Shelbyville weather in August

In August, Shelbyville sees average daytime highs of 87°F and overnight lows near 69°F, with 3.3 in of rain across 11 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 87°F through the month. The sky is clear or mostly clear about 33% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Shelbyville's 4th-clearest and 12th-windiest month. For the whole year in context, see Shelbyville's year-round climate.

Daytime high
87°
2nd warmest
Overnight low
69°
11th coldest
Rainfall
3.3 in
11 wet days
Daylight
13 h 24 min
5:09 AM – 6:30 PM
Cloud cover
56%
4th clearest
Wind
4 mph
12th windiest
Solar energy
5.58 kWh/m²
Travel score
4.6
out of 10

Shelbyville is city in Bedford County, Tennessee, United States.

Density
443/km²
people per km²
Founded
1810

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 87°F through the month.

A typical August day in Shelbyville reaches about 87°F in the afternoon and slips back to 69°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 94°F. Set against its neighbours, August runs on par with July and about 5°F warmer than September.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18870
28870
38870
48870
58870
68870
78870
88770
98770
108770
118770
128770
138770
148769
158769
168769
178769
188769
198769
208769
218769
228769
238769
248769
258769
268768
278768
288668
298668
308668
318667

How August really feels in Shelbyville

Once humidity and wind are folded in, August averages 26 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
26
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.

Shelbyville 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
Jan48° / 32°4.610.31.29.91.8
Feb53° / 35°4.810.81.310.72.8
Mar61° / 42°5.311.50.611.74.9
Apr70° / 51°4.810.4012.96.4
May78° / 60°4.512.1013.86.4
Jun85° / 68°4.213.6014.44.9
Jul88° / 71°4.513.2014.24.2
Aug87° / 69°3.311013.34.6
Sep82° / 63°3.38.1012.26.4
Oct71° / 51°3.48.1011.17.1
Nov60° / 41°4.08.50.210.15.0
Dec51° / 35°5.110.80.79.62.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
45050
54951
65149
75149
85149
95050
105050
115149
125149
135149
145248
155248
165347
175347
185347
195347
205446
215446
225446
235446
245446
255545
265644
275644
285644
295644
305644
315743

Chance of precipitation in August

Any precipitation

Shelbyville gets around 3.3 in of rain over 11 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 36% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
341
440
540
640
740
839
939
1039
1139
1238
1338
1437
1537
1636
1735
1835
1934
2033
2133
2233
2333
2433
2533
2633
2732
2832
2932
3031
3131

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 75% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1031236471
2041337461
3141337451
4141337441
5141337441
6151437431
7151437421
8151536421
9161536411
10161635411
11161735411
12161734401
13171834401
14171834391
15171934391
16171934381
17181934371
18182035361
19182036351
20182037340
21181939330
22171940320
23181941310
24181842310
25181843300
26181844280
27191944270
28291944260
29292045240
302102144220
313112144210

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 48 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 60 minutes over August. Sunrise moves from 4:58 AM to 5:21 AM, and sunset from 6:46 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:586:46
213.84:586:45
313.84:596:44
413.75:006:43
513.75:016:42
613.75:016:42
713.65:026:41
813.65:036:39
913.65:046:38
1013.55:056:37
1113.55:056:36
1213.55:066:35
1313.45:076:34
1413.45:086:33
1513.45:096:32
1613.45:096:30
1713.35:106:29
1813.35:116:28
1913.25:126:27
2013.25:136:25
2113.25:136:24
2213.15:146:23
2313.15:156:22
2413.15:166:20
2513.05:176:19
2613.05:176:18
2713.05:186:16
2812.95:196:15
2912.95:206:13
3012.95:206:12
3112.85:216:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.58 kWh/m².

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 6.16 kWh/m² in June across the year — August's 5.58 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Shelbyville?

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

4.6
Sightseeing
8th-best month of the year
6.6
Beach & pool
2nd-best month of the year

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

What to pack for Shelbyville in August

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

In August, Shelbyville sees daytime highs around 87°F and nights near 69°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Shelbyville in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shelbyville peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 13UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Shelbyville 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 Shelbyville is worst in July — around 18 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (January, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1618 µg/m³Jan 16 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar9Good
Apr10Good
May13Moderate
Jun15Moderate
Jul18Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Shelbyville?

Shelbyville sits at 35.5°N, 86.5°W, 755 ft above sea level, in United States. The nearest listed city is Tullahoma, 16 mi away.

Topography around Shelbyville

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

Within 2 miles, the terrain around Shelbyville has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 774 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 663 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,054 ft.

The land around Shelbyville is covered by trees (42%) and grassland (40%) within 2 miles, grassland (47%) and trees (45%) within 10 miles, and trees (63%) and grassland (26%) within 50 miles.

2 miles
197 ft
10 miles
663 ft
50 miles
2,054 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Tullahoma 16 mi · Murfreesboro 25 mi · Spring Hill 32 mi · Columbia 34 mi · Smyrna 35 mi · La Vergne 37 mi · Franklin 38 mi · Brentwood Estates 42 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 Shelbyville (35.4834°, -86.4603°, elevation 755 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).