Broughton, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.3 °F (low) to 60.1 °F (high). Annual precipitation averages 37.5 Inches. Broughton is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.3 °F | 32.4 °F | 2.35 in. |
| February | 19.1 °F | 35.8 °F | 2.11 in. |
| March | 27.6 °F | 46.6 °F | 2.56 in. |
| April | 37.6 °F | 60.1 °F | 3.55 in. |
| May | 49.4 °F | 71.7 °F | 4.43 in. |
| June | 59.5 °F | 80.7 °F | 4.08 in. |
| July | 62.6 °F | 84.4 °F | 3.85 in. |
| August | 60.4 °F | 82.4 °F | 3.58 in. |
| September | 53.0 °F | 76.8 °F | 3.04 in. |
| October | 42.1 °F | 63.9 °F | 2.76 in. |
| November | 31.9 °F | 49.3 °F | 2.82 in. |
| December | 23.3 °F | 37.4 °F | 2.32 in. |
| Annual | 40.3 °F | 60.1 °F | 37.45 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |