Frost dates for Medicine Pk 3w Mesonet, OK
At Medicine Pk 3w Mesonet, the median last spring frost (32°F) is Mar 21 and the median first fall frost is Nov 12, for a typical growing season of 234 days. For a 90% chance that the last frost has passed, wait until Apr 8. Nearby ZIP codes are in USDA hardiness zones 7b to 8a.
- Mar 21Last spring frost (median)50% chance of 32°F after this date
- Apr 8Safer planting date10% chance of 32°F after this date
- Nov 12First fall frost (median)50% chance of 32°F by this date
- 234 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 14 | Apr 3 | Apr 20 |
| 32°F | Feb 28 | Mar 21 | Apr 8 |
| 28°F | Feb 18 | Mar 6 | Mar 31 |
| 24°F | Feb 2 | Feb 25 | Mar 13 |
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 21 | Nov 4 | Nov 19 |
| 32°F | Oct 27 | Nov 12 | Nov 28 |
| 28°F | Nov 1 | Nov 22 | Dec 7 |
| 24°F | Nov 10 | Dec 1 | Dec 22 |
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 | 189 days | 213 days | 239 days |
| 32°F | 205 days | 234 days | 258 days |
| 28°F | 228 days | 257 days | 281 days |
| 24°F | 253 days | 279 days | 309 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 |
|---|---|---|---|
| 73557 | 8a | 10 to 15°F | 6 km |
| 73507 | 7b | 5 to 10°F | 9 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 USC00345775, at 34.7292, -98.5694, elevation 487 m (1,597 ft).
- Data quality: Representative (10+ years), 12 years of freeze data.
- Average days per year at or below 32°F: 55.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Wichita Mountain Wr (13 km)
- Lawton (17 km)
- Lawton Muni Airport (24 km)
- Apache 4ene Mesonet (33 km)
- Chattanooga (35 km)
- Walters 4nw Mesonet (42 km)
- Fort Cobb 4nnw Mesonet (48 km)
- Walters (48 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.