| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F 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: | 27d - Wellington-McPherson Lowland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74647 - Newkirk, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 26 | 35 | 45 | 56 | 65 | 70 | 68 | 60 | 48 | 35 | 25 | 46 |
| Avg Max Temp (°F) | 43 | 50 | 59 | 69 | 77 | 87 | 93 | 92 | 83 | 72 | 57 | 46 | 69 |
| Avg Precip (In.) | 1.02 | 1.37 | 2.84 | 3.65 | 5.01 | 4.82 | 3.66 | 3.31 | 3.87 | 3.36 | 2.76 | 1.69 | 37.36 |