Carbondale, IL
Illinois · Records since 1898–2026
☀️ 90°F
Feels like 99°
Currently in Carbondale
As of 7:00 PM CDT
Records for July 28
🔥 Record High
112°F
July 28, 1930
+24° from 88° normal❄ Record Low
51°F
July 28, 2013
-16° from 67° normal
🌞 Normal high: 88°F 🌑 Normal low: 67°F 1991–2020 normals
All-Time Records — Carbondale
113°F
Hottest Day Ever
Aug 9, 1930
-25°F
Coldest Day Ever
Jan 11, 1977
5.85"
Wettest Day Ever
Mar 18, 2008
10.0"
Most Snow in One Day
Feb 26, 1979
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 112°F | July 28, 1930 |
| 2 | 105°F | July 28, 1952 |
| 3 | 103°F | July 28, 1921 |
| 4 | 103°F | July 28, 1901 |
| 5 | 102°F | July 28, 1922 |
| 6 | 101°F | July 28, 1918 |
| 7 | 100°F | July 28, 1940 |
| 8 | 100°F | July 28, 1936 |
| 9 | 100°F | July 28, 1932 |
| 10 | 99°F | July 28, 1997 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 51°F | July 28, 2013 |
| 2 | 52°F | July 28, 1962 |
| 3 | 53°F | July 28, 1937 |
| 4 | 53°F | July 28, 1920 |
| 5 | 54°F | July 28, 1985 |
Heat Wave Summary — Carbondale
threshold: 96°F (90th percentile of historical Jun–Aug highs)5.2
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
28
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
114 of 204 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1899–202617
2026 so far
50
Avg/year 1970–2025
40
Avg/year (last 10 complete)
95
Most in a year (1936)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Carbondale
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 9, 1936 – Aug 29, 1936 | 21 | 110°F (Aug 18) | 103°F | 74°F |
| 2 | Jul 25, 1930 – Aug 10, 1930 | 17 | 113°F (Aug 9) | 104°F | 72°F |
| 3 | Jul 15, 1901 – Jul 29, 1901 | 15 | 112°F (Jul 22) | 104°F | 71°F |
| 4 | Aug 28, 1912 – Sep 11, 1912 | 15 | 103°F (Sep 10) | 100°F | 68°F |
| 5 | Jun 21, 1901 – Jul 4, 1901 | 14 | 101°F (Jun 22) | 99°F | 73°F |
| 6 | Jul 6, 1936 – Jul 18, 1936 | 13 | 112°F (Jul 14) | 103°F | 74°F |
| 7 | Aug 31, 1925 – Sep 11, 1925 | 12 | 108°F (Sep 4) | 104°F | 68°F |
| 8 | Jun 27, 2012 – Jul 8, 2012 | 12 | 107°F (Jun 29) | 104°F | 71°F |
| 9 | Jul 5, 1914 – Jul 16, 1914 | 12 | 106°F (Jul 12) | 102°F | 70°F |
| 10 | Jun 28, 1911 – Jul 9, 1911 | 12 | 104°F (Jul 4) | 100°F | 70°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
33
2026 so far
above-normal nights
43.8
Avg / summer
1970–2020
74
Most in a summer
2016
Above-Normal Summer Nights Per Year
Average June–August Low by Decade
Overnight lows · complete decades only
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
22.63"
2026 YTD
Normal: 27.05"
-4.42"
8.65"
July so far
July normal: 3.61"
+5.04"
10.63"
Summer so far
Summer normal: 10.77"
-0.14"
4
2026 heavy rain days
Days with ≥ 1.0"
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1970–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")