Independence, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.9 °F (low) to 57.4 °F (high). Annual precipitation averages 37.2 Inches. Independence is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.1 °F | 26.4 °F | 1.07 in. |
| February | 13.0 °F | 30.6 °F | 1.16 in. |
| March | 24.8 °F | 43.9 °F | 1.95 in. |
| April | 36.0 °F | 58.7 °F | 3.62 in. |
| May | 48.2 °F | 70.5 °F | 4.63 in. |
| June | 58.8 °F | 79.9 °F | 6.06 in. |
| July | 61.9 °F | 83.0 °F | 4.46 in. |
| August | 59.1 °F | 81.1 °F | 4.28 in. |
| September | 50.5 °F | 75.1 °F | 3.64 in. |
| October | 38.5 °F | 61.8 °F | 2.76 in. |
| November | 26.6 °F | 45.4 °F | 2.07 in. |
| December | 15.8 °F | 32.1 °F | 1.49 in. |
| Annual | 36.9 °F | 57.4 °F | 37.19 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |