Birmingham weather in August: Birmingham, Alabama: normal highs, lows, rain and records for August
Birmingham in August has a normal high of 91°F and a normal low of 71°F, a daily mean of 81°F, falling from 91°F on the 1st to 89°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 4.35 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 33°C and low of 22°C, 110 mm of precipitation in August.
- NOAA stationBirmingham Airport
- Station IDUSW00013876
- Location33.57°N 86.75°W
- Elevation615 ft (188 m)
- From the center4 miles
- Population196,357
- Jan 55° 35°
- Feb 59° 38°
- Mar 67° 45°
- Apr 75° 52°
- May 82° 61°
- Jun 88° 69°
- Jul 91° 72°
- Aug 91° 71°
- Sep 86° 65°
- Oct 76° 54°
- Nov 65° 43°
- Dec 57° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Birmingham in August?
The normal high is 91°F and the normal low 71°F, for a daily mean of 80.9°F. August is 0.6°F cooler than July and 5.3°F warmer than September. August is the 2nd warmest month of the year in Birmingham and the 9th wettest. Across the month the normal high falls 2°F, from 91°F on August 1 to 89°F on August 31. From one year to the next August's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 78°F and 83°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 91°F | 72°F | 37% | 23% |
| August 8 | 91°F | 72°F | 36% | 23% |
| August 15 | 91°F | 72°F | 34% | 22% |
| August 22 | 90°F | 71°F | 32% | 20% |
| August 31 | 89°F | 69°F | 29% | 18% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 91°F | 72°F | 37% | 23% | 13 h 50 min |
| August 2 | 91°F | 72°F | 37% | 23% | 13 h 50 min |
| August 3 | 91°F | 72°F | 37% | 23% | 13 h 50 min |
| August 4 | 91°F | 72°F | 37% | 23% | 13 h 40 min |
| August 5 | 91°F | 72°F | 37% | 23% | 13 h 40 min |
| August 6 | 91°F | 72°F | 36% | 23% | 13 h 40 min |
| August 7 | 91°F | 72°F | 36% | 23% | 13 h 40 min |
| August 8 | 91°F | 72°F | 36% | 23% | 13 h 40 min |
| August 9 | 91°F | 72°F | 36% | 23% | 13 h 40 min |
| August 10 | 91°F | 72°F | 36% | 23% | 13 h 40 min |
| August 11 | 91°F | 72°F | 35% | 22% | 13 h 30 min |
| August 12 | 91°F | 72°F | 35% | 22% | 13 h 30 min |
| August 13 | 91°F | 72°F | 35% | 22% | 13 h 30 min |
| August 14 | 91°F | 72°F | 34% | 22% | 13 h 30 min |
| August 15 | 91°F | 72°F | 34% | 22% | 13 h 30 min |
| August 16 | 91°F | 72°F | 34% | 21% | 13 h 20 min |
| August 17 | 91°F | 71°F | 33% | 21% | 13 h 20 min |
| August 18 | 91°F | 71°F | 33% | 21% | 13 h 20 min |
| August 19 | 91°F | 71°F | 33% | 21% | 13 h 20 min |
| August 20 | 91°F | 71°F | 32% | 21% | 13 h 20 min |
| August 21 | 90°F | 71°F | 32% | 20% | 13 h 20 min |
| August 22 | 90°F | 71°F | 32% | 20% | 13 h 10 min |
| August 23 | 90°F | 71°F | 31% | 20% | 13 h 10 min |
| August 24 | 90°F | 71°F | 31% | 20% | 13 h 10 min |
| August 25 | 90°F | 70°F | 31% | 19% | 13 h 10 min |
| August 26 | 90°F | 70°F | 30% | 19% | 13 h 10 min |
| August 27 | 90°F | 70°F | 30% | 19% | 13 h |
| August 28 | 90°F | 70°F | 29% | 19% | 13 h |
| August 29 | 90°F | 70°F | 29% | 19% | 13 h |
| August 30 | 89°F | 70°F | 29% | 19% | 13 h |
| August 31 | 89°F | 69°F | 29% | 18% | 13 h |
- Normal high
- 91°FAugust average
- Normal low
- 71°FAugust average
- Precipitation
- 4.35 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 19
- Daylight
- 13 h 50 min to 13 hAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013876; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Birmingham in August?
On a given August day the chance of 0.01 inch or more is 33% on average, highest around August 1 (37%). In all, 4.35 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in Birmingham, 19 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013876.
How humid and windy is Birmingham in August?
At 3 p.m. the normal temperature is 87°F with 51% relative humidity and a dew point of 66°F; at 6 a.m. it is 71°F with 87% humidity. The wind averages 4.9 mph, most often from the 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. | 71°F | 67°F | 87% | 3.1 mph | 59% |
| 9 a.m. | 80°F | 68°F | 67% | 6.1 mph | 53% |
| noon | 86°F | 67°F | 54% | 7.3 mph | 33% |
| 3 p.m. | 87°F | 66°F | 51% | 7.7 mph | 26% |
| 6 p.m. | 82°F | 67°F | 61% | 5.7 mph | 46% |
| 9 p.m. | 76°F | 68°F | 76% | 3.4 mph | 59% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013876. 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 Birmingham?
The warmest August temperature on Birmingham's official record (since 1895) is 105°F, on August 23, 2007; the coldest is 51°F, on August 31, 1946. The wettest August brought 13.83 in (1901).
The August mean against the 1991-2020 normal of 80.9°F: 2021 80.7°F (−0.2), 2022 79.8°F (−1.1), 2023 82.3°F (+1.4), 2024 82.1°F (+1.2), 2025 79.5°F (−1.4), 2026 82.9°F (+2.0). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.7°F | −0.2°F | 7.70 in |
| 2022 | 79.8°F | −1.1°F | 3.04 in |
| 2023 | 82.3°F | +1.4°F | 6.87 in |
| 2024 | 82.1°F | +1.2°F | 1.09 in |
| 2025 | 79.5°F | −1.4°F | 3.18 in |
| 2026 | 82.9°F | +2.0°F | 4.59 in |
Source: records: ACIS, NWS threaded record BHMthr; recent months: ACIS, station USW00013876. Records and recent months use complete months only.
How does August in Birmingham compare across Alabama?
Across the 80 places PlainClimate covers in Alabama, August normal highs run from 87°F in Valley Head to 94°F in Eufaula; Birmingham's is 91°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.