| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F 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: | 65n - Chesapeake Rolling Coastal Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 20650 - Leonardtown, MD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 28 | 35 | 43 | 53 | 61 | 66 | 65 | 58 | 47 | 38 | 31 | 46 |
| Avg Max Temp (°F) | 46 | 49 | 58 | 68 | 76 | 84 | 88 | 86 | 80 | 69 | 59 | 50 | 68 |
| Avg Precip (In.) | 3.74 | 3.1 | 4.25 | 3.27 | 4.27 | 3.84 | 4.36 | 3.94 | 4.18 | 3.54 | 3.32 | 3.31 | 45.13 |