Frost dates for Huntsville 1 SSW, AR
At Huntsville 1 SSW, the median last spring frost (32°F) is Mar 30 and the median first fall frost is Nov 7, for a typical growing season of 224 days. For a 90% chance that the last frost has passed, wait until Apr 15. Nearby ZIP codes are in USDA hardiness zone 7a.
- Mar 30Last spring frost (median)50% chance of 32°F after this date
- Apr 15Safer planting date10% chance of 32°F after this date
- Nov 7First fall frost (median)50% chance of 32°F by this date
- 224 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 10 | Apr 27 |
| 32°F | Mar 11 | Mar 30 | Apr 15 |
| 28°F | Feb 27 | Mar 18 | Apr 4 |
| 24°F | Feb 16 | Mar 7 | Mar 26 |
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 14 | Oct 28 | Nov 10 |
| 32°F | Oct 24 | Nov 7 | Nov 23 |
| 28°F | Nov 1 | Nov 17 | Dec 4 |
| 24°F | Nov 9 | Nov 27 | Dec 18 |
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 | 179 days | 201 days | 224 days |
| 32°F | 201 days | 224 days | 247 days |
| 28°F | 219 days | 245 days | 270 days |
| 24°F | 241 days | 265 days | 293 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 |
|---|---|---|---|
| 72773 | 7a | 0 to 5°F | 9 km |
| 72740 | 7a | 0 to 5°F | 10 km |
| 72738 | 7a | 0 to 5°F | 16 km |
| 72616 | 7a | 0 to 5°F | 36 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 USC00033544, at 36.0700, -93.7522, elevation 544 m (1,783 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 67.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Kingston 2s (22 km)
- Winslow 7ne (34 km)
- Fayetteville Exp. Station (38 km)
- Fayetteville Drake Field (38 km)
- Bentonville 4 S (50 km)
- Fayetteville NW Ar Airport (55 km)
- Deer (56 km)
- Harrison Boone Co Airport (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.