Pittsburgh weather in August: Pittsburgh, Pennsylvania: normal highs, lows, rain and records for August
Pittsburgh in August has a normal high of 82°F and a normal low of 62°F, a daily mean of 72°F, falling from 83°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 3.52 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 17°C, 89 mm of precipitation in August.
- NOAA stationPittsburgh International Airport
- Station IDUSW00094823
- Location40.48°N 80.21°W
- Elevation1,203 ft (367 m)
- From the center13 miles
- Population307,668
- Jan 36° 21°
- Feb 40° 23°
- Mar 49° 30°
- Apr 62° 41°
- May 72° 51°
- Jun 79° 59°
- Jul 83° 63°
- Aug 82° 62°
- Sep 75° 55°
- Oct 63° 44°
- Nov 51° 34°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pittsburgh in August?
The normal high is 82°F and the normal low 62°F, for a daily mean of 71.8°F. August is 1.4°F cooler than July and 6.9°F warmer than September. August is the 2nd warmest month of the year in Pittsburgh and the 4th wettest. Across the month the normal high falls 3°F, from 83°F on August 1 to 80°F on August 31. From one year to the next August's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 69°F and 74°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 83°F | 63°F | 36% | 22% |
| August 8 | 82°F | 63°F | 35% | 21% |
| August 15 | 82°F | 62°F | 34% | 21% |
| August 22 | 81°F | 62°F | 33% | 20% |
| August 31 | 80°F | 60°F | 31% | 19% |
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 | 83°F | 63°F | 36% | 22% | 14 h 20 min |
| August 2 | 83°F | 63°F | 36% | 22% | 14 h 20 min |
| August 3 | 83°F | 63°F | 36% | 22% | 14 h 20 min |
| August 4 | 83°F | 63°F | 36% | 22% | 14 h 10 min |
| August 5 | 83°F | 63°F | 36% | 22% | 14 h 10 min |
| August 6 | 82°F | 63°F | 36% | 22% | 14 h 10 min |
| August 7 | 82°F | 63°F | 36% | 21% | 14 h 10 min |
| August 8 | 82°F | 63°F | 35% | 21% | 14 h 10 min |
| August 9 | 82°F | 63°F | 35% | 21% | 14 h |
| August 10 | 82°F | 63°F | 35% | 21% | 14 h |
| August 11 | 82°F | 63°F | 35% | 21% | 14 h |
| August 12 | 82°F | 63°F | 35% | 21% | 14 h |
| August 13 | 82°F | 63°F | 35% | 21% | 13 h 50 min |
| August 14 | 82°F | 63°F | 35% | 21% | 13 h 50 min |
| August 15 | 82°F | 62°F | 34% | 21% | 13 h 50 min |
| August 16 | 82°F | 62°F | 34% | 21% | 13 h 50 min |
| August 17 | 82°F | 62°F | 34% | 21% | 13 h 50 min |
| August 18 | 82°F | 62°F | 34% | 21% | 13 h 40 min |
| August 19 | 82°F | 62°F | 34% | 21% | 13 h 40 min |
| August 20 | 82°F | 62°F | 33% | 21% | 13 h 40 min |
| August 21 | 82°F | 62°F | 33% | 20% | 13 h 40 min |
| August 22 | 81°F | 62°F | 33% | 20% | 13 h 30 min |
| August 23 | 81°F | 61°F | 33% | 20% | 13 h 30 min |
| August 24 | 81°F | 61°F | 32% | 20% | 13 h 30 min |
| August 25 | 81°F | 61°F | 32% | 20% | 13 h 30 min |
| August 26 | 81°F | 61°F | 32% | 20% | 13 h 20 min |
| August 27 | 81°F | 61°F | 32% | 20% | 13 h 20 min |
| August 28 | 81°F | 60°F | 32% | 20% | 13 h 20 min |
| August 29 | 80°F | 60°F | 32% | 19% | 13 h 20 min |
| August 30 | 80°F | 60°F | 31% | 19% | 13 h 10 min |
| August 31 | 80°F | 60°F | 31% | 19% | 13 h 10 min |
- Normal high
- 82°FAugust average
- Normal low
- 62°FAugust average
- Precipitation
- 3.52 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 21
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094823; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pittsburgh in August?
On a given August day the chance of 0.01 inch or more is 34% on average, highest around August 1 (36%). In all, 3.52 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in Pittsburgh, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094823.
How humid and windy is Pittsburgh in August?
At 3 p.m. the normal temperature is 79°F with 49% relative humidity and a dew point of 58°F; at 6 a.m. it is 62°F with 88% humidity. The wind averages 5.8 mph, most often from the west in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 62°F | 58°F | 88% | 3.5 mph | 39% |
| 9 a.m. | 69°F | 61°F | 74% | 6.2 mph | 40% |
| noon | 76°F | 59°F | 56% | 8.0 mph | 25% |
| 3 p.m. | 79°F | 58°F | 49% | 8.6 mph | 27% |
| 6 p.m. | 77°F | 59°F | 54% | 7.6 mph | 39% |
| 9 p.m. | 70°F | 60°F | 69% | 5.2 mph | 51% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094823. 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 Pittsburgh?
The warmest August temperature on Pittsburgh's official record (since 1875) is 103°F, on August 6, 1918; the coldest is 39°F, on August 29, 1982. The wettest August brought 7.86 in (1987).
The August mean against the 1991-2020 normal of 71.8°F: 2021 74.4°F (+2.6), 2022 72.1°F (+0.3), 2023 72.3°F (+0.5), 2024 73.8°F (+2.0), 2025 71.3°F (−0.5), 2026 72.3°F (+0.5). 5 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.4°F | +2.6°F | 6.41 in |
| 2022 | 72.1°F | +0.3°F | 3.39 in |
| 2023 | 72.3°F | +0.5°F | 2.71 in |
| 2024 | 73.8°F | +2.0°F | 5.12 in |
| 2025 | 71.3°F | −0.5°F | 1.58 in |
| 2026 | 72.3°F | +0.5°F | 7.62 in |
Source: records: ACIS, NWS threaded record PITthr; recent months: ACIS, station USW00094823. Records and recent months use complete months only.
How does August in Pittsburgh compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, August normal highs run from 75°F in Laporte to 87°F in Marcus Hook; Pittsburgh's is 82°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Pittsburgh in July83°F by day, 63°F at night
- Pittsburgh in September75°F by day, 55°F at night
- Pittsburgh through the yearEvery month, frost dates, records and recent years
- Pennsylvania in AugustThe statewide normal and the warmest and coolest places
- Marcus Hook: Pennsylvania's warmest Augustnormal high 87°F