Lima, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42 °F (low) to 60.3 °F (high). Annual precipitation averages 39.9 Inches. Lima 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.1 °F | 33.3 °F | 2.86 in. |
| February | 20.9 °F | 36.6 °F | 2.44 in. |
| March | 29.2 °F | 47.1 °F | 2.95 in. |
| April | 39.8 °F | 60.6 °F | 3.87 in. |
| May | 51.2 °F | 71.4 °F | 4.2 in. |
| June | 60.8 °F | 80.2 °F | 4.3 in. |
| July | 63.8 °F | 83.4 °F | 4.12 in. |
| August | 61.9 °F | 81.9 °F | 3.42 in. |
| September | 54.8 °F | 76.6 °F | 3.16 in. |
| October | 43.8 °F | 64.0 °F | 2.93 in. |
| November | 33.5 °F | 49.9 °F | 3.06 in. |
| December | 24.9 °F | 38.3 °F | 2.6 in. |
| Annual | 42 °F | 60.3 °F | 39.91 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 |