Big Spring weather in September

In September, Big Spring sees average daytime highs of 86°F and overnight lows near 64°F, with 1.9 in of rain across 6.8 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 89°F in the first days to 83°F by the end. The sky is clear or mostly clear about 59% of the time in September, and the air most often feels humid.

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 Big Spring's 5th-clearest and 11th-windiest month. For the whole year in context, see Big Spring's year-round climate.

Daytime high: 86°; 5th warmest
Overnight low: 64°; 9th coldest
Rainfall: 1.9 in; 6.8 wet days
Daylight: 12 h 12 min; 6:34 AM – 6:46 PM
Cloud cover: 37%; 5th clearest
Wind: 9 mph; 11th windiest
Solar energy: 5.49 kWh/m²
Travel score: 5.7; out of 10

Big Spring is city in Howard County, Texas, United States.

Density: 581/km²; people per km²
Founded: 1882

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

← August Big Spring year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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 83°F by the end.

A typical September day in Big Spring reaches about 86°F in the afternoon and slips back to 64°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 94°F. Set against its neighbours, September runs about 7°F cooler than August and about 9°F warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°F)	89	89	89	89	88	88	88	87	87	87	87	86	86	86	86	85	85	85	85	85	85	84	84	84	84	84	83	83	83	83
Avg low (°F)	69	68	68	68	67	67	67	67	66	66	66	66	65	65	65	65	64	64	64	63	63	62	62	62	61	61	61	60	60	60

	Avg high (°F)	Avg low (°F)
1	89	69
2	89	68
3	89	68
4	89	68
5	88	67
6	88	67
7	88	67
8	87	67
9	87	66
10	87	66
11	87	66
12	86	66
13	86	65
14	86	65
15	86	65
16	85	65
17	85	64
18	85	64
19	85	64
20	85	63
21	85	63
22	84	62
23	84	62
24	84	62
25	84	61
26	84	61
27	83	61
28	83	60
29	83	60
30	83	60

How September really feels in Big Spring

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

heat index over the day's high

Days feeling ≤ 32°F

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.

Big Spring weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	57° / 34°	0.8	3.3	0.8	10.1	5.1
Feb	62° / 37°	1.1	4	0.5	10.8	6.3
Mar	70° / 45°	1.5	4.6	0.2	11.8	7.6
Apr	78° / 53°	1.5	4.8	0.1	12.8	7.9
May	86° / 62°	2.9	8.8	0	13.6	5.4
Jun	92° / 69°	1.7	7.8	0	14.1	3.6
Jul	94° / 72°	1.5	5.4	0	13.9	3.2
Aug	92° / 71°	1.9	6.2	0	13.2	3.7
Sep	86° / 64°	1.9	6.8	0	12.2	5.7
Oct	77° / 54°	1.7	5.1	0.1	11.2	8.0
Nov	66° / 43°	1.1	3.5	0.4	10.3	7.3
Dec	58° / 35°	1.1	3.8	0.8	9.9	5.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	77	77	77	76	76	76	75	75	74	74	72	72	72	71	71	72	72	72	73	73	75	75	76	77	77	79	79	79	79	79
Cloudier (%)	23	23	23	24	24	24	25	25	26	26	28	28	28	29	29	28	28	28	27	27	25	25	24	23	23	21	21	21	21	21

	Clearer (%)	Cloudier (%)
1	77	23
2	77	23
3	77	23
4	76	24
5	76	24
6	76	24
7	75	25
8	75	25
9	74	26
10	74	26
11	72	28
12	72	28
13	72	28
14	71	29
15	71	29
16	72	28
17	72	28
18	72	28
19	73	27
20	73	27
21	75	25
22	75	25
23	76	24
24	77	23
25	77	23
26	79	21
27	79	21
28	79	21
29	79	21
30	79	21

Chance of precipitation in September

Any precipitation

Big Spring gets around 1.9 in of rain over 6.8 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 23% and peaks near 27% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	21	21	22	23	23	24	25	25	26	26	27	27	27	27	27	27	27	26	25	25	23	22	21	20	19	18	17	17	17	17

	Rain chance (%)
1	21
2	21
3	22
4	23
5	23
6	24
7	25
8	25
9	26
10	26
11	27
12	27
13	27
14	27
15	27
16	27
17	27
18	26
19	25
20	25
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	17
29	17
30	17

