Henagar, AL frost dates
How Henagar compares
- In 8 years out of 10, the last spring frost in Henagar falls between March 20 and April 25, a 36-day window. The first fall frost falls between October 18 and November 12.
- The median last frost is 15 days later than the Alabama median of Mar 23.
- Its 206-day growing season is among the shortest of the 574 Alabama places with a regular frost season.
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 78 nights a year at or below 32°F.
- Compared with Chattanooga, TN, 62 km away, the last frost here is 7 days later than there and the growing season is 14 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 20 |
| 50% (median) | April 7 |
| 10% (safe for tender plants) | April 25 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 18 |
| 50% (median) | October 30 |
| 90% (late) | November 12 |
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 Henagar, AL
Henagar, AL frost dates — last frost Apr 7, first frost Oct 30, zone 7b. whenisthelastfrost.com
When to plant vegetables in Henagar, AL
| 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 4 – Oct 2 |
| Kale | Feb 10 – Feb 24 | Mar 10 – Mar 24 | Mar 10 – Mar 24 | Aug 21 – Sep 11 |
| Broccoli | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 24 – Aug 14 |
| Cabbage | Feb 10 – Feb 24 | Mar 17 – Mar 31 | — | Jul 24 – Aug 14 |
| Cauliflower | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 24 – Aug 14 |
| 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 7 – Aug 28 |
| Spinach | — | — | Feb 24 – Mar 17 | Sep 4 – Sep 25 |
| Radishes | — | — | Mar 3 – Apr 14 | Sep 18 – Oct 9 |
| Cucumbers | Mar 10 – Mar 17 | Apr 21 – Apr 28 | Apr 14 – Apr 28 | Aug 14 – Aug 28 |
| Zucchini & Summer Squash | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | Aug 21 – Sep 4 |
| 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 7 – Aug 21 |
| Beets | — | — | Mar 17 – Apr 14 | Aug 21 – Sep 4 |
| Potatoes | — | — | Mar 17 – Apr 7 | — |
| Swiss Chard | — | — | Mar 24 – Apr 21 | Aug 21 – Sep 4 |
| Cilantro | — | — | Mar 24 – Apr 14 | Sep 4 – Sep 25 |
| Green Beans | — | — | Apr 14 – May 5 | Aug 14 – Aug 28 |
| Sweet Corn | — | — | Apr 14 – Apr 28 | — |
| Sweet Potatoes | — | Apr 21 – May 12 | — | — |
| Garlic | — | — | — | Oct 16 – Nov 20 |
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 Valley Head 1 Ssw, AL weather station, 12 km away (elevation 1,020 ft (311 m)).
Frost dates near Henagar
- Sylvania Mar 29 · Nov 8
- Valley Head Apr 7 · Oct 30
- Pisgah Apr 2 · Oct 30
- Mentone Apr 8 · Oct 29
- Ider Apr 8 · Oct 29
- Dutton Apr 2 · Oct 30
- Rainsville Mar 29 · Nov 8
- Fort Payne Mar 29 · Nov 8
- Flat Rock Apr 7 · Oct 31
- Hollywood Apr 2 · Oct 30
Frequently asked questions
When is the last frost in Henagar, AL?
The median last spring frost in Henagar, AL is April 7. There is still about a 10% chance of frost after April 25, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Henagar, AL?
The median first fall frost is October 30, with about a 10% chance of frost before October 18.
How long is the growing season in Henagar, AL?
About 206 days between the median last spring frost and first fall frost.
What planting zone is Henagar, AL?
Henagar, AL is in USDA hardiness zone 7b.