Greeneville weather in August

In August, Greeneville sees average daytime highs of 83°F and overnight lows near 65°F, with 3.4 in of rain across 12.1 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Greeneville's 4th-clearest and 12th-windiest month. For the whole year in context, see Greeneville's year-round climate.

Daytime high
83°
2nd warmest
Overnight low
65°
11th coldest
Rainfall
3.4 in
12.1 wet days
Daylight
13 h 24 min
5:54 AM – 7:17 PM
Cloud cover
56%
4th clearest
Wind
3 mph
12th windiest
Solar energy
5.49 kWh/m²
Travel score
5.7
out of 10

Greeneville is town in and county seat of Greene County, Tennessee, United States.

Density
343/km²
people per km²
Founded
1783

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 83°F through the month.

A typical August day in Greeneville reaches about 83°F in the afternoon and slips back to 65°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 88°F. Set against its neighbours, August runs on par with July and about 5°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18366
28366
38366
48365
58365
68365
78365
88365
98365
108365
118365
128365
138365
148365
158365
168365
178365
188365
198365
208365
218264
228264
238264
248264
258264
268264
278264
288264
298263
308263
318263

How August really feels in Greeneville

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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Greeneville 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
Jan46° / 29°4.112.23.59.81.1
Feb50° / 32°3.811.83.510.62.0
Mar58° / 38°4.6132.111.74.0
Apr67° / 47°4.212.10.512.95.9
May74° / 55°4.113.4013.96.3
Jun81° / 62°3.714.8014.45.7
Jul83° / 66°4.015014.25.1
Aug83° / 65°3.412.1013.45.7
Sep78° / 58°3.49.2012.27.0
Oct68° / 47°2.98.70.211.16.6
Nov57° / 37°3.49.70.710.14.1
Dec49° / 32°4.211.42.69.61.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35248
45149
55149
65149
75248
85248
95248
105248
115248
125248
135248
145446
155446
165446
175545
185545
195644
205644
215743
225743
235743
245644
255644
265644
275743
285743
295743
305743
315842

Chance of precipitation in August

Any precipitation

Greeneville gets around 3.4 in of rain over 12.1 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 40% and peaks near 48% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
247
347
446
546
645
744
844
943
1043
1143
1243
1342
1442
1541
1641
1740
1839
1938
2038
2137
2237
2336
2436
2535
2635
2735
2834
2934
3034
3133

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12827549
22828539
32828539
42829538
52929528
62930527
72930527
82931517
921032507
1021032497
1121032496
1221033496
1321033496
1421133485
1521133485
1621233485
1731234484
1831234484
1931234473
2031234473
2131235473
2231235472
2331235482
2441235482
2541335472
2641335471
2751434461
2851434451
2961534441
3061634421
3171735411

Wind in August

Winds average 3 mph in August, the calmest month.

Across August, daily wind ranges from about 3 mph on the calmest days to 3 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 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 66 minutes over August. Sunrise moves from 5:42 AM to 6:06 AM, and sunset from 7:33 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:427:33
213.85:427:32
313.85:437:31
413.85:447:30
513.75:457:29
613.75:467:28
713.75:467:27
813.65:477:26
913.65:487:25
1013.65:497:24
1113.65:507:23
1213.55:517:22
1313.55:517:21
1413.55:527:19
1513.45:537:18
1613.45:547:17
1713.45:557:16
1813.35:567:14
1913.35:567:13
2013.25:577:12
2113.25:587:11
2213.25:597:09
2313.16:007:08
2413.16:007:07
2513.16:017:05
2613.06:027:04
2713.06:037:02
2813.06:047:01
2912.96:047:00
3012.96:056:58
3112.86:066:57

Solar energy in August

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 6.12 kWh/m² in June across the year — August's 5.49 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Greeneville?

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

5.7
Sightseeing
5th-best month of the year
6.5
Beach & pool
1st-best month of the year

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

What to pack for Greeneville in August

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

In August, Greeneville sees daytime highs around 83°F and nights near 65°F. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Greeneville 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 Greeneville peaks around July 12 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 highHighModerateJul 12UV 10Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Greeneville 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 Greeneville is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1618 µg/m³Dec 217 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr11Good
May13Moderate
Jun16Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec7Good
Location & terrain

Where is Greeneville?

Greeneville sits at 36.2°N, 82.8°W, 1,519 ft above sea level, in United States. The nearest listed city is Morristown, 26 mi away.

Topography around Greeneville

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

Within 2 miles, the terrain around Greeneville has only modest variations in elevation — a maximum elevation change of 390 ft around an average of 1,526 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,917 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,919 ft.

The land around Greeneville is covered by trees (44%) and grassland (41%) within 2 miles, grassland (53%) and trees (42%) within 10 miles, and trees (76%) and grassland (21%) within 50 miles.

2 miles
390 ft
10 miles
2,917 ft
50 miles
5,919 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Morristown 26 mi · Johnson City 29 mi · Kingsport 30 mi · Asheville 42 mi · Sevierville 45 mi · Bristol 47 mi · Bristol 47 mi · Gatlinburg 49 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 Greeneville (36.1632°, -82.831°, elevation 1,519 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).