| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 39a - Springfield Plateau |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74451 - Park Hill, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 31 | 39 | 48 | 57 | 65 | 70 | 68 | 61 | 50 | 39 | 29 | 49 |
| Avg Max Temp (°F) | 47 | 54 | 63 | 72 | 79 | 86 | 92 | 92 | 84 | 74 | 60 | 51 | 71 |
| Avg Precip (In.) | 2.33 | 2.41 | 4.16 | 4.21 | 5.61 | 5.05 | 3.29 | 3.2 | 5.22 | 4.26 | 4.54 | 3.21 | 47.49 |