| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F | |
| Average First Frost Date: | Nov. 11 - Nov. 20 | |
| Average Last Frost Date: | Mar. 21 - Mar. 31 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 73a - Northern Holocene Meander Belts | |
| Current Drought Status: | Extreme Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 38645 - Lyon, MS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 35 | 43 | 51 | 61 | 68 | 72 | 70 | 63 | 51 | 42 | 35 | 52 |
| Avg Max Temp (°F) | 49 | 55 | 64 | 73 | 81 | 89 | 92 | 91 | 85 | 75 | 62 | 52 | 72 |
| Avg Precip (In.) | 4.92 | 4.54 | 5.53 | 5.19 | 5.43 | 4.95 | 3.97 | 2.72 | 3.02 | 3.23 | 5.39 | 5.45 | 54.34 |