Frost dates for 36916Pennington, AL
The average last spring frost in Pennington is March 16 and the average first fall frost is November 14, giving a typical growing season of about 241 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 16
- Average first fall frost
- Nov 14
- Growing season
- 241 days
Safer after Apr 3 (1-in-10 risk)
Possible by Oct 31 (1-in-10 risk)
First frost typically in 11 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Mar 11 · Mar 29 · Apr 14 | Oct 20 · Nov 3 · Nov 19 | 219 days | 100% |
| Frost / freeze (32°F) | Feb 26 · Mar 16 · Apr 3 | Oct 31 · Nov 14 · Dec 1 | 241 days | 100% |
| Hard freeze (28°F) | Feb 9 · Mar 2 · Mar 19 | Nov 9 · Nov 26 · Dec 21 | 270 days | 100% |
Planting calendar for Pennington
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Feb 13 – Apr 21 |
| Tomatoes | Transplant outdoors | Apr 1 – Jul 25 |
| Peppers | Start seeds indoors | Feb 13 – Mar 16 |
| Peppers | Transplant outdoors | Apr 15 – May 16 |
| Eggplant | Start seeds indoors | Mar 2 – Mar 31 |
| Eggplant | Transplant outdoors | Apr 15 – May 16 |
| Cucumbers | Sow outdoors | Apr 15 – Aug 4 |
| Summer squash | Sow outdoors | Apr 1 – May 16 |
| Winter squash & pumpkins | Sow outdoors | Apr 15 – May 16 |
| Snap beans | Sow outdoors | Apr 1 – Aug 27 |
| Sweet corn | Sow outdoors | Apr 1 – Jul 25 |
| Watermelon & cantaloupe | Sow outdoors | Apr 15 – May 16 |
| Okra | Sow outdoors | Apr 8 – May 1 |
| Peas | Sow outdoors (spring) | Feb 13 – Mar 31 |
| Potatoes | Plant outdoors (spring) | Feb 13 – Apr 15 |
| Onions | Start seeds indoors (spring) | Jan 2 – Jan 29 |
| Onions | Transplant outdoors (spring) | Mar 2 – Mar 31 |
| Broccoli | Start seeds indoors (spring) | Jan 26 – Mar 1 |
| Broccoli | Transplant outdoors (spring) | Mar 2 – Mar 31 |
| Broccoli | Start seeds indoors (fall) | Jul 15 – Jul 25 |
| Broccoli | Transplant outdoors (fall) | Aug 14 – Aug 25 |
| Cabbage | Start seeds indoors (spring) | Jan 16 – Feb 13 |
| Cabbage | Transplant outdoors (spring) | Feb 13 – Mar 16 |
| Cabbage | Start seeds indoors (fall) | Jul 5 – Aug 4 |
| Cabbage | Transplant outdoors (fall) | Aug 4 – Sep 4 |
| Leaf lettuce | Sow outdoors (spring) | Feb 13 – May 1 |
| Leaf lettuce | Sow outdoors (fall) | Aug 4 – Sep 20 |
| Spinach | Sow outdoors (spring) | Feb 6 – Mar 22 |
| Spinach | Sow outdoors (fall) | Aug 21 – Sep 25 |
| Radishes | Sow outdoors (spring) | Feb 13 – Apr 5 |
| Radishes | Sow outdoors (fall) | Aug 4 – Oct 5 |
| Kale | Sow outdoors (spring) | Mar 2 – Mar 22 |
| Kale | Sow outdoors (fall) | Jul 28 – Sep 4 |
| Carrots | Sow outdoors (spring) | Mar 16 – May 1 |
| Carrots | Sow outdoors (fall) | Jul 5 – Aug 20 |
| Garlic | Plant outdoors (fall) | Nov 4 – Dec 5 |
Where these dates come from
ZIP code 36916 is matched to the NOAA station Demopolis L&D, AL, 37.9 km away, at 100 ft elevation (5 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Demopolis L&D, AL (used) | 100 ft | Mar 16 | Nov 14 |
| Livingston, AL | 128 ft | Mar 20 | Nov 9 |
| Thomasville, AL | 390 ft | Mar 10 | Nov 21 |
| Thomasville 2 S, AL | 350 ft | Mar 17 | Nov 9 |
Frost dates near Pennington
- Myrtlewood, AL 36763 · last Mar 16, first Nov 14
- Jachin, AL 36910 · last Mar 20, first Nov 9
- Nanafalia, AL 36764 · last Mar 10, first Nov 21
- Ward, AL 36922 · last Mar 20, first Nov 9
- Sweet Water, AL 36782 · last Mar 10, first Nov 21
- Butler, AL 36904 · last Mar 14, first Nov 16
- Lisman, AL 36912 · last Mar 18, first Nov 10
- Linden, AL 36748 · last Mar 16, first Nov 14
Frequently asked questions
- When is the last frost in Pennington, AL?
- For ZIP code 36916, the average last spring frost (32°F) is March 16, based on NOAA 1991-2020 climate normals for the Demopolis L&D, AL weather station. There is a 1-in-10 chance of a frost after April 3.
- When is the first frost in Pennington, AL?
- The average first fall frost (32°F) is November 14. There is a 1-in-10 chance of frost by October 31, so tender plants are at risk from that point on.
- How long is the growing season in 36916?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 241 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.