Lafayette, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.2 °F (low) to 61.6 °F (high). Annual precipitation averages 41.4 Inches. Lafayette 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.0 °F | 33.2 °F | 2.8 in. |
| February | 20.8 °F | 36.5 °F | 2.33 in. |
| March | 29.2 °F | 46.9 °F | 2.86 in. |
| April | 39.8 °F | 60.5 °F | 3.84 in. |
| May | 51.2 °F | 71.2 °F | 4.13 in. |
| June | 60.7 °F | 80.0 °F | 4.28 in. |
| July | 63.6 °F | 83.2 °F | 4.02 in. |
| August | 61.8 °F | 81.6 °F | 3.46 in. |
| September | 54.6 °F | 76.2 °F | 3.09 in. |
| October | 43.6 °F | 63.7 °F | 2.84 in. |
| November | 33.2 °F | 49.7 °F | 2.99 in. |
| December | 24.7 °F | 38.2 °F | 2.62 in. |
| Annual | 41.9 °F | 60.1 °F | 39.26 in. |
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.1 °F | 35.1 °F | 3.05 in. |
| February | 22.1 °F | 38.8 °F | 2.42 in. |
| March | 30.2 °F | 49.3 °F | 3.25 in. |
| April | 40.4 °F | 62.1 °F | 4.01 in. |
| May | 51.6 °F | 72.9 °F | 4.65 in. |
| June | 60.6 °F | 81.0 °F | 4.45 in. |
| July | 63.7 °F | 83.6 °F | 4.54 in. |
| August | 61.4 °F | 82.5 °F | 3.32 in. |
| September | 54.4 °F | 77.5 °F | 3.07 in. |
| October | 43.0 °F | 65.0 °F | 2.66 in. |
| November | 32.8 °F | 51.1 °F | 3.03 in. |
| December | 25.7 °F | 39.8 °F | 2.97 in. |
| Annual | 42.2 °F | 61.6 °F | 41.42 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 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 |
| 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 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 |