Collins, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12 °C (low) to 24.7 °C (high). Annual precipitation averages 1508.5 Millimeters. Collins is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.3 °C | 14.8 °C | 149.86 mm |
| February | 3.9 °C | 17.2 °C | 129.29 mm |
| March | 7.6 °C | 21.2 °C | 150.11 mm |
| April | 11.3 °C | 24.8 °C | 123.7 mm |
| May | 16.1 °C | 28.7 °C | 111 mm |
| June | 20.2 °C | 31.8 °C | 124.46 mm |
| July | 21.5 °C | 32.9 °C | 144.53 mm |
| August | 21.2 °C | 32.9 °C | 127.76 mm |
| September | 18.4 °C | 30.6 °C | 102.11 mm |
| October | 11.9 °C | 25.7 °C | 89.15 mm |
| November | 6.3 °C | 20.1 °C | 112.27 mm |
| December | 3.6 °C | 15.9 °C | 144.27 mm |
| Annual | 12 °C | 24.7 °C | 1508.51 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |