Baton Rouge weather in August: Baton Rouge, Louisiana: normal highs, lows, rain and records for August
Baton Rouge in August has a normal high of 92°F and a normal low of 73°F, a daily mean of 83°F, holding near 92°F all month. Measurable precipitation falls on 12 days in a normal August, 6.37 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 33°C and low of 23°C, 162 mm of precipitation in August.
- NOAA stationBaton Rouge Metro Airport
- Station IDUSW00013970
- Location30.54°N 91.15°W
- Elevation64 ft (20 m)
- From the center7 miles
- Population220,907
- Jan 62° 42°
- Feb 67° 45°
- Mar 73° 51°
- Apr 79° 57°
- May 86° 65°
- Jun 91° 72°
- Jul 92° 74°
- Aug 92° 73°
- Sep 89° 69°
- Oct 81° 58°
- Nov 71° 48°
- Dec 64° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Baton Rouge in August?
The normal high is 92°F and the normal low 73°F, for a daily mean of 82.8°F. August is 0.1°F cooler than July and 4.0°F warmer than September. August is the 2nd warmest month of the year in Baton Rouge and the 2nd wettest. Across the month the normal high falls 2°F, from 93°F on August 1 to 91°F on August 31. From one year to the next August's mean temperature typically moves about 1.6°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 81°F and 84°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 93°F | 74°F | 40% | 27% |
| August 8 | 93°F | 74°F | 39% | 26% |
| August 15 | 92°F | 74°F | 39% | 26% |
| August 22 | 92°F | 73°F | 38% | 26% |
| August 31 | 91°F | 72°F | 35% | 24% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 3, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 93°F | 74°F | 40% | 27% | 13 h 40 min |
| August 2 | 93°F | 74°F | 40% | 27% | 13 h 40 min |
| August 3 | 93°F | 74°F | 40% | 26% | 13 h 40 min |
| August 4 | 93°F | 74°F | 40% | 26% | 13 h 30 min |
| August 5 | 93°F | 74°F | 40% | 26% | 13 h 30 min |
| August 6 | 93°F | 74°F | 40% | 26% | 13 h 30 min |
| August 7 | 93°F | 74°F | 40% | 26% | 13 h 30 min |
| August 8 | 93°F | 74°F | 39% | 26% | 13 h 30 min |
| August 9 | 93°F | 74°F | 39% | 26% | 13 h 30 min |
| August 10 | 93°F | 74°F | 39% | 26% | 13 h 30 min |
| August 11 | 93°F | 74°F | 39% | 26% | 13 h 20 min |
| August 12 | 93°F | 74°F | 39% | 26% | 13 h 20 min |
| August 13 | 93°F | 74°F | 39% | 26% | 13 h 20 min |
| August 14 | 93°F | 74°F | 39% | 26% | 13 h 20 min |
| August 15 | 92°F | 74°F | 39% | 26% | 13 h 20 min |
| August 16 | 92°F | 73°F | 39% | 26% | 13 h 20 min |
| August 17 | 92°F | 73°F | 39% | 26% | 13 h 10 min |
| August 18 | 92°F | 73°F | 38% | 26% | 13 h 10 min |
| August 19 | 92°F | 73°F | 38% | 26% | 13 h 10 min |
| August 20 | 92°F | 73°F | 38% | 26% | 13 h 10 min |
| August 21 | 92°F | 73°F | 38% | 26% | 13 h 10 min |
| August 22 | 92°F | 73°F | 38% | 26% | 13 h 10 min |
| August 23 | 92°F | 73°F | 37% | 25% | 13 h |
| August 24 | 92°F | 73°F | 37% | 25% | 13 h |
| August 25 | 92°F | 73°F | 37% | 25% | 13 h |
| August 26 | 92°F | 73°F | 37% | 25% | 13 h |
| August 27 | 92°F | 73°F | 36% | 25% | 13 h |
| August 28 | 92°F | 73°F | 36% | 25% | 13 h |
| August 29 | 91°F | 72°F | 36% | 25% | 12 h 50 min |
| August 30 | 91°F | 72°F | 36% | 24% | 12 h 50 min |
| August 31 | 91°F | 72°F | 35% | 24% | 12 h 50 min |
- Normal high
- 92°FAugust average
- Normal low
- 73°FAugust average
- Precipitation
- 6.37 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 25
- Daylight
- 13 h 40 min to 12 h 50 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 31
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013970; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Baton Rouge in August?
On a given August day the chance of 0.01 inch or more is 38% on average, highest around August 1 (40%). In all, 6.37 in falls on 12 days of a normal August, 2 of them with an inch or more.
In a normal August in Baton Rouge, 25 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013970.
What are the records for August in Baton Rouge?
The warmest August temperature on Baton Rouge's official record (since 1892) is 110°F, on August 19, 1909; the coldest is 58°F, on August 15, 2004. The wettest August brought 30.96 in (2016).
The August mean against the 1991-2020 normal of 82.8°F: 2021 81.0°F (−1.8), 2022 82.5°F (−0.3), 2023 90.2°F (+7.4), 2024 86.5°F (+3.7), 2025 83.2°F (+0.4), 2026 85.5°F (+2.7). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 81.0°F | −1.8°F | 8.48 in |
| 2022 | 82.5°F | −0.3°F | 10.29 in |
| 2023 | 90.2°F | +7.4°F | 1.53 in |
| 2024 | 86.5°F | +3.7°F | 2.64 in |
| 2025 | 83.2°F | +0.4°F | 5.90 in |
| 2026 | 85.5°F | +2.7°F | 2.67 in |
Source: records: ACIS, NWS threaded record BTRthr; recent months: ACIS, station USW00013970. Records and recent months use complete months only.
How does August in Baton Rouge compare across Louisiana?
Across the 65 places PlainClimate covers in Louisiana, August normal highs run from 89°F in Boothville to 96°F in Natchitoches; Baton Rouge's is 92°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Baton Rouge in July92°F by day, 74°F at night
- Baton Rouge in September89°F by day, 69°F at night
- Baton Rouge through the yearEvery month, frost dates, records and recent years
- Louisiana in AugustThe statewide normal and the warmest and coolest places
- Natchitoches: Louisiana's warmest Augustnormal high 96°F