McAlester weather in September

In September, McAlester sees average daytime highs of 84°F and overnight lows near 66°F, with 3.3 in of rain across 7.4 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 89°F in the first days to 80°F by the end. The sky is clear or mostly clear about 54% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is McAlester's 1st-clearest and 10th-windiest month. For the whole year in context, see McAlester's year-round climate.

Daytime high
84°
4th warmest
Overnight low
66°
9th coldest
Rainfall
3.3 in
7.4 wet days
Daylight
12 h 12 min
6:11 AM – 6:24 PM
Cloud cover
41%
1st clearest
Wind
6 mph
10th windiest
Solar energy
4.97 kWh/m²
Travel score
6.0
out of 10

McAlester is city in Oklahoma, United States.

Density
439/km²
people per km²
Founded
1872

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 89°F in the first days to 80°F by the end.

A typical September day in McAlester reaches about 84°F in the afternoon and slips back to 66°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 75°F and 93°F. Set against its neighbours, September runs about 7°F cooler than August and about 11°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
18971
28971
38970
48870
58870
68869
78769
88769
98768
108668
118668
128567
138567
148567
158466
168466
178465
188365
198365
208364
218364
228264
238263
248263
258162
268162
278161
288061
298061
308060

How September really feels in McAlester

Once humidity and wind are folded in, September averages 5 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
5
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.

McAlester 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
Jan50° / 33°2.46.619.92.6
Feb55° / 37°2.46.80.910.73.8
Mar64° / 45°4.0100.511.75.7
Apr72° / 53°4.79.7012.96.7
May79° / 62°5.311.8013.86.4
Jun87° / 71°3.58.8014.34.8
Jul92° / 74°2.57.3014.13.6
Aug92° / 73°2.27013.33.8
Sep84° / 66°3.37.4012.26.0
Oct74° / 55°3.67.8011.17.4
Nov62° / 44°3.17.10.310.25.7
Dec52° / 36°2.970.69.73.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27129
37030
47030
56931
66832
76832
86733
96733
106733
116634
126634
136634
146634
156535
166535
176634
186535
196634
206733
216832
226931
237030
247129
257228
267228
277327
287327
297327
307327

Chance of precipitation in September

Any precipitation

McAlester gets around 3.3 in of rain over 7.4 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 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
123
224
324
425
525
626
726
827
927
1027
1128
1228
1328
1428
1528
1628
1728
1828
1927
2026
2125
2224
2323
2422
2521
2620
2720
2819
2919
3019

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
148214126
249214025
3510223924
4611213923
5712213822
6812213821
7813213820
8914203719
91014203718
101115203717
111215203716
121316203616
131416203615
141516203514
151616203513
161716203412
171817203311
182017213211
192117213110
20231721309
21251721299
22271821278
23291820267
24301820247
25321920236
26341919216
27361919206
28381918195
29401918185
30421917175

Wind in September

Winds average 6 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
86calm
96calm
106calm
116calm
126calm
136calm
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 48 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 66 minutes over September. Sunrise moves from 6:00 AM to 6:22 AM, and sunset from 6:46 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:006:46
212.76:006:44
312.76:016:43
412.76:026:42
512.66:036:40
612.66:036:39
712.66:046:37
812.56:056:36
912.56:066:34
1012.46:066:33
1112.46:076:31
1212.46:086:30
1312.36:096:28
1412.36:096:27
1512.36:106:25
1612.26:116:24
1712.26:126:22
1812.16:126:21
1912.16:136:19
2012.16:146:18
2112.06:156:16
2212.06:156:15
2312.06:166:13
2411.96:176:12
2511.96:186:10
2611.86:196:09
2711.86:196:07
2811.86:206:06
2911.76:216:05
3011.76:226:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.97 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 6.67 kWh/m² in July across the year — September's 4.97 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.6Bright
Planning a trip in September

Is September a good time to visit McAlester?

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

6.0
Sightseeing
4th-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for McAlester in September

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

In September, McAlester sees daytime highs around 84°F and nights near 66°F. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in McAlester 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 McAlester peaks around June 23 at about 10 (very high) — 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr9Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in McAlester 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 McAlester is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (November, 5 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJul 1717 µg/m³Nov 185 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb9Good
Mar14Moderate
Apr10Good
May12Good
Jun14Moderate
Jul17Moderate
Aug14Moderate
Sep10Good
Oct6Good
Nov5Good
Dec5Good
Location & terrain

Where is McAlester?

McAlester sits at 34.9°N, 95.8°W, 735 ft above sea level, in United States. The nearest listed city is Ada, 53 mi away.

Topography around McAlester

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

Within 2 miles, the terrain around McAlester has only modest variations in elevation — a maximum elevation change of 315 ft around an average of 719 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 420 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,713 ft.

The land around McAlester is covered by trees (38%), grassland (33%) and artificial surfaces (26%) within 2 miles, trees (47%) and grassland (44%) within 10 miles, and trees (60%) and grassland (36%) within 50 miles.

2 miles
315 ft
10 miles
420 ft
50 miles
1,713 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ada 53 mi · Muskogee 61 mi · Bixby 70 mi · Shawnee 71 mi · Durant 73 mi · Jenks 76 mi · Sapulpa 76 mi · Broken Arrow 77 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 McAlester (34.9334°, -95.7697°, elevation 735 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).