Sulphur Springs weather in May

In May, Sulphur Springs sees average daytime highs of 82°F and overnight lows near 64°F, with 5.4 in of rain across 11.8 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 1st-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 33% 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 Sulphur Springs's 11th-clearest and 7th-windiest month. For the whole year in context, see Sulphur Springs's year-round climate.

Daytime high
82°
5th warmest
Overnight low
64°
8th coldest
Rainfall
5.4 in
11.8 wet days
Daylight
13 h 42 min
5:28 AM – 7:10 PM
Cloud cover
57%
11th clearest
Wind
7 mph
7th windiest
Solar energy
5.66 kWh/m²
Travel score
6.0
out of 10

Sulphur Springs is city in Hopkins County, Texas, USA.

Density
263/km²
people per km²

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 Sulphur Springs reaches about 82°F in the afternoon and slips back to 64°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 89°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)
17859
27859
37860
47860
57960
67961
77961
87961
98062
108062
118062
128063
138163
148163
158164
168164
178264
188264
198265
208265
218365
228366
238366
248366
258467
268467
278467
288568
298568
308568
318568

How May really feels in Sulphur Springs

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.

Sulphur Springs weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan55° / 37°3.37.80.410.13.7
Feb59° / 40°3.68.70.610.84.6
Mar66° / 48°4.69.80.211.76.2
Apr74° / 55°5.29.4012.87.0
May82° / 64°5.411.8013.76.0
Jun89° / 72°3.79.7014.14.4
Jul93° / 75°2.37.50143.4
Aug93° / 74°2.06.4013.23.4
Sep87° / 67°2.96.5012.25.4
Oct76° / 56°4.17.8011.27.4
Nov65° / 46°3.58.10.110.36.3
Dec56° / 39°4.28.10.39.94.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
44951
54951
64951
74852
84852
94852
104852
114852
124951
134852
144852
154951
164951
174951
184951
194951
204951
214951
225050
235050
245050
255050
265149
275149
285149
295248
305347
315446

Chance of precipitation in May

Any precipitation

Sulphur Springs gets around 5.4 in of rain over 11.8 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
338
438
538
638
738
838
938
1037
1137
1237
1336
1436
1536
1636
1736
1836
1936
2036
2136
2237
2337
2437
2537
2637
2737
2837
2937
3037
3136

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13719231830
23519241930
33319242130
43119242240
52919242440
62719242550
72618242650
82418242850
92318242960
102218243060
112118243260
122018243270
131918233470
141817233570
151617233670
161517233780
171416233880
181316224090
191215224190
2011152242100
2110142244100
229132245110
238132146120
246122148130
255112149140
264102149150
274102050160
28392050171
29282050191
30271950211
31271950221

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 7 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
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
157light breeze
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 5:41 AM to 5:20 AM, and sunset from 6:58 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:416:58
213.35:406:59
313.45:397:00
413.45:387:01
513.45:377:02
613.45:367:02
713.55:357:03
813.55:347:04
913.55:337:05
1013.65:327:05
1113.65:317:06
1213.65:317:07
1313.65:307:08
1413.75:297:08
1513.75:287:09
1613.75:287:10
1713.75:277:11
1813.85:267:11
1913.85:257:12
2013.85:257:13
2113.85:247:13
2213.85:247:14
2313.95:237:15
2413.95:237:15
2513.95:227:16
2613.95:227:17
2713.95:217:17
2814.05:217:18
2914.05:207:19
3014.05:207:19
3114.05:207:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.66 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 6.6 kWh/m² in July across the year — May's 5.66 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
306.0Bright
316.0Bright
Planning a trip in May

Is May a good time to visit Sulphur Springs?

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

6.0
Sightseeing
5th-best month of the year
6.5
Beach & pool
5th-best month of the year

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

What to pack for Sulphur Springs in May

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

In May, Sulphur Springs sees daytime highs around 82°F and nights near 64°F. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Sulphur Springs 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 Sulphur Springs peaks around June 22 at about 10 (very high) — 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 highHighModerateJun 22UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Sulphur Springs 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 Sulphur Springs is worst in July — around 21 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Jan 117 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar11Good
Apr11Good
May14Moderate
Jun17Moderate
Jul21Moderate
Aug16Moderate
Sep13Moderate
Oct8Good
Nov8Good
Dec7Good
Location & terrain

Where is Sulphur Springs?

Sulphur Springs sits at 33.1°N, 95.6°W, 502 ft above sea level, in United States. The nearest listed city is Greenville, 29 mi away.

Topography around Sulphur Springs

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

Within 2 miles, the terrain around Sulphur Springs has only modest variations in elevation — a maximum elevation change of 128 ft around an average of 499 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 272 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 554 ft.

The land around Sulphur Springs is covered by grassland (45%) and trees (33%) within 2 miles, grassland (63%) and trees (31%) within 10 miles, and grassland (51%) and trees (40%) within 50 miles.

2 miles
128 ft
10 miles
272 ft
50 miles
554 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Greenville 29 mi · Paris 36 mi · Mount Pleasant 37 mi · Terrell 48 mi · Rockwall 52 mi · Wylie 55 mi · Tyler 57 mi · Forney 57 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 Sulphur Springs (33.1384°, -95.6011°, elevation 502 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).