| 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 | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Nov. 11 - Nov. 20 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| 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 20653 - Lexington Park, MD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 29 | 37 | 45 | 55 | 64 | 69 | 68 | 62 | 50 | 41 | 32 | 48 |
| Avg Max Temp (°F) | 44 | 47 | 56 | 66 | 75 | 83 | 87 | 86 | 80 | 68 | 59 | 49 | 67 |
| Avg Precip (In.) | 3.76 | 3.1 | 4.25 | 3.24 | 4.18 | 3.63 | 4.3 | 4.05 | 4.09 | 3.39 | 3.27 | 3.31 | 44.56 |