Irvington, NJ frost dates
Last spring frostApr 2median date
First fall frostNov 10median date
Growing season222 daysfrost-free
Hardiness zone7aZone 7a
How Irvington compares
- In 8 years out of 10, the last spring frost in Irvington falls between March 20 and April 15, a 26-day window. The first fall frost falls between October 28 and November 25.
- The median last frost is 14 days earlier than the New Jersey median of Apr 16.
- Its 222-day growing season is longer than 91% of the 582 New Jersey places with a regular frost season (state median 194 days).
- The last frost is 14 days earlier than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 80 nights a year at or below 32°F.
- Compared with Newark, NJ, 4 km away, the last frost here is 2 days earlier than there and the growing season is 6 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 20 |
| 50% (median) | April 2 |
| 10% (safe for tender plants) | April 15 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 28 |
| 50% (median) | November 10 |
| 90% (late) | November 25 |
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 Irvington, NJ
Irvington, NJ frost dates — last frost Apr 2, first frost Nov 10, zone 7a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 8 to Jan 22Transplant outside: Mar 5 to Mar 19
Start indoors: Jan 22 to Feb 5Transplant outside: Apr 16 to Apr 30
Start indoors: Jan 22 to Feb 5Transplant outside: Apr 16 to Apr 30
Start indoors: Feb 5 to Feb 19Transplant outside: Apr 9 to Apr 23
Start indoors: Feb 5 to Feb 19Transplant outside: Mar 12 to Mar 26Sow outdoors: Mar 5 to Apr 9Plant for fall: Sep 15 to Oct 13
Start indoors: Feb 5 to Feb 19Transplant outside: Mar 5 to Mar 19Sow outdoors: Mar 5 to Mar 19Plant for fall: Sep 1 to Sep 22
Start indoors: Feb 5 to Feb 19Transplant outside: Mar 19 to Apr 2Plant for fall: Aug 4 to Aug 25
Start indoors: Feb 5 to Feb 19Transplant outside: Mar 12 to Mar 26Plant for fall: Aug 4 to Aug 25
Start indoors: Feb 5 to Feb 19Transplant outside: Mar 19 to Apr 2Plant for fall: Aug 4 to Aug 25
Start indoors: Feb 19 to Mar 5Transplant outside: Apr 23 to May 7Sow outdoors: Apr 23 to May 7
Start indoors: Feb 19 to Mar 5Transplant outside: Apr 9 to Apr 23
Sow outdoors: Feb 19 to Mar 12Plant for fall: Aug 18 to Sep 8
Sow outdoors: Feb 19 to Mar 12Plant for fall: Sep 15 to Oct 6
Sow outdoors: Feb 26 to Apr 9Plant for fall: Sep 29 to Oct 20
Start indoors: Mar 5 to Mar 12Transplant outside: Apr 16 to Apr 23Sow outdoors: Apr 9 to Apr 23Plant for fall: Aug 25 to Sep 8
Start indoors: Mar 5 to Mar 12Sow outdoors: Apr 9 to Apr 23Plant for fall: Sep 1 to Sep 15
Start indoors: Mar 5 to Mar 12Sow outdoors: Apr 9 to Apr 23
Start indoors: Mar 5 to Mar 12Transplant outside: Apr 16 to Apr 30
Sow outdoors: Mar 12 to Apr 9Plant for fall: Aug 18 to Sep 1
Sow outdoors: Mar 12 to Apr 9Plant for fall: Sep 1 to Sep 15
Sow outdoors: Mar 12 to Apr 2
Sow outdoors: Mar 19 to Apr 16Plant for fall: Sep 1 to Sep 15
