Greeneville weather in May

In May, Greeneville sees average daytime highs of 74°F and overnight lows near 55°F, with 4.1 in of rain across 13.4 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 71°F in the first days to 77°F by the end. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Greeneville's 8th-clearest and 7th-windiest month. For the whole year in context, see Greeneville's year-round climate.

Daytime high
74°
5th warmest
Overnight low
55°
8th coldest
Rainfall
4.1 in
13.4 wet days
Daylight
13 h 54 min
5:30 AM – 7:25 PM
Cloud cover
61%
8th clearest
Wind
5 mph
7th windiest
Solar energy
5.91 kWh/m²
Travel score
6.3
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 71°F in the first days to 77°F by the end.

A typical May day in Greeneville reaches about 74°F in the afternoon and slips back to 55°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 64°F and 82°F. Set against its neighbours, May runs about 7°F warmer than April and about 7°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17051
27151
37151
47151
57152
67252
77252
87253
97253
107353
117353
127354
137354
147354
157454
167455
177455
187455
197455
207556
217556
227556
237657
247657
257657
267658
277758
287758
297758
307859
317859

How May really feels in Greeneville

Once humidity and wind are folded in, May 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

May 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 May compares with the rest of the year at a glance. May is the 5th-warmest and 5th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 21% of May, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44654
54753
64852
74852
84852
94753
104753
114753
124852
134852
144852
154852
164852
174852
184753
194753
204654
214654
224555
234555
244654
254654
264654
274654
284555
294654
304555
314555

Chance of precipitation in May

Any precipitation

Greeneville gets around 4.1 in of rain over 13.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 44% and peaks near 47% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
147
247
346
446
546
646
745
845
945
1045
1144
1244
1343
1443
1542
1642
1741
1841
1941
2041
2141
2242
2342
2442
2542
2643
2743
2844
2944
3045
3145

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 45% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1712180
2692290
36723100
46524110
56225130
66026140
75727151
85528161
95428171
105229181
115129191
124930201
134830212
144630222
154530232
164430242
174329253
184229263
194128283
204028294
213827305
223727315
233527336
243326346
253226357
263026358
272926369
2827263710
2926253711
3025253812
3124243814

Wind in May

Winds average 5 mph in May.

Across May, 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:45 AM to 5:21 AM, and sunset from 7:12 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:457:12
213.55:447:13
313.55:437:14
413.65:427:15
513.65:417:16
613.65:397:16
713.65:387:17
813.75:377:18
913.75:367:19
1013.75:357:20
1113.85:357:21
1213.85:347:22
1313.85:337:22
1413.95:327:23
1513.95:317:24
1613.95:307:25
1713.95:297:26
1814.05:297:27
1914.05:287:27
2014.05:277:28
2114.05:267:29
2214.15:267:30
2314.15:257:31
2414.15:257:31
2514.15:247:32
2614.25:237:33
2714.25:237:34
2814.25:227:34
2914.25:227:35
3014.25:217:36
3114.35:217:36

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.91 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 — May's 5.91 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Bright
196.0Bright
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Is May a good time to visit Greeneville?

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

6.3
Sightseeing
3rd-best month of the year
4.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Greeneville for sightseeing.

What to pack for Greeneville in May

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

In May, Greeneville sees daytime highs around 74°F and nights near 55°F. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Greeneville in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. 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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).