Clear Spring, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.5 °F (low) to 64.6 °F (high). Annual precipitation averages 42.8 Inches. Clear Spring is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.3 °F | 40.5 °F | 2.98 in. |
| February | 24.7 °F | 44.0 °F | 2.41 in. |
| March | 31.7 °F | 52.7 °F | 3.63 in. |
| April | 41.7 °F | 65.0 °F | 3.7 in. |
| May | 51.2 °F | 73.9 °F | 4.35 in. |
| June | 60.0 °F | 82.4 °F | 4.21 in. |
| July | 64.5 °F | 87.0 °F | 3.77 in. |
| August | 62.7 °F | 85.1 °F | 3.76 in. |
| September | 55.7 °F | 78.4 °F | 4.12 in. |
| October | 44.3 °F | 66.6 °F | 3.52 in. |
| November | 34.6 °F | 55.0 °F | 2.95 in. |
| December | 27.3 °F | 44.1 °F | 3.39 in. |
| Annual | 43.5 °F | 64.6 °F | 42.79 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |