| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5a: -20°F to -15°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: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 80b - Semiarid Hills and Low Mountains |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 83246 - Lava Hot Springs, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 16 | 21 | 28 | 36 | 43 | 49 | 49 | 40 | 31 | 23 | 14 | 30 |
| Avg Max Temp (°F) | 30 | 35 | 43 | 52 | 62 | 72 | 82 | 82 | 71 | 59 | 42 | 31 | 55 |
| Avg Precip (In.) | 1.39 | 1.18 | 1.47 | 1.28 | 1.92 | 1.18 | .94 | 1.18 | 1.11 | 1.15 | 1.21 | 1.28 | 15.28 |