Greenville weather in May

In May, Greenville sees average daytime highs of 82°F and overnight lows near 65°F, with 4.7 in of rain across 10.8 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 78°F in the first days to 85°F by the end. The sky is clear or mostly clear about 37% of the time in May, and the air most often feels muggy.

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

Daytime high
82°
5th warmest
Overnight low
65°
8th coldest
Rainfall
4.7 in
10.8 wet days
Daylight
13 h 42 min
5:09 AM – 6:52 PM
Cloud cover
55%
8th clearest
Wind
7 mph
7th windiest
Solar energy
6.16 kWh/m²
Travel score
6.2
out of 10

Greenville is city in Washington County, Mississippi, United States.

Density
449/km²
people per km²
Founded
1824

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 78°F in the first days to 85°F by the end.

A typical May day in Greenville reaches about 82°F in the afternoon and slips back to 65°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 88°F. Set against its neighbours, May runs about 7°F warmer than April and about 6°F cooler than June.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
17860
27860
37860
47961
57961
67962
77962
88062
98062
108063
118063
128163
138164
148164
158164
168265
178265
188265
198265
208366
218366
228366
238367
248367
258467
268468
278468
288468
298569
308569
318569

How May really feels in Greenville

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.

Greenville weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan54° / 37°4.79.9103.3
Feb58° / 40°4.99.610.84.2
Mar66° / 48°5.311.211.76.0
Apr74° / 56°5.39.512.86.9
May82° / 65°4.710.813.76.2
Jun88° / 72°3.49.714.24.6
Jul90° / 75°3.410.9143.8
Aug91° / 74°3.18.913.23.9
Sep86° / 68°3.16.412.25.7
Oct75° / 56°4.27.611.27.4
Nov64° / 46°3.88.710.36.1
Dec56° / 39°5.29.79.83.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35149
45149
55050
65050
75050
84951
94951
105050
115050
125149
135149
145248
155248
165446
175446
185545
195545
205545
215545
225545
235545
245545
255545
265545
275545
285446
295446
305446
315545

Chance of precipitation in May

Any precipitation

Greenville gets around 4.7 in of rain over 10.8 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 34% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
534
634
734
833
933
1032
1132
1232
1331
1431
1531
1631
1731
1832
1932
2033
2133
2234
2335
2435
2536
2636
2736
2837
2937
3037
3137

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1381925162
2361925182
3351926192
4331826202
5311826213
6301827233
7281826243
8271826254
9261726264
10261725274
11251725295
12241725305
13231624316
14221624326
15221623337
16211523337
17201522348
18201521359
191914213610
201814203711
211613203912
221513204013
231412194114
241212194215
251111194316
261011194417
27810194419
28710184421
2969184423
3059184324
3148184326

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 6 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
47light breeze
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

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

Days grow by about 42 minutes over May. Sunrise moves from 5:22 AM to 5:01 AM, and sunset from 6:41 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:226:41
213.35:216:42
313.45:206:42
413.45:196:43
513.45:186:44
613.55:176:45
713.55:166:45
813.55:156:46
913.55:146:47
1013.65:146:48
1113.65:136:48
1213.65:126:49
1313.65:116:50
1413.75:106:51
1513.75:106:51
1613.75:096:52
1713.75:086:53
1813.85:076:54
1913.85:076:54
2013.85:066:55
2113.85:056:56
2213.95:056:57
2313.95:046:57
2413.95:046:58
2513.95:036:59
2613.95:036:59
2714.05:027:00
2814.05:027:01
2914.05:017:01
3014.05:017:02
3114.05:017:03

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.16 kWh/m².

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 6.52 kWh/m² in June across the year — May's 6.16 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.1Intense
116.1Intense
126.1Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Hazard calendar for Greenville

In seasonPeak

None of Greenville's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Greenville 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 May a good time to visit Greenville?

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

6.2
Sightseeing
3rd-best month of the year
6.7
Beach & pool
3rd-best month of the year

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

What to pack for Greenville in May

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

In May, Greenville sees daytime highs around 82°F and nights near 65°F. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Greenville in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (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 20 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 highHighModerateJun 20UV 10Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr9Very high
May9Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Greenville 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 Greenville is worst in July — around 21 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1520 µg/m³Dec 186 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr10Good
May14Moderate
Jun18Moderate
Jul21Moderate
Aug16Moderate
Sep12Moderate
Oct8Good
Nov7Good
Dec6Good
Location & terrain

Where is Greenville?

Greenville sits at 33.4°N, 91.1°W, 131 ft above sea level, in United States. The nearest listed city is Greenwood, 52 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 95 ft around an average of 128 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 138 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 371 ft.

The land around Greenville is covered by trees (53%) within 2 miles, cropland (45%) and trees (34%) within 10 miles, and cropland (55%) and trees (35%) within 50 miles.

2 miles
95 ft
10 miles
138 ft
50 miles
371 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Greenwood 52 mi · Clarksdale 62 mi · Vicksburg 74 mi · Pine Bluff 78 mi · Clinton 85 mi · Madison 85 mi · Ridgeland 86 mi · Monroe 88 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 (33.409°, -91.0598°, elevation 131 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).