Sow outdoors: Mar 19 to Apr 9Plant for fall: Sep 15 to Oct 6
Sow outdoors: Apr 9 to Apr 30Plant for fall: Aug 25 to Sep 8
Sow outdoors: Apr 9 to Apr 23
Transplant outside: Apr 16 to May 7
Plant for fall: Oct 27 to Dec 1
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Irvington, NJ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 8 – Jan 22 | Mar 5 – Mar 19 | — | — |
| Peppers | Jan 22 – Feb 5 | Apr 16 – Apr 30 | — | — |
| Eggplant | Jan 22 – Feb 5 | Apr 16 – Apr 30 | — | — |
| Tomatoes | Feb 5 – Feb 19 | Apr 9 – Apr 23 | — | — |
| Lettuce | Feb 5 – Feb 19 | Mar 12 – Mar 26 | Mar 5 – Apr 9 | Sep 15 – Oct 13 |
| Kale | Feb 5 – Feb 19 | Mar 5 – Mar 19 | Mar 5 – Mar 19 | Sep 1 – Sep 22 |
| Broccoli | Feb 5 – Feb 19 | Mar 19 – Apr 2 | — | Aug 4 – Aug 25 |
| Cabbage | Feb 5 – Feb 19 | Mar 12 – Mar 26 | — | Aug 4 – Aug 25 |
| Cauliflower | Feb 5 – Feb 19 | Mar 19 – Apr 2 | — | Aug 4 – Aug 25 |
| Okra | Feb 19 – Mar 5 | Apr 23 – May 7 | Apr 23 – May 7 | — |
| Basil | Feb 19 – Mar 5 | Apr 9 – Apr 23 | — | — |
| Peas | — | — | Feb 19 – Mar 12 | Aug 18 – Sep 8 |
| Spinach | — | — | Feb 19 – Mar 12 | Sep 15 – Oct 6 |
| Radishes | — | — | Feb 26 – Apr 9 | Sep 29 – Oct 20 |
| Cucumbers | Mar 5 – Mar 12 | Apr 16 – Apr 23 | Apr 9 – Apr 23 | Aug 25 – Sep 8 |
| Zucchini & Summer Squash | Mar 5 – Mar 12 | — | Apr 9 – Apr 23 | Sep 1 – Sep 15 |
| Winter Squash & Pumpkins | Mar 5 – Mar 12 | — | Apr 9 – Apr 23 | — |
| Melons & Watermelon | Mar 5 – Mar 12 | Apr 16 – Apr 30 | — | — |
| Carrots | — | — | Mar 12 – Apr 9 | Aug 18 – Sep 1 |
| Beets | — | — | Mar 12 – Apr 9 | Sep 1 – Sep 15 |
| Potatoes | — | — | Mar 12 – Apr 2 | — |
| Swiss Chard | — | — | Mar 19 – Apr 16 | Sep 1 – Sep 15 |
| Cilantro | — | — | Mar 19 – Apr 9 | Sep 15 – Oct 6 |
| Green Beans | — | — | Apr 9 – Apr 30 | Aug 25 – Sep 8 |
| Sweet Corn | — | — | Apr 9 – Apr 23 | — |
| Sweet Potatoes | — | Apr 16 – May 7 | — | — |
| Garlic | — | — | — | Oct 27 – Dec 1 |
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 Newark Intl Ap, NJ weather station, 7 km away (elevation 7 ft (2 m)).
Frost dates near Irvington
- Maplewood Apr 18 · Oct 27
- South Orange Apr 18 · Oct 27
- Hillside Apr 2 · Nov 10
- Newark Apr 4 · Nov 6
- Vauxhall Apr 18 · Oct 27
- East Orange Apr 4 · Nov 6
- Union Apr 11 · Oct 31
- Millburn Apr 18 · Oct 27
- Orange Apr 18 · Oct 24
- Elizabeth Apr 2 · Nov 10
Frequently asked questions
When is the last frost in Irvington, NJ?
The median last spring frost in Irvington, NJ is April 2. There is still about a 10% chance of frost after April 15, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Irvington, NJ?
The median first fall frost is November 10, with about a 10% chance of frost before October 28.
How long is the growing season in Irvington, NJ?
About 222 days between the median last spring frost and first fall frost.
What planting zone is Irvington, NJ?
Irvington, NJ is in USDA hardiness zone 7a.