Raymond, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.5 °C (low) to 17.6 °C (high). Annual precipitation averages 1026.7 Millimeters. Raymond is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.7 °C | 2.1 °C | 61.98 mm |
| February | -4.7 °C | 5 °C | 53.09 mm |
| March | 0.3 °C | 11.2 °C | 73.66 mm |
| April | 6.1 °C | 18.3 °C | 113.79 mm |
| May | 12.2 °C | 23.8 °C | 122.94 mm |
| June | 17.2 °C | 28.6 °C | 112.27 mm |
| July | 18.9 °C | 30.2 °C | 95.5 mm |
| August | 17.7 °C | 29.7 °C | 83.57 mm |
| September | 13.1 °C | 26.7 °C | 81.28 mm |
| October | 6.8 °C | 19.8 °C | 83.31 mm |
| November | 1.2 °C | 11.4 °C | 84.07 mm |
| December | -3.7 °C | 4.8 °C | 61.21 mm |
| Annual | 6.5 °C | 17.6 °C | 1026.67 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |