Frost dates for Millbrook 3 W, NY
At Millbrook 3 W, the median last spring frost (32°F) is May 4 and the median first fall frost is Oct 7, for a typical growing season of 155 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zone 6a.
- May 4Last spring frost (median)50% chance of 32°F after this date
- May 21Safer planting date10% chance of 32°F after this date
- Oct 7First fall frost (median)50% chance of 32°F by this date
- 155 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 1 | May 19 | Jun 2 |
| 32°F | Apr 21 | May 4 | May 21 |
| 28°F | Apr 6 | Apr 22 | May 9 |
| 24°F | Mar 26 | Apr 8 | Apr 25 |
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 16 | Sep 29 | Oct 11 |
| 32°F | Sep 28 | Oct 7 | Oct 24 |
| 28°F | Oct 5 | Oct 19 | Nov 4 |
| 24°F | Oct 15 | Nov 1 | 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 | 132 days | 154 days |
| 32°F | 135 days | 155 days | 176 days |
| 28°F | 158 days | 179 days | 200 days |
| 24°F | 183 days | 206 days | 226 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 |
|---|---|---|---|
| 12578 | 6a | -10 to -5°F | 5 km |
| 12545 | 6a | -10 to -5°F | 5 km |
| 12569 | 6a | -10 to -5°F | 7 km |
| 12585 | 6a | -10 to -5°F | 8 km |
| 12540 | 6a | -10 to -5°F | 13 km |
| 12581 | 6a | -10 to -5°F | 13 km |
| 12522 | 6a | -10 to -5°F | 14 km |
| 12592 | 6a | -10 to -5°F | 16 km |
| 12501 | 6a | -10 to -5°F | 17 km |
| 06757 | 6a | -10 to -5°F | 23 km |
| 06785 | 6a | -10 to -5°F | 26 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 USW00064756, at 41.7858, -73.7422, elevation 126 m (413 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 141.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Rhinebeck 4se (15 km)
- Poughkeepsie (16 km)
- Poughkeepsie Dutchess Co Airport (21 km)
- Stormville (28 km)
- Mohonk Lake (34 km)
- Carmel 4n (36 km)
- Copake (40 km)
- Walden 1 ESE (44 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.