West Chester weather in August: West Chester, Pennsylvania: normal highs, lows, rain and records for August
West Chester in August has a normal high of 84°F and a normal low of 62°F, a daily mean of 73°F, falling from 85°F on the 1st to 83°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.79 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 16°C, 122 mm of precipitation in August.
- NOAA stationWest Chester (2 mi NW)
- Station IDUSC00369464
- Location39.97°N 75.64°W
- Elevation375 ft (114 m)
- From the center2 miles
- Population22,758
- Jan 40° 20°
- Feb 43° 21°
- Mar 51° 29°
- Apr 63° 38°
- May 73° 49°
- Jun 82° 59°
- Jul 86° 64°
- Aug 84° 62°
- Sep 78° 54°
- Oct 66° 41°
- Nov 55° 32°
- Dec 44° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is West Chester in August?
The normal high is 84°F and the normal low 62°F, for a daily mean of 73.0°F. August is 2.0°F cooler than July and 7.1°F warmer than September. August is the 2nd warmest month of the year in West Chester and the 3rd wettest. Across the month the normal high falls 2°F, from 85°F on August 1 to 83°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 71°F and 75°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 85°F | 64°F | 33% | 20% |
| August 8 | 85°F | 63°F | 33% | 20% |
| August 15 | 85°F | 62°F | 32% | 20% |
| August 22 | 84°F | 61°F | 31% | 19% |
| August 31 | 83°F | 59°F | 30% | 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 | 85°F | 64°F | 33% | 20% | 14 h 20 min |
| August 2 | 85°F | 64°F | 33% | 20% | 14 h 20 min |
| August 3 | 85°F | 63°F | 33% | 20% | 14 h 10 min |
| August 4 | 85°F | 63°F | 33% | 20% | 14 h 10 min |
| August 5 | 85°F | 63°F | 33% | 20% | 14 h 10 min |
| August 6 | 85°F | 63°F | 33% | 20% | 14 h 10 min |
| August 7 | 85°F | 63°F | 33% | 20% | 14 h 10 min |
| August 8 | 85°F | 63°F | 33% | 20% | 14 h |
| August 9 | 85°F | 63°F | 33% | 20% | 14 h |
| August 10 | 85°F | 63°F | 33% | 20% | 14 h |
| August 11 | 85°F | 63°F | 33% | 20% | 14 h |
| August 12 | 85°F | 62°F | 33% | 20% | 13 h 50 min |
| August 13 | 85°F | 62°F | 32% | 20% | 13 h 50 min |
| August 14 | 85°F | 62°F | 32% | 20% | 13 h 50 min |
| August 15 | 85°F | 62°F | 32% | 20% | 13 h 50 min |
| August 16 | 85°F | 62°F | 32% | 20% | 13 h 50 min |
| August 17 | 85°F | 62°F | 32% | 20% | 13 h 40 min |
| August 18 | 84°F | 62°F | 32% | 20% | 13 h 40 min |
| August 19 | 84°F | 61°F | 31% | 20% | 13 h 40 min |
| August 20 | 84°F | 61°F | 31% | 20% | 13 h 40 min |
| August 21 | 84°F | 61°F | 31% | 19% | 13 h 30 min |
| August 22 | 84°F | 61°F | 31% | 19% | 13 h 30 min |
| August 23 | 84°F | 61°F | 31% | 19% | 13 h 30 min |
| August 24 | 84°F | 60°F | 31% | 19% | 13 h 30 min |
| August 25 | 84°F | 60°F | 30% | 19% | 13 h 20 min |
| August 26 | 84°F | 60°F | 30% | 19% | 13 h 20 min |
| August 27 | 84°F | 60°F | 30% | 19% | 13 h 20 min |
| August 28 | 83°F | 60°F | 30% | 19% | 13 h 20 min |
| August 29 | 83°F | 59°F | 30% | 19% | 13 h 10 min |
| August 30 | 83°F | 59°F | 30% | 19% | 13 h 10 min |
| August 31 | 83°F | 59°F | 30% | 19% | 13 h 10 min |
- Normal high
- 84°FAugust average
- Normal low
- 62°FAugust average
- Precipitation
- 4.79 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 7
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 26
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00369464; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in West Chester in August?
On a given August day the chance of 0.01 inch or more is 32% on average, highest around August 1 (33%). In all, 4.79 in falls on 10 days of a normal August, 2 of them with an inch or more.
In a normal August in West Chester, 7 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00369464.
What are the records for August in West Chester?
The warmest August temperature on this station's record (since 1893) is 104°F, on August 7, 1918; the coldest is 38°F, on August 29, 1982. The wettest August brought 15.58 in (1955).
Source: records: ACIS, station USC00369464. Records and recent months use complete months only.
How does August in West Chester 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; West Chester's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- West Chester in July86°F by day, 64°F at night
- West Chester in September78°F by day, 54°F at night
- West Chester 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