Belvidere, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.9 °C (low) to 16.1 °C (high). Annual precipitation averages 497.1 Millimeters. Belvidere is located in USDA Plant Hardiness Zone 5a. 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 | -11.2 °C | 1.2 °C | 11.94 mm |
| February | -9.8 °C | 3.4 °C | 16.26 mm |
| March | -4.8 °C | 9.3 °C | 28.45 mm |
| April | 0.4 °C | 15.1 °C | 53.34 mm |
| May | 6.8 °C | 20.9 °C | 84.33 mm |
| June | 12.6 °C | 26.8 °C | 86.11 mm |
| July | 16.3 °C | 31.4 °C | 63.25 mm |
| August | 15 °C | 30.9 °C | 48.77 mm |
| September | 9.6 °C | 26.1 °C | 35.56 mm |
| October | 2.2 °C | 17.2 °C | 40.64 mm |
| November | -4.8 °C | 8.8 °C | 14.73 mm |
| December | -9.9 °C | 2.3 °C | 13.72 mm |
| Annual | 1.9 °C | 16.1 °C | 497.1 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |