Frost dates for Pine Bluff, AR
At Pine Bluff, the median last spring frost (32°F) is Mar 14 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 zones 8a to 8b.
- Mar 14Last 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 11 | Mar 29 | Apr 15 |
| 32°F | Feb 27 | Mar 14 | Apr 2 |
| 28°F | Feb 11 | Mar 4 | Mar 19 |
| 24°F | Jan 16 | Feb 19 | Mar 11 |
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 4 | Nov 20 |
| 32°F | Oct 31 | Nov 16 | Dec 1 |
| 28°F | Nov 9 | Nov 29 | Dec 20 |
| 24°F | Nov 21 | Dec 16 | Jan 11 |
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 | 221 days | 246 days |
| 32°F | 221 days | 245 days | 267 days |
| 28°F | 245 days | 270 days | 299 days |
| 24°F | 266 days | 300 days | 336 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 |
|---|---|---|---|
| 71602 | 8a | 10 to 15°F | 12 km |
| 71603 | 8a | 10 to 15°F | 13 km |
| 72152 | 8b | 15 to 20°F | 15 km |
| 72004 | 8b | 15 to 20°F | 24 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 USC00035754, at 34.2256, -92.0186, elevation 70 m (230 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 50.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Pine Bluff Grider Field (10 km)
- Rison (35 km)
- Sheridan (35 km)
- Cane Creek State Park (41 km)
- Keo (42 km)
- Leola (53 km)
- Fordyce (57 km)
- Dumas (58 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.