Frost dates for 16151Sheakleyville, PA
The average last spring frost in Sheakleyville is April 30 and the average first fall frost is October 23, giving a typical growing season of about 175 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 30
- Average first fall frost
- Oct 23
- Growing season
- 175 days
Safer after May 18 (1-in-10 risk)
Possible by Oct 6 (1-in-10 risk)
Last frost typically in 178 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 26 · May 11 · May 26 | Sep 28 · Oct 9 · Oct 23 | 151 days | 100% |
| Frost / freeze (32°F) | Apr 16 · Apr 30 · May 18 | Oct 6 · Oct 23 · Nov 7 | 175 days | 100% |
| Hard freeze (28°F) | Apr 2 · Apr 18 · May 5 | Oct 20 · Nov 4 · Nov 20 | 200 days | 100% |
Planting calendar for Sheakleyville
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 30 – Jun 5 |
| Tomatoes | Transplant outdoors | May 16 – Jul 3 |
| Peppers | Start seeds indoors | Mar 30 – Apr 30 |
| Peppers | Transplant outdoors | May 30 – Jun 30 |
| Eggplant | Start seeds indoors | Apr 16 – May 15 |
| Eggplant | Transplant outdoors | May 30 – Jun 30 |
| Cucumbers | Sow outdoors | May 30 – Jul 13 |
| Summer squash | Sow outdoors | May 16 – Jun 30 |
| Winter squash & pumpkins | Sow outdoors | May 30 – Jun 30 |
| Snap beans | Sow outdoors | May 16 – Aug 5 |
| Sweet corn | Sow outdoors | May 16 – Jul 3 |
| Watermelon & cantaloupe | Sow outdoors | May 30 – Jun 30 |
| Okra | Sow outdoors | May 23 – Jun 15 |
| Peas | Sow outdoors (spring) | Mar 30 – May 15 |
| Potatoes | Plant outdoors (spring) | Mar 30 – May 30 |
| Onions | Start seeds indoors (spring) | Feb 16 – Mar 15 |
| Onions | Transplant outdoors (spring) | Apr 16 – May 15 |
| Broccoli | Start seeds indoors (spring) | Mar 12 – Apr 15 |
| Broccoli | Transplant outdoors (spring) | Apr 16 – May 15 |
| Broccoli | Start seeds indoors (fall) | Jun 23 – Jul 3 |
| Broccoli | Transplant outdoors (fall) | Jul 23 – Aug 3 |
| Cabbage | Start seeds indoors (spring) | Mar 2 – Mar 30 |
| Cabbage | Transplant outdoors (spring) | Mar 30 – Apr 30 |
| Cabbage | Start seeds indoors (fall) | Jun 13 – Jul 13 |
| Cabbage | Transplant outdoors (fall) | Jul 13 – Aug 13 |
| Leaf lettuce | Sow outdoors (spring) | Mar 30 – Jun 15 |
| Leaf lettuce | Sow outdoors (fall) | Jul 13 – Aug 29 |
| Spinach | Sow outdoors (spring) | Mar 23 – May 6 |
| Spinach | Sow outdoors (fall) | Jul 30 – Sep 3 |
| Radishes | Sow outdoors (spring) | Mar 30 – May 20 |
| Radishes | Sow outdoors (fall) | Jul 13 – Sep 13 |
| Kale | Sow outdoors (spring) | Apr 16 – May 6 |
| Kale | Sow outdoors (fall) | Jul 6 – Aug 13 |
| Carrots | Sow outdoors (spring) | Apr 30 – Jun 15 |
| Carrots | Sow outdoors (fall) | Jun 13 – Jul 29 |
| Garlic | Plant outdoors (fall) | Oct 13 – Nov 13 |
Where these dates come from
ZIP code 16151 is matched to the NOAA station Port Meadville Ap, PA, 20.4 km away, at 1,400 ft elevation (124 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Port Meadville Ap, PA (used) | 1,400 ft | Apr 30 | Oct 23 |
| Jamestown 2 Nw, PA | 1,040 ft | May 4 | Oct 14 |
| Mercer, PA | 1,220 ft | May 15 | Oct 3 |
| Linesville 1 S, PA | 1,030 ft | Apr 30 | Oct 23 |
Frost dates near Sheakleyville
- Hadley, PA 16130 · last Apr 30, first Oct 23
- Clarks Mills, PA 16114 · last May 15, first Oct 3
- Atlantic, PA 16111 · last Apr 30, first Oct 23
- Stoneboro, PA 16153 · last May 15, first Oct 3
- Fredonia, PA 16124 · last May 15, first Oct 3
- Greenville, PA 16125 · last May 4, first Oct 14
- Cochranton, PA 16314 · last May 2, first Oct 23
- Adamsville, PA 16110 · last May 4, first Oct 14
Frequently asked questions
- When is the last frost in Sheakleyville, PA?
- For ZIP code 16151, the average last spring frost (32°F) is April 30, based on NOAA 1991-2020 climate normals for the Port Meadville Ap, PA weather station. There is a 1-in-10 chance of a frost after May 18.
- When is the first frost in Sheakleyville, PA?
- The average first fall frost (32°F) is October 23. There is a 1-in-10 chance of frost by October 6, so tender plants are at risk from that point on.
- How long is the growing season in 16151?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 175 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.