Knotts Island, NC frost dates
Last spring frostMar 23median date
First fall frostNov 18median date
Growing season240 daysfrost-free
Hardiness zone8bZone 8b
How Knotts Island compares
- In 8 years out of 10, the last spring frost in Knotts Island falls between March 5 and April 7, a 33-day window. The first fall frost falls between November 4 and December 7.
- The median last frost is 9 days earlier than the North Carolina median of Apr 1.
- Its 240-day growing season is longer than 93% of the 759 North Carolina places with a regular frost season (state median 218 days).
- The last frost is 7 days later than the zone 8b median of Mar 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8b chart.
- The weather station records an average of 52 nights a year at or below 32°F.
- Compared with Virginia Beach, VA, 33 km away, the last frost here is 6 days earlier than there and the growing season is 12 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 5 |
| 50% (median) | March 23 |
| 10% (safe for tender plants) | April 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 4 |
| 50% (median) | November 18 |
| 90% (late) | December 7 |
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 Knotts Island, NC
Knotts Island, NC frost dates — last frost Mar 23, first frost Nov 18, zone 8b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 29 to Jan 12Start indoors: Dec 29 to Jan 12Transplant outside: Feb 23 to Mar 9
Start indoors: Jan 12 to Jan 26Transplant outside: Apr 6 to Apr 20
Start indoors: Jan 12 to Jan 26Transplant outside: Apr 6 to Apr 20
Start indoors: Jan 26 to Feb 9Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 26 to Feb 9Transplant outside: Mar 2 to Mar 16Sow outdoors: Feb 23 to Mar 30Plant for fall: Sep 23 to Oct 21
Start indoors: Jan 26 to Feb 9Transplant outside: Feb 23 to Mar 9Sow outdoors: Feb 23 to Mar 9Plant for fall: Sep 9 to Sep 30
Start indoors: Jan 26 to Feb 9Transplant outside: Mar 9 to Mar 23Plant for fall: Aug 12 to Sep 2
Start indoors: Jan 26 to Feb 9Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 12 to Sep 2
Start indoors: Jan 26 to Feb 9Transplant outside: Mar 9 to Mar 23Plant for fall: Aug 12 to Sep 2
Start indoors: Feb 9 to Feb 23Transplant outside: Apr 13 to Apr 27Sow outdoors: Apr 13 to Apr 27
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 30 to Apr 13
Sow outdoors: Feb 9 to Mar 2Plant for fall: Aug 26 to Sep 16
Sow outdoors: Feb 9 to Mar 2Plant for fall: Sep 23 to Oct 14
Sow outdoors: Feb 16 to Mar 30Plant for fall: Oct 7 to Oct 28
Start indoors: Feb 23 to Mar 2Transplant outside: Apr 6 to Apr 13Sow outdoors: Mar 30 to Apr 13Plant for fall: Sep 2 to Sep 16
Start indoors: Feb 23 to Mar 2Sow outdoors: Mar 30 to Apr 13Plant for fall: Sep 9 to Sep 23
Start indoors: Feb 23 to Mar 2Sow outdoors: Mar 30 to Apr 13
Start indoors: Feb 23 to Mar 2Transplant outside: Apr 6 to Apr 20
Sow outdoors: Mar 2 to Mar 30Plant for fall: Aug 26 to Sep 9
Sow outdoors: Mar 2 to Mar 30Plant for fall: Sep 9 to Sep 23
Sow outdoors: Mar 2 to Mar 23
