Frost dates for Owens Cross Roads 3s, AL
At Owens Cross Roads 3s, the median last spring frost (32°F) is Apr 4 and the median first fall frost is Oct 30, for a typical growing season of 210 days. For a 90% chance that the last frost has passed, wait until Apr 20. Nearby ZIP codes are in USDA hardiness zone 8a.
- Apr 4Last spring frost (median)50% chance of 32°F after this date
- Apr 20Safer planting date10% chance of 32°F after this date
- Oct 30First fall frost (median)50% chance of 32°F by this date
- 210 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 | Mar 31 | Apr 16 | Apr 30 |
| 32°F | Mar 18 | Apr 4 | Apr 20 |
| 28°F | Mar 2 | Mar 24 | Apr 9 |
| 24°F | Feb 13 | Mar 8 | Mar 30 |
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 | Oct 8 | Oct 22 | Nov 2 |
| 32°F | Oct 17 | Oct 30 | Nov 13 |
| 28°F | Oct 26 | Nov 8 | Nov 30 |
| 24°F | Nov 5 | Nov 21 | Dec 14 |
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 | 169 days | 188 days | 209 days |
| 32°F | 189 days | 210 days | 229 days |
| 28°F | 207 days | 231 days | 256 days |
| 24°F | 230 days | 257 days | 290 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 |
|---|---|---|---|
| 35760 | 8a | 10 to 15°F | 6 km |
| 35803 | 8a | 10 to 15°F | 7 km |
| 35763 | 8a | 10 to 15°F | 7 km |
| 35175 | 8a | 10 to 15°F | 14 km |
| 35747 | 8a | 10 to 15°F | 15 km |
| 35754 | 8a | 10 to 15°F | 16 km |
| 35802 | 8a | 10 to 15°F | 17 km |
| 35741 | 8a | 10 to 15°F | 20 km |
| 35748 | 8a | 10 to 15°F | 20 km |
| 35801 | 8a | 10 to 15°F | 22 km |
| 35764 | 8a | 10 to 15°F | 23 km |
| 35811 | 8a | 10 to 15°F | 28 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 USC00016196, at 34.5528, -86.4450, elevation 180 m (590 ft).
- Data quality: Representative (10+ years), 15 years of freeze data.
- Average days per year at or below 32°F: 78.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Guntersville No.2 (26 km)
- Guntersville (26 km)
- Huntsville Intl Airport (33 km)
- Scottsboro (38 km)
- Belle Mina 2 N (43 km)
- Scottsboro 2 NE (44 km)
- Decatur 4se (45 km)
- Decatur Pryor Field (47 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.