Frost dates for Frenchville Aroostook Airport, ME
At Frenchville Aroostook Airport, the median last spring frost (32°F) is May 6 and the median first fall frost is Oct 2, for a typical growing season of 147 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zones 4a to 4b.
- 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 2First fall frost (median)50% chance of 32°F by this date
- 147 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 6 | May 22 | Jun 6 |
| 32°F | Apr 25 | May 6 | May 21 |
| 28°F | Apr 13 | Apr 27 | May 7 |
| 24°F | Apr 5 | Apr 17 | Apr 29 |
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 8 | Sep 22 | Oct 5 |
| 32°F | Sep 18 | Oct 2 | Oct 17 |
| 28°F | Sep 30 | Oct 17 | Nov 1 |
| 24°F | Oct 12 | Nov 1 | Nov 13 |
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 | 101 days | 122 days | 142 days |
| 32°F | 128 days | 147 days | 165 days |
| 28°F | 152 days | 172 days | 191 days |
| 24°F | 177 days | 195 days | 213 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 |
|---|---|---|---|
| 04756 | 4b | -25 to -20°F | 4 km |
| 04772 | 4a | -30 to -25°F | 6 km |
| 04745 | 4b | -25 to -20°F | 7 km |
| 04773 | 4b | -25 to -20°F | 7 km |
| 04746 | 4a | -30 to -25°F | 13 km |
| 04779 | 4a | -30 to -25°F | 19 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 USW00004836, at 47.2856, -68.3133, elevation 301 m (988 ft).
- Data quality: Representative (10+ years), 24 years of freeze data.
- Average days per year at or below 32°F: 183.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fort Kent (23 km)
- Van Buren 2 (31 km)
- Limestone 4 NNW (49 km)
- Caribou Muni Airport (51 km)
- Allagash (58 km)
- Presque Isle (74 km)
- Bridgewater (102 km)
- Clayton Lake (119 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.