Flower Mound weather in August

In August, Flower Mound sees average daytime highs of 94°F and overnight lows near 76°F, with 2.0 in of rain across 5.2 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 95°F in the first days to 92°F by the end. The sky is clear or mostly clear about 58% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 36 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Flower Mound's 1st-clearest and 12th-windiest month. For the whole year in context, see Flower Mound's year-round climate.

Daytime high
94°
2nd warmest
Overnight low
76°
11th coldest
Rainfall
2.0 in
5.2 wet days
Daylight
13 h 12 min
5:56 AM – 7:09 PM
Cloud cover
40%
1st clearest
Wind
7 mph
12th windiest
Solar energy
6.23 kWh/m²
Travel score
3.3
out of 10

Flower Mound is town in Denton County, Texas, United States.

Density
619/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 95°F in the first days to 92°F by the end.

A typical August day in Flower Mound reaches about 94°F in the afternoon and slips back to 76°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 86°F and 100°F. Set against its neighbours, August runs on par with July and about 7°F warmer than September.

70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19577
29577
39577
49577
59577
69577
79576
89576
99576
109476
119476
129476
139476
149476
159476
169476
179476
189476
199476
209475
219375
229375
239375
249375
259375
269375
279374
289274
299274
309274
319274

How August really feels in Flower Mound

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Flower Mound weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan56° / 38°2.76.90.510.14.1
Feb60° / 41°2.77.10.610.85.2
Mar67° / 49°3.78.90.211.76.5
Apr75° / 56°4.18.2012.87.2
May82° / 65°5.210.9013.76.0
Jun90° / 73°3.27.7014.14.3
Jul94° / 76°1.85.40143.2
Aug94° / 76°2.05.2013.23.3
Sep87° / 69°2.86.1012.25.3
Oct77° / 58°3.87.5011.27.4
Nov66° / 47°3.56.80.110.36.7
Dec57° / 40°3.46.90.39.94.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 26%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27525
37426
47426
57426
67426
77525
87525
97525
107426
117327
127327
137327
147327
157228
167327
177327
187327
197327
207327
217426
227426
237426
247426
257426
267426
277426
287426
297426
307327
317327

Chance of precipitation in August

Any precipitation

Flower Mound gets around 2.0 in of rain over 5.2 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 17% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
116
216
316
416
516
616
716
817
917
1017
1117
1217
1317
1417
1517
1617
1717
1817
1917
2017
2117
2217
2317
2417
2517
2618
2718
2819
2919
3020
3120

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 80% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021348352
2021349352
3021249352
4021249352
5021249352
6021249352
7021149352
8031148362
9031147362
10031147362
11031246372
12041245372
13041244372
14041344372
15041443372
16041443372
17041543371
18041543361
19041643361
20041743351
21041743341
22041843341
23041943331
24041943321
25042043311
26052043311
27152143301
28152143300
29152242290
30262241290
31262240290

Wind in August

Winds average 7 mph in August, the calmest month.

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

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 36 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over August. Sunrise moves from 5:45 AM to 6:06 AM, and sunset from 7:24 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:457:24
213.65:467:23
313.65:467:22
413.65:477:21
513.55:487:20
613.55:497:20
713.55:497:19
813.55:507:18
913.45:517:17
1013.45:517:16
1113.45:527:15
1213.35:537:14
1313.35:537:13
1413.35:547:12
1513.35:557:10
1613.25:567:09
1713.25:567:08
1813.25:577:07
1913.15:587:06
2013.15:587:05
2113.15:597:04
2213.06:007:02
2313.06:007:01
2413.06:017:00
2512.96:026:59
2612.96:036:57
2712.96:036:56
2812.86:046:55
2912.86:056:54
3012.86:056:52
3112.76:066:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.23 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 6.8 kWh/m² in July across the year — August's 6.23 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.4Intense
96.4Intense
106.4Intense
116.3Intense
126.3Intense
136.3Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.0Intense
236.0Intense
246.0Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Flower Mound

In seasonPeak

In August, Flower Mound sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Flower Mound sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is August a good time to visit Flower Mound?

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

3.3
Sightseeing
11th-best month of the year
6.6
Beach & pool
5th-best month of the year

August is a weaker month for outdoor sightseeing in Flower Mound. The water and warmth also suit a beach or pool day.

What to pack for Flower Mound in August

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

In August, Flower Mound sees daytime highs around 94°F and nights near 76°F. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Flower Mound in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Flower Mound peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highExtremeVery highHighModerateJul 14UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Extreme
Jul10Extreme
Aug10Very high
Sep7Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Flower Mound in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Flower Mound is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× 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
Feb8Good
Mar10Good
Apr11Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Flower Mound?

Flower Mound sits at 33.0°N, 97.1°W, 604 ft above sea level, in United States. The nearest listed city is Southlake, 5.6 mi away.

Topography around Flower Mound

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

Within 2 miles, the terrain around Flower Mound has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 597 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 387 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,043 ft.

The land around Flower Mound is covered by trees (37%), artificial surfaces (25%) and water (21%) within 2 miles, trees (32%), artificial surfaces (31%) and grassland (25%) within 10 miles, and grassland (49%) and trees (25%) within 50 miles.

2 miles
157 ft
10 miles
387 ft
50 miles
1,043 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Southlake 5.6 mi · Grapevine 5.6 mi · Highland Village 6.2 mi · Coppell 6.2 mi · Lewisville 6.2 mi · Corinth 9.9 mi · Colleyville 9.9 mi · Keller 11 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 Flower Mound (33.0146°, -97.097°, elevation 604 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).