Frost dates for 16360Townville, PA
The average last spring frost in Townville is May 12 and the average first fall frost is October 10, giving a typical growing season of about 149 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 12
- Average first fall frost
- Oct 10
- Growing season
- 149 days
Safer after May 28 (1-in-10 risk)
Possible by Sep 25 (1-in-10 risk)
Last frost typically in 190 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) | May 10 · May 25 · Jun 7 | Sep 14 · Sep 29 · Oct 11 | 124 days | 100% |
| Frost / freeze (32°F) | Apr 29 · May 12 · May 28 | Sep 25 · Oct 10 · Oct 23 | 149 days | 100% |
| Hard freeze (28°F) | Apr 17 · May 1 · May 19 | Oct 4 · Oct 21 · Nov 5 | 172 days | 100% |
Planting calendar for Townville
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 | Apr 11 – Jun 17 |
| Tomatoes | Transplant outdoors | May 28 – Jun 20 |
| Peppers | Start seeds indoors | Apr 11 – May 12 |
| Peppers | Transplant outdoors | Jun 11 – Jul 12 |
| Eggplant | Start seeds indoors | Apr 28 – May 27 |
| Eggplant | Transplant outdoors | Jun 11 – Jul 12 |
| Cucumbers | Sow outdoors | Jun 11 – Jun 30 |
| Summer squash | Sow outdoors | May 28 – Jul 12 |
| Winter squash & pumpkins | Sow outdoors | Jun 11 – Jul 12 |
| Snap beans | Sow outdoors | May 28 – Jul 23 |
| Sweet corn | Sow outdoors | May 28 – Jun 20 |
| Watermelon & cantaloupe | Sow outdoors | Jun 11 – Jul 12 |
| Okra | Sow outdoors | Jun 4 – Jun 27 |
| Peas | Sow outdoors (spring) | Apr 11 – May 27 |
| Potatoes | Plant outdoors (spring) | Apr 11 – Jun 11 |
| Onions | Start seeds indoors (spring) | Feb 28 – Mar 27 |
| Onions | Transplant outdoors (spring) | Apr 28 – May 27 |
| Broccoli | Start seeds indoors (spring) | Mar 24 – Apr 27 |
| Broccoli | Transplant outdoors (spring) | Apr 28 – May 27 |
| Broccoli | Start seeds indoors (fall) | Jun 10 – Jun 20 |
| Broccoli | Transplant outdoors (fall) | Jul 10 – Jul 21 |
| Cabbage | Start seeds indoors (spring) | Mar 14 – Apr 11 |
| Cabbage | Transplant outdoors (spring) | Apr 11 – May 12 |
| Cabbage | Start seeds indoors (fall) | May 31 – Jun 30 |
| Cabbage | Transplant outdoors (fall) | Jun 30 – Jul 31 |
| Leaf lettuce | Sow outdoors (spring) | Apr 11 – Jun 27 |
| Leaf lettuce | Sow outdoors (fall) | Jun 30 – Aug 16 |
| Spinach | Sow outdoors (spring) | Apr 4 – May 18 |
| Spinach | Sow outdoors (fall) | Jul 17 – Aug 21 |
| Radishes | Sow outdoors (spring) | Apr 11 – Jun 1 |
| Radishes | Sow outdoors (fall) | Jun 30 – Aug 31 |
| Kale | Sow outdoors (spring) | Apr 28 – May 18 |
| Kale | Sow outdoors (fall) | Jun 23 – Jul 31 |
| Carrots | Sow outdoors (spring) | May 12 – Jun 27 |
| Carrots | Sow outdoors (fall) | May 31 – Jul 16 |
| Garlic | Plant outdoors (fall) | Sep 30 – Oct 31 |
Where these dates come from
ZIP code 16360 is matched to the NOAA station Titusville Wtr Wks, PA, 16.4 km away, at 1,220 ft elevation (204 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Titusville Wtr Wks, PA (used) | 1,220 ft | May 12 | Oct 10 |
| Union City Filtration Plant, PA | 1,400 ft | May 7 | Oct 10 |
| Port Meadville Ap, PA | 1,400 ft | Apr 30 | Oct 23 |
| Franklin, PA | 1,015 ft | May 2 | Oct 23 |
Frost dates near Townville
- Centerville, PA 16404 · last May 12, first Oct 10
- Guys Mills, PA 16327 · last Apr 30, first Oct 23
- Riceville, PA 16432 · last May 12, first Oct 10
- Hydetown, PA 16328 · last May 12, first Oct 10
- Titusville, PA 16354 · last May 12, first Oct 10
- Spartansburg, PA 16434 · last May 12, first Oct 10
- Cambridge Springs, PA 16403 · last Apr 30, first Oct 23
- Venango, PA 16440 · last Apr 30, first Oct 23
Frequently asked questions
- When is the last frost in Townville, PA?
- For ZIP code 16360, the average last spring frost (32°F) is May 12, based on NOAA 1991-2020 climate normals for the Titusville Wtr Wks, PA weather station. There is a 1-in-10 chance of a frost after May 28.
- When is the first frost in Townville, PA?
- The average first fall frost (32°F) is October 10. There is a 1-in-10 chance of frost by September 25, so tender plants are at risk from that point on.
- How long is the growing season in 16360?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 149 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.