Blue Jay, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.2 °F (low) to 64.2 °F (high). Annual precipitation averages 45.9 Inches. Blue Jay is located in USDA Plant Hardiness Zone 6b. 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 | 22.6 °F | 38.9 °F | 3.45 in. |
| February | 24.5 °F | 42.9 °F | 2.78 in. |
| March | 32.7 °F | 52.8 °F | 4.06 in. |
| April | 43.0 °F | 65.4 °F | 4.6 in. |
| May | 53.1 °F | 74.3 °F | 5.05 in. |
| June | 62.1 °F | 82.4 °F | 4.93 in. |
| July | 65.3 °F | 85.6 °F | 4.13 in. |
| August | 63.8 °F | 85.2 °F | 3.28 in. |
| September | 56.2 °F | 78.9 °F | 3.29 in. |
| October | 44.7 °F | 67.0 °F | 3.27 in. |
| November | 34.4 °F | 53.7 °F | 3.4 in. |
| December | 27.4 °F | 43.0 °F | 3.66 in. |
| Annual | 44.2 °F | 64.2 °F | 45.9 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 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 |