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	14	15	15	16	16	17	17	18	18	19	20	21	22	23	25	26	28	30	33	35	38	41	44	46	48	50	53	54	56	57
Comfortable (%)	31	31	31	30	30	29	29	28	28	27	27	26	26	25	25	24	24	23	23	22	22	21	21	20	20	20	20	20	20	20
Humid (%)	39	39	39	39	39	39	39	39	39	39	39	38	38	37	36	35	34	33	32	30	29	28	26	25	24	23	21	20	19	18
Muggy (%)	16	16	15	15	15	15	15	15	15	15	15	15	15	15	14	14	13	13	12	12	11	10	9	9	8	7	6	6	5	5

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	31	39	16
2	15	31	39	16
3	15	31	39	15
4	16	30	39	15
5	16	30	39	15
6	17	29	39	15
7	17	29	39	15
8	18	28	39	15
9	18	28	39	15
10	19	27	39	15
11	20	27	39	15
12	21	26	38	15
13	22	26	38	15
14	23	25	37	15
15	25	25	36	14
16	26	24	35	14
17	28	24	34	13
18	30	23	33	13
19	33	23	32	12
20	35	22	30	12
21	38	22	29	11
22	41	21	28	10
23	44	21	26	9
24	46	20	25	9
25	48	20	24	8
26	50	20	23	7
27	53	20	21	6
28	54	20	20	6
29	56	20	19	5
30	57	20	18	5

Wind in September

Winds average 9 mph in September.

Across September, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (mph)	8	8	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (mph)	Feels
1	8	light breeze
2	8	light breeze
3	8	light breeze
4	8	light breeze
5	8	light breeze
6	8	light breeze
7	8	light breeze
8	8	light breeze
9	8	light breeze
10	9	light breeze
11	9	light breeze
12	9	light breeze
13	9	light breeze
14	9	light breeze
15	9	light breeze
16	9	light breeze
17	9	light breeze
18	9	light breeze
19	9	light breeze
20	9	light breeze
21	9	light breeze
22	9	light breeze
23	9	light breeze
24	9	light breeze
25	9	light breeze
26	9	light breeze
27	9	light breeze
28	9	light breeze
29	9	light breeze
30	9	light breeze

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 6:25 AM to 6:44 AM, and sunset from 7:06 PM to 6:27 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.7	12.7	12.6	12.6	12.6	12.5	12.5	12.5	12.4	12.4	12.4	12.3	12.3	12.3	12.2	12.2	12.2	12.1	12.1	12.1	12.0	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.8	11.7
Sunrise (AM)	6:25	6:25	6:26	6:27	6:27	6:28	6:29	6:29	6:30	6:31	6:31	6:32	6:32	6:33	6:34	6:34	6:35	6:36	6:36	6:37	6:38	6:38	6:39	6:40	6:40	6:41	6:42	6:42	6:43	6:44
Sunset (PM)	7:06	7:05	7:04	7:03	7:01	7:00	6:58	6:57	6:56	6:54	6:53	6:52	6:50	6:49	6:47	6:46	6:45	6:43	6:42	6:41	6:39	6:38	6:36	6:35	6:34	6:32	6:31	6:30	6:28	6:27

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.7	6:25	7:06
2	12.7	6:25	7:05
3	12.6	6:26	7:04
4	12.6	6:27	7:03
5	12.6	6:27	7:01
6	12.5	6:28	7:00
7	12.5	6:29	6:58
8	12.5	6:29	6:57
9	12.4	6:30	6:56
10	12.4	6:31	6:54
11	12.4	6:31	6:53
12	12.3	6:32	6:52
13	12.3	6:32	6:50
14	12.3	6:33	6:49
15	12.2	6:34	6:47
16	12.2	6:34	6:46
17	12.2	6:35	6:45
18	12.1	6:36	6:43
19	12.1	6:36	6:42
20	12.1	6:37	6:41
21	12.0	6:38	6:39
22	12.0	6:38	6:38
23	12.0	6:39	6:36
24	11.9	6:40	6:35
25	11.9	6:40	6:34
26	11.9	6:41	6:32
27	11.8	6:42	6:31
28	11.8	6:42	6:30
29	11.8	6:43	6:28
30	11.7	6:44	6:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.49 kWh/m².

