Orwigsburg, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.8 °F (low) to 61.9 °F (high). Annual precipitation averages 51.5 Inches. Orwigsburg 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.0 °F | 37.3 °F | 3.73 in. |
| February | 20.1 °F | 40.1 °F | 2.83 in. |
| March | 27.8 °F | 48.5 °F | 3.98 in. |
| April | 37.6 °F | 61.6 °F | 4.16 in. |
| May | 47.5 °F | 71.7 °F | 4.15 in. |
| June | 56.8 °F | 80.1 °F | 5.2 in. |
| July | 61.2 °F | 84.8 °F | 5.07 in. |
| August | 59.4 °F | 83.2 °F | 4.59 in. |
| September | 52.1 °F | 76.4 °F | 5.27 in. |
| October | 40.5 °F | 64.7 °F | 4.64 in. |
| November | 31.5 °F | 52.4 °F | 3.66 in. |
| December | 24.5 °F | 42.0 °F | 4.18 in. |
| Annual | 39.8 °F | 61.9 °F | 51.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |