Raymond, South Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.4 °C (low) to 12.6 °C (high). Annual precipitation averages 579.4 Millimeters. Raymond is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -16.1 °C | -5.3 °C | 12.7 mm |
| February | -13.8 °C | -2.6 °C | 14.48 mm |
| March | -6.9 °C | 4.4 °C | 22.61 mm |
| April | -0.2 °C | 13 °C | 54.61 mm |
| May | 7.1 °C | 20 °C | 78.99 mm |
| June | 13.1 °C | 25.5 °C | 99.31 mm |
| July | 15.8 °C | 28.4 °C | 87.38 mm |
| August | 14.3 °C | 27.4 °C | 61.72 mm |
| September | 9.1 °C | 23.1 °C | 62.48 mm |
| October | 1.4 °C | 14.6 °C | 54.1 mm |
| November | -6.2 °C | 5.3 °C | 18.29 mm |
| December | -12.6 °C | -2.3 °C | 12.7 mm |
| Annual | 0.4 °C | 12.6 °C | 579.37 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |