Frost dates for 07006 — Caldwell, NJ
Last spring frostApr 14median date
First fall frostOct 28median date
Growing season197 daysfrost-free
Hardiness zone7aZone 7a
How Caldwell compares
- In 8 years out of 10, the last spring frost in Caldwell falls between April 1 and April 30, a 29-day window. The first fall frost falls between October 13 and November 11.
- The median last frost is 2 days earlier than the New Jersey median of Apr 16.
- Its 197-day growing season is longer than 57% of the 582 New Jersey places with a regular frost season (state median 194 days).
- The last frost is typical for zone 7a, where the median is Apr 16.
- The weather station records an average of 108 nights a year at or below 32°F.
- Compared with Clifton, NJ, 10 km away, the last frost here is 1 day earlier than there and the growing season is 1 day longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 1 |
| 50% (median) | April 14 |
| 10% (safe for tender plants) | April 30 |
| 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 Caldwell, NJ
Frost dates for 07006 — Caldwell, NJ — last frost Apr 14, first frost Oct 28, zone 7a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 20 to Feb 3Transplant outside: Mar 17 to Mar 31
Start indoors: Feb 3 to Feb 17Transplant outside: Apr 28 to May 12
Start indoors: Feb 3 to Feb 17Transplant outside: Apr 28 to May 12
Start indoors: Feb 17 to Mar 3Transplant outside: Apr 21 to May 5
Start indoors: Feb 17 to Mar 3Transplant outside: Mar 24 to Apr 7Sow outdoors: Mar 17 to Apr 21Plant for fall: Sep 2 to Sep 30
Start indoors: Feb 17 to Mar 3Transplant outside: Mar 17 to Mar 31Sow outdoors: Mar 17 to Mar 31Plant for fall: Aug 19 to Sep 9
Start indoors: Feb 17 to Mar 3Transplant outside: Mar 31 to Apr 14Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 17 to Mar 3Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 17 to Mar 3Transplant outside: Mar 31 to Apr 14Plant for fall: Jul 22 to Aug 12
Start indoors: Mar 3 to Mar 17Transplant outside: May 5 to May 19Sow outdoors: May 5 to May 19
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 21 to May 5
Sow outdoors: Mar 3 to Mar 24Plant for fall: Aug 5 to Aug 26
Sow outdoors: Mar 3 to Mar 24Plant for fall: Sep 2 to Sep 23
Sow outdoors: Mar 10 to Apr 21Plant for fall: Sep 16 to Oct 7
Start indoors: Mar 17 to Mar 24Transplant outside: Apr 28 to May 5Sow outdoors: Apr 21 to May 5Plant for fall: Aug 12 to Aug 26
Start indoors: Mar 17 to Mar 24Sow outdoors: Apr 21 to May 5Plant for fall: Aug 19 to Sep 2
Start indoors: Mar 17 to Mar 24Sow outdoors: Apr 21 to May 5
Start indoors: Mar 17 to Mar 24Transplant outside: Apr 28 to May 12
Sow outdoors: Mar 24 to Apr 21Plant for fall: Aug 5 to Aug 19
Sow outdoors: Mar 24 to Apr 21Plant for fall: Aug 19 to Sep 2
Sow outdoors: Mar 24 to Apr 14
Sow outdoors: Mar 31 to Apr 28Plant for fall: Aug 19 to Sep 2
Sow outdoors: Mar 31 to Apr 21Plant for fall: Sep 2 to Sep 23
Sow outdoors: Apr 21 to May 12Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 21 to May 5
Transplant outside: Apr 28 to May 19
Plant for fall: Oct 14 to Nov 18
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Caldwell, NJ
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 20 – Feb 3 | Mar 17 – Mar 31 | — | — |
| Peppers | Feb 3 – Feb 17 | Apr 28 – May 12 | — | — |
| Eggplant | Feb 3 – Feb 17 | Apr 28 – May 12 | — | — |
| Tomatoes | Feb 17 – Mar 3 | Apr 21 – May 5 | — | — |
| Lettuce | Feb 17 – Mar 3 | Mar 24 – Apr 7 | Mar 17 – Apr 21 | Sep 2 – Sep 30 |
| Kale | Feb 17 – Mar 3 | Mar 17 – Mar 31 | Mar 17 – Mar 31 | Aug 19 – Sep 9 |
| Broccoli | Feb 17 – Mar 3 | Mar 31 – Apr 14 | — | Jul 22 – Aug 12 |
| Cabbage | Feb 17 – Mar 3 | Mar 24 – Apr 7 | — | Jul 22 – Aug 12 |
| Cauliflower | Feb 17 – Mar 3 | Mar 31 – Apr 14 | — | Jul 22 – Aug 12 |
| Okra | Mar 3 – Mar 17 | May 5 – May 19 | May 5 – May 19 | — |
| Basil | Mar 3 – Mar 17 | Apr 21 – May 5 | — | — |
| Peas | — | — | Mar 3 – Mar 24 | Aug 5 – Aug 26 |
| Spinach | — | — | Mar 3 – Mar 24 | Sep 2 – Sep 23 |
| Radishes | — | — | Mar 10 – Apr 21 | Sep 16 – Oct 7 |
| Cucumbers | Mar 17 – Mar 24 | Apr 28 – May 5 | Apr 21 – May 5 | Aug 12 – Aug 26 |
| Zucchini & Summer Squash | Mar 17 – Mar 24 | — | Apr 21 – May 5 | Aug 19 – Sep 2 |
| Winter Squash & Pumpkins | Mar 17 – Mar 24 | — | Apr 21 – May 5 | — |
| Melons & Watermelon | Mar 17 – Mar 24 | Apr 28 – May 12 | — | — |
| Carrots | — | — | Mar 24 – Apr 21 | Aug 5 – Aug 19 |
| Beets | — | — | Mar 24 – Apr 21 | Aug 19 – Sep 2 |
| Potatoes | — | — | Mar 24 – Apr 14 | — |
| Swiss Chard | — | — | Mar 31 – Apr 28 | Aug 19 – Sep 2 |
| Cilantro | — | — | Mar 31 – Apr 21 | Sep 2 – Sep 23 |
| Green Beans | — | — | Apr 21 – May 12 | Aug 12 – Aug 26 |
| Sweet Corn | — | — | Apr 21 – May 5 | — |
| Sweet Potatoes | — | Apr 28 – May 19 | — | — |
| 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 Caldwell Essex Co Ap, NJ weather station, 2 km away (elevation 174 ft (53 m)).
ZIP codes in Caldwell: 07006 07007
Frost dates near Caldwell
- Essex Fells Apr 18 · Oct 24
- Fairfield Apr 14 · Oct 28
- Verona Apr 18 · Oct 24
- Cedar Grove Apr 15 · Oct 28
- Roseland Apr 18 · Oct 24
- Little Falls Apr 15 · Oct 28
- Pine Brook Apr 17 · Oct 23
- Montclair Apr 18 · Oct 24
Frequently asked questions
When is the last frost in Caldwell, NJ?
The median last spring frost in Caldwell, NJ is April 14. There is still about a 10% chance of frost after April 30, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Caldwell, NJ?
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 Caldwell, NJ?
About 197 days between the median last spring frost and first fall frost.
What planting zone is Caldwell, NJ?
Caldwell, NJ is in USDA hardiness zone 7a.