Frost dates for Brockport, NY
At Brockport, the median last spring frost (32°F) is Apr 24 and the median first fall frost is Oct 30, for a typical growing season of 187 days. For a 90% chance that the last frost has passed, wait until May 7. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 24Last spring frost (median)50% chance of 32°F after this date
- May 7Safer planting date10% chance of 32°F after this date
- Oct 30First fall frost (median)50% chance of 32°F by this date
- 187 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 23 | May 4 | May 18 |
| 32°F | Apr 12 | Apr 24 | May 7 |
| 28°F | Mar 31 | Apr 11 | Apr 22 |
| 24°F | Mar 18 | Apr 2 | Apr 14 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 1 | Oct 14 | Nov 1 |
| 32°F | Oct 12 | Oct 30 | Nov 12 |
| 28°F | Oct 27 | Nov 10 | Nov 24 |
| 24°F | Nov 8 | Nov 21 | Dec 7 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 144 days | 163 days | 183 days |
| 32°F | 167 days | 187 days | 205 days |
| 28°F | 192 days | 211 days | 230 days |
| 24°F | 214 days | 233 days | 254 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 14420 | 6b | -5 to 0°F | 2 km |
| 14470 | 6b | -5 to 0°F | 9 km |
| 14559 | 6b | -5 to 0°F | 11 km |
| 14464 | 6b | -5 to 0°F | 12 km |
| 14476 | 6b | -5 to 0°F | 15 km |
| 14468 | 6b | -5 to 0°F | 15 km |
| 14416 | 6b | -5 to 0°F | 15 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00300937, at 43.2161, -77.9528, elevation 152 m (498 ft).
- Data quality: Estimated from nearby stations (2+ years), 5 years of freeze data.
- Average days per year at or below 32°F: 128.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Albion (22 km)
- Rochester Gtr Intl Airport (25 km)
- Batavia (27 km)
- Pavilion 2ne (34 km)
- Avon (37 km)
- Webster 2 NE (46 km)
- Wyoming 3w (47 km)
- Victor 2nw (47 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.