For context, solar energy here swings from a low near 3.11 kWh/m² to a high of 7.23 kWh/m² in June across the year — September's 5.49 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	6.0	5.9	5.9	5.8	5.8	5.8	5.7	5.7	5.6	5.6	5.5	5.5	5.5	5.5	5.4	5.4	5.4	5.4	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.2	5.2	5.2	5.2	5.1
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.0	Bright
2	5.9	Bright
3	5.9	Bright
4	5.8	Bright
5	5.8	Bright
6	5.8	Bright
7	5.7	Bright
8	5.7	Bright
9	5.6	Bright
10	5.6	Bright
11	5.5	Bright
12	5.5	Bright
13	5.5	Bright
14	5.5	Bright
15	5.4	Bright
16	5.4	Bright
17	5.4	Bright
18	5.4	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.3	Bright
24	5.3	Bright
25	5.3	Bright
26	5.2	Bright
27	5.2	Bright
28	5.2	Bright
29	5.2	Bright
30	5.1	Bright

Planning a trip in September

Is September a good time to visit Big Spring?

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

5.7

Sightseeing

6th-best month of the year

7.6

Beach & pool

1st-best month of the year

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

What to pack for Big Spring in September

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

In September, Big Spring sees daytime highs around 86°F and nights near 64°F. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Big Spring in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Big Spring peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	4	5	6	10	10	11	11	11	9	6	5	3
Level	Moderate	High	High	Very high	Extreme	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	4	Moderate
Feb	5	High
Mar	6	High
Apr	10	Very high
May	10	Extreme
Jun	11	Extreme
Jul	11	Extreme
Aug	11	Extreme
Sep	9	Very high
Oct	6	High
Nov	5	Moderate
Dec	3	Moderate

Location & terrain

Where is Big Spring?

Big Spring sits at 32.3°N, 101.5°W, 2,441 ft above sea level, in United States. The nearest listed city is Midland, 39 mi away.

Topography around Big Spring

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

Within 2 miles, the terrain around Big Spring has only modest variations in elevation — a maximum elevation change of 417 ft around an average of 2,497 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 571 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,247 ft.

The land around Big Spring is covered by artificial surfaces (38%), grassland (29%) and trees (20%) within 2 miles, grassland (51%) and cropland (28%) within 10 miles, and grassland (66%) and cropland (24%) within 50 miles.

2 miles

417 ft

artificial surfaces 38%

10 miles

571 ft

grassland 51%

50 miles

1,247 ft

grassland 66%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← August Big Spring year-round climate October →Best places to visit in September

September weather nearby: Midland 39 mi · Odessa 59 mi · West Odessa 66 mi · San Angelo 82 mi · Lubbock 94 mi · Hobbs 101 mi · Abilene 103 mi · Plainview 134 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

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 Big Spring (32.2504°, -101.4787°, elevation 2,441 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	89	69
2	89	68
3	89	68
4	89	68
5	88	67
6	88	67
7	88	67
8	87	67
9	87	66
10	87	66
11	87	66
12	86	66
13	86	65
14	86	65
15	86	65
16	85	65
17	85	64
18	85	64
19	85	64
20	85	63
21	85	63
22	84	62
23	84	62
24	84	62
25	84	61
26	84	61
27	83	61
28	83	60
29	83	60
30	83	60

	Clearer (%)	Cloudier (%)
1	77	23
2	77	23
3	77	23
4	76	24
5	76	24
6	76	24
7	75	25
8	75	25
9	74	26
10	74	26
11	72	28
12	72	28
13	72	28
14	71	29
15	71	29
16	72	28
17	72	28
18	72	28
19	73	27
20	73	27
21	75	25
22	75	25
23	76	24
24	77	23
25	77	23
26	79	21
27	79	21
28	79	21
29	79	21
30	79	21

	Rain chance (%)
1	21
2	21
3	22
4	23
5	23
6	24
7	25
8	25
9	26
10	26
11	27
12	27
13	27
14	27
15	27
16	27
17	27
18	26
19	25
20	25
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	17
29	17
30	17

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	31	39	16
2	15	31	39	16
3	15	31	39	15
4	16	30	39	15
5	16	30	39	15
6	17	29	39	15
7	17	29	39	15
8	18	28	39	15
9	18	28	39	15
10	19	27	39	15
11	20	27	39	15
12	21	26	38	15
13	22	26	38	15
14	23	25	37	15
15	25	25	36	14
16	26	24	35	14
17	28	24	34	13
18	30	23	33	13
19	33	23	32	12
20	35	22	30	12
21	38	22	29	11
22	41	21	28	10
23	44	21	26	9
24	46	20	25	9
25	48	20	24	8
26	50	20	23	7
27	53	20	21	6
28	54	20	20	6
29	56	20	19	5
30	57	20	18	5

