| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F | |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 47a - Loess Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 57022 - Dell Rapids, SD | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 2 | 9 | 21 | 33 | 46 | 56 | 61 | 58 | 48 | 35 | 21 | 8 | 33 |
| Avg Max Temp (°F) | 23 | 30 | 42 | 57 | 70 | 79 | 84 | 82 | 73 | 60 | 41 | 27 | 56 |
| Avg Precip (In.) | .51 | .54 | 1.64 | 2.47 | 3.19 | 3.85 | 3.23 | 3.13 | 2.53 | 1.96 | 1.31 | .53 | 24.89 |