| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F | |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 42f - Southern Missouri Coteau Slope | |
| Current Drought Status: | Abnormally Dry | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 57564 - Onida, SD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 11 | 21 | 32 | 44 | 54 | 59 | 57 | 47 | 35 | 20 | 9 | 33 |
| Avg Max Temp (°F) | 25 | 32 | 43 | 58 | 70 | 80 | 87 | 86 | 76 | 61 | 41 | 28 | 57 |
| Avg Precip (In.) | .51 | .59 | 1.32 | 1.93 | 2.87 | 3.11 | 2.71 | 2.11 | 1.47 | 1.56 | .76 | .5 | 19.46 |