Adin, California has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 33.5 °F (low) to 63.5 °F (high). Annual precipitation averages 15.5 Inches. Adin 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 Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.3 °F | 44.1 °F | 2.23 in. |
| February | 24.1 °F | 47.4 °F | 1.55 in. |
| March | 27.4 °F | 52.7 °F | 1.82 in. |
| April | 31.0 °F | 58.1 °F | 1.59 in. |
| May | 37.3 °F | 67.6 °F | 1.78 in. |
| June | 42.9 °F | 77.1 °F | 0.78 in. |
| July | 48.9 °F | 87.3 °F | 0.26 in. |
| August | 46.9 °F | 86.1 °F | 0.19 in. |
| September | 40.4 °F | 79.8 °F | 0.37 in. |
| October | 32.7 °F | 66.6 °F | 1.02 in. |
| November | 26.2 °F | 52.0 °F | 1.58 in. |
| December | 21.3 °F | 42.6 °F | 2.28 in. |
| Annual | 33.5 °F | 63.5 °F | 15.45 in. |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |