Arvada, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 32.1 °F (low) to 61.2 °F (high). Annual precipitation averages 12.9 Inches. Arvada is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.8 °F | 34.8 °F | 0.43 in. |
| February | 13.2 °F | 38.7 °F | 0.5 in. |
| March | 23.1 °F | 50.1 °F | 0.85 in. |
| April | 31.4 °F | 59.2 °F | 1.32 in. |
| May | 40.4 °F | 68.6 °F | 2.47 in. |
| June | 49.9 °F | 80.1 °F | 2.15 in. |
| July | 55.7 °F | 90.3 °F | 1.27 in. |
| August | 53.7 °F | 89.2 °F | 0.81 in. |
| September | 44.1 °F | 78.6 °F | 1.04 in. |
| October | 31.3 °F | 62.4 °F | 1.12 in. |
| November | 20.9 °F | 46.8 °F | 0.43 in. |
| December | 11.3 °F | 35.6 °F | 0.46 in. |
| Annual | 32.1 °F | 61.2 °F | 12.85 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |