Frost dates for 35956Boaz, AL
The average last spring frost in Boaz is April 1 and the average first fall frost is October 31, giving a typical growing season of about 212 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 1
- Average first fall frost
- Oct 31
- Growing season
- 212 days
Safer after Apr 20 (1-in-10 risk)
Possible by Oct 19 (1-in-10 risk)
Last frost typically in 149 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 29 · Apr 15 · May 4 | Oct 10 · Oct 22 · Nov 5 | 189 days | 100% |
| Frost / freeze (32°F) | Mar 13 · Apr 1 · Apr 20 | Oct 19 · Oct 31 · Nov 14 | 212 days | 100% |
| Hard freeze (28°F) | Feb 25 · Mar 17 · Apr 6 | Oct 28 · Nov 9 · Dec 1 | 237 days | 100% |
Planting calendar for Boaz
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 | Mar 1 – May 7 |
| Tomatoes | Transplant outdoors | Apr 17 – Jul 11 |
| Peppers | Start seeds indoors | Mar 1 – Apr 1 |
| Peppers | Transplant outdoors | May 1 – Jun 1 |
| Eggplant | Start seeds indoors | Mar 18 – Apr 16 |
| Eggplant | Transplant outdoors | May 1 – Jun 1 |
| Cucumbers | Sow outdoors | May 1 – Jul 21 |
| Summer squash | Sow outdoors | Apr 17 – Jun 1 |
| Winter squash & pumpkins | Sow outdoors | May 1 – Jun 1 |
| Snap beans | Sow outdoors | Apr 17 – Aug 13 |
| Sweet corn | Sow outdoors | Apr 17 – Jul 11 |
| Watermelon & cantaloupe | Sow outdoors | May 1 – Jun 1 |
| Okra | Sow outdoors | Apr 24 – May 17 |
| Peas | Sow outdoors (spring) | Mar 1 – Apr 16 |
| Potatoes | Plant outdoors (spring) | Mar 1 – May 1 |
| Onions | Start seeds indoors (spring) | Jan 18 – Feb 14 |
| Onions | Transplant outdoors (spring) | Mar 18 – Apr 16 |
| Broccoli | Start seeds indoors (spring) | Feb 11 – Mar 17 |
| Broccoli | Transplant outdoors (spring) | Mar 18 – Apr 16 |
| Broccoli | Start seeds indoors (fall) | Jul 1 – Jul 11 |
| Broccoli | Transplant outdoors (fall) | Jul 31 – Aug 11 |
| Cabbage | Start seeds indoors (spring) | Feb 1 – Mar 1 |
| Cabbage | Transplant outdoors (spring) | Mar 1 – Apr 1 |
| Cabbage | Start seeds indoors (fall) | Jun 21 – Jul 21 |
| Cabbage | Transplant outdoors (fall) | Jul 21 – Aug 21 |
| Leaf lettuce | Sow outdoors (spring) | Mar 1 – May 17 |
| Leaf lettuce | Sow outdoors (fall) | Jul 21 – Sep 6 |
| Spinach | Sow outdoors (spring) | Feb 22 – Apr 7 |
| Spinach | Sow outdoors (fall) | Aug 7 – Sep 11 |
| Radishes | Sow outdoors (spring) | Mar 1 – Apr 21 |
| Radishes | Sow outdoors (fall) | Jul 21 – Sep 21 |
| Kale | Sow outdoors (spring) | Mar 18 – Apr 7 |
| Kale | Sow outdoors (fall) | Jul 14 – Aug 21 |
| Carrots | Sow outdoors (spring) | Apr 1 – May 17 |
| Carrots | Sow outdoors (fall) | Jun 21 – Aug 6 |
| Garlic | Plant outdoors (fall) | Oct 21 – Nov 21 |
Where these dates come from
ZIP code 35956 is matched to the NOAA station Gadsden 19 N, AL, 23.2 km away, at 1,152 ft elevation (220 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Gadsden 19 N, AL (used) | 1,152 ft | Apr 1 | Oct 31 |
| Gadsden, AL | 565 ft | Mar 19 | Nov 13 |
| Sand Mt Substn, AL | 1,190 ft | Mar 31 | Nov 3 |
| Guntersville, AL | 578 ft | Mar 19 | Nov 18 |
Frost dates near Boaz
- Boaz, AL 35957 · last Apr 1, first Oct 31
- Altoona, AL 35952 · last Mar 26, first Nov 10
- Attalla, AL 35954 · last Mar 19, first Nov 13
- Albertville, AL 35950 · last Apr 1, first Oct 31
- Gadsden, AL 35904 · last Mar 19, first Nov 13
- Horton, AL 35980 · last Mar 17, first Nov 19
- Douglas, AL 35964 · last Mar 26, first Nov 10
- Crossville, AL 35962 · last Apr 1, first Oct 31
Frequently asked questions
- When is the last frost in Boaz, AL?
- For ZIP code 35956, the average last spring frost (32°F) is April 1, based on NOAA 1991-2020 climate normals for the Gadsden 19 N, AL weather station. There is a 1-in-10 chance of a frost after April 20.
- When is the first frost in Boaz, AL?
- The average first fall frost (32°F) is October 31. There is a 1-in-10 chance of frost by October 19, so tender plants are at risk from that point on.
- How long is the growing season in 35956?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 212 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.