| 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. 11 - Oct. 20 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 66a - Northern Igneous Ridges | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 21780 - Sabillasville, MD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 24 | 31 | 40 | 51 | 59 | 64 | 63 | 56 | 45 | 36 | 26 | 43 |
| Avg Max Temp (°F) | 37 | 40 | 50 | 62 | 71 | 79 | 82 | 81 | 74 | 63 | 51 | 41 | 61 |
| Avg Precip (In.) | 3.5 | 2.9 | 3.89 | 3.78 | 4.61 | 4.44 | 3.62 | 3.47 | 4.28 | 3.62 | 3.72 | 3.28 | 45.12 |