Mattoon weather in March

In March, Mattoon sees average daytime highs of 52°F and overnight lows near 34°F, with 3.4 in of precipitation across 10.5 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 46°F in the first days to 57°F by the end. The sky is clear or mostly clear about 25% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Mattoon's 9th-clearest and 3rd-windiest month. For the whole year in context, see Mattoon's year-round climate.

Daytime high
52°
8th warmest
Overnight low
34°
4th coldest
Precipitation
3.4 in
10.5 wet days
Daylight
11 h 42 min
6:13 AM – 5:54 PM
Cloud cover
66%
9th clearest
Wind
9 mph
3rd windiest
Solar energy
4.08 kWh/m²
Travel score
2.7
out of 10

Mattoon is city in Illinois, United States.

Density
676/km²
people per km²
Founded
1853

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 46°F in the first days to 57°F by the end.

A typical March day in Mattoon reaches about 52°F in the afternoon and slips back to 34°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 38°F and 69°F. Set against its neighbours, March runs about 11°F warmer than February and about 12°F cooler than April.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
14629
24629
34629
44730
54730
64830
74831
84931
94931
105032
115032
125133
135133
145133
155234
165234
175335
185335
195335
205436
215436
225537
235537
245537
255637
265638
275738
285738
295739
305839
315839

How March really feels in Mattoon

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 28 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
28
wind chill below the day's low

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

Mattoon weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 22°3.08.93.89.50.0
Feb41° / 25°2.57.83.410.40.3
Mar52° / 34°3.410.51.611.72.7
Apr64° / 45°4.811.80.3135.4
May74° / 56°4.712.7014.16.3
Jun82° / 65°4.211.2014.75.9
Jul85° / 68°3.710.7014.55.4
Aug83° / 65°3.08.5013.56.0
Sep78° / 58°2.97.2012.37.3
Oct65° / 46°3.38.20.1116.2
Nov52° / 36°3.58.30.79.82.8
Dec41° / 27°2.78.92.99.30.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23862
33763
43763
53862
63961
73961
84060
93961
103961
114060
123961
134060
143961
153961
163961
173961
183961
193961
203961
213961
223961
233862
243862
253862
263961
273961
283862
293961
303961
313961

Chance of precipitation in March

Any precipitationSnow

Mattoon gets around 3.4 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 33% and peaks near 37% on the wettest days, and about 2 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1299
2299
3298
4298
5298
6297
7297
8307
9306
10306
11316
12316
13326
14336
15336
16346
17356
18355
19365
20365
21375
22375
23374
24374
25374
26374
27373
28373
29373
30373
31372

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 97% 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
89910
99820
109820
119820
129820
139730
149730
159730
169730
179640
189640
199640
209640
219550
229550
239550
249550
259550
269550
279550
289451
299451
309451
319451

Wind in March

Winds average 9 mph in March.

Across March, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
3010light breeze
3110light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 hours 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 78 minutes over March. Sunrise moves from 6:36 AM to 5:48 AM, and sunset from 5:38 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:365:38
211.16:345:39
311.16:335:40
411.26:315:41
511.26:305:42
611.26:285:43
711.36:275:44
811.36:255:45
911.46:245:46
1011.46:225:47
1111.56:215:48
1211.56:195:49
1311.56:185:50
1411.66:165:51
1511.66:145:52
1611.76:135:54
1711.76:115:55
1811.86:105:56
1911.86:085:57
2011.96:065:58
2111.96:055:59
2211.96:036:00
2312.06:016:01
2412.06:006:02
2512.15:586:03
2612.15:566:04
2712.25:556:05
2812.25:536:06
2912.35:516:07
3012.35:506:08
3112.35:486:09

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.08 kWh/m².

For context, solar energy here swings from a low near 1.79 kWh/m² to a high of 6.44 kWh/m² in June across the year — March's 4.08 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.7Moderate
43.7Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.9Moderate
93.9Moderate
103.9Moderate
114.0Moderate
124.0Bright
134.0Bright
144.0Bright
154.1Bright
164.1Bright
174.1Bright
184.2Bright
194.2Bright
204.2Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.4Bright
264.4Bright
274.5Bright
284.5Bright
294.5Bright
304.6Bright
314.6Bright
Planning a trip in March

Is March a good time to visit Mattoon?

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

2.7
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

March is a weaker month for outdoor sightseeing in Mattoon.

What to pack for Mattoon in March

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

In March, Mattoon sees daytime highs around 52°F and nights near 34°F. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Mattoon 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 Mattoon peaks around June 23 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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Mattoon 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 Mattoon is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1616 µg/m³Oct 218 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar13Moderate
Apr11Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Mattoon?

Mattoon sits at 39.5°N, 88.4°W, 735 ft above sea level, in United States. The nearest listed city is Charleston, 11 mi away.

Topography around Mattoon

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

Within 2 miles, the terrain around Mattoon has only modest variations in elevation — a maximum elevation change of 75 ft around an average of 712 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 236 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 446 ft.

The land around Mattoon is covered by cropland (49%) within 2 miles, cropland (80%) within 10 miles, and cropland (76%) within 50 miles.

2 miles
75 ft
10 miles
236 ft
50 miles
446 ft
treesgrasslandcroplandartificial surfaceswater
March weather nearby: Charleston 11 mi · Decatur 40 mi · Urbana 44 mi · Champaign 44 mi · Terre Haute 51 mi · Danville 59 mi · Springfield 71 mi · Vincennes 71 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 Mattoon (39.4831°, -88.3728°, elevation 735 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).