| 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 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Sep.1 - Sep. 10 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 17ab - Dry Gneissic-Schistose-Volcanic Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 59755 - Virginia City, MT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 15 | 22 | 28 | 37 | 43 | 49 | 48 | 39 | 31 | 20 | 13 | 30 |
| Avg Max Temp (°F) | 31 | 36 | 42 | 51 | 59 | 68 | 76 | 77 | 67 | 55 | 39 | 32 | 53 |
| Avg Precip (In.) | .67 | .55 | .98 | 1.4 | 2.55 | 2.42 | 1.64 | 1.45 | 1.27 | 1.09 | .86 | .63 | 15.51 |