	Avg high (°F)	Avg low (°F)
1	89	69
2	89	68
3	89	68
4	89	68
5	88	67
6	88	67
7	88	67
8	87	67
9	87	66
10	87	66
11	87	66
12	86	66
13	86	65
14	86	65
15	86	65
16	85	65
17	85	64
18	85	64
19	85	64
20	85	63
21	85	63
22	84	62
23	84	62
24	84	62
25	84	61
26	84	61
27	83	61
28	83	60
29	83	60
30	83	60

	Clearer (%)	Cloudier (%)
1	77	23
2	77	23
3	77	23
4	76	24
5	76	24
6	76	24
7	75	25
8	75	25
9	74	26
10	74	26
11	72	28
12	72	28
13	72	28
14	71	29
15	71	29
16	72	28
17	72	28
18	72	28
19	73	27
20	73	27
21	75	25
22	75	25
23	76	24
24	77	23
25	77	23
26	79	21
27	79	21
28	79	21
29	79	21
30	79	21

	Rain chance (%)
1	21
2	21
3	22
4	23
5	23
6	24
7	25
8	25
9	26
10	26
11	27
12	27
13	27
14	27
15	27
16	27
17	27
18	26
19	25
20	25
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	17
29	17
30	17

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	31	39	16
2	15	31	39	16
3	15	31	39	15
4	16	30	39	15
5	16	30	39	15
6	17	29	39	15
7	17	29	39	15
8	18	28	39	15
9	18	28	39	15
10	19	27	39	15
11	20	27	39	15
12	21	26	38	15
13	22	26	38	15
14	23	25	37	15
15	25	25	36	14
16	26	24	35	14
17	28	24	34	13
18	30	23	33	13
19	33	23	32	12
20	35	22	30	12
21	38	22	29	11
22	41	21	28	10
23	44	21	26	9
24	46	20	25	9
25	48	20	24	8
26	50	20	23	7
27	53	20	21	6
28	54	20	20	6
29	56	20	19	5
30	57	20	18	5

	Avg high (°F)	Avg low (°F)
1	89	69
2	89	68
3	89	68
4	89	68
5	88	67
6	88	67
7	88	67
8	87	67
9	87	66
10	87	66
11	87	66
12	86	66
13	86	65
14	86	65
15	86	65
16	85	65
17	85	64
18	85	64
19	85	64
20	85	63
21	85	63
22	84	62
23	84	62
24	84	62
25	84	61
26	84	61
27	83	61
28	83	60
29	83	60
30	83	60

	Clearer (%)	Cloudier (%)
1	77	23
2	77	23
3	77	23
4	76	24
5	76	24
6	76	24
7	75	25
8	75	25
9	74	26
10	74	26
11	72	28
12	72	28
13	72	28
14	71	29
15	71	29
16	72	28
17	72	28
18	72	28
19	73	27
20	73	27
21	75	25
22	75	25
23	76	24
24	77	23
25	77	23
26	79	21
27	79	21
28	79	21
29	79	21
30	79	21

	Rain chance (%)
1	21
2	21
3	22
4	23
5	23
6	24
7	25
8	25
9	26
10	26
11	27
12	27
13	27
14	27
15	27
16	27
17	27
18	26
19	25
20	25
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	17
29	17
30	17

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	14	31	39	16
2	15	31	39	16
3	15	31	39	15
4	16	30	39	15
5	16	30	39	15
6	17	29	39	15
7	17	29	39	15
8	18	28	39	15
9	18	28	39	15
10	19	27	39	15
11	20	27	39	15
12	21	26	38	15
13	22	26	38	15
14	23	25	37	15
15	25	25	36	14
16	26	24	35	14
17	28	24	34	13
18	30	23	33	13
19	33	23	32	12
20	35	22	30	12
21	38	22	29	11
22	41	21	28	10
23	44	21	26	9
24	46	20	25	9
25	48	20	24	8
26	50	20	23	7
27	53	20	21	6
28	54	20	20	6
29	56	20	19	5
30	57	20	18	5