Collinsville, AL frost dates
Last spring frostApr 1median date
First fall frostOct 31median date
Growing season213 daysfrost-free
Hardiness zone8aZone 8a
How Collinsville compares
- In 8 years out of 10, the last spring frost in Collinsville falls between March 13 and April 20, a 38-day window. The first fall frost falls between October 19 and November 14.
- The median last frost is 9 days later than the Alabama median of Mar 23.
- Its 213-day growing season is longer than 19% 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 67 nights a year at or below 32°F.
- Compared with Huntsville, AL, 83 km away, the last frost here is 8 days later than there and the growing season is 16 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 13 |
| 50% (median) | April 1 |
| 10% (safe for tender plants) | April 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 19 |
| 50% (median) | October 31 |
| 90% (late) | November 14 |
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 Collinsville, AL
Collinsville, AL frost dates — last frost Apr 1, first frost Oct 31, zone 8a. whenisthelastfrost.com
Crop
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Start indoors: Jan 7 to Jan 21Transplant outside: Mar 4 to Mar 18
Start indoors: Jan 21 to Feb 4Transplant outside: Apr 15 to Apr 29
Start indoors: Jan 21 to Feb 4Transplant outside: Apr 15 to Apr 29
Start indoors: Feb 4 to Feb 18Transplant outside: Apr 8 to Apr 22
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 11 to Mar 25Sow outdoors: Mar 4 to Apr 8Plant for fall: Sep 5 to Oct 3
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 4 to Mar 18Sow outdoors: Mar 4 to Mar 18Plant for fall: Aug 22 to Sep 12
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 18 to Apr 1Plant for fall: Jul 25 to Aug 15
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 11 to Mar 25Plant for fall: Jul 25 to Aug 15
Start indoors: Feb 4 to Feb 18Transplant outside: Mar 18 to Apr 1Plant for fall: Jul 25 to Aug 15
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 22 to May 6Sow outdoors: Apr 22 to May 6
Start indoors: Feb 18 to Mar 4Transplant outside: Apr 8 to Apr 22
Sow outdoors: Feb 18 to Mar 11Plant for fall: Aug 8 to Aug 29
Sow outdoors: Feb 18 to Mar 11Plant for fall: Sep 5 to Sep 26
Sow outdoors: Feb 25 to Apr 8Plant for fall: Sep 19 to Oct 10
Start indoors: Mar 4 to Mar 11Transplant outside: Apr 15 to Apr 22Sow outdoors: Apr 8 to Apr 22Plant for fall: Aug 15 to Aug 29
Start indoors: Mar 4 to Mar 11Sow outdoors: Apr 8 to Apr 22Plant for fall: Aug 22 to Sep 5
Start indoors: Mar 4 to Mar 11Sow outdoors: Apr 8 to Apr 22
Start indoors: Mar 4 to Mar 11Transplant outside: Apr 15 to Apr 29
Sow outdoors: Mar 11 to Apr 8Plant for fall: Aug 8 to Aug 22
Sow outdoors: Mar 11 to Apr 8Plant for fall: Aug 22 to Sep 5
Sow outdoors: Mar 11 to Apr 1
Sow outdoors: Mar 18 to Apr 15Plant for fall: Aug 22 to Sep 5
Sow outdoors: Mar 18 to Apr 8Plant for fall: Sep 5 to Sep 26
Sow outdoors: Apr 8 to Apr 29Plant for fall: Aug 15 to Aug 29
Sow outdoors: Apr 8 to Apr 22
Transplant outside: Apr 15 to May 6
Plant for fall: Oct 17 to Nov 21
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Collinsville, AL
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 7 – Jan 21 | Mar 4 – Mar 18 | — | — |
| Peppers | Jan 21 – Feb 4 | Apr 15 – Apr 29 | — | — |
| Eggplant | Jan 21 – Feb 4 | Apr 15 – Apr 29 | — | — |
| Tomatoes | Feb 4 – Feb 18 | Apr 8 – Apr 22 | — | — |
| Lettuce | Feb 4 – Feb 18 | Mar 11 – Mar 25 | Mar 4 – Apr 8 | Sep 5 – Oct 3 |
| Kale | Feb 4 – Feb 18 | Mar 4 – Mar 18 | Mar 4 – Mar 18 | Aug 22 – Sep 12 |
| Broccoli | Feb 4 – Feb 18 | Mar 18 – Apr 1 | — | Jul 25 – Aug 15 |
| Cabbage | Feb 4 – Feb 18 | Mar 11 – Mar 25 | — | Jul 25 – Aug 15 |
| Cauliflower | Feb 4 – Feb 18 | Mar 18 – Apr 1 | — | Jul 25 – Aug 15 |
| Okra | Feb 18 – Mar 4 | Apr 22 – May 6 | Apr 22 – May 6 | — |
| Basil | Feb 18 – Mar 4 | Apr 8 – Apr 22 | — | — |
| Peas | — | — | Feb 18 – Mar 11 | Aug 8 – Aug 29 |
| Spinach | — | — | Feb 18 – Mar 11 | Sep 5 – Sep 26 |
| Radishes | — | — | Feb 25 – Apr 8 | Sep 19 – Oct 10 |
| Cucumbers | Mar 4 – Mar 11 | Apr 15 – Apr 22 | Apr 8 – Apr 22 | Aug 15 – Aug 29 |
| Zucchini & Summer Squash | Mar 4 – Mar 11 | — | Apr 8 – Apr 22 | Aug 22 – Sep 5 |
| Winter Squash & Pumpkins | Mar 4 – Mar 11 | — | Apr 8 – Apr 22 | — |
| Melons & Watermelon | Mar 4 – Mar 11 | Apr 15 – Apr 29 | — | — |
| Carrots | — | — | Mar 11 – Apr 8 | Aug 8 – Aug 22 |
| Beets | — | — | Mar 11 – Apr 8 | Aug 22 – Sep 5 |
| Potatoes | — | — | Mar 11 – Apr 1 | — |
| Swiss Chard | — | — | Mar 18 – Apr 15 | Aug 22 – Sep 5 |
| Cilantro | — | — | Mar 18 – Apr 8 | Sep 5 – Sep 26 |
| Green Beans | — | — | Apr 8 – Apr 29 | Aug 15 – Aug 29 |
| Sweet Corn | — | — | Apr 8 – Apr 22 | — |
| Sweet Potatoes | — | Apr 15 – May 6 | — | — |
| Garlic | — | — | — | Oct 17 – Nov 21 |
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 Gadsden 19 N, AL weather station, 9 km away (elevation 1,152 ft (351 m)).
Frost dates near Collinsville
- Dawson Mar 31 · Nov 3
- Leesburg Apr 6 · Oct 31
- Crossville Mar 31 · Nov 3
- Geraldine Mar 31 · Nov 3
- Fyffe Mar 31 · Nov 3
- Cedar Bluff Apr 6 · Oct 31
- Fort Payne Mar 29 · Nov 8
- Groveoak Mar 31 · Nov 3
- Rainsville Mar 29 · Nov 8
- Centre Apr 6 · Oct 31
Frequently asked questions
When is the last frost in Collinsville, AL?
The median last spring frost in Collinsville, AL is April 1. There is still about a 10% chance of frost after April 20, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Collinsville, AL?
The median first fall frost is October 31, with about a 10% chance of frost before October 19.
How long is the growing season in Collinsville, AL?
About 213 days between the median last spring frost and first fall frost.
What planting zone is Collinsville, AL?
Collinsville, AL is in USDA hardiness zone 8a.