Lower Salem, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.9 °F (low) to 64.1 °F (high). Annual precipitation averages 44.2 Inches. Lower Salem is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.2 °F | 39.3 °F | 3.32 in. |
| February | 23.0 °F | 42.8 °F | 2.95 in. |
| March | 29.8 °F | 52.4 °F | 3.9 in. |
| April | 39.9 °F | 66.1 °F | 3.81 in. |
| May | 50.1 °F | 74.3 °F | 4.43 in. |
| June | 59.2 °F | 82.0 °F | 4.7 in. |
| July | 63.3 °F | 85.3 °F | 4.65 in. |
| August | 61.6 °F | 84.5 °F | 3.69 in. |
| September | 54.1 °F | 78.5 °F | 3.47 in. |
| October | 42.1 °F | 66.7 °F | 2.93 in. |
| November | 32.2 °F | 54.2 °F | 3.01 in. |
| December | 26.3 °F | 43.6 °F | 3.34 in. |
| Annual | 41.9 °F | 64.1 °F | 44.2 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°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 |