| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 17.2° | 5.3° | 147.9mm | 9.7 | 72 |
| February | 19.4° | 7.4° | 104.7mm | 8.7 | 81 |
| March | 23.2° | 10.8° | 116.8mm | 8.9 | 82 |
| April | 26.4° | 13.9° | 124.9mm | 7.6 | 85 |
| May | 30.2° | 18.6° | 140.4mm | 8 | 71 |
| June | 32.8° | 22.1° | 156.5mm | 11.6 | 54 |
| July | 33.5° | 23.4° | 128.7mm | 13.3 | 47 |
| August | 33.7° | 23.2° | 159.6mm | 11.7 | 50 |
| September | 31.7° | 20.6° | 117.5mm | 8.4 | 64 |
| October | 27.5° | 14.5° | 113.3mm | 6.6 | 85 |
| November | 22.1° | 9.1° | 103.9mm | 8 | 84 |
| December | 18.3° | 6.5° | 144.4mm | 9.5 | 76 |
January in Baton Rouge averages a daily high of 17.2°C with nights around 5.3°C. Expect roughly 9.7 wet days totalling 147.9mm. Generally workable, with some weather to plan around.
February in Baton Rouge averages a daily high of 19.4°C with nights around 7.4°C. Expect roughly 8.7 wet days totalling 104.7mm. Comfortable conditions for being outdoors all day.
March in Baton Rouge averages a daily high of 23.2°C with nights around 10.8°C. Expect roughly 8.9 wet days totalling 116.8mm. Comfortable conditions for being outdoors all day.
April in Baton Rouge averages a daily high of 26.4°C with nights around 13.9°C. Expect roughly 7.6 wet days totalling 124.9mm. Comfortable conditions for being outdoors all day.
May in Baton Rouge averages a daily high of 30.2°C with nights around 18.6°C. Expect roughly 8 wet days totalling 140.4mm. Generally workable, with some weather to plan around.
June in Baton Rouge averages a daily high of 32.8°C with nights around 22.1°C. Expect roughly 11.6 wet days totalling 156.5mm. Demanding conditions — pack for it and plan indoor options.
July in Baton Rouge averages a daily high of 33.5°C with nights around 23.4°C. Expect roughly 13.3 wet days totalling 128.7mm. Demanding conditions — pack for it and plan indoor options.
August in Baton Rouge averages a daily high of 33.7°C with nights around 23.2°C. Expect roughly 11.7 wet days totalling 159.6mm. Demanding conditions — pack for it and plan indoor options.
September in Baton Rouge averages a daily high of 31.7°C with nights around 20.6°C. Expect roughly 8.4 wet days totalling 117.5mm. Generally workable, with some weather to plan around.
October in Baton Rouge averages a daily high of 27.5°C with nights around 14.5°C. Expect roughly 6.6 wet days totalling 113.3mm. Comfortable conditions for being outdoors all day.
November in Baton Rouge averages a daily high of 22.1°C with nights around 9.1°C. Expect roughly 8 wet days totalling 103.9mm. Comfortable conditions for being outdoors all day.
December in Baton Rouge averages a daily high of 18.3°C with nights around 6.5°C. Expect roughly 9.5 wet days totalling 144.4mm. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Baton Rouge peaks at 85.
Based on 30 years of records, February–April scores highest for comfort in Baton Rouge, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 33.7°C.
August is the wettest, averaging 159.6mm of rain across roughly 11.7 wet days.
January is the coolest month, with average daily highs around 17.2°C.