| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Sep.11 - Sep. 20 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dsb - Humid Continental Climate - Dry Cool Summer | |
| Ecoregion: | 15s - Spokane Valley Outwash Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 83801 - Athol, ID | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 24 | 28 | 33 | 40 | 46 | 50 | 49 | 41 | 33 | 29 | 23 | 35 |
| Avg Max Temp (°F) | 34 | 40 | 47 | 57 | 66 | 73 | 80 | 81 | 70 | 56 | 42 | 35 | 57 |
| Avg Precip (In.) | 2.7 | 2.29 | 2.05 | 1.76 | 2.14 | 1.84 | 1.07 | 1.09 | 1.15 | 1.65 | 3.19 | 3.28 | 24.21 |