Alba, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.9 °F (low) to 57 °F (high). Annual precipitation averages 39.3 Inches. Alba 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.4 °F | 32.1 °F | 2.68 in. |
| February | 15.1 °F | 34.6 °F | 2.02 in. |
| March | 22.3 °F | 43.0 °F | 2.92 in. |
| April | 32.9 °F | 56.2 °F | 3.37 in. |
| May | 43.8 °F | 67.8 °F | 3.46 in. |
| June | 52.8 °F | 75.6 °F | 3.95 in. |
| July | 57.1 °F | 80.1 °F | 3.71 in. |
| August | 55.7 °F | 78.6 °F | 3.59 in. |
| September | 48.4 °F | 71.9 °F | 4.25 in. |
| October | 38.1 °F | 59.5 °F | 3.73 in. |
| November | 29.2 °F | 47.4 °F | 2.89 in. |
| December | 21.4 °F | 36.9 °F | 2.72 in. |
| Annual | 35.9 °F | 57 °F | 39.29 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 |