Yaphank, NY frost dates
Last spring frostApr 18median date
First fall frostOct 28median date
Growing season193 daysfrost-free
Hardiness zone7aZone 7a
How Yaphank compares
- In 8 years out of 10, the last spring frost in Yaphank falls between April 4 and May 1, a 27-day window. The first fall frost falls between October 13 and November 11.
- The median last frost is 15 days earlier than the New York median of May 3.
- Its 193-day growing season is longer than 86% of the 1,610 New York places with a regular frost season (state median 163 days).
- The last frost is typical for zone 7a, where the median is Apr 16.
- The weather station records an average of 104 nights a year at or below 32°F.
- Compared with Brentwood, NY, 29 km away, the last frost here is 8 days later than there and the growing season is 13 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 4 |
| 50% (median) | April 18 |
| 10% (safe for tender plants) | May 1 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 13 |
| 50% (median) | October 28 |
| 90% (late) | November 11 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Yaphank, NY
Yaphank, NY frost dates — last frost Apr 18, first frost Oct 28, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Jan 24 to Feb 7Transplant outside: Mar 21 to Apr 4
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 25 to May 9
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Sow outdoors: Mar 21 to Apr 25Plant for fall: Sep 2 to Sep 30
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 21 to Apr 4Plant for fall: Aug 19 to Sep 9
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 22 to Aug 12
Start indoors: Mar 7 to Mar 21Transplant outside: May 9 to May 23Sow outdoors: May 9 to May 23
Start indoors: Mar 7 to Mar 21Transplant outside: Apr 25 to May 9
Sow outdoors: Mar 7 to Mar 28Plant for fall: Aug 5 to Aug 26
Sow outdoors: Mar 7 to Mar 28Plant for fall: Sep 2 to Sep 23
Sow outdoors: Mar 14 to Apr 25Plant for fall: Sep 16 to Oct 7
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 9Sow outdoors: Apr 25 to May 9Plant for fall: Aug 12 to Aug 26
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9Plant for fall: Aug 19 to Sep 2
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 16
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 5 to Aug 19
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 19 to Sep 2
Sow outdoors: Mar 28 to Apr 18
Sow outdoors: Apr 4 to May 2Plant for fall: Aug 19 to Sep 2
Sow outdoors: Apr 4 to Apr 25Plant for fall: Sep 2 to Sep 23
Sow outdoors: Apr 25 to May 16Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 25 to May 9
Transplant outside: May 2 to May 23
Plant for fall: Oct 14 to Nov 18
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Yaphank, NY
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 24 – Feb 7 | Mar 21 – Apr 4 | — | — |
| Peppers | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Eggplant | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Tomatoes | Feb 21 – Mar 7 | Apr 25 – May 9 | — | — |
| Lettuce | Feb 21 – Mar 7 | Mar 28 – Apr 11 | Mar 21 – Apr 25 | Sep 2 – Sep 30 |
| Kale | Feb 21 – Mar 7 | Mar 21 – Apr 4 | Mar 21 – Apr 4 | Aug 19 – Sep 9 |
| Broccoli | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 22 – Aug 12 |
| Cabbage | Feb 21 – Mar 7 | Mar 28 – Apr 11 | — | Jul 22 – Aug 12 |
| Cauliflower | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 22 – Aug 12 |
| Okra | Mar 7 – Mar 21 | May 9 – May 23 | May 9 – May 23 | — |
| Basil | Mar 7 – Mar 21 | Apr 25 – May 9 | — | — |
| Peas | — | — | Mar 7 – Mar 28 | Aug 5 – Aug 26 |
| Spinach | — | — | Mar 7 – Mar 28 | Sep 2 – Sep 23 |
| Radishes | — | — | Mar 14 – Apr 25 | Sep 16 – Oct 7 |
| Cucumbers | Mar 21 – Mar 28 | May 2 – May 9 | Apr 25 – May 9 | Aug 12 – Aug 26 |
| Zucchini & Summer Squash | Mar 21 – Mar 28 | — | Apr 25 – May 9 | Aug 19 – Sep 2 |
| Winter Squash & Pumpkins | Mar 21 – Mar 28 | — | Apr 25 – May 9 | — |
| Melons & Watermelon | Mar 21 – Mar 28 | May 2 – May 16 | — | — |
| Carrots | — | — | Mar 28 – Apr 25 | Aug 5 – Aug 19 |
| Beets | — | — | Mar 28 – Apr 25 | Aug 19 – Sep 2 |
| Potatoes | — | — | Mar 28 – Apr 18 | — |
| Swiss Chard | — | — | Apr 4 – May 2 | Aug 19 – Sep 2 |
| Cilantro | — | — | Apr 4 – Apr 25 | Sep 2 – Sep 23 |
| Green Beans | — | — | Apr 25 – May 16 | Aug 12 – Aug 26 |
| Sweet Corn | — | — | Apr 25 – May 9 | — |
| Sweet Potatoes | — | May 2 – May 23 | — | — |
| Garlic | — | — | — | Oct 14 – Nov 18 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Shirley Brookhaven Ap, NY weather station, 4 km away (elevation 82 ft (25 m)).
Frost dates near Yaphank
- Upton Apr 21 · Oct 24
- Middle Island Apr 21 · Oct 24
- Shirley Apr 18 · Oct 28
- Mastic Apr 18 · Oct 28
- Medford Apr 18 · Oct 28
- Brookhaven Apr 18 · Oct 28
- Bellport Apr 18 · Oct 28
- Ridge Apr 21 · Oct 24
- Moriches Apr 18 · Oct 28
- Coram Apr 4 · Nov 7
Frequently asked questions
When is the last frost in Yaphank, NY?
The median last spring frost in Yaphank, NY is April 18. There is still about a 10% chance of frost after May 1, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Yaphank, NY?
The median first fall frost is October 28, with about a 10% chance of frost before October 13.
How long is the growing season in Yaphank, NY?
About 193 days between the median last spring frost and first fall frost.
What planting zone is Yaphank, NY?
Yaphank, NY is in USDA hardiness zone 7a.