Blandburg, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.7 °F (low) to 56.2 °F (high). Annual precipitation averages 45.6 Inches. Blandburg is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.6 °F | 30.9 °F | 3.21 in. |
| February | 16.6 °F | 33.8 °F | 2.41 in. |
| March | 23.7 °F | 42.6 °F | 3.42 in. |
| April | 34.3 °F | 57.1 °F | 3.98 in. |
| May | 44.9 °F | 67.4 °F | 4.33 in. |
| June | 53.4 °F | 75.1 °F | 4.56 in. |
| July | 57.4 °F | 78.9 °F | 4.48 in. |
| August | 55.5 °F | 77.6 °F | 4.26 in. |
| September | 49.1 °F | 71.0 °F | 4.25 in. |
| October | 38.9 °F | 59.2 °F | 3.8 in. |
| November | 29.4 °F | 46.0 °F | 3.44 in. |
| December | 21.3 °F | 35.1 °F | 3.5 in. |
| Annual | 36.7 °F | 56.2 °F | 45.64 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |