Glen Alpine, NC frost dates
How Glen Alpine compares
- In 8 years out of 10, the last spring frost in Glen Alpine falls between March 24 and April 26, a 33-day window. The first fall frost falls between October 14 and November 9.
- The median last frost is 6 days later than the North Carolina median of Apr 1.
- Its 204-day growing season is longer than 28% of the 759 North Carolina places with a regular frost season (state median 218 days).
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 91 nights a year at or below 32°F.
- Compared with Asheville, NC, 71 km away, the last frost here is 1 day later than there and the growing season is 4 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 24 |
| 50% (median) | April 7 |
| 10% (safe for tender plants) | April 26 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 14 |
| 50% (median) | October 28 |
| 90% (late) | November 9 |
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 Glen Alpine, NC
Glen Alpine, NC frost dates — last frost Apr 7, first frost Oct 28, zone 7b. whenisthelastfrost.com
When to plant vegetables in Glen Alpine, NC
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 13 – Jan 27 | Mar 10 – Mar 24 | — | — |
| Peppers | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Eggplant | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Tomatoes | Feb 10 – Feb 24 | Apr 14 – Apr 28 | — | — |
| Lettuce | Feb 10 – Feb 24 | Mar 17 – Mar 31 | Mar 10 – Apr 14 | Sep 2 – Sep 30 |
| Kale | Feb 10 – Feb 24 | Mar 10 – Mar 24 | Mar 10 – Mar 24 | Aug 19 – Sep 9 |
| Broccoli | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 22 – Aug 12 |
| Cabbage | Feb 10 – Feb 24 | Mar 17 – Mar 31 | — | Jul 22 – Aug 12 |
| Cauliflower | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 22 – Aug 12 |
| Okra | Feb 24 – Mar 10 | Apr 28 – May 12 | Apr 28 – May 12 | — |
| Basil | Feb 24 – Mar 10 | Apr 14 – Apr 28 | — | — |
| Peas | — | — | Feb 24 – Mar 17 | Aug 5 – Aug 26 |
| Spinach | — | — | Feb 24 – Mar 17 | Sep 2 – Sep 23 |
| Radishes | — | — | Mar 3 – Apr 14 | Sep 16 – Oct 7 |
| Cucumbers | Mar 10 – Mar 17 | Apr 21 – Apr 28 | Apr 14 – Apr 28 | Aug 12 – Aug 26 |
| Zucchini & Summer Squash | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | Aug 19 – Sep 2 |
| Winter Squash & Pumpkins | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | — |
| Melons & Watermelon | Mar 10 – Mar 17 | Apr 21 – May 5 | — | — |
| Carrots | — | — | Mar 17 – Apr 14 | Aug 5 – Aug 19 |
| Beets | — | — | Mar 17 – Apr 14 | Aug 19 – Sep 2 |
| Potatoes | — | — | Mar 17 – Apr 7 | — |
| Swiss Chard | — | — | Mar 24 – Apr 21 | Aug 19 – Sep 2 |
| Cilantro | — | — | Mar 24 – Apr 14 | Sep 2 – Sep 23 |
| Green Beans | — | — | Apr 14 – May 5 | Aug 12 – Aug 26 |
| Sweet Corn | — | — | Apr 14 – Apr 28 | — |
| Sweet Potatoes | — | Apr 21 – May 12 | — | — |
| 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 Morganton, NC weather station, 10 km away (elevation 1,181 ft (360 m)).
Frost dates near Glen Alpine
- Morganton Apr 7 · Oct 28
- Nebo Apr 5 · Nov 1
- Drexel Apr 7 · Oct 28
- Valdese Apr 7 · Oct 28
- Marion Apr 5 · Nov 1
- Rutherford College Mar 31 · Nov 4
- Connelly Springs Mar 31 · Nov 4
- Glenwood Apr 5 · Nov 1
- Casar Apr 12 · Oct 28
- Icard Mar 31 · Nov 4
Frequently asked questions
When is the last frost in Glen Alpine, NC?
The median last spring frost in Glen Alpine, NC is April 7. There is still about a 10% chance of frost after April 26, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Glen Alpine, NC?
The median first fall frost is October 28, with about a 10% chance of frost before October 14.
How long is the growing season in Glen Alpine, NC?
About 204 days between the median last spring frost and first fall frost.
What planting zone is Glen Alpine, NC?
Glen Alpine, NC is in USDA hardiness zone 7b.