Sow outdoors: Mar 9 to Apr 6Plant for fall: Sep 9 to Sep 23
Sow outdoors: Mar 9 to Mar 30Plant for fall: Sep 23 to Oct 14
Sow outdoors: Mar 30 to Apr 20Plant for fall: Sep 2 to Sep 16
Sow outdoors: Mar 30 to Apr 13
Transplant outside: Apr 6 to Apr 27
Plant for fall: Nov 4 to Dec 9
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Knotts Island, NC
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 29 – Jan 12 | Feb 23 – Mar 9 | — | — |
| Peppers | Jan 12 – Jan 26 | Apr 6 – Apr 20 | — | — |
| Eggplant | Jan 12 – Jan 26 | Apr 6 – Apr 20 | — | — |
| Tomatoes | Jan 26 – Feb 9 | Mar 30 – Apr 13 | — | — |
| Lettuce | Jan 26 – Feb 9 | Mar 2 – Mar 16 | Feb 23 – Mar 30 | Sep 23 – Oct 21 |
| Kale | Jan 26 – Feb 9 | Feb 23 – Mar 9 | Feb 23 – Mar 9 | Sep 9 – Sep 30 |
| Broccoli | Jan 26 – Feb 9 | Mar 9 – Mar 23 | — | Aug 12 – Sep 2 |
| Cabbage | Jan 26 – Feb 9 | Mar 2 – Mar 16 | — | Aug 12 – Sep 2 |
| Cauliflower | Jan 26 – Feb 9 | Mar 9 – Mar 23 | — | Aug 12 – Sep 2 |
| Okra | Feb 9 – Feb 23 | Apr 13 – Apr 27 | Apr 13 – Apr 27 | — |
| Basil | Feb 9 – Feb 23 | Mar 30 – Apr 13 | — | — |
| Peas | — | — | Feb 9 – Mar 2 | Aug 26 – Sep 16 |
| Spinach | — | — | Feb 9 – Mar 2 | Sep 23 – Oct 14 |
| Radishes | — | — | Feb 16 – Mar 30 | Oct 7 – Oct 28 |
| Cucumbers | Feb 23 – Mar 2 | Apr 6 – Apr 13 | Mar 30 – Apr 13 | Sep 2 – Sep 16 |
| Zucchini & Summer Squash | Feb 23 – Mar 2 | — | Mar 30 – Apr 13 | Sep 9 – Sep 23 |
| Winter Squash & Pumpkins | Feb 23 – Mar 2 | — | Mar 30 – Apr 13 | — |
| Melons & Watermelon | Feb 23 – Mar 2 | Apr 6 – Apr 20 | — | — |
| Carrots | — | — | Mar 2 – Mar 30 | Aug 26 – Sep 9 |
| Beets | — | — | Mar 2 – Mar 30 | Sep 9 – Sep 23 |
| Potatoes | — | — | Mar 2 – Mar 23 | — |
| Swiss Chard | — | — | Mar 9 – Apr 6 | Sep 9 – Sep 23 |
| Cilantro | — | — | Mar 9 – Mar 30 | Sep 23 – Oct 14 |
| Green Beans | — | — | Mar 30 – Apr 20 | Sep 2 – Sep 16 |
| Sweet Corn | — | — | Mar 30 – Apr 13 | — |
| Sweet Potatoes | — | Apr 6 – Apr 27 | — | — |
| Garlic | — | — | — | Nov 4 – Dec 9 |
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 Fentress Naas, VA weather station, 24 km away (elevation 16 ft (5 m)).
Frost dates near Knotts Island
- Currituck Mar 27 · Nov 17
- Moyock Mar 27 · Nov 17
- Maple Mar 27 · Nov 17
- Coinjock Mar 28 · Nov 12
- Barco Mar 28 · Nov 12
- Shawboro Mar 27 · Nov 17
- Aydlett Mar 28 · Nov 12
- Corolla Mar 28 · Nov 12
- Camden Mar 27 · Nov 17
- Poplar Branch Mar 28 · Nov 12
Frequently asked questions
When is the last frost in Knotts Island, NC?
The median last spring frost in Knotts Island, NC is March 23. There is still about a 10% chance of frost after April 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Knotts Island, NC?
The median first fall frost is November 18, with about a 10% chance of frost before November 4.
How long is the growing season in Knotts Island, NC?
About 240 days between the median last spring frost and first fall frost.
What planting zone is Knotts Island, NC?
Knotts Island, NC is in USDA hardiness zone 8b.