Frost dates for 14830Corning, NY
The average last spring frost in Corning is May 17 and the average first fall frost is October 2, giving a typical growing season of about 139 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 17
- Average first fall frost
- Oct 2
- Growing season
- 139 days
Safer after May 31 (1-in-10 risk)
Possible by Sep 21 (1-in-10 risk)
Last frost typically in 195 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 13 · May 29 · Jun 11 | Sep 11 · Sep 24 · Oct 4 | 117 days | 100% |
| Frost / freeze (32°F) | Apr 30 · May 17 · May 31 | Sep 21 · Oct 2 · Oct 16 | 139 days | 100% |
| Hard freeze (28°F) | Apr 21 · May 4 · May 20 | Sep 30 · Oct 13 · Oct 30 | 162 days | 100% |
Planting calendar for Corning
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 16 – Jun 22 |
| Tomatoes | Transplant outdoors | Jun 2 – Jun 12 |
| Peppers | Start seeds indoors | Apr 16 – May 17 |
| Peppers | Transplant outdoors | Jun 16 – Jul 17 |
| Eggplant | Start seeds indoors | May 3 – Jun 1 |
| Eggplant | Transplant outdoors | Jun 16 – Jul 17 |
| Cucumbers | Sow outdoors | Jun 16 – Jun 22 |
| Summer squash | Sow outdoors | Jun 2 – Jul 17 |
| Winter squash & pumpkins | Sow outdoors | Jun 16 – Jul 17 |
| Snap beans | Sow outdoors | Jun 2 – Jul 15 |
| Sweet corn | Sow outdoors | Jun 2 – Jun 12 |
| Watermelon & cantaloupe | Sow outdoors | Jun 16 – Jul 17 |
| Okra | Sow outdoors | Jun 9 – Jul 2 |
| Peas | Sow outdoors (spring) | Apr 16 – Jun 1 |
| Potatoes | Plant outdoors (spring) | Apr 16 – Jun 16 |
| Onions | Start seeds indoors (spring) | Mar 5 – Apr 1 |
| Onions | Transplant outdoors (spring) | May 3 – Jun 1 |
| Broccoli | Start seeds indoors (spring) | Mar 29 – May 2 |
| Broccoli | Transplant outdoors (spring) | May 3 – Jun 1 |
| Broccoli | Start seeds indoors (fall) | Jun 2 – Jun 12 |
| Broccoli | Transplant outdoors (fall) | Jul 2 – Jul 13 |
| Cabbage | Start seeds indoors (spring) | Mar 19 – Apr 16 |
| Cabbage | Transplant outdoors (spring) | Apr 16 – May 17 |
| Cabbage | Start seeds indoors (fall) | May 23 – Jun 22 |
| Cabbage | Transplant outdoors (fall) | Jun 22 – Jul 23 |
| Leaf lettuce | Sow outdoors (spring) | Apr 16 – Jul 2 |
| Leaf lettuce | Sow outdoors (fall) | Jun 22 – Aug 8 |
| Spinach | Sow outdoors (spring) | Apr 9 – May 23 |
| Spinach | Sow outdoors (fall) | Jul 9 – Aug 13 |
| Radishes | Sow outdoors (spring) | Apr 16 – Jun 6 |
| Radishes | Sow outdoors (fall) | Jun 22 – Aug 23 |
| Kale | Sow outdoors (spring) | May 3 – May 23 |
| Kale | Sow outdoors (fall) | Jun 15 – Jul 23 |
| Carrots | Sow outdoors (spring) | May 17 – Jul 2 |
| Carrots | Sow outdoors (fall) | May 23 – Jul 8 |
| Garlic | Plant outdoors (fall) | Sep 22 – Oct 23 |
Where these dates come from
ZIP code 14830 is matched to the NOAA station Corning, NY, 1.8 km away, at 1,147 ft elevation (222 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Corning, NY (used) | 1,147 ft | May 17 | Oct 2 |
| Elmira Corning Rgnl Ap, NY | 955 ft | May 9 | Oct 9 |
| Addison, NY | 999 ft | May 14 | Oct 5 |
| Elmira, NY | 947 ft | May 6 | Oct 11 |
Frost dates near Corning
- Corning, NY 14831 · last May 17, first Oct 2
- Painted Post, NY 14870 · last May 14, first Oct 5
- Big Flats, NY 14814 · last May 9, first Oct 9
- Coopers Plains, NY 14827 · last May 14, first Oct 5
- Elmira, NY 14903 · last May 9, first Oct 9
- Lindley, NY 14858 · last May 9, first Oct 12
- Beaver Dams, NY 14812 · last May 10, first Oct 8
- Campbell, NY 14821 · last May 14, first Oct 5
Frequently asked questions
- When is the last frost in Corning, NY?
- For ZIP code 14830, the average last spring frost (32°F) is May 17, based on NOAA 1991-2020 climate normals for the Corning, NY weather station. There is a 1-in-10 chance of a frost after May 31.
- When is the first frost in Corning, NY?
- The average first fall frost (32°F) is October 2. 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 14830?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 139 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.