Frost dates for Spencer 2ene Mesonet, OK
At Spencer 2ene Mesonet, the median last spring frost (32°F) is Apr 2 and the median first fall frost is Nov 5, for a typical growing season of 217 days. For a 90% chance that the last frost has passed, wait until Apr 18. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 2Last spring frost (median)50% chance of 32°F after this date
- Apr 18Safer planting date10% chance of 32°F after this date
- Nov 5First fall frost (median)50% chance of 32°F by this date
- 217 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 26 | Apr 12 | Apr 28 |
| 32°F | Mar 12 | Apr 2 | Apr 18 |
| 28°F | Feb 28 | Mar 17 | Apr 6 |
| 24°F | Feb 16 | Mar 4 | Mar 25 |
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 10 |
| 32°F | Oct 20 | Nov 5 | Nov 20 |
| 28°F | Oct 30 | Nov 13 | Dec 1 |
| 24°F | Nov 5 | Nov 25 | Dec 13 |
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 | 175 days | 197 days | 219 days |
| 32°F | 194 days | 217 days | 243 days |
| 28°F | 212 days | 239 days | 266 days |
| 24°F | 236 days | 265 days | 292 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 |
|---|---|---|---|
| 73084 | 7b | 5 to 10°F | 2 km |
| 73066 | 7b | 5 to 10°F | 5 km |
| 73141 | 7b | 5 to 10°F | 5 km |
| 73049 | 7b | 5 to 10°F | 6 km |
| 73151 | 7b | 5 to 10°F | 8 km |
| 73130 | 7b | 5 to 10°F | 9 km |
| 73121 | 7b | 5 to 10°F | 10 km |
| 73020 | 7b | 5 to 10°F | 11 km |
| 73110 | 7b | 5 to 10°F | 11 km |
| 73131 | 7b | 5 to 10°F | 12 km |
| 73111 | 7b | 5 to 10°F | 13 km |
| 73117 | 7b | 5 to 10°F | 13 km |
| 73115 | 7b | 5 to 10°F | 14 km |
| 73145 | 7b | 5 to 10°F | 15 km |
| 73150 | 7b | 5 to 10°F | 16 km |
| 73054 | 7b | 5 to 10°F | 19 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 USC00348390, at 35.5419, -97.3414, elevation 373 m (1,223 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 68.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Oklahoma City Post Airport (28 km)
- Oklahoma City Will Rogers Airport (29 km)
- Guthrie 5s (31 km)
- Meeker 5 W (33 km)
- Guthrie Muni Airport (35 km)
- Norman 2nw Mesonet (36 km)
- Guthrie 4wsw Mesonet (36 km)
- Shawnee 3nnw Mesonet (41 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.