Frost dates for Fittstown 6sw Mesonet, OK
At Fittstown 6sw Mesonet, the median last spring frost (32°F) is Mar 29 and the median first fall frost is Nov 6, for a typical growing season of 222 days. For a 90% chance that the last frost has passed, wait until Apr 18. Nearby ZIP codes are in USDA hardiness zone 7b.
- Mar 29Last spring frost (median)50% chance of 32°F after this date
- Apr 18Safer planting date10% chance of 32°F after this date
- Nov 6First fall frost (median)50% chance of 32°F by this date
- 222 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 24 | Apr 10 | Apr 28 |
| 32°F | Mar 8 | Mar 29 | Apr 18 |
| 28°F | Feb 24 | Mar 14 | Apr 4 |
| 24°F | Feb 7 | Mar 2 | Mar 21 |
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 12 |
| 32°F | Oct 21 | Nov 6 | Nov 22 |
| 28°F | Oct 30 | Nov 16 | Dec 3 |
| 24°F | Nov 8 | Nov 29 | Dec 17 |
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 | 200 days | 222 days |
| 32°F | 198 days | 222 days | 247 days |
| 28°F | 219 days | 246 days | 272 days |
| 24°F | 244 days | 273 days | 300 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 |
|---|---|---|---|
| 74865 | 7b | 5 to 10°F | 11 km |
| 74843 | 7b | 5 to 10°F | 12 km |
| 74842 | 7b | 5 to 10°F | 12 km |
| 74871 | 7b | 5 to 10°F | 16 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 USC00343145, at 34.5519, -96.7178, elevation 350 m (1,148 ft).
- Data quality: Representative (10+ years), 12 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
- Sulphur 4nne Mesonet (21 km)
- Chickasaw Nra (24 km)
- Tishomingo 6n Mesonet (25 km)
- Ada (26 km)
- Ada 2nne Mesonet (28 km)
- Centrahoma 1e Mesonet (36 km)
- Coleman 4w (37 km)
- Centrahoma 2 ESE (37 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.