Mar 5 | Feb 28 | Feb 24 | Feb 19 | Feb 14 | Feb 7 | Feb 3 | Jan 24 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 7 | Oct 23 | Nov 7 |
| Freeze (32°F) | Oct 18 | Nov 3 | Nov 18 |
| Hard (28°F) | Oct 31 | Nov 14 | Dec 2 |
| Severe (24°F) | Nov 10 | Nov 29 | Dec 17 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 7 | Oct 12 | Oct 16 | Oct 20 | Oct 23 | Oct 26 | Oct 30 | Nov 2 | Nov 7 |
| 32°F | Oct 18 | Oct 24 | Oct 28 | Oct 31 | Nov 3 | Nov 5 | Nov 9 | Nov 13 | Nov 18 |
| 28°F | Oct 31 | Nov 4 | Nov 8 | Nov 11 | Nov 14 | Nov 17 | Nov 22 | Nov 27 | Dec 2 |
| 24°F | Nov 10 | Nov 16 | Nov 21 | Nov 25 | Nov 29 | Dec 2 | Dec 5 | Dec 10 | Dec 17 |
| 20°F | Nov 24 | Dec 1 | Dec 5 | Dec 10 | Dec 14 | Dec 20 | Dec 24 | Dec 30 | Jan 6 |
| 16°F | Dec 9 | Dec 16 | Dec 21 | Dec 26 | Dec 30 | Jan 2 | Jan 8 | Jan 14 | Jan 24 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Woodstown Pittsgrov 4E, Nj, about 9.6 miles away@if(!empty($station['elevation_ft'])), at 98 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Newfield, NJ?
On average, the last spring frost (32°F) around Newfield, NJ is about Apr 11. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 29.
When is the first frost in the fall?
The first fall frost around Newfield, NJ typically arrives about Nov 3. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 11 on average, or Mar 29 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 206 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 08344 Planting calendar → New Jersey frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026