Carbondale Travel Guide

City Southern Illinois city hosting Southern Illinois University

A college town in southern Illinois, Carbondale is a base for Shawnee National Forest hikes, cave explorations and music nights. Visitors attend university events, browse vinyl shops and drive scenic byways past sandstone bluffs.

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Best Time to Visit Carbondale #

Climate

Carbondale's climate is classified as Cold Semi-Arid - Cold Semi-Arid climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -15°C to 30°C. Semi-arid with limited rainfall, distributed fairly evenly throughout the year.

Air Quality: AQI 20 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
34°
Warmest Month
-32°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 1°C and lows of -15°C. Moderate rainfall (34 mm) and partly cloudy skies.

42 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-15°
83%
Humidity
Very Humid

Weather

34 mm
Rainfall
1.8 m/s
Wind
Calm
0.4
UV Index
Low
9.6h daylight

February

February is freezing with highs of 5°C and lows of -11°C. The driest month with just 28 mm and mostly overcast skies.

48 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-11°
79%
Humidity
Very Humid

Weather

28 mm
Rainfall
2.1 m/s
Wind
Calm
0.7
UV Index
Moderate
10.6h daylight

March

March is cold with highs of 10°C and lows of -6°C. Moderate rainfall (37 mm) and partly cloudy skies.

59 Acceptable

Comfort

Feels Like Cold
C
Temperature
-6° 10°
67%
Humidity
Humid

Weather

37 mm
Rainfall
2.7 m/s
Wind
Calm
1.3
UV Index
High
11.8h daylight

April

April is cold with highs of 15°C and lows of -2°C. Moderate rainfall (33 mm) and partly cloudy skies.

62 Good

Comfort

Feels Like Cold
C
Temperature
-2° 15°
59%
Humidity
Humid

Weather

33 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.7
UV Index
Very High
13.1h daylight

May

May is cool with highs of 21°C and lows of 2°C. The wettest month with 38 mm of rain and partly cloudy skies.

72 Very Good

Comfort

11°
Feels Like Cool
11°C
Temperature
21°
53%
Humidity
Humid

Weather

38 mm
Rainfall
3.2 m/s
Wind
Light Breeze
2.1
UV Index
Extreme
14.2h daylight

June

June is cool with highs of 27°C and lows of 6°C. The driest month with just 28 mm.

90 Ideal

Comfort

16°
Feels Like Cool
16°C
Temperature
27°
40%
Humidity
Comfortable

Weather

28 mm
Rainfall
3.1 m/s
Wind
Light Breeze
2.7
UV Index
Extreme
14.7h daylight

July

July is the warmest month with highs of 30°C and lows of 9°C. Moderate rainfall (32 mm) and partly cloudy skies.

85 Excellent

Comfort

19°
Feels Like Mild
19°C
Temperature
30°
44%
Humidity
Comfortable

Weather

32 mm
Rainfall
2.7 m/s
Wind
Calm
2.6
UV Index
Extreme
14.5h daylight

August

August is mild with highs of 28°C and lows of 8°C. Moderate rainfall (34 mm) and partly cloudy skies.

85 Excellent

Comfort

18°
Feels Like Mild
18°C
Temperature
28°
45%
Humidity
Comfortable

Weather

34 mm
Rainfall
2.6 m/s
Wind
Calm
2.2
UV Index
Extreme
13.5h daylight

September

September is cool with highs of 24°C and lows of 4°C. Moderate rainfall (37 mm).

85 Excellent

Comfort

14°
Feels Like Cool
14°C
Temperature
24°
46%
Humidity
Comfortable

Weather

37 mm
Rainfall
2.6 m/s
Wind
Calm
1.6
UV Index
Very High
12.3h daylight

October

October is cold with highs of 18°C and lows of -2°C. Moderate rainfall (37 mm) and partly cloudy skies.

73 Very Good

Comfort

Feels Like Cold
C
Temperature
-2° 18°
54%
Humidity
Humid

Weather

37 mm
Rainfall
2.4 m/s
Wind
Calm
1.0
UV Index
Moderate
11.0h daylight

November

November is cold with highs of 8°C and lows of -7°C. Moderate rainfall (32 mm) and partly cloudy skies.

63 Good

Comfort

Feels Like Cold
C
Temperature
-7°
64%
Humidity
Humid

Weather

32 mm
Rainfall
2.1 m/s
Wind
Calm
0.5
UV Index
Moderate
9.9h daylight

December

December is freezing with highs of 2°C and lows of -13°C. Moderate rainfall (37 mm) and partly cloudy skies.

42 Poor

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-13°
80%
Humidity
Very Humid

Weather

37 mm
Rainfall
1.7 m/s
Wind
Calm
0.3
UV Index
Low
9.3h daylight

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