New Sharon, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.3 °C (low) to 15.4 °C (high). Annual precipitation averages 948.7 Millimeters. 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 | -10.7 °C | -1.2 °C | 27.94 mm |
| February | -8.6 °C | 1.4 °C | 36.07 mm |
| March | -2.7 °C | 8.7 °C | 53.85 mm |
| April | 3.7 °C | 16.1 °C | 97.03 mm |
| May | 10.5 °C | 21.8 °C | 126.75 mm |
| June | 16.3 °C | 27.3 °C | 134.62 mm |
| July | 18.1 °C | 29.3 °C | 109.47 mm |
| August | 16.8 °C | 28.2 °C | 110.49 mm |
| September | 11.8 °C | 24.7 °C | 90.93 mm |
| October | 5.1 °C | 17.6 °C | 69.85 mm |
| November | -1.6 °C | 8.9 °C | 54.1 mm |
| December | -7.4 °C | 1.8 °C | 37.59 mm |
| Annual | 4.3 °C | 15.4 °C | 948.69 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |