New Pekin, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.7 °F (low) to 65.9 °F (high). Annual precipitation averages 49 Inches. New Pekin is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.5 °F | 40.7 °F | 3.72 in. |
| February | 26.1 °F | 45.7 °F | 3.28 in. |
| March | 33.6 °F | 55.5 °F | 4.44 in. |
| April | 43.5 °F | 67.3 °F | 5.11 in. |
| May | 53.9 °F | 76.0 °F | 5.27 in. |
| June | 62.3 °F | 83.4 °F | 4.79 in. |
| July | 65.8 °F | 86.5 °F | 4.14 in. |
| August | 64.2 °F | 86.0 °F | 3.37 in. |
| September | 56.5 °F | 80.3 °F | 3.64 in. |
| October | 44.7 °F | 69.2 °F | 3.5 in. |
| November | 34.9 °F | 55.7 °F | 3.69 in. |
| December | 27.8 °F | 44.7 °F | 4.01 in. |
| Annual | 44.7 °F | 65.9 °F | 48.96 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |