Last spring frost
Apr 4
Frost Dates for East Patchogue, NY
First fall frost
Nov 11
Growing season
219 days
Hardiness zone
7a
In an average year around East Patchogue, NY, the last spring frost (32°F) is about Apr 4 and the first fall frost is about Nov 11, giving roughly a 219-day growing season. To be safe most years, wait until Mar 22 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 8 | Apr 20 | Apr 5 |
| Freeze (32°F) | Apr 21 | Apr 4 | Mar 22 |
| Hard (28°F) | Apr 5 | Mar 24 | Mar 9 |
| Severe (24°F) | Mar 29 | Mar 14 | Feb 27 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 8 | May 2 | Apr 28 | Apr 24 | Apr 20 | Apr 17 | Apr 13 | Apr 9 | Apr 5 |
| 32°F | Apr 21 | Apr 14 | Apr 10 | Apr 7 | Apr 4 | Apr 2 | Mar 31 | Mar 28 | Mar 22 |
| 28°F | Apr 5 | Apr 1 | Mar 30 | Mar 27 | Mar 24 | Mar 22 | Mar 19 | Mar 15 | Mar 9 |
| 24°F | Mar 29 | Mar 25 | Mar 21 | Mar 17 | Mar 14 | Mar 11 | Mar 8 | Mar 4 | Feb 27 |
| 20°F | Mar 22 | Mar 15 | Mar 12 | Mar 8 | Mar 4 | Mar 1 | Feb 26 | Feb 21 | Feb 11 |
| 16°F | Mar 11 | Mar 5 | Feb 28 | Feb 24 | Feb 19 | Feb 13 | Feb 8 | Feb 3 | Jan 25 |
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 15 | Oct 30 | Nov 13 |
| Freeze (32°F) | Oct 27 | Nov 11 | Nov 29 |
| Hard (28°F) | Nov 6 | Nov 24 | Dec 12 |
| Severe (24°F) | Nov 18 | Dec 7 | Dec 26 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 15 | Oct 19 | Oct 23 | Oct 27 | Oct 30 | Nov 1 | Nov 4 | Nov 7 | Nov 13 |
| 32°F | Oct 27 | Oct 31 | Nov 3 | Nov 7 | Nov 11 | Nov 14 | Nov 18 | Nov 22 | Nov 29 |
| 28°F | Nov 6 | Nov 12 | Nov 16 | Nov 21 | Nov 24 | Nov 28 | Dec 2 | Dec 5 | Dec 12 |
| 24°F | Nov 18 | Nov 25 | Dec 1 | Dec 4 | Dec 7 | Dec 10 | Dec 14 | Dec 19 | Dec 26 |
| 20°F | Dec 2 | Dec 7 | Dec 12 | Dec 16 | Dec 21 | Dec 24 | Dec 28 | Jan 2 | Jan 10 |
| 16°F | Dec 13 | Dec 20 | Dec 26 | Dec 30 | Jan 2 | Jan 7 | Jan 12 | Jan 17 | Jan 26 |
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: Molloy Cercom, Ny, about 6.1 miles away@if(!empty($station['elevation_ft'])), at 5 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 East Patchogue, NY?
On average, the last spring frost (32°F) around East Patchogue, NY is about Apr 4. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 22.
When is the first frost in the fall?
The first fall frost around East Patchogue, NY typically arrives about Nov 11. 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 4 on average, or Mar 22 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 219 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 11772 Planting calendar → New York frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026