Frost dates for Hot Springs Asos, AR
At Hot Springs Asos, the median last spring frost (32°F) is Mar 24 and the median first fall frost is Nov 9, for a typical growing season of 230 days. For a 90% chance that the last frost has passed, wait until Apr 13. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 24Last spring frost (median)50% chance of 32°F after this date
- Apr 13Safer planting date10% chance of 32°F after this date
- Nov 9First fall frost (median)50% chance of 32°F by this date
- 230 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 19 | Apr 7 | Apr 23 |
| 32°F | Mar 3 | Mar 24 | Apr 13 |
| 28°F | Feb 17 | Mar 8 | Mar 29 |
| 24°F | Jan 29 | Feb 25 | Mar 16 |
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 13 |
| 32°F | Oct 26 | Nov 9 | Nov 26 |
| 28°F | Nov 3 | Nov 21 | Dec 8 |
| 24°F | Nov 14 | Dec 5 | Dec 30 |
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 | 186 days | 206 days | 229 days |
| 32°F | 205 days | 230 days | 255 days |
| 28°F | 228 days | 255 days | 283 days |
| 24°F | 254 days | 286 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 |
|---|---|---|---|
| 71942 | 8a | 10 to 15°F | 10 km |
| 71941 | 8a | 10 to 15°F | 11 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 USW00003962, at 34.2900, -93.0600, elevation 163 m (535 ft).
- Data quality: Standard (24+ years of data), 26 years of freeze data.
- Average days per year at or below 32°F: 52.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Degray Lake State Park (9 km)
- Arkadelphia 2 N (16 km)
- Malvern (24 km)
- Hot Springs 1 NNE (25 km)
- Blakely Mountain Dam (33 km)
- Leola (45 km)
- Sparkman (47 km)
- Benton (52 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.