Frost dates for 10475 — Bronx, NY
Last spring frostApr 1median date
First fall frostNov 16median date
Growing season229 daysfrost-free
Hardiness zone7bZone 7b
How Bronx compares
- In 8 years out of 10, the last spring frost in Bronx falls between March 19 and April 12, a 24-day window. The first fall frost falls between November 2 and December 4.
- The median last frost is 32 days earlier than the New York median of May 3.
- Its 229-day growing season is among the longest of the 1,610 New York places with a regular frost season.
- The last frost is 4 days earlier than the zone 7b median of Apr 5. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7b chart.
- The weather station records an average of 67 nights a year at or below 32°F.
- Bronx shares its weather station with Mount Vernon, NY, 4 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 19 |
| 50% (median) | April 1 |
| 10% (safe for tender plants) | April 12 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 2 |
| 50% (median) | November 16 |
| 90% (late) | December 4 |
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 Bronx, NY
Frost dates for 10475 — Bronx, NY — last frost Apr 1, first frost Nov 16, zone 7b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 7 to Jan 21Transplant outside: Mar 4 to Mar 18
Start indoors: Jan 21 to Feb 4Transplant outside: Apr 15 to Apr 29
Start indoors: Jan 21 to Feb 4Transplant outside: Apr 15 to Apr 29
Start indoors: Feb 4 to Feb 18Transplant outside: Apr 8 to Apr 22
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 11 to Mar 25Sow outdoors: Mar 4 to Apr 8Plant for fall: Sep 21 to Oct 19
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 4 to Mar 18Sow outdoors: Mar 4 to Mar 18Plant for fall: Sep 7 to Sep 28
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 18 to Apr 1Plant for fall: Aug 10 to Aug 31
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 11 to Mar 25Plant for fall: Aug 10 to Aug 31
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 18 to Apr 1Plant for fall: Aug 10 to Aug 31
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 22 to May 6Sow outdoors: Apr 22 to May 6
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 8 to Apr 22
Sow outdoors: Feb 18 to Mar 11Plant for fall: Aug 24 to Sep 14
Sow outdoors: Feb 18 to Mar 11Plant for fall: Sep 21 to Oct 12
Sow outdoors: Feb 25 to Apr 8Plant for fall: Oct 5 to Oct 26
Start indoors: Mar 4 to Mar 11Transplant outside: Apr 15 to Apr 22Sow outdoors: Apr 8 to Apr 22Plant for fall: Aug 31 to Sep 14
Start indoors: Mar 4 to Mar 11Sow outdoors: Apr 8 to Apr 22Plant for fall: Sep 7 to Sep 21
Start indoors: Mar 4 to Mar 11Sow outdoors: Apr 8 to Apr 22
Start indoors: Mar 4 to Mar 11Transplant outside: Apr 15 to Apr 29
Sow outdoors: Mar 11 to Apr 8Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 11 to Apr 8Plant for fall: Sep 7 to Sep 21
Sow outdoors: Mar 11 to Apr 1
Sow outdoors: Mar 18 to Apr 15Plant for fall: Sep 7 to Sep 21
Sow outdoors: Mar 18 to Apr 8Plant for fall: Sep 21 to Oct 12
Sow outdoors: Apr 8 to Apr 29Plant for fall: Aug 31 to Sep 14
Sow outdoors: Apr 8 to Apr 22
Transplant outside: Apr 15 to May 6
Plant for fall: Nov 2 to Dec 7
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Bronx, NY
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 7 – Jan 21 | Mar 4 – Mar 18 | — | — |
| Peppers | Jan 21 – Feb 4 | Apr 15 – Apr 29 | — | — |
| Eggplant | Jan 21 – Feb 4 | Apr 15 – Apr 29 | — | — |
| Tomatoes | Feb 4 – Feb 18 | Apr 8 – Apr 22 | — | — |
| Lettuce | Feb 4 – Feb 18 | Mar 11 – Mar 25 | Mar 4 – Apr 8 | Sep 21 – Oct 19 |
| Kale | Feb 4 – Feb 18 | Mar 4 – Mar 18 | Mar 4 – Mar 18 | Sep 7 – Sep 28 |
| Broccoli | Feb 4 – Feb 18 | Mar 18 – Apr 1 | — | Aug 10 – Aug 31 |
| Cabbage | Feb 4 – Feb 18 | Mar 11 – Mar 25 | — | Aug 10 – Aug 31 |
| Cauliflower | Feb 4 – Feb 18 | Mar 18 – Apr 1 | — | Aug 10 – Aug 31 |
| Okra | Feb 18 – Mar 4 | Apr 22 – May 6 | Apr 22 – May 6 | — |
| Basil | Feb 18 – Mar 4 | Apr 8 – Apr 22 | — | — |
| Peas | — | — | Feb 18 – Mar 11 | Aug 24 – Sep 14 |
| Spinach | — | — | Feb 18 – Mar 11 | Sep 21 – Oct 12 |
| Radishes | — | — | Feb 25 – Apr 8 | Oct 5 – Oct 26 |
| Cucumbers | Mar 4 – Mar 11 | Apr 15 – Apr 22 | Apr 8 – Apr 22 | Aug 31 – Sep 14 |
| Zucchini & Summer Squash | Mar 4 – Mar 11 | — | Apr 8 – Apr 22 | Sep 7 – Sep 21 |
| Winter Squash & Pumpkins | Mar 4 – Mar 11 | — | Apr 8 – Apr 22 | — |
| Melons & Watermelon | Mar 4 – Mar 11 | Apr 15 – Apr 29 | — | — |
| Carrots | — | — | Mar 11 – Apr 8 | Aug 24 – Sep 7 |
| Beets | — | — | Mar 11 – Apr 8 | Sep 7 – Sep 21 |
| Potatoes | — | — | Mar 11 – Apr 1 | — |
| Swiss Chard | — | — | Mar 18 – Apr 15 | Sep 7 – Sep 21 |
| Cilantro | — | — | Mar 18 – Apr 8 | Sep 21 – Oct 12 |
| Green Beans | — | — | Apr 8 – Apr 29 | Aug 31 – Sep 14 |
| Sweet Corn | — | — | Apr 8 – Apr 22 | — |
| Sweet Potatoes | — | Apr 15 – May 6 | — | — |
| Garlic | — | — | — | Nov 2 – Dec 7 |
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 Bronx, NY weather station, 4 km away (elevation 39 ft (12 m)).
ZIP codes in Bronx: 10451 10452 10453 10454 10455 10456 10457 10458 10459 10460 10461 10462 10463 10464 10465 10466 10467 10468 10469 10470 10471 10472 10473 10474 10475
Frost dates near Bronx
- Pelham Apr 1 · Nov 16
- Mount Vernon Apr 1 · Nov 16
- New Rochelle Apr 20 · Oct 26
- Bronxville Apr 20 · Oct 26
- Yonkers Apr 20 · Oct 26
- Larchmont Apr 20 · Oct 26
- Eastchester Apr 20 · Oct 26
- Tuckahoe Apr 20 · Oct 26
Frequently asked questions
When is the last frost in Bronx, NY?
The median last spring frost in Bronx, NY is April 1. There is still about a 10% chance of frost after April 12, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Bronx, NY?
The median first fall frost is November 16, with about a 10% chance of frost before November 2.
How long is the growing season in Bronx, NY?
About 229 days between the median last spring frost and first fall frost.
What planting zone is Bronx, NY?
Bronx, NY is in USDA hardiness zone 7b.