West Chester weather in July

In July, West Chester sees average daytime highs of 85°F and overnight lows near 69°F, with 4.2 in of rain across 11.4 wet days and about 14.5 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 85°F through the month. The sky is clear or mostly clear about 27% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 48 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is West Chester's 5th-clearest and 11th-windiest month. For the whole year in context, see West Chester's year-round climate.

Daytime high
85°
1st warmest
Overnight low
69°
12th coldest
Rainfall
4.2 in
11.4 wet days
Daylight
14 h 36 min
4:51 AM – 7:25 PM
Cloud cover
59%
5th clearest
Wind
6 mph
11th windiest
Solar energy
5.98 kWh/m²
Travel score
5.0
out of 10

West Chester is borough in and seat of Chester County, Pennsylvania, United States.

Density
4,149/km²
people per km²
Founded
1799

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 85°F through the month.

A typical July day in West Chester reaches about 85°F in the afternoon and slips back to 69°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 93°F. Set against its neighbours, July runs about 4°F warmer than June and about 2°F warmer than August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18567
28568
38568
48568
58568
68568
78568
88569
98569
108669
118669
128669
138669
148669
158669
168669
178669
188669
198669
208669
218669
228669
238669
248569
258569
268569
278569
288569
298569
308569
318569

How July really feels in West Chester

Once humidity and wind are folded in, July averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

West Chester weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 27°3.39.43.99.50.0
Feb43° / 28°3.09.23.510.40.4
Mar51° / 35°4.110.72.811.72.5
Apr63° / 45°3.810.80.3135.2
May72° / 54°3.711.4014.26.4
Jun81° / 64°4.211.3014.86.0
Jul85° / 69°4.211.4014.55.0
Aug83° / 67°3.910.5013.65.7
Sep77° / 60°4.59.6012.36.9
Oct65° / 49°3.78.50.110.96.1
Nov54° / 39°3.080.39.83.4
Dec44° / 31°4.09.429.20.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
35050
44951
54951
65050
75149
85149
95149
105149
115248
125248
135248
145248
155248
165248
175149
185149
195149
205050
214951
224951
234951
244951
254852
264951
274951
284852
294852
304951
314852

Chance of precipitation in July

Any precipitation

West Chester gets around 4.2 in of rain over 11.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
435
535
635
734
834
934
1033
1133
1233
1333
1433
1533
1634
1734
1835
1936
2037
2138
2238
2339
2440
2540
2641
2741
2841
2941
3041
3141

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
112202428150
212202329150
312202328160
412202328160
512202328160
612202428170
712192428170
812192428170
911182429170
1011182429180
1110182429181
1210172430181
1310172430191
149172430191
159172430201
169162330201
178162331211
188162331211
198152332221
208152232221
217152233221
227142233221
237142234221
247142234221
257142234221
267142234221
277142333221
288132333221
298132333221
309132333210
319132433210

Wind in July

Winds average 6 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 48 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 4:42 AM to 5:03 AM, and sunset from 7:30 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:427:30
214.84:427:30
314.84:437:30
414.84:437:30
514.84:447:29
614.84:447:29
714.74:457:29
814.74:457:29
914.74:467:28
1014.74:477:28
1114.74:477:28
1214.74:487:27
1314.64:497:27
1414.64:497:26
1514.64:507:26
1614.64:517:25
1714.64:527:25
1814.54:527:24
1914.54:537:24
2014.54:547:23
2114.54:557:22
2214.44:567:21
2314.44:567:21
2414.44:577:20
2514.34:587:19
2614.34:597:18
2714.35:007:17
2814.35:017:16
2914.25:027:16
3014.25:037:15
3114.25:037:14

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.98 kWh/m².

For context, solar energy here swings from a low near 1.81 kWh/m² to a high of 6.06 kWh/m² in June across the year — July's 5.98 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.0Intense
176.0Intense
186.0Bright
196.0Bright
205.9Bright
215.9Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.6Bright
315.6Bright
Planning a trip in July

Is July a good time to visit West Chester?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
7th-best month of the year
6.7
Beach & pool
2nd-best month of the year

July is a reasonable time to visit West Chester for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for West Chester in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, West Chester sees daytime highs around 85°F and nights near 69°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in West Chester in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in West Chester peaks around June 23 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 23UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in West Chester in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in West Chester is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 128 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is West Chester?

West Chester sits at 40.0°N, 75.6°W, 459 ft above sea level, in United States. The nearest listed city is Phoenixville, 12 mi away.

Topography around West Chester

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of West Chester.

Within 2 miles, the terrain around West Chester has only modest variations in elevation — a maximum elevation change of 364 ft around an average of 404 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 948 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,936 ft.

The land around West Chester is covered by trees (63%) within 2 miles, trees (68%) and grassland (21%) within 10 miles, and trees (54%) within 50 miles.

2 miles
364 ft
10 miles
948 ft
50 miles
1,936 ft
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Phoenixville 12 mi · Wayne 13 mi · King of Prussia 14 mi · Radnor 14 mi · Wilmington 15 mi · Springfield 16 mi · Chester 16 mi · Havertown 16 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for West Chester (39.961°, -75.608°, elevation 459 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).