Corsicana weather in September

In September, Corsicana sees average daytime highs of 89°F and overnight lows near 70°F, with 2.4 in of rain across 6.3 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 92°F in the first days to 86°F by the end. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Corsicana's 2nd-clearest and 11th-windiest month. For the whole year in context, see Corsicana's year-round climate.

Daytime high
89°
4th warmest
Overnight low
70°
9th coldest
Rainfall
2.4 in
6.3 wet days
Daylight
12 h 12 min
6:14 AM – 6:26 PM
Cloud cover
42%
2nd clearest
Wind
7 mph
11th windiest
Solar energy
5.13 kWh/m²
Travel score
4.7
out of 10

Corsicana is city in and county seat of Navarro County, Texas, United States.

Density
396/km²
people per km²
Founded
1848

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 92°F in the first days to 86°F by the end.

A typical September day in Corsicana reaches about 89°F in the afternoon and slips back to 70°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 97°F. Set against its neighbours, September runs about 6°F cooler than August and about 10°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19374
29274
39274
49273
59273
69173
79173
89172
99172
109072
119072
129071
139071
148971
158971
168970
178970
188969
198869
208869
218868
228868
238768
248767
258767
268766
278666
288666
298665
308565

How September really feels in Corsicana

Once humidity and wind are folded in, September averages 18 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
18
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Corsicana weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan58° / 40°3.07.410.14.7
Feb62° / 43°3.38.110.85.5
Mar69° / 50°3.99.611.86.5
Apr76° / 57°3.8912.87.0
May83° / 66°4.511.213.65.6
Jun90° / 73°2.98.814.14.0
Jul94° / 76°1.86.513.93.0
Aug95° / 76°2.06.213.22.8
Sep89° / 70°2.46.312.24.7
Oct79° / 59°4.27.511.27.2
Nov68° / 49°3.17.510.46.8
Dec60° / 42°3.77.99.95.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27030
37030
46931
56931
66832
76832
86832
96733
106733
116733
126733
136733
146634
156634
166634
176733
186832
196832
207030
217030
227129
237327
247327
257525
267525
277525
287525
297624
307624

Chance of precipitation in September

Any precipitation

Corsicana gets around 2.4 in of rain over 6.3 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 21% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
124
224
324
425
525
625
725
825
924
1024
1124
1224
1324
1423
1523
1622
1722
1821
1921
2020
2119
2218
2318
2417
2517
2616
2716
2816
2916
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 56% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1442038331
2452037331
3552037321
4652036321
5762035311
6762035311
7861935311
8971935301
9971834301
101071834301
111081734291
121181734291
131191733291
141291733281
151391733271
1613101732271
1714101732261
1815111731251
1917121730241
2018121729221
2120131728211
2221141727201
2323141726181
2425151825171
2526151824161
2628161823151
2729161823141
2830161922130
2931161921120
3032161921110

Wind in September

Winds average 7 mph in September.

Across September, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 6:05 AM to 6:24 AM, and sunset from 6:46 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:056:46
212.76:056:45
312.66:066:44
412.66:076:42
512.66:076:41
612.56:086:40
712.56:096:38
812.56:096:37
912.46:106:36
1012.46:116:34
1112.46:116:33
1212.36:126:32
1312.36:126:30
1412.36:136:29
1512.26:146:27
1612.26:146:26
1712.26:156:25
1812.16:166:23
1912.16:166:22
2012.16:176:20
2112.06:186:19
2212.06:186:18
2312.06:196:16
2411.96:206:15
2511.96:206:14
2611.96:216:12
2711.86:226:11
2811.86:226:10
2911.86:236:08
3011.76:246:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.13 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 6.73 kWh/m² in July across the year — September's 5.13 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.2Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in September

Is September a good time to visit Corsicana?

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

4.7
Sightseeing
8th-best month of the year
7.2
Beach & pool
1st-best month of the year

September is a reasonable time to visit Corsicana for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Corsicana in September

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

In September, Corsicana sees daytime highs around 89°F and nights near 70°F. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Corsicana in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Corsicana peaks around August 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateAug 10UV 10Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar6High
Apr9Very high
May10Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Corsicana 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 Corsicana is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar11Good
Apr11Good
May15Moderate
Jun17Moderate
Jul19Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Corsicana?

Corsicana sits at 32.1°N, 96.5°W, 443 ft above sea level, in United States. The nearest listed city is Ennis, 19 mi away.

Topography around Corsicana

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

Within 2 miles, the terrain around Corsicana has only modest variations in elevation — a maximum elevation change of 128 ft around an average of 430 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 217 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 699 ft.

The land around Corsicana is covered by trees (44%), grassland (33%) and artificial surfaces (21%) within 2 miles, grassland (62%) and trees (26%) within 10 miles, and grassland (53%) and trees (31%) within 50 miles.

2 miles
128 ft
10 miles
217 ft
50 miles
699 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ennis 19 mi · Waxahachie 30 mi · Seagoville 38 mi · Lancaster 38 mi · Midlothian 41 mi · DeSoto 41 mi · Cedar Hill 44 mi · Balch Springs 45 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 Corsicana (32.0954°, -96.4689°, elevation 443 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).