| 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. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 63f - Delmarva Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 21673 - Trappe, MD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 29 | 36 | 44 | 54 | 63 | 67 | 66 | 59 | 48 | 39 | 31 | 47 |
| Avg Max Temp (°F) | 44 | 48 | 56 | 67 | 76 | 84 | 88 | 86 | 80 | 70 | 59 | 49 | 67 |
| Avg Precip (In.) | 4.04 | 3.18 | 4.35 | 3.34 | 4.15 | 3.41 | 4.23 | 4.37 | 3.95 | 3.26 | 3.37 | 3.6 | 45.27 |