Chance, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.3 °F (low) to 65.7 °F (high). Annual precipitation averages 45.8 Inches. Chance is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.6 °F | 44.5 °F | 3.31 in. |
| February | 31.7 °F | 46.6 °F | 2.93 in. |
| March | 38.2 °F | 53.7 °F | 4.12 in. |
| April | 48.3 °F | 64.9 °F | 3.44 in. |
| May | 58.1 °F | 73.1 °F | 3.67 in. |
| June | 67.4 °F | 81.5 °F | 4.06 in. |
| July | 72.5 °F | 86.0 °F | 4.43 in. |
| August | 71.0 °F | 84.1 °F | 4.72 in. |
| September | 65.1 °F | 78.8 °F | 4.29 in. |
| October | 53.9 °F | 68.3 °F | 4.05 in. |
| November | 42.9 °F | 57.5 °F | 3.14 in. |
| December | 35.5 °F | 49.2 °F | 3.66 in. |
| Annual | 51.3 °F | 65.7 °F | 45.82 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |