Frost dates for Red Rock 7sse Mesonet, OK
At Red Rock 7sse Mesonet, the median last spring frost (32°F) is Apr 8 and the median first fall frost is Oct 28, for a typical growing season of 202 days. For a 90% chance that the last frost has passed, wait until Apr 24. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 8Last spring frost (median)50% chance of 32°F after this date
- Apr 24Safer planting date10% chance of 32°F after this date
- Oct 28First fall frost (median)50% chance of 32°F by this date
- 202 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 | Apr 3 | Apr 19 | May 3 |
| 32°F | Mar 22 | Apr 8 | Apr 24 |
| 28°F | Mar 4 | Mar 28 | Apr 12 |
| 24°F | Feb 24 | Mar 14 | Apr 3 |
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 20 | Nov 1 |
| 32°F | Oct 14 | Oct 28 | Nov 11 |
| 28°F | Oct 22 | Nov 5 | Nov 23 |
| 24°F | Oct 30 | Nov 16 | Dec 4 |
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 | 161 days | 182 days | 203 days |
| 32°F | 181 days | 202 days | 228 days |
| 28°F | 200 days | 224 days | 249 days |
| 24°F | 220 days | 247 days | 272 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 |
|---|---|---|---|
| 73061 | 7a | 0 to 5°F | 12 km |
| 74651 | 7a | 0 to 5°F | 13 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 USC00347507, at 36.3558, -97.1531, elevation 293 m (961 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 93.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Perry (14 km)
- Stillwater Regional Airport (22 km)
- Stillwater 5 WNW (25 km)
- Orlando 5e Mesonet (26 km)
- Stillwater Mesonet (27 km)
- Stillwater 2 W (27 km)
- Stillwater 2 W (27 km)
- Billings (33 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.