Dallas weather in August: Dallas, Texas: normal highs, lows, rain and records for August
Dallas in August has a normal high of 96°F and a normal low of 76°F, a daily mean of 86°F, falling from 97°F on the 1st to 93°F by the 31st. Measurable precipitation falls on 5 days in a normal August, 2.18 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 35°C and low of 24°C, 55 mm of precipitation in August.
- NOAA stationDallas Fort Worth Airport
- Station IDUSW00003927
- Location32.90°N 97.02°W
- Elevation560 ft (171 m)
- From the center16 miles
- Population1,326,087
- Jan 57° 36°
- Feb 61° 40°
- Mar 69° 48°
- Apr 76° 55°
- May 84° 65°
- Jun 92° 72°
- Jul 96° 76°
- Aug 96° 76°
- Sep 89° 69°
- Oct 78° 57°
- Nov 67° 46°
- Dec 58° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Dallas in August?
The normal high is 96°F and the normal low 76°F, for a daily mean of 85.7°F. August is 0.0°F warmer than July and 7.2°F warmer than September. August is the warmest month of the year in Dallas and the 11th wettest. Across the month the normal high falls 4°F, from 97°F on August 1 to 93°F on August 31. From one year to the next August's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 83°F and 89°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 19%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 97°F | 77°F | 14% | 9% |
| August 8 | 97°F | 77°F | 15% | 10% |
| August 15 | 96°F | 76°F | 17% | 11% |
| August 22 | 95°F | 75°F | 18% | 12% |
| August 31 | 93°F | 73°F | 19% | 13% |
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 | 97°F | 77°F | 14% | 9% | 13 h 50 min |
| August 2 | 97°F | 77°F | 14% | 9% | 13 h 50 min |
| August 3 | 97°F | 77°F | 14% | 9% | 13 h 40 min |
| August 4 | 97°F | 77°F | 14% | 9% | 13 h 40 min |
| August 5 | 97°F | 77°F | 14% | 9% | 13 h 40 min |
| August 6 | 97°F | 77°F | 15% | 9% | 13 h 40 min |
| August 7 | 97°F | 77°F | 15% | 9% | 13 h 40 min |
| August 8 | 97°F | 77°F | 15% | 10% | 13 h 40 min |
| August 9 | 97°F | 77°F | 15% | 10% | 13 h 30 min |
| August 10 | 97°F | 77°F | 16% | 10% | 13 h 30 min |
| August 11 | 97°F | 77°F | 16% | 10% | 13 h 30 min |
| August 12 | 97°F | 76°F | 16% | 11% | 13 h 30 min |
| August 13 | 97°F | 76°F | 16% | 11% | 13 h 30 min |
| August 14 | 97°F | 76°F | 17% | 11% | 13 h 30 min |
| August 15 | 96°F | 76°F | 17% | 11% | 13 h 20 min |
| August 16 | 96°F | 76°F | 17% | 11% | 13 h 20 min |
| August 17 | 96°F | 76°F | 17% | 11% | 13 h 20 min |
| August 18 | 96°F | 76°F | 17% | 11% | 13 h 20 min |
| August 19 | 96°F | 76°F | 18% | 12% | 13 h 20 min |
| August 20 | 96°F | 76°F | 18% | 12% | 13 h 20 min |
| August 21 | 95°F | 75°F | 18% | 12% | 13 h 10 min |
| August 22 | 95°F | 75°F | 18% | 12% | 13 h 10 min |
| August 23 | 95°F | 75°F | 18% | 12% | 13 h 10 min |
| August 24 | 95°F | 75°F | 18% | 12% | 13 h 10 min |
| August 25 | 94°F | 75°F | 18% | 12% | 13 h 10 min |
| August 26 | 94°F | 75°F | 18% | 12% | 13 h |
| August 27 | 94°F | 74°F | 18% | 12% | 13 h |
| August 28 | 94°F | 74°F | 19% | 12% | 13 h |
| August 29 | 94°F | 74°F | 19% | 13% | 13 h |
| August 30 | 93°F | 74°F | 19% | 13% | 13 h |
| August 31 | 93°F | 73°F | 19% | 13% | 12 h 50 min |
- Normal high
- 96°FAugust average
- Normal low
- 76°FAugust average
- Precipitation
- 2.18 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 28
- Daylight
- 13 h 50 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
- 87%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003927; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Dallas in August?
On a given August day the chance of 0.01 inch or more is 17% on average, highest around August 30 (19%). In all, 2.18 in falls on 5 days of a normal August, 1 of them with an inch or more.
In a normal August in Dallas, 28 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003927.
How humid and windy is Dallas in August?
At 3 p.m. the normal temperature is 92°F with 41% relative humidity and a dew point of 65°F; at 6 a.m. it is 75°F with 77% humidity. The wind averages 8.2 mph, most often from the southeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 75°F | 68°F | 77% | 6.2 mph | 45% |
| 9 a.m. | 82°F | 68°F | 63% | 8.5 mph | 47% |
| noon | 89°F | 67°F | 47% | 9.1 mph | 33% |
| 3 p.m. | 92°F | 65°F | 41% | 9.6 mph | 29% |
| 6 p.m. | 90°F | 64°F | 43% | 9.9 mph | 44% |
| 9 p.m. | 83°F | 66°F | 55% | 8.1 mph | 57% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003927. 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 Dallas?
The warmest August temperature on Dallas's official record (since 1913) is 111°F, on August 3, 2011; the coldest is 57°F, on August 31, 1915. The wettest August brought 10.82 in (1915).
The August mean against the 1991-2020 normal of 85.7°F: 2021 85.1°F (−0.6), 2022 86.8°F (+1.1), 2023 92.8°F (+7.1), 2024 88.8°F (+3.1), 2025 85.5°F (−0.2), 2026 91.3°F (+5.6). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 85.1°F | −0.6°F | 4.82 in |
| 2022 | 86.8°F | +1.1°F | 10.68 in |
| 2023 | 92.8°F | +7.1°F | 0.00 in |
| 2024 | 88.8°F | +3.1°F | 0.41 in |
| 2025 | 85.5°F | −0.2°F | 4.89 in |
| 2026 | 91.3°F | +5.6°F | 0.00 in |
Source: records: ACIS, NWS threaded record DALthr; recent months: ACIS, station USW00003927. Records and recent months use complete months only.
How does August in Dallas compare across Texas?
Across the 321 places PlainClimate covers in Texas, August normal highs run from 87°F in Marfa to 101°F in Del Rio; Dallas's is 96°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.