Greenville weather in August

In August, Greenville sees average daytime highs of 93°F and overnight lows near 75°F, with 2.0 in of rain across 5.9 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 93°F through the month. The sky is clear or mostly clear about 55% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Greenville's 2nd-clearest and 12th-windiest month. For the whole year in context, see Greenville's year-round climate.

Daytime high
93°
1st warmest
Overnight low
75°
11th coldest
Rainfall
2.0 in
5.9 wet days
Daylight
13 h 12 min
5:51 AM – 7:06 PM
Cloud cover
42%
2nd clearest
Wind
6 mph
12th windiest
Solar energy
6.19 kWh/m²
Travel score
3.5
out of 10

Greenville is city in Hunt County, Texas, United States.

Density
304/km²
people per km²
Founded
1846

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 93°F through the month.

A typical August day in Greenville reaches about 93°F in the afternoon and slips back to 75°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 100°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19476
29476
39476
49476
59476
69476
79476
89476
99375
109375
119375
129375
139375
149375
159375
169375
179375
189375
199374
209374
219374
229274
239274
249274
259274
269274
279274
289273
299173
309173
319173

How August really feels in Greenville

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.

Greenville weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan55° / 37°3.17.40.510.13.8
Feb59° / 40°3.380.610.84.7
Mar66° / 48°4.49.70.311.76.2
Apr74° / 55°5.19.7012.86.9
May81° / 64°5.911.6013.76.1
Jun88° / 72°3.79.4014.14.5
Jul93° / 75°2.26.70143.5
Aug93° / 75°2.05.9013.23.5
Sep87° / 68°3.06.4012.25.5
Oct76° / 57°4.17.9011.27.4
Nov65° / 47°3.67.60.110.36.4
Dec56° / 39°4.17.90.29.94.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27327
37327
47327
57426
67426
77426
87426
97426
107426
117426
127327
137327
147327
157327
167327
177327
187327
197327
207327
217327
227327
237228
247228
257228
267129
277129
287129
297129
307129
317030

Chance of precipitation in August

Any precipitation

Greenville gets around 2.0 in of rain over 5.9 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
118
218
318
418
518
619
719
819
920
1020
1121
1221
1321
1421
1521
1621
1721
1821
1921
2020
2120
2220
2320
2420
2520
2620
2720
2821
2921
3021
3122

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 40% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021340432
2021241432
3021241432
4021242422
5021142422
6031143422
7031143412
8031142412
9041042413
10041042413
11041141413
12051141413
13051140413
14051240413
15051240412
16061339402
17061339402
18061439392
19061539392
20061539382
21061639381
22061739371
23061739371
24061839361
25161839351
26161939351
27161939341
28261939331
29271938330
30372038320
31382037320

Wind in August

Winds average 6 mph in August, the calmest month.

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

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 42 min at the start of August to 12 h 48 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 5:41 AM to 6:02 AM, and sunset from 7:20 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:417:20
213.65:427:19
313.65:427:18
413.65:437:18
513.65:447:17
613.55:447:16
713.55:457:15
813.55:467:14
913.45:467:13
1013.45:477:12
1113.45:487:11
1213.45:497:10
1313.35:497:09
1413.35:507:08
1513.35:517:07
1613.25:517:06
1713.25:527:04
1813.25:537:03
1913.15:547:02
2013.15:547:01
2113.15:557:00
2213.05:566:59
2313.05:566:57
2413.05:576:56
2513.05:586:55
2612.95:586:54
2712.95:596:52
2812.96:006:51
2912.86:016:50
3012.86:016:48
3112.86:026:47

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.19 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.7 kWh/m² in July across the year — August's 6.19 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.4Intense
76.4Intense
86.4Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.2Intense
146.2Intense
156.2Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.0Intense
216.0Intense
226.0Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in August

Is August a good time to visit Greenville?

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

3.5
Sightseeing
11th-best month of the year
6.8
Beach & pool
2nd-best month of the year

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

What to pack for Greenville in August

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

In August, Greenville sees daytime highs around 93°F and nights near 75°F. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in Greenville 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 Greenville peaks around June 21 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highVery highHighModerateJun 21UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Extreme
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Greenville 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 Greenville is worst in July — around 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Jan 17 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr10Good
May14Moderate
Jun16Moderate
Jul20Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov7Good
Dec7Good
Location & terrain

Where is Greenville?

Greenville sits at 33.1°N, 96.1°W, 541 ft above sea level, in United States. The nearest listed city is Rockwall, 25 mi away.

Topography around Greenville

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

Within 2 miles, the terrain around Greenville has only modest variations in elevation — a maximum elevation change of 102 ft around an average of 545 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 269 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 584 ft.

The land around Greenville is covered by trees (40%), grassland (30%) and artificial surfaces (21%) within 2 miles, grassland (58%) and trees (30%) within 10 miles, and grassland (51%) and trees (28%) within 50 miles.

2 miles
102 ft
10 miles
269 ft
50 miles
584 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Rockwall 25 mi · Wylie 26 mi · Terrell 29 mi · McKinney 29 mi · Sulphur Springs 29 mi · Sachse 30 mi · Murphy 30 mi · Rowlett 31 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 Greenville (33.1384°, -96.1108°, elevation 541 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).