Stockport, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.2 °C (low) to 16.4 °C (high). Annual precipitation averages 968.2 Millimeters. Stockport is located in USDA Plant Hardiness Zone 5b. 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 | -9.2 °C | 0.2 °C | 37.08 mm |
| February | -7.3 °C | 2.7 °C | 44.7 mm |
| March | -1.4 °C | 9.9 °C | 59.44 mm |
| April | 4.7 °C | 17.2 °C | 94.74 mm |
| May | 11.1 °C | 22.8 °C | 134.87 mm |
| June | 16.6 °C | 27.9 °C | 125.73 mm |
| July | 18.6 °C | 30 °C | 104.9 mm |
| August | 17.3 °C | 29.2 °C | 96.77 mm |
| September | 12.4 °C | 25.4 °C | 92.71 mm |
| October | 6.1 °C | 18.3 °C | 75.18 mm |
| November | -0.3 °C | 9.9 °C | 57.91 mm |
| December | -5.9 °C | 3 °C | 44.2 mm |
| Annual | 5.2 °C | 16.4 °C | 968.23 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |