Frost dates for Little Rock, AR
At Little Rock, the median last spring frost (32°F) is Mar 16 and the median first fall frost is Nov 16, for a typical growing season of 245 days. For a 90% chance that the last frost has passed, wait until Apr 2. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 16Last spring frost (median)50% chance of 32°F after this date
- Apr 2Safer planting date10% chance of 32°F after this date
- Nov 16First fall frost (median)50% chance of 32°F by this date
- 245 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 10 | Mar 28 | Apr 16 |
| 32°F | Feb 27 | Mar 16 | Apr 2 |
| 28°F | Feb 16 | Mar 4 | Mar 21 |
| 24°F | Jan 30 | Feb 23 | Mar 12 |
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 23 | Nov 6 | Nov 21 |
| 32°F | Oct 31 | Nov 16 | Dec 2 |
| 28°F | Nov 10 | Nov 27 | Dec 17 |
| 24°F | Nov 21 | Dec 12 | Jan 6 |
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 | 200 days | 222 days | 246 days |
| 32°F | 221 days | 245 days | 269 days |
| 28°F | 241 days | 268 days | 296 days |
| 24°F | 263 days | 294 days | 325 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 99% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 72199 | 8a | 10 to 15°F | 3 km |
| 72119 | 8a | 10 to 15°F | 3 km |
| 72116 | 8a | 10 to 15°F | 4 km |
| 72120 | 8a | 10 to 15°F | 8 km |
| 72207 | 8a | 10 to 15°F | 10 km |
| 72099 | 8a | 10 to 15°F | 12 km |
| 72076 | 8a | 10 to 15°F | 14 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 USW00003952, at 34.8364, -92.2619, elevation 173 m (568 ft).
- Data quality: Standard (24+ years of data), 25 years of freeze data.
- Average days per year at or below 32°F: 41.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Marche (9 km)
- Little Rock Airport Adams Field (12 km)
- Cabot (28 km)
- Keo (36 km)
- Conway (36 km)
- Benton (43 km)
- Greenbrier (46 km)
- Alum Fk (53 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.