| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 17a - Black Hills Plateau | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 57747 - Hot Springs, SD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 15 | 22 | 31 | 41 | 50 | 56 | 54 | 43 | 32 | 21 | 13 | 32 |
| Avg Max Temp (°F) | 38 | 43 | 51 | 61 | 70 | 81 | 88 | 87 | 78 | 65 | 47 | 39 | 62 |
| Avg Precip (In.) | .37 | .46 | .93 | 1.94 | 3.07 | 2.85 | 2.57 | 1.76 | 1.34 | 1.27 | .55 | .36 | 17.47 |