Springport, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.1 °C (low) to 16.2 °C (high). Annual precipitation averages 1102.4 Millimeters. Springport is located in USDA Plant Hardiness Zone 6a. 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 | -7.6 °C | 1.2 °C | 74.93 mm |
| February | -6.3 °C | 3.4 °C | 61.47 mm |
| March | -1.4 °C | 9.3 °C | 86.36 mm |
| April | 4.3 °C | 16.6 °C | 108.46 mm |
| May | 10.5 °C | 22.4 °C | 118.11 mm |
| June | 15.7 °C | 27.2 °C | 128.52 mm |
| July | 17 °C | 28.8 °C | 110.74 mm |
| August | 15.9 °C | 28.1 °C | 89.66 mm |
| September | 11.8 °C | 25.2 °C | 81.03 mm |
| October | 5.8 °C | 18.3 °C | 80.77 mm |
| November | 0.2 °C | 10.4 °C | 86.61 mm |
| December | -4.4 °C | 3.8 °C | 75.69 mm |
| Annual | 5.1 °C | 16.2 °C | 1102.35 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |