Frost dates for 14580Webster, NY
The average last spring frost in Webster is May 1 and the average first fall frost is October 20, giving a typical growing season of about 171 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 1
- Average first fall frost
- Oct 20
- Growing season
- 171 days
Safer after May 16 (1-in-10 risk)
Possible by Oct 4 (1-in-10 risk)
Last frost typically in 179 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 29 · May 12 · May 25 | Sep 25 · Oct 7 · Oct 21 | 148 days | 100% |
| Frost / freeze (32°F) | Apr 18 · May 1 · May 16 | Oct 4 · Oct 20 · Nov 5 | 171 days | 100% |
| Hard freeze (28°F) | Apr 5 · Apr 19 · May 4 | Oct 19 · Nov 4 · Nov 17 | 196 days | 100% |
Planting calendar for Webster
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 31 – Jun 6 |
| Tomatoes | Transplant outdoors | May 17 – Jun 30 |
| Peppers | Start seeds indoors | Mar 31 – May 1 |
| Peppers | Transplant outdoors | May 31 – Jul 1 |
| Eggplant | Start seeds indoors | Apr 17 – May 16 |
| Eggplant | Transplant outdoors | May 31 – Jul 1 |
| Cucumbers | Sow outdoors | May 31 – Jul 10 |
| Summer squash | Sow outdoors | May 17 – Jul 1 |
| Winter squash & pumpkins | Sow outdoors | May 31 – Jul 1 |
| Snap beans | Sow outdoors | May 17 – Aug 2 |
| Sweet corn | Sow outdoors | May 17 – Jun 30 |
| Watermelon & cantaloupe | Sow outdoors | May 31 – Jul 1 |
| Okra | Sow outdoors | May 24 – Jun 16 |
| Peas | Sow outdoors (spring) | Mar 31 – May 16 |
| Potatoes | Plant outdoors (spring) | Mar 31 – May 31 |
| Onions | Start seeds indoors (spring) | Feb 17 – Mar 16 |
| Onions | Transplant outdoors (spring) | Apr 17 – May 16 |
| Broccoli | Start seeds indoors (spring) | Mar 13 – Apr 16 |
| Broccoli | Transplant outdoors (spring) | Apr 17 – May 16 |
| Broccoli | Start seeds indoors (fall) | Jun 20 – Jun 30 |
| Broccoli | Transplant outdoors (fall) | Jul 20 – Jul 31 |
| Cabbage | Start seeds indoors (spring) | Mar 3 – Mar 31 |
| Cabbage | Transplant outdoors (spring) | Mar 31 – May 1 |
| Cabbage | Start seeds indoors (fall) | Jun 10 – Jul 10 |
| Cabbage | Transplant outdoors (fall) | Jul 10 – Aug 10 |
| Leaf lettuce | Sow outdoors (spring) | Mar 31 – Jun 16 |
| Leaf lettuce | Sow outdoors (fall) | Jul 10 – Aug 26 |
| Spinach | Sow outdoors (spring) | Mar 24 – May 7 |
| Spinach | Sow outdoors (fall) | Jul 27 – Aug 31 |
| Radishes | Sow outdoors (spring) | Mar 31 – May 21 |
| Radishes | Sow outdoors (fall) | Jul 10 – Sep 10 |
| Kale | Sow outdoors (spring) | Apr 17 – May 7 |
| Kale | Sow outdoors (fall) | Jul 3 – Aug 10 |
| Carrots | Sow outdoors (spring) | May 1 – Jun 16 |
| Carrots | Sow outdoors (fall) | Jun 10 – Jul 26 |
| Garlic | Plant outdoors (fall) | Oct 10 – Nov 10 |
Where these dates come from
ZIP code 14580 is matched to the NOAA station Webster 2 Ne, NY, 6.4 km away, at 275 ft elevation (112 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Webster 2 Ne, NY (used) | 275 ft | May 1 | Oct 20 |
| Rochester Gtr Intl Ap, NY | 533 ft | Apr 24 | Oct 25 |
| Victor 2Nw, NY | 588 ft | May 2 | Oct 17 |
| Sodus 1W, NY | 444 ft | May 6 | Oct 10 |
Frost dates near Webster
- Union Hill, NY 14563 · last May 6, first Oct 10
- Rochester, NY 14622 · last Apr 24, first Oct 25
- Penfield, NY 14526 · last Apr 24, first Oct 25
- East Rochester, NY 14445 · last Apr 24, first Oct 25
- Ontario, NY 14519 · last May 6, first Oct 10
- Ontario Center, NY 14520 · last May 6, first Oct 10
- Fairport, NY 14450 · last Apr 24, first Oct 25
- Walworth, NY 14568 · last May 6, first Oct 10
Frequently asked questions
- When is the last frost in Webster, NY?
- For ZIP code 14580, the average last spring frost (32°F) is May 1, based on NOAA 1991-2020 climate normals for the Webster 2 Ne, NY weather station. There is a 1-in-10 chance of a frost after May 16.
- When is the first frost in Webster, NY?
- The average first fall frost (32°F) is October 20. There is a 1-in-10 chance of frost by October 4, so tender plants are at risk from that point on.
- How long is the growing season in 14580?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 171 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.