Atco, NJ frost dates
Last spring frostApr 28median date
First fall frostOct 15median date
Growing season170 daysfrost-free
Hardiness zone7aZone 7a
How Atco compares
- In 8 years out of 10, the last spring frost in Atco falls between April 14 and May 16, a 32-day window. The first fall frost falls between October 3 and October 30.
- The median last frost is 12 days later than the New Jersey median of Apr 16.
- Its 170-day growing season is among the shortest of the 582 New Jersey places with a regular frost season.
- The last frost is 12 days later 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 112 nights a year at or below 32°F.
- Compared with Cherry Hill, NJ, 20 km away, the last frost here is 16 days later than there and the growing season is 33 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 14 |
| 50% (median) | April 28 |
| 10% (safe for tender plants) | May 16 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 3 |
| 50% (median) | October 15 |
| 90% (late) | October 30 |
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 Atco, NJ
Atco, NJ frost dates — last frost Apr 28, first frost Oct 15, zone 7a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Feb 3 to Feb 17Transplant outside: Mar 31 to Apr 14
Start indoors: Feb 17 to Mar 3Transplant outside: May 12 to May 26
Start indoors: Feb 17 to Mar 3Transplant outside: May 12 to May 26
Start indoors: Mar 3 to Mar 17Transplant outside: May 5 to May 19
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 7 to Apr 21Sow outdoors: Mar 31 to May 5Plant for fall: Aug 20 to Sep 17
Start indoors: Mar 3 to Mar 17Transplant outside: Mar 31 to Apr 14Sow outdoors: Mar 31 to Apr 14Plant for fall: Aug 6 to Aug 27
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 14 to Apr 28Plant for fall: Jul 9 to Jul 30
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 7 to Apr 21Plant for fall: Jul 9 to Jul 30
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 14 to Apr 28Plant for fall: Jul 9 to Jul 30
Start indoors: Mar 17 to Mar 31Transplant outside: May 19 to Jun 2Sow outdoors: May 19 to Jun 2
Start indoors: Mar 17 to Mar 31Transplant outside: May 5 to May 19
Sow outdoors: Mar 17 to Apr 7Plant for fall: Jul 23 to Aug 13
Sow outdoors: Mar 17 to Apr 7Plant for fall: Aug 20 to Sep 10
Sow outdoors: Mar 24 to May 5Plant for fall: Sep 3 to Sep 24
Start indoors: Mar 31 to Apr 7Transplant outside: May 12 to May 19Sow outdoors: May 5 to May 19Plant for fall: Jul 30 to Aug 13
Start indoors: Mar 31 to Apr 7Sow outdoors: May 5 to May 19Plant for fall: Aug 6 to Aug 20
Start indoors: Mar 31 to Apr 7Sow outdoors: May 5 to May 19
Start indoors: Mar 31 to Apr 7Transplant outside: May 12 to May 26
Sow outdoors: Apr 7 to May 5Plant for fall: Jul 23 to Aug 6
Sow outdoors: Apr 7 to May 5Plant for fall: Aug 6 to Aug 20
Sow outdoors: Apr 7 to Apr 28
Sow outdoors: Apr 14 to May 12Plant for fall: Aug 6 to Aug 20
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 20 to Sep 10
Sow outdoors: May 5 to May 26Plant for fall: Jul 30 to Aug 13
Sow outdoors: May 5 to May 19
Transplant outside: May 12 to Jun 2
Plant for fall: Oct 1 to Nov 5
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Atco, NJ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 3 – Feb 17 | Mar 31 – Apr 14 | — | — |
| Peppers | Feb 17 – Mar 3 | May 12 – May 26 | — | — |
| Eggplant | Feb 17 – Mar 3 | May 12 – May 26 | — | — |
| Tomatoes | Mar 3 – Mar 17 | May 5 – May 19 | — | — |
| Lettuce | Mar 3 – Mar 17 | Apr 7 – Apr 21 | Mar 31 – May 5 | Aug 20 – Sep 17 |
| Kale | Mar 3 – Mar 17 | Mar 31 – Apr 14 | Mar 31 – Apr 14 | Aug 6 – Aug 27 |
| Broccoli | Mar 3 – Mar 17 | Apr 14 – Apr 28 | — | Jul 9 – Jul 30 |
| Cabbage | Mar 3 – Mar 17 | Apr 7 – Apr 21 | — | Jul 9 – Jul 30 |
| Cauliflower | Mar 3 – Mar 17 | Apr 14 – Apr 28 | — | Jul 9 – Jul 30 |
| Okra | Mar 17 – Mar 31 | May 19 – Jun 2 | May 19 – Jun 2 | — |
| Basil | Mar 17 – Mar 31 | May 5 – May 19 | — | — |
| Peas | — | — | Mar 17 – Apr 7 | Jul 23 – Aug 13 |
| Spinach | — | — | Mar 17 – Apr 7 | Aug 20 – Sep 10 |
| Radishes | — | — | Mar 24 – May 5 | Sep 3 – Sep 24 |
| Cucumbers | Mar 31 – Apr 7 | May 12 – May 19 | May 5 – May 19 | Jul 30 – Aug 13 |
| Zucchini & Summer Squash | Mar 31 – Apr 7 | — | May 5 – May 19 | Aug 6 – Aug 20 |
| Winter Squash & Pumpkins | Mar 31 – Apr 7 | — | May 5 – May 19 | — |
| Melons & Watermelon | Mar 31 – Apr 7 | May 12 – May 26 | — | — |
| Carrots | — | — | Apr 7 – May 5 | Jul 23 – Aug 6 |
| Beets | — | — | Apr 7 – May 5 | Aug 6 – Aug 20 |
| Potatoes | — | — | Apr 7 – Apr 28 | — |
| Swiss Chard | — | — | Apr 14 – May 12 | Aug 6 – Aug 20 |
| Cilantro | — | — | Apr 14 – May 5 | Aug 20 – Sep 10 |
| Green Beans | — | — | May 5 – May 26 | Jul 30 – Aug 13 |
| Sweet Corn | — | — | May 5 – May 19 | — |
| Sweet Potatoes | — | May 12 – Jun 2 | — | — |
| Garlic | — | — | — | Oct 1 – Nov 5 |
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 Indian Mills 2 W, NJ weather station, 9 km away (elevation 102 ft (31 m)).
Frost dates near Atco
- Waterford Works Apr 14 · Oct 27
- Cedar Brook Apr 14 · Oct 27
- Berlin Apr 28 · Oct 15
- West Berlin Apr 28 · Oct 15
- Sicklerville Apr 8 · Nov 1
- Deptford Apr 8 · Nov 1
- Winslow Apr 14 · Oct 27
- Medford Apr 28 · Oct 15
- Gibbsboro Apr 12 · Nov 1
- Clementon Apr 8 · Nov 1
Frequently asked questions
When is the last frost in Atco, NJ?
The median last spring frost in Atco, NJ is April 28. There is still about a 10% chance of frost after May 16, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Atco, NJ?
The median first fall frost is October 15, with about a 10% chance of frost before October 3.
How long is the growing season in Atco, NJ?
About 170 days between the median last spring frost and first fall frost.
What planting zone is Atco, NJ?
Atco, NJ is in USDA hardiness zone 7a.