Frost dates for Barnsdall, OK
At Barnsdall, the median last spring frost (32°F) is Mar 31 and the median first fall frost is Oct 31, for a typical growing season of 212 days. For a 90% chance that the last frost has passed, wait until Apr 14. Nearby ZIP codes are in USDA hardiness zones 7a to 7b.
- Mar 31Last spring frost (median)50% chance of 32°F after this date
- Apr 14Safer planting date10% chance of 32°F after this date
- Oct 31First fall frost (median)50% chance of 32°F by this date
- 212 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 28 | Apr 11 | Apr 27 |
| 32°F | Mar 12 | Mar 31 | Apr 14 |
| 28°F | Feb 28 | Mar 20 | Apr 6 |
| 24°F | Feb 20 | Mar 8 | Mar 27 |
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 4 | Oct 21 | Nov 3 |
| 32°F | Oct 14 | Oct 31 | Nov 13 |
| 28°F | Oct 24 | Nov 8 | Nov 27 |
| 24°F | Nov 1 | Nov 18 | Dec 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 | 170 days | 191 days | 215 days |
| 32°F | 190 days | 212 days | 236 days |
| 28°F | 209 days | 235 days | 260 days |
| 24°F | 229 days | 256 days | 280 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 |
|---|---|---|---|
| 74002 | 7a | 0 to 5°F | 2 km |
| 74001 | 7a | 0 to 5°F | 13 km |
| 74084 | 7a | 0 to 5°F | 16 km |
| 74070 | 7b | 5 to 10°F | 20 km |
| 74061 | 7a | 0 to 5°F | 25 km |
| 74035 | 7a | 0 to 5°F | 26 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 USC00340535, at 36.5653, -96.1664, elevation 235 m (770 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 88.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Pawhuska (20 km)
- Bartlesville F P Field (26 km)
- Bartlesville 3 (26 km)
- Tulsa Intl Airport (48 km)
- Nowata (49 km)
- Mannford 6 NW (50 km)
- Ralston (52 km)
- Claremore 2 ENE (59 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.