Bladensburg, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 19.4 °C (high). Annual precipitation averages 1152.9 Millimeters. Bladensburg is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.5 °C | 6.7 °C | 78.49 mm |
| February | -1.8 °C | 8.4 °C | 68.33 mm |
| March | 2.1 °C | 12.8 °C | 99.82 mm |
| April | 7.6 °C | 19.4 °C | 86.61 mm |
| May | 13 °C | 24.1 °C | 113.54 mm |
| June | 18.2 °C | 28.9 °C | 117.35 mm |
| July | 20.8 °C | 31.5 °C | 115.57 mm |
| August | 19.9 °C | 30.4 °C | 93.73 mm |
| September | 16.1 °C | 26.8 °C | 111.25 mm |
| October | 9.4 °C | 20.3 °C | 96.01 mm |
| November | 3.6 °C | 14.2 °C | 77.98 mm |
| December | -0.2 °C | 8.8 °C | 94.23 mm |
| Annual | 8.9 °C | 19.4 °C | 1152.91 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |