New Sharon, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.7 °F (low) to 59.7 °F (high). Annual precipitation averages 37.4 Inches. New Sharon 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 | 12.8 °F | 29.8 °F | 1.1 in. |
| February | 16.5 °F | 34.5 °F | 1.42 in. |
| March | 27.2 °F | 47.6 °F | 2.12 in. |
| April | 38.6 °F | 61.0 °F | 3.82 in. |
| May | 50.9 °F | 71.3 °F | 4.99 in. |
| June | 61.3 °F | 81.1 °F | 5.3 in. |
| July | 64.6 °F | 84.8 °F | 4.31 in. |
| August | 62.2 °F | 82.8 °F | 4.35 in. |
| September | 53.2 °F | 76.4 °F | 3.58 in. |
| October | 41.1 °F | 63.7 °F | 2.75 in. |
| November | 29.2 °F | 48.0 °F | 2.13 in. |
| December | 18.7 °F | 35.3 °F | 1.48 in. |
| Annual | 39.7 °F | 59.7 °F | 37.35 in. |
| 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 5b : -15°F to -10°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 |