Cranberry Township weather in September

In September, Cranberry Township sees average daytime highs of 74°F and overnight lows near 55°F, with 4.0 in of rain across 10.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 78°F in the first days to 69°F by the end. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Cranberry Township's 1st-clearest and 9th-windiest month. For the whole year in context, see Cranberry Township's year-round climate.

Daytime high
74°
4th warmest
Overnight low
55°
9th coldest
Rainfall
4.0 in
10.1 wet days
Daylight
12 h 18 min
6:07 AM – 6:23 PM
Cloud cover
56%
1st clearest
Wind
6 mph
9th windiest
Solar energy
4.18 kWh/m²
Travel score
6.7
out of 10

Cranberry Township is township in Butler County, Pennsylvania.

Founded
1796

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 78°F in the first days to 69°F by the end.

A typical September day in Cranberry Township reaches about 74°F in the afternoon and slips back to 55°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 64°F and 83°F. Set against its neighbours, September runs about 6°F cooler than August and about 12°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17860
27860
37859
47859
57759
67758
77758
87658
97658
107657
117557
127556
137556
147456
157455
167455
177355
187354
197354
207254
217253
227153
237153
247152
257052
267051
277051
286951
296950
306850

How September really feels in Cranberry Township

Once humidity and wind are folded in, September 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

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

Cranberry Township weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 22°3.612.37.89.40.0
Feb39° / 23°3.010.86.110.40.0
Mar48° / 31°4.112.83.911.71.6
Apr61° / 42°4.714.21.113.14.4
May70° / 51°4.714.2014.25.8
Jun78° / 60°4.913.6014.96.1
Jul82° / 64°4.314014.65.9
Aug80° / 62°3.811.6013.66.3
Sep74° / 55°4.010.1012.36.7
Oct62° / 44°3.710.90.210.95.1
Nov49° / 35°3.510.51.79.72.1
Dec40° / 27°3.512.14.99.10.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25545
35545
45446
55446
65446
75347
85347
95347
105248
115149
125149
135149
145149
155050
165050
175050
185050
194951
204951
214951
224951
235050
245050
255149
264951
274951
284951
294951
304951

Chance of precipitation in September

Any precipitation

Cranberry Township gets around 4.0 in of rain over 10.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
133
233
333
433
533
633
734
834
934
1034
1134
1234
1334
1433
1533
1633
1733
1833
1933
2033
2133
2233
2333
2434
2534
2634
2734
2834
2934
3034

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1252723215
2262723205
3272722204
4282722194
5292721184
6312821174
7322821163
8332821153
9352821143
10362820132
11382720132
12392720122
13412720112
14422620101
15442620101
1645251991
1747241991
1849231981
1951231880
2053221870
2155211770
2257201760
2359191660
2462181550
2562181550
2664171450
2765171440
2867161340
2968161240
3069151240

Wind in September

Winds average 6 mph in September.

Across September, 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.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 5:52 AM to 6:21 AM, and sunset from 6:49 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:526:49
212.95:536:47
312.95:546:45
412.85:556:44
512.85:566:42
612.75:576:40
712.75:586:38
812.65:596:37
912.66:006:35
1012.56:016:33
1112.56:026:31
1212.46:036:30
1312.46:046:28
1412.46:056:26
1512.36:066:24
1612.36:076:23
1712.26:086:21
1812.26:096:19
1912.16:106:17
2012.16:116:16
2112.06:126:14
2212.06:136:12
2311.96:146:10
2411.96:156:09
2511.86:166:07
2611.86:176:05
2711.86:186:03
2811.76:196:02
2911.76:206:00
3011.66:215:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.18 kWh/m².

For context, solar energy here swings from a low near 1.47 kWh/m² to a high of 5.92 kWh/m² in June across the year — September's 4.18 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.1Bright
204.0Bright
214.0Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.8Moderate
263.8Moderate
273.7Moderate
283.7Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Is September a good time to visit Cranberry Township?

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

6.7
Sightseeing
1st-best month of the year
5.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Cranberry Township for sightseeing.

What to pack for Cranberry Township in September

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

In September, Cranberry Township sees daytime highs around 74°F and nights near 55°F. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Cranberry Township in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cranberry Township peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Cranberry Township in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cranberry Township is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 147 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr11Good
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Cranberry Township?

Cranberry Township sits at 40.7°N, 80.1°W, 1,033 ft above sea level, in United States. The nearest listed city is Allison Park, 12 mi away.

Topography around Cranberry Township

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

Within 2 miles, the terrain around Cranberry Township has only modest variations in elevation — a maximum elevation change of 367 ft around an average of 1,109 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 768 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,578 ft.

The land around Cranberry Township is covered by trees (56%) and artificial surfaces (26%) within 2 miles, trees (72%) within 10 miles, and trees (71%) within 50 miles.

2 miles
367 ft
10 miles
768 ft
50 miles
1,578 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Allison Park 12 mi · Pittsburgh 18 mi · Penn Hills 19 mi · Wilkinsburg 21 mi · Plum 23 mi · Mount Lebanon 23 mi · Upper Saint Clair 24 mi · Monroeville 25 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 Cranberry Township (40.685°, -80.1071°, elevation 1,033 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).