Mission weather in May

In May, Mission sees average daytime highs of 92°F and overnight lows near 73°F, with 2.2 in of rain across 6.6 wet days and about 13.3 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 91°F in the first days to 95°F by the end. The sky is clear or mostly clear about 43% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 13 hours at the start of May to 13 h 30 min by month's end. Set against the rest of the year, May is Mission's 6th-clearest and 1st-windiest month. For the whole year in context, see Mission's year-round climate.

Daytime high
92°
5th warmest
Overnight low
73°
8th coldest
Rainfall
2.2 in
6.6 wet days
Daylight
13 h 18 min
5:51 AM – 7:08 PM
Cloud cover
48%
6th clearest
Wind
12 mph
1st windiest
Solar energy
6.31 kWh/m²
Travel score
3.5
out of 10

Mission is city in Hidalgo County, Texas, United States.

Density
903/km²
people per km²
Founded
1910

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 91°F in the first days to 95°F by the end.

A typical May day in Mission reaches about 92°F in the afternoon and slips back to 73°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 100°F. Set against its neighbours, May runs about 5°F warmer than April and about 4°F cooler than June.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19171
29171
39171
49171
59172
69172
79172
89272
99272
109273
119273
129273
139273
149273
159273
169273
179274
189274
199374
209374
219374
229374
239374
249475
259475
269475
279475
289475
299575
309576
319576

How May really feels in Mission

Once humidity and wind are folded in, May averages 31 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
31
4 feel dangerously hot (≥ 102°F)
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mission weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan72° / 52°1.04.410.57.5
Feb76° / 56°0.94.411.17.7
Mar82° / 62°1.45.211.86.8
Apr88° / 68°1.75.312.65.0
May92° / 73°2.26.613.33.5
Jun96° / 77°2.07.113.62.4
Jul98° / 78°2.15.813.52.0
Aug98° / 78°1.66.812.91.8
Sep93° / 75°3.511.812.23.1
Oct87° / 68°2.36.711.45.2
Nov79° / 60°1.45.310.77.5
Dec73° / 54°1.25.110.47.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
25941
35941
45941
55842
65941
75941
85842
95941
105941
116040
126139
136139
146337
156436
166436
176535
186535
196733
206832
216832
226931
237030
247030
257228
267228
277327
287426
297426
307525
317624

Chance of precipitation in May

Any precipitation

Mission gets around 2.2 in of rain over 6.6 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 21% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
218
318
418
519
619
720
820
921
1021
1121
1222
1322
1422
1522
1622
1722
1822
1922
2022
2122
2222
2322
2422
2522
2622
2722
2822
2922
3022
3122

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11071230391
2971229411
3971228431
4861227451
5861126471
6761126491
7651126511
8651025522
9551025532
10451025542
11451025542
12351025543
1334926553
1424926554
1524926554
1624827554
1724827545
1823727565
1913727566
2013627576
2113626586
2212526606
2312525616
2412425626
2512424636
2611324656
2701323676
2801222696
2901221697
3000121717
3100120727

Wind in May

Winds average 12 mph in May, the windiest month of the year.

Across May, daily wind ranges from about 11 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2911light breeze
3011light breeze
3111light breeze

Sunrise & sunset in May

DaylightNight

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

Days grow by about 30 minutes over May. Sunrise moves from 6:01 AM to 5:45 AM, and sunset from 7:00 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:017:00
213.06:007:00
313.06:007:01
413.05:597:01
513.15:587:02
613.15:577:02
713.15:577:03
813.15:567:04
913.15:557:04
1013.25:557:05
1113.25:547:05
1213.25:537:06
1313.25:537:06
1413.25:527:07
1513.35:527:07
1613.35:517:08
1713.35:517:09
1813.35:507:09
1913.35:507:10
2013.45:497:10
2113.45:497:11
2213.45:487:11
2313.45:487:12
2413.45:487:12
2513.45:477:13
2613.45:477:13
2713.55:477:14
2813.55:467:14
2913.55:467:15
3013.55:467:15
3113.55:457:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.31 kWh/m².

For context, solar energy here swings from a low near 3.06 kWh/m² to a high of 6.78 kWh/m² in July across the year — May's 6.31 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in May

Is May a good time to visit Mission?

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

3.5
Sightseeing
8th-best month of the year
6.6
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Mission. The water and warmth also suit a beach or pool day.

What to pack for Mission in May

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

In May, Mission sees daytime highs around 92°F and nights near 73°F. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Mission 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 Mission peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeExtremeVery highHighJun 20UV 12Dec 22UV 5
UV index (midday)Level
Jan5Moderate
Feb7High
Mar8Very high
Apr11Extreme
May9Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Mission 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 Mission is worst in July — around 26 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1625 µg/m³Nov 107 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr13Moderate
May20Moderate
Jun21Moderate
Jul26Moderate
Aug19Moderate
Sep12Moderate
Oct8Good
Nov7Good
Dec9Good
Location & terrain

Where is Mission?

Mission sits at 26.2°N, 98.3°W, 141 ft above sea level, in United States. The nearest listed city is Alton, 5.0 mi away.

Topography around Mission

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

Within 2 miles, the terrain around Mission has only modest variations in elevation — a maximum elevation change of 66 ft around an average of 135 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 233 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,020 ft.

The land around Mission is covered by artificial surfaces (51%) and trees (25%) within 2 miles, trees (31%), artificial surfaces (23%) and cropland (20%) within 10 miles, and cropland (33%), grassland (23%) and shrubs (22%) within 50 miles.

2 miles
66 ft
10 miles
233 ft
50 miles
1,020 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Alton 5.0 mi · McAllen 6.2 mi · Pharr 8.7 mi · Reynosa 9.9 mi · San Juan 11 mi · Edinburg 12 mi · Alamo 12 mi · Donna 17 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 Mission (26.2159°, -98.3253°, elevation 141 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).