USDA Hardiness Zone 7a
Frost Dates for 08270 — Woodbine, New Jersey
NOAA 1991–2020 normals from Belleplain Stn Forest, NJ (30 ft), 3 miles southwest.
Updated
In Woodbine, the last spring frost (32°F) is around April 24 in half of years and has passed by May 18 in nine years out of ten. The first fall frost comes around October 22, as early as October 8 one year in ten, leaving a typical freeze-free season of 181 days (NOAA, Belleplain Stn Forest, NJ).
- Last spring frost
- April 24
- First fall frost
- October 22
- Growing season
- 181 days
- Hardiness zone
- 7a
50% probability
50% probability
freeze-free, 50%
0 to 5°F (-17.8 to -15.0°C) coldest night
- First snow
- December 16
- Last snow
- March 21
- Winters with snow
- 100%
- Snow per year
- 22"
median, 1991–2020
median, 1991–2020
30 of 30 observed
NOAA normal
Frost risk by date in Woodbine
Half of springs at Belleplain Stn Forest, NJ see their last 32°F night by April 24; only one in ten is past it by April 5, and one in ten still has one after May 18. Planting tender crops after May 3 leaves a 30% risk of a frost on them, after May 10 20%, and after May 18 10%. The 24 days between the even-odds date and the one-in-ten date is the widest of the 56 New Jersey stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.
In fall the first 32°F night comes by October 22 in half of years, as early as October 8 one year in ten, and holds off past November 3 one year in ten. A hard freeze of 28°F follows 13 days later, around November 4; in spring the one-in-ten date for 28°F is May 3, 15 days before the 32°F one. The freeze-free season lasts 181 days in a typical year, shorter than at 71% of the 56 New Jersey stations; it reaches 204 days one year in ten and falls short of 153 one year in ten. On average 118 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 13 days longer, to about May 7, and return around October 13. Severe cold of 16°F or below comes every winter, usually between December 19 and March 1.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 20 | Apr 25 | Apr 30 | May 3 | May 7 | May 12 | May 17 | May 21 | May 27 |
| 32°F | Apr 5 | Apr 11 | Apr 16 | Apr 20 | Apr 24 | Apr 30 | May 3 | May 10 | May 18 |
| 28°F | Mar 23 | Mar 29 | Mar 31 | Apr 3 | Apr 6 | Apr 11 | Apr 16 | Apr 22 | May 3 |
| 24°F | Mar 9 | Mar 15 | Mar 19 | Mar 22 | Mar 26 | Mar 30 | Apr 1 | Apr 4 | Apr 11 |
| 20°F | Feb 23 | Mar 2 | Mar 6 | Mar 10 | Mar 14 | Mar 17 | Mar 21 | Mar 26 | Mar 31 |
| 16°F | Feb 3 | Feb 13 | Feb 20 | Feb 26 | Mar 1 | Mar 5 | Mar 9 | Mar 14 | Mar 21 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 1 | Oct 4 | Oct 8 | Oct 10 | Oct 13 | Oct 15 | Oct 18 | Oct 21 | Oct 25 |
| 32°F | Oct 8 | Oct 13 | Oct 16 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Oct 31 | Nov 3 |
| 28°F | Oct 20 | Oct 27 | Oct 30 | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 18 |
| 24°F | Nov 3 | Nov 6 | Nov 10 | Nov 13 | Nov 16 | Nov 19 | Nov 23 | Nov 27 | Dec 1 |
| 20°F | Nov 12 | Nov 19 | Nov 23 | Nov 27 | Dec 1 | Dec 3 | Dec 7 | Dec 13 | Dec 22 |
| 16°F | Nov 27 | Dec 4 | Dec 8 | Dec 13 | Dec 19 | Dec 24 | Dec 30 | Jan 3 | Jan 14 |
Freeze probabilities 1991–2020 at Belleplain Stn Forest, NJ, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 08270 →Compare Woodbine with another place →
Weather by month in Woodbine
July is the warmest month at Belleplain Stn Forest, NJ, averaging 88°F by day and 66°F at night; January is the coldest at 46°F and 25°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 37% of years.
Warmth for growing adds up to 3,772 growing degree days a year (base 50°F), more than at 79% of the 56 New Jersey stations. 34% of them (1,265) have built up by the end of June, and July adds the most, 831.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 46 | 25 | 100% | 24 | 12 |
| Feb | 49 | 26 | 100% | 22 | 7 |
| Mar | 55 | 31 | 100% | 19 | 31 |
| Apr | 67 | 40 | 92% | 8 | 166 |
| May | 76 | 49 | 37% | 2 | 391 |
| Jun | 84 | 60 | 1% | <1 | 658 |
| Jul | 88 | 66 | 0% | 0 | 831 |
| Aug | 86 | 64 | 0% | 0 | 773 |
| Sep | 80 | 58 | 1% | <1 | 567 |
| Oct | 71 | 44 | 82% | 5 | 255 |
| Nov | 60 | 34 | 100% | 15 | 67 |
| Dec | 51 | 28 | 100% | 22 | 14 |
Monthly normals 1991–2020 at Belleplain Stn Forest, NJ (30 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Estell Manor, NJ, 8 miles north of Woodbine, has the same 50% last-frost date, the same first-frost date, a season 1 day shorter.
When it snows in Woodbine, New Jersey
The first measurable snow (0.1 inch or more) in Woodbine usually arrives around December 16, and the last of the season around March 21. Those are the middle dates across the winters of 1991–2020 at Estell Manor, NJ, 7.6 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 34 days after the last snow.
Planting calendar for 08270
| When | What to do |
|---|---|
| February 13 – February 27 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 27 – March 13 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 27 – April 10 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 24 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 30 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 8 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 22 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 08270 is 3 miles from Belleplain Stn Forest, NJ, which stands at 30 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 08270 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across New Jersey →
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.