| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| 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 74804 - Shawnee, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 30 | 38 | 48 | 58 | 66 | 70 | 68 | 61 | 50 | 38 | 29 | 48 |
| Avg Max Temp (°F) | 49 | 56 | 64 | 73 | 80 | 87 | 94 | 94 | 86 | 76 | 62 | 52 | 73 |
| Avg Precip (In.) | 1.46 | 2.09 | 3.43 | 3.7 | 5.89 | 4.74 | 2.35 | 2.32 | 4.16 | 4.26 | 3.17 | 2.25 | 39.81 |