| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 64a - Triassic Lowlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 21727 - Emmitsburg, MD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 24 | 32 | 40 | 50 | 59 | 64 | 62 | 55 | 43 | 35 | 27 | 43 |
| Avg Max Temp (°F) | 39 | 43 | 52 | 64 | 74 | 81 | 85 | 83 | 76 | 66 | 54 | 44 | 63 |
| Avg Precip (In.) | 3.59 | 2.92 | 3.92 | 3.74 | 4.48 | 4.29 | 3.61 | 3.53 | 4.21 | 3.46 | 3.73 | 3.29 | 44.74 |