| 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: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 40b - Osage Cuestas |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74055 - Owasso, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 30 | 39 | 49 | 58 | 67 | 72 | 70 | 62 | 50 | 39 | 29 | 49 |
| Avg Max Temp (°F) | 46 | 53 | 62 | 72 | 79 | 87 | 93 | 93 | 84 | 74 | 60 | 49 | 71 |
| Avg Precip (In.) | 1.59 | 1.96 | 3.57 | 3.91 | 5.76 | 4.7 | 3.04 | 2.92 | 4.78 | 3.87 | 3.56 | 2.36 | 42.01 |