Frost dates for Morrisville 6 SW, NY
At Morrisville 6 SW, the median last spring frost (32°F) is May 6 and the median first fall frost is Oct 9, for a typical growing season of 156 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zone 5b.
- May 6Last spring frost (median)50% chance of 32°F after this date
- May 21Safer planting date10% chance of 32°F after this date
- Oct 9First fall frost (median)50% chance of 32°F by this date
- 156 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 | May 3 | May 19 | Jun 1 |
| 32°F | Apr 25 | May 6 | May 21 |
| 28°F | Apr 13 | Apr 26 | May 9 |
| 24°F | Apr 4 | Apr 15 | Apr 27 |
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 | Sep 17 | Oct 1 | Oct 11 |
| 32°F | Sep 28 | Oct 9 | Oct 25 |
| 28°F | Oct 5 | Oct 22 | Nov 6 |
| 24°F | Oct 16 | Nov 2 | Nov 17 |
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 | 113 days | 133 days | 152 days |
| 32°F | 137 days | 156 days | 173 days |
| 28°F | 157 days | 178 days | 198 days |
| 24°F | 181 days | 202 days | 219 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 |
|---|---|---|---|
| 13061 | 5b | -15 to -10°F | 2 km |
| 13334 | 5b | -15 to -10°F | 5 km |
| 13484 | 5b | -15 to -10°F | 6 km |
| 13072 | 5b | -15 to -10°F | 9 km |
| 13408 | 5b | -15 to -10°F | 10 km |
| 13122 | 5b | -15 to -10°F | 11 km |
| 13310 | 5b | -15 to -10°F | 14 km |
| 13035 | 5b | -15 to -10°F | 14 km |
| 13134 | 5b | -15 to -10°F | 14 km |
| 13346 | 5b | -15 to -10°F | 15 km |
| 13051 | 5b | -15 to -10°F | 16 km |
| 13052 | 5b | -15 to -10°F | 17 km |
| 13409 | 5b | -15 to -10°F | 19 km |
| 13402 | 5b | -15 to -10°F | 19 km |
| 13155 | 5b | -15 to -10°F | 19 km |
| 13124 | 5b | -15 to -10°F | 22 km |
| 13032 | 5b | -15 to -10°F | 27 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 USC00305512, at 42.8417, -75.7264, elevation 512 m (1,681 ft).
- Data quality: Representative (10+ years), 19 years of freeze data.
- Average days per year at or below 32°F: 158.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sherburne (26 km)
- Tully Heiberg Forest (30 km)
- Norwich (40 km)
- Syracuse Hancock Intl Airport (43 km)
- Utica Oneida Co Airport (44 km)
- Rome Griffiss Airfield (51 km)
- Camden (55 km)
- Brewerton Lock 23 (58 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.