Frost dates for Courtland 2 WSW, AL
At Courtland 2 WSW, the median last spring frost (32°F) is Mar 28 and the median first fall frost is Nov 3, for a typical growing season of 221 days. For a 90% chance that the last frost has passed, wait until Apr 13. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 28Last spring frost (median)50% chance of 32°F after this date
- Apr 13Safer planting date10% chance of 32°F after this date
- Nov 3First fall frost (median)50% chance of 32°F by this date
- 221 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 25 | Apr 9 | Apr 23 |
| 32°F | Mar 8 | Mar 28 | Apr 13 |
| 28°F | Feb 22 | Mar 13 | Apr 2 |
| 24°F | Feb 5 | Feb 28 | Mar 21 |
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 15 | Oct 25 | Nov 5 |
| 32°F | Oct 22 | Nov 3 | Nov 18 |
| 28°F | Nov 1 | Nov 14 | Dec 3 |
| 24°F | Nov 9 | Nov 29 | Dec 27 |
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 | 182 days | 199 days | 218 days |
| 32°F | 199 days | 221 days | 246 days |
| 28°F | 221 days | 247 days | 272 days |
| 24°F | 247 days | 273 days | 307 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 |
|---|---|---|---|
| 35618 | 8a | 10 to 15°F | 4 km |
| 35672 | 8a | 10 to 15°F | 6 km |
| 35643 | 8a | 10 to 15°F | 13 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 USW00063868, at 34.6603, -87.3461, elevation 175 m (575 ft).
- Data quality: Representative (10+ years), 15 years of freeze data.
- Average days per year at or below 32°F: 64.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Moulton 2 (20 km)
- Muscle Shoals Regional Airport (25 km)
- Muscle Shoals Water Plant (29 km)
- Muscle Shoals 2 N (30 km)
- Lexington (34 km)
- Decatur Pryor Field (37 km)
- Athens (38 km)
- Decatur 4se (39 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.