Lafayette weather in August: Lafayette, Louisiana: normal highs, lows, rain and records for August
Lafayette in August has a normal high of 92°F and a normal low of 75°F, a daily mean of 84°F, holding near 92°F all month. Measurable precipitation falls on 12 days in a normal August, 6.26 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 34°C and low of 24°C, 159 mm of precipitation in August.
- NOAA stationLafayette Regional Airport
- Station IDUSW00013976
- Location30.20°N 91.99°W
- Elevation38 ft (12 m)
- Population122,280
- Jan 62° 44°
- Feb 66° 47°
- Mar 73° 53°
- Apr 79° 59°
- May 86° 67°
- Jun 90° 73°
- Jul 92° 75°
- Aug 92° 75°
- Sep 89° 70°
- Oct 81° 60°
- Nov 72° 50°
- Dec 64° 45°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lafayette in August?
The normal high is 92°F and the normal low 75°F, for a daily mean of 83.5°F. August is 0.2°F warmer than July and 3.8°F warmer than September. August is the warmest month of the year in Lafayette and the 3rd wettest. Across the month the normal high falls 1°F, from 92°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 82°F and 85°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 41%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 92°F | 75°F | 41% | 28% |
| August 8 | 93°F | 75°F | 40% | 27% |
| August 15 | 93°F | 75°F | 40% | 27% |
| August 22 | 92°F | 75°F | 39% | 27% |
| August 31 | 91°F | 74°F | 38% | 26% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 6, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 92°F | 75°F | 41% | 28% | 13 h 40 min |
| August 2 | 92°F | 75°F | 41% | 28% | 13 h 40 min |
| August 3 | 93°F | 75°F | 41% | 27% | 13 h 30 min |
| August 4 | 93°F | 75°F | 41% | 27% | 13 h 30 min |
| August 5 | 93°F | 75°F | 41% | 27% | 13 h 30 min |
| August 6 | 93°F | 75°F | 41% | 27% | 13 h 30 min |
| August 7 | 93°F | 75°F | 40% | 27% | 13 h 30 min |
| August 8 | 93°F | 75°F | 40% | 27% | 13 h 30 min |
| August 9 | 93°F | 75°F | 40% | 27% | 13 h 30 min |
| August 10 | 93°F | 75°F | 40% | 27% | 13 h 20 min |
| August 11 | 93°F | 75°F | 40% | 27% | 13 h 20 min |
| August 12 | 93°F | 75°F | 40% | 27% | 13 h 20 min |
| August 13 | 93°F | 75°F | 40% | 27% | 13 h 20 min |
| August 14 | 93°F | 75°F | 40% | 27% | 13 h 20 min |
| August 15 | 93°F | 75°F | 40% | 27% | 13 h 20 min |
| August 16 | 93°F | 75°F | 40% | 27% | 13 h 10 min |
| August 17 | 93°F | 75°F | 40% | 27% | 13 h 10 min |
| August 18 | 92°F | 75°F | 39% | 27% | 13 h 10 min |
| August 19 | 92°F | 75°F | 39% | 27% | 13 h 10 min |
| August 20 | 92°F | 75°F | 39% | 27% | 13 h 10 min |
| August 21 | 92°F | 75°F | 39% | 27% | 13 h 10 min |
| August 22 | 92°F | 75°F | 39% | 27% | 13 h 10 min |
| August 23 | 92°F | 74°F | 39% | 27% | 13 h |
| August 24 | 92°F | 74°F | 39% | 26% | 13 h |
| August 25 | 92°F | 74°F | 39% | 26% | 13 h |
| August 26 | 92°F | 74°F | 38% | 26% | 13 h |
| August 27 | 92°F | 74°F | 38% | 26% | 13 h |
| August 28 | 92°F | 74°F | 38% | 26% | 12 h 50 min |
| August 29 | 92°F | 74°F | 38% | 26% | 12 h 50 min |
| August 30 | 92°F | 74°F | 38% | 26% | 12 h 50 min |
| August 31 | 91°F | 74°F | 38% | 26% | 12 h 50 min |
- Normal high
- 92°FAugust average
- Normal low
- 75°FAugust average
- Precipitation
- 6.26 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 USW00013976; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lafayette in August?
On a given August day the chance of 0.01 inch or more is 40% on average, highest around August 1 (41%). In all, 6.26 in falls on 12 days of a normal August, 2 of them with an inch or more.
In a normal August in Lafayette, 25 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013976.
How humid and windy is Lafayette in August?
At 3 p.m. the normal temperature is 87°F with 59% relative humidity and a dew point of 71°F; at 6 a.m. it is 74°F with 92% humidity. The wind averages 5.3 mph, most often from the east-northeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 74°F | 72°F | 92% | 4.1 mph | 77% |
| 9 a.m. | 82°F | 73°F | 74% | 6.5 mph | 72% |
| noon | 88°F | 72°F | 60% | 7.6 mph | 55% |
| 3 p.m. | 87°F | 71°F | 59% | 7.6 mph | 64% |
| 6 p.m. | 84°F | 72°F | 68% | 5.7 mph | 71% |
| 9 p.m. | 78°F | 73°F | 84% | 3.9 mph | 85% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013976. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Lafayette?
The warmest August temperature on this station's record (since 1893) is 110°F, on August 27, 2023; the coldest is 58°F, on August 29, 1906. The wettest August brought 24.74 in (2016).
The August mean against the 1991-2020 normal of 83.5°F: 2021 84.0°F (+0.5), 2022 82.6°F (−0.9), 2023 90.3°F (+6.8), 2024 86.6°F (+3.1), 2025 83.0°F (−0.5), 2026 85.6°F (+2.1). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 84.0°F | +0.5°F | 3.71 in |
| 2022 | 82.6°F | −0.9°F | 15.98 in |
| 2023 | 90.3°F | +6.8°F | 1.10 in |
| 2024 | 86.6°F | +3.1°F | 4.33 in |
| 2025 | 83.0°F | −0.5°F | 3.57 in |
| 2026 | 85.6°F | +2.1°F | 3.00 in |
Source: records: ACIS, station USW00013976; recent months: ACIS, station USW00013976. Records and recent months use complete months only.
How does August in Lafayette 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; Lafayette's is 92°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.