Tupelo, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.8 °F (low) to 73.1 °F (high). Annual precipitation averages 43.1 Inches. Tupelo is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.3 °F | 51.7 °F | 2.25 in. |
| February | 32.0 °F | 55.7 °F | 2.41 in. |
| March | 40.3 °F | 64.2 °F | 3.51 in. |
| April | 48.4 °F | 72.6 °F | 4.22 in. |
| May | 58.5 °F | 79.4 °F | 5.8 in. |
| June | 67.2 °F | 87.7 °F | 4.6 in. |
| July | 70.8 °F | 93.1 °F | 3.56 in. |
| August | 69.6 °F | 93.7 °F | 2.75 in. |
| September | 62.0 °F | 86.6 °F | 3.87 in. |
| October | 50.3 °F | 75.3 °F | 4.36 in. |
| November | 39.6 °F | 64.1 °F | 2.88 in. |
| December | 30.6 °F | 53.5 °F | 2.91 in. |
| Annual | 49.8 °F | 73.1 °F | 43.12 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |