Sykesville, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.5 °F (low) to 65.4 °F (high). Annual precipitation averages 47.4 Inches. Sykesville 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 | 24.1 °F | 41.6 °F | 3.45 in. |
| February | 25.6 °F | 44.8 °F | 2.89 in. |
| March | 32.4 °F | 53.4 °F | 4.18 in. |
| April | 42.4 °F | 65.9 °F | 3.72 in. |
| May | 52.1 °F | 74.9 °F | 4.42 in. |
| June | 61.0 °F | 83.3 °F | 4.36 in. |
| July | 65.6 °F | 87.5 °F | 4.3 in. |
| August | 63.9 °F | 85.4 °F | 4.06 in. |
| September | 57.2 °F | 78.9 °F | 4.55 in. |
| October | 45.4 °F | 67.2 °F | 4.13 in. |
| November | 35.8 °F | 55.7 °F | 3.32 in. |
| December | 28.7 °F | 45.6 °F | 3.97 in. |
| Annual | 44.5 °F | 65.4 °F | 47.35 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |