North Pekin, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.7 °C (low) to 17 °C (high). Annual precipitation averages 981.5 Millimeters. North Pekin is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.1 °C | 1 °C | 53.85 mm |
| February | -6.3 °C | 3.6 °C | 51.05 mm |
| March | -0.8 °C | 10.4 °C | 65.28 mm |
| April | 5.2 °C | 17.5 °C | 98.04 mm |
| May | 11.6 °C | 23.3 °C | 123.44 mm |
| June | 16.8 °C | 28.3 °C | 114.81 mm |
| July | 18.6 °C | 30.1 °C | 99.82 mm |
| August | 17.3 °C | 29.4 °C | 86.36 mm |
| September | 12.7 °C | 26.2 °C | 86.11 mm |
| October | 5.9 °C | 19.1 °C | 80.01 mm |
| November | 0.1 °C | 10.8 °C | 69.34 mm |
| December | -4.9 °C | 3.9 °C | 53.34 mm |
| Annual | 5.7 °C | 17 °C | 981.45 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°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 |