Frost dates for Fort Cobb 4nnw Mesonet, OK
At Fort Cobb 4nnw Mesonet, the median last spring frost (32°F) is Apr 5 and the median first fall frost is Nov 3, for a typical growing season of 210 days. For a 90% chance that the last frost has passed, wait until Apr 23. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 5Last spring frost (median)50% chance of 32°F after this date
- Apr 23Safer planting date10% chance of 32°F after this date
- Nov 3First fall frost (median)50% chance of 32°F by this date
- 210 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 30 | Apr 16 | Apr 30 |
| 32°F | Mar 17 | Apr 5 | Apr 23 |
| 28°F | Mar 3 | Mar 25 | Apr 13 |
| 24°F | Feb 19 | Mar 9 | Apr 1 |
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 9 | Oct 24 | Nov 5 |
| 32°F | Oct 19 | Nov 3 | Nov 16 |
| 28°F | Oct 26 | Nov 10 | Nov 27 |
| 24°F | Nov 1 | Nov 22 | Dec 9 |
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 | 169 days | 189 days | 211 days |
| 32°F | 187 days | 210 days | 234 days |
| 28°F | 206 days | 231 days | 258 days |
| 24°F | 227 days | 257 days | 284 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 |
|---|---|---|---|
| 73038 | 7b | 5 to 10°F | 3 km |
| 73001 | 7b | 5 to 10°F | 10 km |
| 73009 | 7b | 5 to 10°F | 17 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 USC00343277, at 35.1489, -98.4658, elevation 422 m (1,384 ft).
- Data quality: Representative (10+ years), 10 years of freeze data.
- Average days per year at or below 32°F: 84.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Carnegie 5 NE (11 km)
- Anadarko 3 E (26 km)
- Apache 4ene Mesonet (31 km)
- Hinton 7w Mesonet (37 km)
- Weatherford (46 km)
- Medicine Pk 3w Mesonet (48 km)
- Minco 2ssw Mesonet (48 km)
- Weatherford 4wsw Mesnt (49 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.