| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 29a - Cross Timbers |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74010 - Bristow, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 30 | 39 | 48 | 57 | 66 | 70 | 68 | 60 | 49 | 38 | 29 | 48 |
| Avg Max Temp (°F) | 49 | 55 | 64 | 73 | 80 | 87 | 93 | 93 | 85 | 75 | 61 | 51 | 72 |
| Avg Precip (In.) | 1.44 | 2.06 | 3.48 | 3.61 | 5.79 | 4.47 | 2.57 | 2.65 | 4.62 | 3.84 | 3.39 | 2.48 | 40.4 |