Frost dates for Dardanelle, AR
At Dardanelle, the median last spring frost (32°F) is Apr 1 and the median first fall frost is Nov 2, for a typical growing season of 215 days. For a 90% chance that the last frost has passed, wait until Apr 17. Nearby ZIP codes are in USDA hardiness zone 8a.
- Apr 1Last spring frost (median)50% chance of 32°F after this date
- Apr 17Safer planting date10% chance of 32°F after this date
- Nov 2First fall frost (median)50% chance of 32°F by this date
- 215 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 29 | Apr 13 | Apr 28 |
| 32°F | Mar 16 | Apr 1 | Apr 17 |
| 28°F | Mar 1 | Mar 19 | Apr 6 |
| 24°F | Feb 12 | Mar 5 | Mar 24 |
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 11 | Oct 24 | Nov 5 |
| 32°F | Oct 22 | Nov 2 | Nov 16 |
| 28°F | Oct 31 | Nov 12 | Nov 30 |
| 24°F | Nov 7 | Nov 25 | Dec 13 |
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 | 175 days | 195 days | 214 days |
| 32°F | 196 days | 215 days | 236 days |
| 28°F | 216 days | 240 days | 262 days |
| 24°F | 240 days | 264 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 |
|---|---|---|---|
| 72834 | 8a | 10 to 15°F | 8 km |
| 72829 | 8a | 10 to 15°F | 15 km |
| 72835 | 8a | 10 to 15°F | 17 km |
| 72847 | 8a | 10 to 15°F | 18 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 USC00031838, at 35.2342, -93.1675, elevation 113 m (370 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 66.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Russellville Muni Airport (7 km)
- Nimrod Dam (31 km)
- Morrilton (37 km)
- Clarksville 6 NE (40 km)
- Clarksville 2n (40 km)
- Subiaco (43 km)
- Blue Mountain Dam (46 km)
- Alum Fk (57 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.