Alton weather in March

In March, Alton sees average daytime highs of 82°F and overnight lows near 62°F, with 1.4 in of rain across 5.2 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 79°F in the first days to 85°F by the end. The sky is clear or mostly clear about 40% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Alton's 9th-clearest and 5th-windiest month. For the whole year in context, see Alton's year-round climate.

Daytime high
82°
8th warmest
Overnight low
62°
5th coldest
Rainfall
1.4 in
5.2 wet days
Daylight
11 h 48 min
6:49 AM – 6:37 PM
Cloud cover
52%
9th clearest
Wind
11 mph
5th windiest
Solar energy
4.84 kWh/m²
Travel score
6.8
out of 10

Alton is city in Texas, United States.

Density
1,031/km²
people per km²
Founded
1978

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 79°F in the first days to 85°F by the end.

A typical March day in Alton reaches about 82°F in the afternoon and slips back to 62°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 92°F. Set against its neighbours, March runs about 5°F warmer than February and about 6°F cooler than April.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17959
27959
38059
48059
58059
68060
78060
88060
98060
108060
118161
128161
138161
148162
158262
168262
178262
188263
198263
208363
218363
228364
238364
248464
258464
268464
278465
288465
298565
308565
318565

How March really feels in Alton

Once humidity and wind are folded in, March 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

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

Alton weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 8th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 14% of March, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45248
55149
65149
75050
85050
95050
105050
115149
125149
135248
145347
155347
165446
175545
185644
195644
205644
215644
225743
235644
245743
255545
265545
275545
285446
295446
305347
315347

Chance of precipitation in March

Any precipitation

Alton gets around 1.4 in of rain over 5.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 17% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
216
316
416
517
617
718
819
919
1020
1120
1221
1321
1421
1520
1620
1719
1819
1918
2018
2117
2216
2316
2415
2515
2615
2715
2815
2915
3016
3116

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1441321211
2441320221
3441419231
4431419231
5431419241
6421518241
7411618251
8391618251
9381719261
10371719261
11361719271
12351819281
13341820281
14331820291
15321720291
16311721301
17301721312
18291621312
19281622322
20271522332
21261522343
22261422353
23251422354
24241422364
25241322365
26231322375
27231321376
28231321377
29221221377
30221220378
31221220379

Wind in March

Winds average 11 mph in March.

Across March, 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
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2711light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 24 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over March. Sunrise moves from 7:04 AM to 6:32 AM, and sunset from 6:29 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:046:29
211.47:036:30
311.57:026:30
411.57:016:31
511.57:006:31
611.56:596:32
711.66:586:32
811.66:576:33
911.66:566:34
1011.66:556:34
1111.76:546:35
1211.76:536:35
1311.76:526:36
1411.86:516:36
1511.86:506:37
1611.86:496:37
1711.86:486:38
1811.96:476:38
1911.96:456:39
2011.96:446:39
2111.96:436:40
2212.06:426:40
2312.06:416:41
2412.06:406:41
2512.06:396:42
2612.16:386:42
2712.16:376:42
2812.16:356:43
2912.26:346:43
3012.26:336:44
3112.26:326:44

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.84 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 — March's 4.84 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.6Bright
94.6Bright
104.6Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.9Bright
184.9Bright
194.9Bright
205.0Bright
215.0Bright
225.0Bright
235.1Bright
245.1Bright
255.2Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.3Bright
315.4Bright
Planning a trip in March

Is March a good time to visit Alton?

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

6.8
Sightseeing
5th-best month of the year
7.5
Beach & pool
1st-best month of the year

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

What to pack for Alton in March

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

In March, Alton sees daytime highs around 82°F and nights near 62°F. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

UV index in Alton in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Alton 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 Alton in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Alton 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 Alton?

Alton sits at 26.3°N, 98.3°W, 161 ft above sea level, in United States. The nearest listed city is Mission, 5.0 mi away.

Topography around Alton

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

Within 2 miles, the terrain around Alton has only modest variations in elevation — a maximum elevation change of 59 ft around an average of 164 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 203 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,024 ft.

The land around Alton is covered by trees (31%), grassland (25%) and artificial surfaces (20%) within 2 miles, trees (29%), cropland (25%) and grassland (21%) within 10 miles, and cropland (31%), grassland (26%) and shrubs (20%) within 50 miles.

2 miles
59 ft
10 miles
203 ft
50 miles
1,024 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Mission 5.0 mi · McAllen 7.5 mi · Edinburg 9.3 mi · Pharr 11 mi · San Juan 12 mi · Alamo 14 mi · Reynosa 14 mi · Donna 18 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 Alton (26.2873°, -98.3133°, elevation 161 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).