Hillsboro, AL frost dates
Last spring frostMar 28median date
First fall frostNov 3median date
Growing season220 daysfrost-free
Hardiness zone8aZone 8a
How Hillsboro compares
- In 8 years out of 10, the last spring frost in Hillsboro falls between March 8 and April 13, a 36-day window. The first fall frost falls between October 22 and November 18.
- The median last frost is 5 days later than the Alabama median of Mar 23.
- Its 220-day growing season is longer than 28% of the 574 Alabama places with a regular frost season (state median 231 days).
- The last frost is typical for zone 8a, where the median is Mar 29.
- The weather station records an average of 64 nights a year at or below 32°F.
- Compared with Decatur, AL, 19 km away, the last frost here is 2 days later than there and the growing season is 6 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 8 |
| 50% (median) | March 28 |
| 10% (safe for tender plants) | April 13 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 22 |
| 50% (median) | November 3 |
| 90% (late) | November 18 |
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 Hillsboro, AL
Hillsboro, AL frost dates — last frost Mar 28, first frost Nov 3, zone 8a. whenisthelastfrost.com
Crop
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Start indoors: Jan 3 to Jan 17Transplant outside: Feb 28 to Mar 14
Start indoors: Jan 17 to Jan 31Transplant outside: Apr 11 to Apr 25
Start indoors: Jan 17 to Jan 31Transplant outside: Apr 11 to Apr 25
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 4 to Apr 18
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 7 to Mar 21Sow outdoors: Feb 28 to Apr 4Plant for fall: Sep 8 to Oct 6
Start indoors: Jan 31 to Feb 14Transplant outside: Feb 28 to Mar 14Sow outdoors: Feb 28 to Mar 14Plant for fall: Aug 25 to Sep 15
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 14 to Mar 28Plant for fall: Jul 28 to Aug 18
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 7 to Mar 21Plant for fall: Jul 28 to Aug 18
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 14 to Mar 28Plant for fall: Jul 28 to Aug 18
Start indoors: Feb 14 to Feb 28Transplant outside: Apr 18 to May 2Sow outdoors: Apr 18 to May 2
Start indoors: Feb 14 to Feb 28Transplant outside: Apr 4 to Apr 18
Sow outdoors: Feb 14 to Mar 7Plant for fall: Aug 11 to Sep 1
Sow outdoors: Feb 14 to Mar 7Plant for fall: Sep 8 to Sep 29
Sow outdoors: Feb 21 to Apr 4Plant for fall: Sep 22 to Oct 13
Start indoors: Feb 28 to Mar 7Transplant outside: Apr 11 to Apr 18Sow outdoors: Apr 4 to Apr 18Plant for fall: Aug 18 to Sep 1
Start indoors: Feb 28 to Mar 7Sow outdoors: Apr 4 to Apr 18Plant for fall: Aug 25 to Sep 8
Start indoors: Feb 28 to Mar 7Sow outdoors: Apr 4 to Apr 18
Start indoors: Feb 28 to Mar 7Transplant outside: Apr 11 to Apr 25
Sow outdoors: Mar 7 to Apr 4Plant for fall: Aug 11 to Aug 25
Sow outdoors: Mar 7 to Apr 4Plant for fall: Aug 25 to Sep 8
Sow outdoors: Mar 7 to Mar 28
