Toledo, Washington has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 5.8 °C (low) to 16.8 °C (high). Annual precipitation averages 1238.8 Millimeters. Toledo is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.7 °C | 8.1 °C | 177.04 mm |
| February | 1.3 °C | 10.2 °C | 125.73 mm |
| March | 2.7 °C | 12.8 °C | 132.84 mm |
| April | 4.3 °C | 16 °C | 100.08 mm |
| May | 7.2 °C | 19.9 °C | 65.79 mm |
| June | 9.5 °C | 22.4 °C | 47.75 mm |
| July | 11.4 °C | 26.1 °C | 13.72 mm |
| August | 11.4 °C | 26.8 °C | 19.3 mm |
| September | 9.2 °C | 23.7 °C | 41.4 mm |
| October | 6.1 °C | 17.1 °C | 116.59 mm |
| November | 3.3 °C | 11 °C | 201.42 mm |
| December | 1.4 °C | 7.6 °C | 197.1 mm |
| Annual | 5.8 °C | 16.8 °C | 1238.76 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |