Granite City weather in March

In March, Granite City sees average daytime highs of 55°F and overnight lows near 37°F, with 3.7 in of precipitation across 10.5 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 50°F in the first days to 60°F by the end. The sky is clear or mostly clear about 28% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Granite City's 9th-clearest and 2nd-windiest month. For the whole year in context, see Granite City's year-round climate.

Daytime high
55°
8th warmest
Overnight low
37°
4th coldest
Precipitation
3.7 in
10.5 wet days
Daylight
11 h 42 min
6:20 AM – 6:01 PM
Cloud cover
64%
9th clearest
Wind
8 mph
2nd windiest
Solar energy
4.09 kWh/m²
Travel score
3.5
out of 10

Granite City is city in Madison County, Illinois, United States.

Density
542/km²
people per km²
Founded
1896

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 50°F in the first days to 60°F by the end.

A typical March day in Granite City reaches about 55°F in the afternoon and slips back to 37°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 40°F and 72°F. Set against its neighbours, March runs about 11°F warmer than February and about 11°F cooler than April.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
14931
24931
35032
45032
55132
65133
75133
85234
95234
105334
115335
125435
135436
145536
155537
165537
175637
185638
195638
205739
215739
225739
235840
245840
255840
265941
275941
286041
296042
306042
316142

How March really feels in Granite City

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 17 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
17
wind chill below the day's low

The story in March is cold — wind chill drags the overnight "feels like" below the raw low.

Granite City weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 24°2.88.22.99.60.0
Feb44° / 28°2.57.72.810.50.8
Mar55° / 37°3.710.51.411.73.5
Apr66° / 47°4.611.20.2135.8
May75° / 58°5.013.5014.16.2
Jun84° / 67°4.211014.75.4
Jul87° / 70°3.49.9014.44.7
Aug86° / 68°2.99.2013.55.2
Sep79° / 60°3.37.6012.37.1
Oct67° / 48°3.48.40.1116.6
Nov54° / 37°3.68.60.89.93.4
Dec43° / 29°2.68.22.29.30.6

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34159
44258
54258
64357
74258
84357
94357
104258
114258
124159
134159
144159
154060
164159
173961
183961
193961
203961
213862
223961
233961
243961
253961
263961
274060
284159
294159
304159
314258

Chance of precipitation in March

Any precipitationSnow

Granite City gets around 3.7 in of rain and snow over 10.5 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 37% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1319
2309
3308
4308
5307
6307
7306
8306
9305
10315
11315
12324
13324
14334
15334
16344
17354
18354
19364
20364
21364
22373
23373
24373
25373
26373
27362
28362
29362
30362
31352

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79910
89820
99820
109820
119820
129820
139730
149730
159730
169640
179640
189640
199640
209550
219550
229451
239451
249451
259451
269361
279361
289361
299262
309262
319262

Wind in March

Winds average 8 mph in March.

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

051015151015202531
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
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 06 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over March. Sunrise moves from 6:42 AM to 5:56 AM, and sunset from 5:45 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:425:45
211.16:415:47
311.16:395:48
411.26:385:49
511.26:365:50
611.36:355:51
711.36:335:52
811.36:325:53
911.46:305:54
1011.46:295:55
1111.56:275:56
1211.56:265:57
1311.66:245:58
1411.66:235:59
1511.66:216:00
1611.76:206:01
1711.76:186:02
1811.86:166:03
1911.86:156:04
2011.96:136:05
2111.96:126:06
2211.96:106:07
2312.06:086:08
2412.06:076:09
2512.16:056:10
2612.16:046:11
2712.26:026:12
2812.26:006:13
2912.25:596:14
3012.35:576:15
3112.35:566:16

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.09 kWh/m².

For context, solar energy here swings from a low near 1.9 kWh/m² to a high of 6.43 kWh/m² in June across the year — March's 4.09 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.9Moderate
73.9Moderate
83.9Moderate
94.0Moderate
104.0Moderate
114.0Bright
124.0Bright
134.0Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.3Bright
244.3Bright
254.4Bright
264.4Bright
274.5Bright
284.5Bright
294.6Bright
304.6Bright
314.7Bright
Planning a trip in March

Is March a good time to visit Granite City?

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

3.5
Sightseeing
8th-best month of the year
0.1
Beach & pool
8th-best month of the year

March is a weaker month for outdoor sightseeing in Granite City.

What to pack for Granite City in March

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

In March, Granite City sees daytime highs around 55°F and nights near 37°F. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Granite City in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Granite City peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 21UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Granite City 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 Granite City is worst in August — around 18 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodAug 1018 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar13Moderate
Apr11Good
May14Moderate
Jun16Moderate
Jul18Moderate
Aug18Moderate
Sep13Moderate
Oct8Good
Nov9Good
Dec10Good
Location & terrain

Where is Granite City?

Granite City sits at 38.7°N, 90.1°W, 423 ft above sea level, in United States. The nearest listed city is East Saint Louis, 5.6 mi away.

Topography around Granite City

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

Within 2 miles, the terrain around Granite City has only modest variations in elevation — a maximum elevation change of 89 ft around an average of 420 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 528 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 906 ft.

The land around Granite City is covered by artificial surfaces (40%) and trees (27%) within 2 miles, trees (37%) and artificial surfaces (24%) within 10 miles, and cropland (44%) and trees (42%) within 50 miles.

2 miles
89 ft
10 miles
528 ft
50 miles
906 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: East Saint Louis 5.6 mi · St. Louis 5.6 mi · Spanish Lake 6.8 mi · Ferguson 8.7 mi · Collinsville 9.3 mi · University City 9.3 mi · Clayton 11 mi · Florissant 11 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 Granite City (38.7014°, -90.1487°, elevation 423 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).