| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| 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: | 67c - Northern Sandstone Ridges | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 21502 - Cumberland, MD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 30 | 38 | 47 | 56 | 60 | 59 | 52 | 40 | 32 | 25 | 40 |
| Avg Max Temp (°F) | 39 | 43 | 52 | 64 | 74 | 82 | 86 | 83 | 77 | 66 | 53 | 42 | 63 |
| Avg Precip (In.) | 2.86 | 2.43 | 3.31 | 3.21 | 3.96 | 3.24 | 3.53 | 3.51 | 3.24 | 2.72 | 2.92 | 2.64 | 37.56 |