Frost dates for El Reno 5 WNW Mesonet, OK
At El Reno 5 WNW Mesonet, the median last spring frost (32°F) is Apr 12 and the median first fall frost is Oct 27, for a typical growing season of 196 days. For a 90% chance that the last frost has passed, wait until Apr 25. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 12Last spring frost (median)50% chance of 32°F after this date
- Apr 25Safer planting date10% chance of 32°F after this date
- Oct 27First fall frost (median)50% chance of 32°F by this date
- 196 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 7 | Apr 22 | May 4 |
| 32°F | Mar 28 | Apr 12 | Apr 25 |
| 28°F | Mar 12 | Apr 1 | Apr 18 |
| 24°F | Feb 27 | Mar 15 | Apr 4 |
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 18 | Oct 30 |
| 32°F | Oct 13 | Oct 27 | Nov 8 |
| 28°F | Oct 21 | Nov 4 | Nov 17 |
| 24°F | Oct 30 | Nov 13 | Nov 29 |
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 | 157 days | 176 days | 195 days |
| 32°F | 176 days | 196 days | 216 days |
| 28°F | 195 days | 217 days | 242 days |
| 24°F | 215 days | 241 days | 266 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 |
|---|---|---|---|
| 73014 | 7b | 5 to 10°F | 11 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 USC00342825, at 35.5483, -98.0364, elevation 419 m (1,374 ft).
- Data quality: Representative (10+ years), 10 years of freeze data.
- Average days per year at or below 32°F: 98.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- El Reno 1 N (7 km)
- Geary (27 km)
- Minco 2ssw Mesonet (32 km)
- Kingfisher 1w Mesonet (35 km)
- Oklahoma City Post Airport (35 km)
- Kingfisher (36 km)
- Hinton 7w Mesonet (41 km)
- Oklahoma City Will Rogers Airport (43 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.