Frost dates for 37867Shawanee, TN
The average last spring frost in Shawanee is April 23 and the average first fall frost is October 19, giving a typical growing season of about 177 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 23
- Average first fall frost
- Oct 19
- Growing season
- 177 days
Safer after May 11 (1-in-10 risk)
Possible by Oct 8 (1-in-10 risk)
Last frost typically in 171 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 20 · May 5 · May 20 | Oct 1 · Oct 11 · Oct 23 | 158 days | 100% |
| Frost / freeze (32°F) | Apr 9 · Apr 23 · May 11 | Oct 8 · Oct 19 · Nov 1 | 177 days | 100% |
| Hard freeze (28°F) | Mar 26 · Apr 10 · Apr 26 | Oct 15 · Oct 28 · Nov 8 | 199 days | 100% |
Planting calendar for Shawanee
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 23 – May 29 |
| Tomatoes | Transplant outdoors | May 9 – Jun 29 |
| Peppers | Start seeds indoors | Mar 23 – Apr 23 |
| Peppers | Transplant outdoors | May 23 – Jun 23 |
| Eggplant | Start seeds indoors | Apr 9 – May 8 |
| Eggplant | Transplant outdoors | May 23 – Jun 23 |
| Cucumbers | Sow outdoors | May 23 – Jul 9 |
| Summer squash | Sow outdoors | May 9 – Jun 23 |
| Winter squash & pumpkins | Sow outdoors | May 23 – Jun 23 |
| Snap beans | Sow outdoors | May 9 – Aug 1 |
| Sweet corn | Sow outdoors | May 9 – Jun 29 |
| Watermelon & cantaloupe | Sow outdoors | May 23 – Jun 23 |
| Okra | Sow outdoors | May 16 – Jun 8 |
| Peas | Sow outdoors (spring) | Mar 23 – May 8 |
| Potatoes | Plant outdoors (spring) | Mar 23 – May 23 |
| Onions | Start seeds indoors (spring) | Feb 9 – Mar 8 |
| Onions | Transplant outdoors (spring) | Apr 9 – May 8 |
| Broccoli | Start seeds indoors (spring) | Mar 5 – Apr 8 |
| Broccoli | Transplant outdoors (spring) | Apr 9 – May 8 |
| Broccoli | Start seeds indoors (fall) | Jun 19 – Jun 29 |
| Broccoli | Transplant outdoors (fall) | Jul 19 – Jul 30 |
| Cabbage | Start seeds indoors (spring) | Feb 23 – Mar 23 |
| Cabbage | Transplant outdoors (spring) | Mar 23 – Apr 23 |
| Cabbage | Start seeds indoors (fall) | Jun 9 – Jul 9 |
| Cabbage | Transplant outdoors (fall) | Jul 9 – Aug 9 |
| Leaf lettuce | Sow outdoors (spring) | Mar 23 – Jun 8 |
| Leaf lettuce | Sow outdoors (fall) | Jul 9 – Aug 25 |
| Spinach | Sow outdoors (spring) | Mar 16 – Apr 29 |
| Spinach | Sow outdoors (fall) | Jul 26 – Aug 30 |
| Radishes | Sow outdoors (spring) | Mar 23 – May 13 |
| Radishes | Sow outdoors (fall) | Jul 9 – Sep 9 |
| Kale | Sow outdoors (spring) | Apr 9 – Apr 29 |
| Kale | Sow outdoors (fall) | Jul 2 – Aug 9 |
| Carrots | Sow outdoors (spring) | Apr 23 – Jun 8 |
| Carrots | Sow outdoors (fall) | Jun 9 – Jul 25 |
| Garlic | Plant outdoors (fall) | Oct 9 – Nov 9 |
Where these dates come from
ZIP code 37867 is matched to the NOAA station Tazewell, TN, 15 km away, at 1,365 ft elevation (95 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Tazewell, TN (used) | 1,365 ft | Apr 23 | Oct 19 |
| Barbourville, KY | 990 ft | Apr 19 | Oct 24 |
| Baxter, KY | 1,164 ft | Apr 15 | Oct 30 |
| Newcomb, TN | 1,014 ft | Apr 18 | Oct 24 |
Frost dates near Shawanee
- Harrogate, TN 37752 · last Apr 23, first Oct 19
- Arthur, TN 37707 · last Apr 23, first Oct 19
- Cumberland Gap, TN 37724 · last Apr 23, first Oct 19
- Middlesboro, KY 40965 · last Apr 23, first Oct 19
- Ewing, VA 24248 · last Apr 23, first Oct 19
- Tazewell, TN 37879 · last Apr 23, first Oct 19
- New Tazewell, TN 37824 · last Apr 23, first Oct 19
- Calvin, KY 40813 · last Apr 19, first Oct 24
Frequently asked questions
- When is the last frost in Shawanee, TN?
- For ZIP code 37867, the average last spring frost (32°F) is April 23, based on NOAA 1991-2020 climate normals for the Tazewell, TN weather station. There is a 1-in-10 chance of a frost after May 11.
- When is the first frost in Shawanee, TN?
- The average first fall frost (32°F) is October 19. There is a 1-in-10 chance of frost by October 8, so tender plants are at risk from that point on.
- How long is the growing season in 37867?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 177 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.