| 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 7a: 0F to 5F |
| 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: | 27h - Red Prairie |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 73554 - Mangum, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 28 | 36 | 45 | 56 | 65 | 69 | 67 | 60 | 48 | 35 | 26 | 46 |
| Avg Max Temp (°F) | 50 | 57 | 65 | 75 | 82 | 91 | 96 | 95 | 87 | 76 | 62 | 52 | 74 |
| Avg Precip (In.) | .89 | 1.16 | 1.78 | 2.28 | 4.64 | 4.1 | 2.16 | 2.69 | 3.14 | 2.7 | 1.4 | 1.07 | 28 |