Frost dates for 16915Coudersport, PA
The average last spring frost in Coudersport is May 14 and the average first fall frost is October 4, giving a typical growing season of about 143 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 14
- Average first fall frost
- Oct 4
- Growing season
- 143 days
Safer after May 30 (1-in-10 risk)
Possible by Sep 21 (1-in-10 risk)
Last frost typically in 192 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 12 · May 29 · Jun 14 | Sep 10 · Sep 24 · Oct 7 | 117 days | 100% |
| Frost / freeze (32°F) | Apr 28 · May 14 · May 30 | Sep 21 · Oct 4 · Oct 19 | 143 days | 100% |
| Hard freeze (28°F) | Apr 18 · May 2 · May 20 | Oct 1 · Oct 17 · Nov 3 | 167 days | 100% |
Planting calendar for Coudersport
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 13 – Jun 19 |
| Tomatoes | Transplant outdoors | May 30 – Jun 14 |
| Peppers | Start seeds indoors | Apr 13 – May 14 |
| Peppers | Transplant outdoors | Jun 13 – Jul 14 |
| Eggplant | Start seeds indoors | Apr 30 – May 29 |
| Eggplant | Transplant outdoors | Jun 13 – Jul 14 |
| Cucumbers | Sow outdoors | Jun 13 – Jun 24 |
| Summer squash | Sow outdoors | May 30 – Jul 14 |
| Winter squash & pumpkins | Sow outdoors | Jun 13 – Jul 14 |
| Snap beans | Sow outdoors | May 30 – Jul 17 |
| Sweet corn | Sow outdoors | May 30 – Jun 14 |
| Watermelon & cantaloupe | Sow outdoors | Jun 13 – Jul 14 |
| Okra | Sow outdoors | Jun 6 – Jun 29 |
| Peas | Sow outdoors (spring) | Apr 13 – May 29 |
| Potatoes | Plant outdoors (spring) | Apr 13 – Jun 13 |
| Onions | Start seeds indoors (spring) | Mar 2 – Mar 29 |
| Onions | Transplant outdoors (spring) | Apr 30 – May 29 |
| Broccoli | Start seeds indoors (spring) | Mar 26 – Apr 29 |
| Broccoli | Transplant outdoors (spring) | Apr 30 – May 29 |
| Broccoli | Start seeds indoors (fall) | Jun 4 – Jun 14 |
| Broccoli | Transplant outdoors (fall) | Jul 4 – Jul 15 |
| Cabbage | Start seeds indoors (spring) | Mar 16 – Apr 13 |
| Cabbage | Transplant outdoors (spring) | Apr 13 – May 14 |
| Cabbage | Start seeds indoors (fall) | May 25 – Jun 24 |
| Cabbage | Transplant outdoors (fall) | Jun 24 – Jul 25 |
| Leaf lettuce | Sow outdoors (spring) | Apr 13 – Jun 29 |
| Leaf lettuce | Sow outdoors (fall) | Jun 24 – Aug 10 |
| Spinach | Sow outdoors (spring) | Apr 6 – May 20 |
| Spinach | Sow outdoors (fall) | Jul 11 – Aug 15 |
| Radishes | Sow outdoors (spring) | Apr 13 – Jun 3 |
| Radishes | Sow outdoors (fall) | Jun 24 – Aug 25 |
| Kale | Sow outdoors (spring) | Apr 30 – May 20 |
| Kale | Sow outdoors (fall) | Jun 17 – Jul 25 |
| Carrots | Sow outdoors (spring) | May 14 – Jun 29 |
| Carrots | Sow outdoors (fall) | May 25 – Jul 10 |
| Garlic | Plant outdoors (fall) | Sep 24 – Oct 25 |
Where these dates come from
ZIP code 16915 is matched to the NOAA station Coudersport 7Se, PA, 4.3 km away, at 2,150 ft elevation (29 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Coudersport 7Se, PA (used) | 2,150 ft | May 14 | Oct 4 |
| Coudersport 1 Sw, PA | 1,650 ft | May 22 | Oct 1 |
| Oswayo 1 Ene, PA | 1,710 ft | May 20 | Sep 29 |
| Port Allegany, PA | 1,475 ft | May 15 | Oct 6 |
Frost dates near Coudersport
- Roulette, PA 16746 · last May 22, first Oct 1
- Genesee, PA 16923 · last May 4, first Oct 14
- Austin, PA 16720 · last May 22, first Oct 1
- Ulysses, PA 16948 · last May 14, first Oct 4
- Galeton, PA 16922 · last May 14, first Oct 4
- Port Allegany, PA 16743 · last May 15, first Oct 6
- Alma, NY 14708 · last May 15, first Oct 2
- Shinglehouse, PA 16748 · last May 15, first Oct 2
Frequently asked questions
- When is the last frost in Coudersport, PA?
- For ZIP code 16915, the average last spring frost (32°F) is May 14, based on NOAA 1991-2020 climate normals for the Coudersport 7Se, PA weather station. There is a 1-in-10 chance of a frost after May 30.
- When is the first frost in Coudersport, PA?
- The average first fall frost (32°F) is October 4. There is a 1-in-10 chance of frost by September 21, so tender plants are at risk from that point on.
- How long is the growing season in 16915?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 143 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.