West Little River, Florida has a Tropical Monsoon climate (Köppen classification: Am). Average annual temperatures range from 69.8 °F (low) to 83.8 °F (high). Annual precipitation averages 64.9 Inches. West Little River is located in USDA Plant Hardiness Zone 11a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 59.7 °F | 76.0 °F | 2.32 in. |
| February | 61.9 °F | 77.8 °F | 2.47 in. |
| March | 64.6 °F | 79.9 °F | 2.65 in. |
| April | 68.7 °F | 83.1 °F | 3.27 in. |
| May | 72.7 °F | 86.0 °F | 5.66 in. |
| June | 75.7 °F | 88.6 °F | 9.37 in. |
| July | 76.9 °F | 90.0 °F | 7.84 in. |
| August | 77.1 °F | 90.4 °F | 8.6 in. |
| September | 76.3 °F | 88.8 °F | 9.19 in. |
| October | 73.3 °F | 85.8 °F | 7.66 in. |
| November | 67.4 °F | 81.0 °F | 3.27 in. |
| December | 63.0 °F | 77.9 °F | 2.57 in. |
| Annual | 69.8 °F | 83.8 °F | 64.87 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 11a : 40°F to 35°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Am - Tropical Monsoon |