Carbondale weather in April

In April, Carbondale sees average daytime highs of 68°F and overnight lows near 49°F, with 5.0 in of rain across 11.6 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 64°F in the first days to 71°F by the end. The sky is clear or mostly clear about 32% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 30 min by month's end. Set against the rest of the year, April is Carbondale's 7th-clearest and 1st-windiest month. For the whole year in context, see Carbondale's year-round climate.

Daytime high
68°
7th warmest
Overnight low
49°
6th coldest
Rainfall
5.0 in
11.6 wet days
Daylight
13 hours
5:28 AM – 6:26 PM
Cloud cover
59%
7th clearest
Wind
8 mph
1st windiest
Solar energy
5.25 kWh/m²
Travel score
6.0
out of 10

Carbondale is city in Jackson County, Illinois, United States.

Density
582/km²
people per km²
Founded
1852

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 64°F in the first days to 71°F by the end.

A typical April day in Carbondale reaches about 68°F in the afternoon and slips back to 49°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 80°F. Set against its neighbours, April runs about 11°F warmer than March and about 9°F cooler than May.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
16344
26345
36445
46446
56546
66546
76546
86647
96647
106647
116748
126748
136749
146849
156849
166849
176850
186950
196950
206951
216951
226951
237051
247052
257052
267052
277153
287153
297153
307154

How April really feels in Carbondale

Once humidity and wind are folded in, April 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

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

Carbondale weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 27°3.38.92.39.70.3
Feb47° / 30°3.082.210.51.4
Mar57° / 39°4.311.20.911.73.9
Apr68° / 49°5.011.6012.96.0
May76° / 59°4.612.50146.3
Jun85° / 68°3.610.5014.65.3
Jul88° / 71°3.510014.34.5
Aug87° / 69°2.77.6013.55.1
Sep81° / 61°3.07.4012.36.9
Oct69° / 50°3.67.70.1116.9
Nov56° / 39°3.78.60.5103.9
Dec46° / 31°3.391.99.41.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34654
44654
54753
64753
74753
84753
94753
104753
114654
124753
134654
144555
154654
164555
174555
184456
194456
204357
214357
224357
234456
244357
254357
264357
274357
284357
294258
304357

Chance of precipitation in April

Any precipitation

Carbondale gets around 5.0 in of rain over 11.6 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 45% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
237
337
437
537
636
736
836
936
1035
1135
1235
1336
1436
1536
1637
1738
1838
1939
2040
2141
2242
2342
2443
2544
2644
2745
2845
2945
3045

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
188750
288750
386860
486860
586860
685870
784970
884970
9831070
10821080
11811180
12801280
13801280
14791380
15781480
16781480
17771580
18771580
19761680
20761680
21751690
22741790
237317100
247217101
257117111
267018111
276918121
286718132
296618142
306518143

Wind in April

Winds average 8 mph in April, the windiest month of the year.

Across April, 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.

051015151015202530
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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:51 AM to 5:09 AM, and sunset from 6:12 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:516:12
212.45:496:13
312.45:486:14
412.55:466:15
512.55:446:16
612.65:436:17
712.65:416:18
812.75:406:19
912.75:386:20
1012.75:376:21
1112.85:356:22
1212.85:346:23
1312.95:326:23
1412.95:316:24
1512.95:296:25
1613.05:286:26
1713.05:266:27
1813.15:256:28
1913.15:246:29
2013.15:226:30
2113.25:216:31
2213.25:196:32
2313.25:186:33
2413.35:176:34
2513.35:156:35
2613.45:146:36
2713.45:136:37
2813.45:126:37
2913.55:106:38
3013.55:096:39

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.25 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 6.46 kWh/m² in June across the year — April's 5.25 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Is April a good time to visit Carbondale?

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

6.0
Sightseeing
4th-best month of the year
3.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Carbondale for sightseeing.

What to pack for Carbondale in April

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

In April, Carbondale sees daytime highs around 68°F and nights near 49°F. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Carbondale in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Carbondale peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 9Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Carbondale in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Carbondale is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1318 µg/m³Nov 128 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar12Moderate
Apr11Good
May14Moderate
Jun17Moderate
Jul19Moderate
Aug14Moderate
Sep12Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Carbondale?

Carbondale sits at 37.7°N, 89.2°W, 413 ft above sea level, in United States. The nearest listed city is Marion, 16 mi away.

Topography around Carbondale

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

Within 2 miles, the terrain around Carbondale has only modest variations in elevation — a maximum elevation change of 167 ft around an average of 420 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 489 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,030 ft.

The land around Carbondale is covered by trees (48%) and artificial surfaces (22%) within 2 miles, trees (61%) within 10 miles, and trees (46%) and cropland (39%) within 50 miles.

2 miles
167 ft
10 miles
489 ft
50 miles
1,030 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Marion 16 mi · Cape Girardeau 34 mi · Mount Vernon 44 mi · Paducah 56 mi · Sikeston 62 mi · Farmington 66 mi · Belleville 69 mi · O'Fallon 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 Carbondale (37.7273°, -89.2168°, elevation 413 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).