Sow outdoors: Mar 14 to Apr 11Plant for fall: Aug 25 to Sep 8
Sow outdoors: Mar 14 to Apr 4Plant for fall: Sep 8 to Sep 29
Sow outdoors: Apr 4 to Apr 25Plant for fall: Aug 18 to Sep 1
Sow outdoors: Apr 4 to Apr 18
Transplant outside: Apr 11 to May 2
Plant for fall: Oct 20 to Nov 24
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Hillsboro, AL
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 3 – Jan 17 | Feb 28 – Mar 14 | — | — |
| Peppers | Jan 17 – Jan 31 | Apr 11 – Apr 25 | — | — |
| Eggplant | Jan 17 – Jan 31 | Apr 11 – Apr 25 | — | — |
| Tomatoes | Jan 31 – Feb 14 | Apr 4 – Apr 18 | — | — |
| Lettuce | Jan 31 – Feb 14 | Mar 7 – Mar 21 | Feb 28 – Apr 4 | Sep 8 – Oct 6 |
| Kale | Jan 31 – Feb 14 | Feb 28 – Mar 14 | Feb 28 – Mar 14 | Aug 25 – Sep 15 |
| Broccoli | Jan 31 – Feb 14 | Mar 14 – Mar 28 | — | Jul 28 – Aug 18 |
| Cabbage | Jan 31 – Feb 14 | Mar 7 – Mar 21 | — | Jul 28 – Aug 18 |
| Cauliflower | Jan 31 – Feb 14 | Mar 14 – Mar 28 | — | Jul 28 – Aug 18 |
| Okra | Feb 14 – Feb 28 | Apr 18 – May 2 | Apr 18 – May 2 | — |
| Basil | Feb 14 – Feb 28 | Apr 4 – Apr 18 | — | — |
| Peas | — | — | Feb 14 – Mar 7 | Aug 11 – Sep 1 |
| Spinach | — | — | Feb 14 – Mar 7 | Sep 8 – Sep 29 |
| Radishes | — | — | Feb 21 – Apr 4 | Sep 22 – Oct 13 |
| Cucumbers | Feb 28 – Mar 7 | Apr 11 – Apr 18 | Apr 4 – Apr 18 | Aug 18 – Sep 1 |
| Zucchini & Summer Squash | Feb 28 – Mar 7 | — | Apr 4 – Apr 18 | Aug 25 – Sep 8 |
| Winter Squash & Pumpkins | Feb 28 – Mar 7 | — | Apr 4 – Apr 18 | — |
| Melons & Watermelon | Feb 28 – Mar 7 | Apr 11 – Apr 25 | — | — |
| Carrots | — | — | Mar 7 – Apr 4 | Aug 11 – Aug 25 |
| Beets | — | — | Mar 7 – Apr 4 | Aug 25 – Sep 8 |
| Potatoes | — | — | Mar 7 – Mar 28 | — |
| Swiss Chard | — | — | Mar 14 – Apr 11 | Aug 25 – Sep 8 |
| Cilantro | — | — | Mar 14 – Apr 4 | Sep 8 – Sep 29 |
| Green Beans | — | — | Apr 4 – Apr 25 | Aug 18 – Sep 1 |
| Sweet Corn | — | — | Apr 4 – Apr 18 | — |
| Sweet Potatoes | — | Apr 11 – May 2 | — | — |
| Garlic | — | — | — | Oct 20 – Nov 24 |
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 Courtland 2 Wsw, AL weather station, 15 km away (elevation 574 ft (175 m)).
Frost dates near Hillsboro
- Trinity Mar 26 · Nov 7
- Courtland Mar 28 · Nov 3
- Moulton Apr 2 · Oct 31
- Decatur Mar 26 · Nov 7
- Tanner Mar 27 · Nov 3
- Town Creek Mar 28 · Nov 3
- Athens Mar 20 · Nov 12
- Rogersville Mar 29 · Nov 4
- Belle Mina Mar 31 · Nov 1
- Mooresville Mar 31 · Nov 1
Frequently asked questions
When is the last frost in Hillsboro, AL?
The median last spring frost in Hillsboro, AL is March 28. There is still about a 10% chance of frost after April 13, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Hillsboro, AL?
The median first fall frost is November 3, with about a 10% chance of frost before October 22.
How long is the growing season in Hillsboro, AL?
About 220 days between the median last spring frost and first fall frost.
What planting zone is Hillsboro, AL?
Hillsboro, AL is in USDA hardiness zone 8a.