Frost dates for Bridgton 3 NW, ME
At Bridgton 3 NW, the median last spring frost (32°F) is May 5 and the median first fall frost is Oct 5, for a typical growing season of 151 days. For a 90% chance that the last frost has passed, wait until May 17. Nearby ZIP codes are in USDA hardiness zone 5a.
- May 5Last spring frost (median)50% chance of 32°F after this date
- May 17Safer planting date10% chance of 32°F after this date
- Oct 5First fall frost (median)50% chance of 32°F by this date
- 151 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 5 | May 18 | Jun 1 |
| 32°F | Apr 26 | May 5 | May 17 |
| 28°F | Apr 13 | Apr 25 | May 4 |
| 24°F | Apr 3 | Apr 12 | Apr 23 |
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 12 | Sep 27 | Oct 8 |
| 32°F | Sep 22 | Oct 5 | Oct 21 |
| 28°F | Oct 1 | Oct 19 | Nov 3 |
| 24°F | Oct 15 | Nov 1 | Nov 15 |
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 | 111 days | 131 days | 147 days |
| 32°F | 134 days | 151 days | 169 days |
| 28°F | 156 days | 175 days | 193 days |
| 24°F | 180 days | 200 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 |
|---|---|---|---|
| 04009 | 5a | -20 to -15°F | 3 km |
| 04057 | 5a | -20 to -15°F | 5 km |
| 04022 | 5a | -20 to -15°F | 10 km |
| 04040 | 5a | -20 to -15°F | 10 km |
| 04055 | 5a | -20 to -15°F | 14 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 USC00170844, at 44.0700, -70.7467, elevation 155 m (508 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 176.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fryeburg E Slopes Airport (18 km)
- East Hiram (21 km)
- Bethel 6 SSE (28 km)
- Poland (32 km)
- Windham 2nw (33 km)
- Lewiston (42 km)
- West Buxton 2 NNW (44 km)
- Gray (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.