Fallon, Nevada has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 37.2 °F (low) to 69 °F (high). Annual precipitation averages 5.2 Inches. Fallon is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.5 °F | 46.1 °F | 0.71 in. |
| February | 24.7 °F | 51.6 °F | 0.61 in. |
| March | 29.8 °F | 60.1 °F | 0.51 in. |
| April | 34.8 °F | 65.8 °F | 0.47 in. |
| May | 43.2 °F | 74.7 °F | 0.67 in. |
| June | 50.4 °F | 85.2 °F | 0.44 in. |
| July | 57.6 °F | 94.8 °F | 0.09 in. |
| August | 55.1 °F | 93.0 °F | 0.08 in. |
| September | 46.8 °F | 84.4 °F | 0.16 in. |
| October | 36.1 °F | 70.6 °F | 0.4 in. |
| November | 26.5 °F | 56.1 °F | 0.63 in. |
| December | 20.3 °F | 45.1 °F | 0.46 in. |
| Annual | 37.2 °F | 69 °F | 5.23 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BWk - Cold Desert Climate |