Rayne, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.6 °C (low) to 25.6 °C (high). Annual precipitation averages 1599.9 Millimeters. Rayne is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.3 °C | 16.2 °C | 160.53 mm |
| February | 7.2 °C | 18.3 °C | 109.73 mm |
| March | 10.6 °C | 22 °C | 94.23 mm |
| April | 14.4 °C | 25.6 °C | 131.57 mm |
| May | 18.9 °C | 29.3 °C | 141.48 mm |
| June | 22.3 °C | 32.2 °C | 165.35 mm |
| July | 23.3 °C | 32.9 °C | 145.29 mm |
| August | 22.8 °C | 33.3 °C | 147.07 mm |
| September | 20.4 °C | 31.3 °C | 136.14 mm |
| October | 14.6 °C | 27.2 °C | 123.44 mm |
| November | 9.3 °C | 21.5 °C | 122.94 mm |
| December | 6.3 °C | 17.4 °C | 122.17 mm |
| Annual | 14.6 °C | 25.6 °C | 1599.94 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |