Frost dates for 38578Pleasant Hill, TN
The average last spring frost in Pleasant Hill is April 20 and the average first fall frost is October 20, giving a typical growing season of about 185 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 20
- Average first fall frost
- Oct 20
- Growing season
- 185 days
Safer after May 9 (1-in-10 risk)
Possible by Oct 8 (1-in-10 risk)
Last frost typically in 168 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 15 · May 2 · May 18 | Oct 1 · Oct 12 · Oct 24 | 164 days | 100% |
| Frost / freeze (32°F) | Apr 2 · Apr 20 · May 9 | Oct 8 · Oct 20 · Nov 1 | 185 days | 100% |
| Hard freeze (28°F) | Mar 17 · Apr 4 · Apr 24 | Oct 15 · Oct 30 · Nov 13 | 209 days | 100% |
Planting calendar for Pleasant Hill
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 20 – May 26 |
| Tomatoes | Transplant outdoors | May 6 – Jun 30 |
| Peppers | Start seeds indoors | Mar 20 – Apr 20 |
| Peppers | Transplant outdoors | May 20 – Jun 20 |
| Eggplant | Start seeds indoors | Apr 6 – May 5 |
| Eggplant | Transplant outdoors | May 20 – Jun 20 |
| Cucumbers | Sow outdoors | May 20 – Jul 10 |
| Summer squash | Sow outdoors | May 6 – Jun 20 |
| Winter squash & pumpkins | Sow outdoors | May 20 – Jun 20 |
| Snap beans | Sow outdoors | May 6 – Aug 2 |
| Sweet corn | Sow outdoors | May 6 – Jun 30 |
| Watermelon & cantaloupe | Sow outdoors | May 20 – Jun 20 |
| Okra | Sow outdoors | May 13 – Jun 5 |
| Peas | Sow outdoors (spring) | Mar 20 – May 5 |
| Potatoes | Plant outdoors (spring) | Mar 20 – May 20 |
| Onions | Start seeds indoors (spring) | Feb 6 – Mar 5 |
| Onions | Transplant outdoors (spring) | Apr 6 – May 5 |
| Broccoli | Start seeds indoors (spring) | Mar 2 – Apr 5 |
| Broccoli | Transplant outdoors (spring) | Apr 6 – May 5 |
| Broccoli | Start seeds indoors (fall) | Jun 20 – Jun 30 |
| Broccoli | Transplant outdoors (fall) | Jul 20 – Jul 31 |
| Cabbage | Start seeds indoors (spring) | Feb 20 – Mar 20 |
| Cabbage | Transplant outdoors (spring) | Mar 20 – Apr 20 |
| Cabbage | Start seeds indoors (fall) | Jun 10 – Jul 10 |
| Cabbage | Transplant outdoors (fall) | Jul 10 – Aug 10 |
| Leaf lettuce | Sow outdoors (spring) | Mar 20 – Jun 5 |
| Leaf lettuce | Sow outdoors (fall) | Jul 10 – Aug 26 |
| Spinach | Sow outdoors (spring) | Mar 13 – Apr 26 |
| Spinach | Sow outdoors (fall) | Jul 27 – Aug 31 |
| Radishes | Sow outdoors (spring) | Mar 20 – May 10 |
| Radishes | Sow outdoors (fall) | Jul 10 – Sep 10 |
| Kale | Sow outdoors (spring) | Apr 6 – Apr 26 |
| Kale | Sow outdoors (fall) | Jul 3 – Aug 10 |
| Carrots | Sow outdoors (spring) | Apr 20 – Jun 5 |
| Carrots | Sow outdoors (fall) | Jun 10 – Jul 26 |
| Garlic | Plant outdoors (fall) | Oct 10 – Nov 10 |
Where these dates come from
ZIP code 38578 is matched to the NOAA station Crossville 7 Nw, TN, 6.8 km away, at 1,913 ft elevation (7 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Crossville 7 Nw, TN (used) | 1,913 ft | Apr 20 | Oct 20 |
| Crossville Ed & Research, TN | 1,810 ft | Apr 19 | Oct 22 |
| Crossville Mem Ap, TN | 1,867 ft | Apr 16 | Oct 23 |
| Monterey, TN | 1,860 ft | Apr 10 | Oct 30 |
Frost dates near Pleasant Hill
- Crossville, TN 38555 · last Apr 16, first Oct 23
- Monterey, TN 38574 · last Apr 10, first Oct 30
- Sparta, TN 38583 · last Apr 15, first Oct 23
- Crawford, TN 38554 · last Apr 10, first Oct 30
- Cookeville, TN 38506 · last Apr 14, first Oct 25
- Clarkrange, TN 38553 · last Apr 19, first Oct 22
- Doyle, TN 38559 · last Apr 15, first Oct 23
- Crab Orchard, TN 37723 · last Apr 16, first Oct 23
Frequently asked questions
- When is the last frost in Pleasant Hill, TN?
- For ZIP code 38578, the average last spring frost (32°F) is April 20, based on NOAA 1991-2020 climate normals for the Crossville 7 Nw, TN weather station. There is a 1-in-10 chance of a frost after May 9.
- When is the first frost in Pleasant Hill, TN?
- The average first fall frost (32°F) is October 20. 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 38578?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 185 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.