Phillipsburg, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.1 °F (low) to 61.5 °F (high). Annual precipitation averages 41.2 Inches. Phillipsburg is located in USDA Plant Hardiness Zone 6a. 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 | 19.6 °F | 35.3 °F | 3.03 in. |
| February | 21.8 °F | 39.1 °F | 2.31 in. |
| March | 30.1 °F | 49.4 °F | 3.31 in. |
| April | 40.6 °F | 62.1 °F | 4.23 in. |
| May | 51.8 °F | 72.2 °F | 4.52 in. |
| June | 60.7 °F | 80.7 °F | 4.48 in. |
| July | 63.7 °F | 83.7 °F | 4.12 in. |
| August | 61.8 °F | 82.8 °F | 3.07 in. |
| September | 54.3 °F | 77.0 °F | 3.09 in. |
| October | 42.9 °F | 64.7 °F | 2.91 in. |
| November | 32.8 °F | 51.1 °F | 3.07 in. |
| December | 24.8 °F | 39.7 °F | 3.09 in. |
| Annual | 42.1 °F | 61.5 °F | 41.23 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |