Fairview Park, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.4 °F (low) to 63.8 °F (high). Annual precipitation averages 42.9 Inches. Fairview Park 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 | 19.9 °F | 36.0 °F | 2.93 in. |
| February | 23.0 °F | 40.9 °F | 2.57 in. |
| March | 32.4 °F | 52.1 °F | 3.31 in. |
| April | 42.8 °F | 64.9 °F | 4.62 in. |
| May | 53.6 °F | 75.3 °F | 4.43 in. |
| June | 62.5 °F | 83.7 °F | 4.87 in. |
| July | 65.4 °F | 86.3 °F | 4.22 in. |
| August | 63.0 °F | 85.1 °F | 3.1 in. |
| September | 55.1 °F | 79.8 °F | 3.05 in. |
| October | 44.1 °F | 67.7 °F | 3.72 in. |
| November | 33.6 °F | 52.7 °F | 3.28 in. |
| December | 25.2 °F | 40.7 °F | 2.83 in. |
| Annual | 43.4 °F | 63.8 °F | 42.93 in. |
| 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 |