Brady, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 42.4 °F (low) to 60.4 °F (high). Annual precipitation averages 76.4 Inches. Brady is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.0 °F | 47.6 °F | 11.72 in. |
| February | 35.1 °F | 50.4 °F | 7.05 in. |
| March | 36.9 °F | 54.3 °F | 8.48 in. |
| April | 39.5 °F | 58.2 °F | 5.73 in. |
| May | 44.6 °F | 64.2 °F | 3.16 in. |
| June | 48.7 °F | 67.9 °F | 2.29 in. |
| July | 52.1 °F | 73.4 °F | 0.85 in. |
| August | 52.0 °F | 78.1 °F | 1.4 in. |
| September | 48.5 °F | 71.2 °F | 3.11 in. |
| October | 42.8 °F | 61.0 °F | 7.86 in. |
| November | 37.9 °F | 52.1 °F | 12.82 in. |
| December | 35.1 °F | 46.6 °F | 11.96 in. |
| Annual | 42.4 °F | 60.4 °F | 76.43 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |