Frost dates for W Memphis, AR
At W Memphis, the median last spring frost (32°F) is Mar 19 and the median first fall frost is Nov 10, for a typical growing season of 235 days. For a 90% chance that the last frost has passed, wait until Apr 7. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 19Last spring frost (median)50% chance of 32°F after this date
- Apr 7Safer planting date10% chance of 32°F after this date
- Nov 10First fall frost (median)50% chance of 32°F by this date
- 235 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 14 | Apr 2 | Apr 20 |
| 32°F | Mar 1 | Mar 19 | Apr 7 |
| 28°F | Feb 16 | Mar 7 | Mar 31 |
| 24°F | Jan 31 | Feb 27 | Mar 18 |
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 17 | Oct 31 | Nov 15 |
| 32°F | Oct 28 | Nov 10 | Nov 30 |
| 28°F | Nov 5 | Nov 22 | Dec 14 |
| 24°F | Nov 14 | Dec 7 | Jan 1 |
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 | 190 days | 212 days | 237 days |
| 32°F | 210 days | 235 days | 262 days |
| 28°F | 233 days | 260 days | 290 days |
| 24°F | 255 days | 288 days | 317 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 |
|---|---|---|---|
| 72301 | 8a | 10 to 15°F | 1 km |
| 38113 | 8a | 10 to 15°F | 4 km |
| 38109 | 8a | 10 to 15°F | 10 km |
| 38103 | 8a | 10 to 15°F | 12 km |
| 38127 | 8a | 10 to 15°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 USC00037712, at 35.1242, -90.1805, elevation 66 m (215 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 58.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- West Memphis Muni Airport (5 km)
- Wynne (58 km)
- Keiser (63 km)
- Poinsett State Park (65 km)
- Marianna 2 S (68 km)
- Helena (77 km)
- Beedeville 4 NE (88 km)
- Jonesboro Muni Airport (89 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.