Frost dates for 37047Cornersville, TN
The average last spring frost in Cornersville is April 14 and the average first fall frost is October 22, giving a typical growing season of about 192 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 14
- Average first fall frost
- Oct 22
- Growing season
- 192 days
Safer after Apr 30 (1-in-10 risk)
Possible by Oct 9 (1-in-10 risk)
Last frost typically in 162 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) | Apr 10 · Apr 26 · May 11 | Oct 1 · Oct 13 · Oct 26 | 170 days | 100% |
| Frost / freeze (32°F) | Mar 31 · Apr 14 · Apr 30 | Oct 9 · Oct 22 · Nov 5 | 192 days | 100% |
| Hard freeze (28°F) | Mar 16 · Apr 3 · Apr 20 | Oct 18 · Nov 2 · Nov 17 | 213 days | 100% |
Planting calendar for Cornersville
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 14 – May 20 |
| Tomatoes | Transplant outdoors | Apr 30 – Jul 2 |
| Peppers | Start seeds indoors | Mar 14 – Apr 14 |
| Peppers | Transplant outdoors | May 14 – Jun 14 |
| Eggplant | Start seeds indoors | Mar 31 – Apr 29 |
| Eggplant | Transplant outdoors | May 14 – Jun 14 |
| Cucumbers | Sow outdoors | May 14 – Jul 12 |
| Summer squash | Sow outdoors | Apr 30 – Jun 14 |
| Winter squash & pumpkins | Sow outdoors | May 14 – Jun 14 |
| Snap beans | Sow outdoors | Apr 30 – Aug 4 |
| Sweet corn | Sow outdoors | Apr 30 – Jul 2 |
| Watermelon & cantaloupe | Sow outdoors | May 14 – Jun 14 |
| Okra | Sow outdoors | May 7 – May 30 |
| Peas | Sow outdoors (spring) | Mar 14 – Apr 29 |
| Potatoes | Plant outdoors (spring) | Mar 14 – May 14 |
| Onions | Start seeds indoors (spring) | Jan 31 – Feb 27 |
| Onions | Transplant outdoors (spring) | Mar 31 – Apr 29 |
| Broccoli | Start seeds indoors (spring) | Feb 24 – Mar 30 |
| Broccoli | Transplant outdoors (spring) | Mar 31 – Apr 29 |
| Broccoli | Start seeds indoors (fall) | Jun 22 – Jul 2 |
| Broccoli | Transplant outdoors (fall) | Jul 22 – Aug 2 |
| Cabbage | Start seeds indoors (spring) | Feb 14 – Mar 14 |
| Cabbage | Transplant outdoors (spring) | Mar 14 – Apr 14 |
| Cabbage | Start seeds indoors (fall) | Jun 12 – Jul 12 |
| Cabbage | Transplant outdoors (fall) | Jul 12 – Aug 12 |
| Leaf lettuce | Sow outdoors (spring) | Mar 14 – May 30 |
| Leaf lettuce | Sow outdoors (fall) | Jul 12 – Aug 28 |
| Spinach | Sow outdoors (spring) | Mar 7 – Apr 20 |
| Spinach | Sow outdoors (fall) | Jul 29 – Sep 2 |
| Radishes | Sow outdoors (spring) | Mar 14 – May 4 |
| Radishes | Sow outdoors (fall) | Jul 12 – Sep 12 |
| Kale | Sow outdoors (spring) | Mar 31 – Apr 20 |
| Kale | Sow outdoors (fall) | Jul 5 – Aug 12 |
| Carrots | Sow outdoors (spring) | Apr 14 – May 30 |
| Carrots | Sow outdoors (fall) | Jun 12 – Jul 28 |
| Garlic | Plant outdoors (fall) | Oct 12 – Nov 12 |
Where these dates come from
ZIP code 37047 is matched to the NOAA station Lewisburg Exp Stn, TN, 8.3 km away, at 787 ft elevation (102 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Lewisburg Exp Stn, TN (used) | 787 ft | Apr 14 | Oct 22 |
| Pulaski Wwtp, TN | 644 ft | Apr 14 | Oct 24 |
| Fayetteville Wtp, TN | 742 ft | Apr 7 | Oct 28 |
| Shelbyville Water Dept, TN | 760 ft | Apr 7 | Oct 29 |
Frost dates near Cornersville
- Belfast, TN 37019 · last Apr 14, first Oct 22
- Lewisburg, TN 37091 · last Apr 14, first Oct 22
- Petersburg, TN 37144 · last Apr 14, first Oct 22
- Frankewing, TN 38459 · last Apr 14, first Oct 24
- Culleoka, TN 38451 · last Apr 14, first Oct 22
- Lynnville, TN 38472 · last Apr 14, first Oct 22
- Pulaski, TN 38478 · last Apr 14, first Oct 24
- Dellrose, TN 38453 · last Apr 14, first Oct 24
Frequently asked questions
- When is the last frost in Cornersville, TN?
- For ZIP code 37047, the average last spring frost (32°F) is April 14, based on NOAA 1991-2020 climate normals for the Lewisburg Exp Stn, TN weather station. There is a 1-in-10 chance of a frost after April 30.
- When is the first frost in Cornersville, TN?
- The average first fall frost (32°F) is October 22. There is a 1-in-10 chance of frost by October 9, so tender plants are at risk from that point on.
- How long is the growing season in 37047?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 192 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.