Florence, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 44.4 °F (low) to 59.2 °F (high). Annual precipitation averages 72.5 Inches. Florence is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.6 °F | 51.7 °F | 11.29 in. |
| February | 39.0 °F | 53.4 °F | 8.13 in. |
| March | 39.9 °F | 54.5 °F | 8.8 in. |
| April | 41.9 °F | 56.4 °F | 6.21 in. |
| May | 45.5 °F | 61.0 °F | 3.83 in. |
| June | 48.8 °F | 63.9 °F | 2.47 in. |
| July | 51.2 °F | 68.1 °F | 0.59 in. |
| August | 51.2 °F | 66.8 °F | 0.88 in. |
| September | 49.4 °F | 67.0 °F | 1.99 in. |
| October | 45.8 °F | 61.4 °F | 5.59 in. |
| November | 42.0 °F | 55.3 °F | 10.17 in. |
| December | 38.9 °F | 50.7 °F | 12.53 in. |
| Annual | 44.4 °F | 59.2 °F | 72.48 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |