Frost dates for Madison, ME
At Madison, the median last spring frost (32°F) is May 8 and the median first fall frost is Oct 5, for a typical growing season of 149 days. For a 90% chance that the last frost has passed, wait until May 20. Nearby ZIP codes are in USDA hardiness zone 5a.
- May 8Last spring frost (median)50% chance of 32°F after this date
- May 20Safer planting date10% chance of 32°F after this date
- Oct 5First fall frost (median)50% chance of 32°F by this date
- 149 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 7 | May 19 | May 31 |
| 32°F | Apr 28 | May 8 | May 20 |
| 28°F | Apr 16 | Apr 28 | May 8 |
| 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 12 | Sep 25 | Oct 6 |
| 32°F | Sep 24 | Oct 5 | Oct 20 |
| 28°F | Oct 3 | Oct 18 | Nov 2 |
| 24°F | Oct 15 | Oct 31 | 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 | 109 days | 126 days | 143 days |
| 32°F | 131 days | 149 days | 167 days |
| 28°F | 155 days | 173 days | 192 days |
| 24°F | 180 days | 199 days | 215 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 |
|---|---|---|---|
| 04911 | 5a | -20 to -15°F | 7 km |
| 04950 | 5a | -20 to -15°F | 8 km |
| 04957 | 5a | -20 to -15°F | 9 km |
| 04958 | 5a | -20 to -15°F | 13 km |
| 04979 | 5a | -20 to -15°F | 17 km |
| 04976 | 5a | -20 to -15°F | 17 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 USC00174927, at 44.7975, -69.8889, elevation 67 m (220 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 172.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- New Sharon (20 km)
- Farmington (24 km)
- Harmony (32 km)
- Waterville Trtmt Plant (35 km)
- Livermore Falls 1 E (42 km)
- Corinna (53 km)
- Long Falls Dam (53 km)
- Augusta State Airport (54 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.