Peoria, IL
Illinois · Records since 1883–2026
☀️ 89°F
Feels like 98°
Currently in Peoria
As of 7:00 PM CDT
Records for July 28
🔥 Record High
102°F
July 28, 1983
+16° from 86° normal❄ Record Low
51°F
July 28, 2013
-15° from 66° normal
🌞 Normal high: 86°F 🌑 Normal low: 66°F 1991–2020 normals
All-Time Records — Peoria
113°F
Hottest Day Ever
Jul 15, 1936
-27°F
Coldest Day Ever
Jan 5, 1884
5.52"
Wettest Day Ever
May 18, 1927
12.2"
Most Snow in One Day
Jan 13, 1979
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 102°F | July 28, 1983 |
| 2 | 102°F | July 28, 1916 |
| 3 | 101°F | July 28, 1941 |
| 4 | 101°F | July 28, 1886 |
| 5 | 101°F | July 28, 1885 |
| 6 | 100°F | July 28, 1903 |
| 7 | 99°F | July 28, 1940 |
| 8 | 99°F | July 28, 1936 |
| 9 | 99°F | July 28, 1887 |
| 10 | 98°F | July 28, 2023 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 51°F | July 28, 2013 |
| 2 | 53°F | July 28, 1994 |
| 3 | 53°F | July 28, 1971 |
| 4 | 55°F | July 28, 1977 |
| 5 | 55°F | July 28, 1925 |
Heat Wave Summary — Peoria
threshold: 94°F (90th percentile of historical Jun–Aug highs)4.5
Avg heat wave length
days (historical)
99°
Avg peak temp
during heat waves
18
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
115 of 206 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1883–202611
2026 so far
28
Avg/year 1970–2025
26
Avg/year (last 10 complete)
69
Most in a year (1887)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Peoria
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 3, 1936 – Jul 18, 1936 | 16 | 113°F (Jul 15) | 105°F | 74°F |
| 2 | Jun 17, 1933 – Jun 27, 1933 | 11 | 101°F (Jun 26) | 96°F | 67°F |
| 3 | Jul 26, 1887 – Aug 4, 1887 | 10 | 104°F (Jul 29) | 99°F | 72°F |
| 4 | Jul 19, 1901 – Jul 27, 1901 | 9 | 106°F (Jul 24) | 101°F | 73°F |
| 5 | Jul 9, 1901 – Jul 17, 1901 | 9 | 104°F (Jul 10) | 96°F | 67°F |
| 6 | Jun 24, 1931 – Jul 2, 1931 | 9 | 103°F (Jun 29) | 101°F | 75°F |
| 7 | Aug 26, 1953 – Sep 3, 1953 | 9 | 100°F (Sep 1) | 96°F | 68°F |
| 8 | Aug 2, 1900 – Aug 10, 1900 | 9 | 99°F (Aug 5) | 97°F | 69°F |
| 9 | Sep 7, 1897 – Sep 15, 1897 | 9 | 97°F (Sep 10) | 96°F | 66°F |
| 10 | Jul 24, 1916 – Jul 31, 1916 | 8 | 103°F (Jul 29) | 100°F | 72°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
26
2026 so far
above-normal nights
41.5
Avg / summer
1970–2020
67
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
23.82"
2026 YTD
Normal: 22.16"
+1.66"
1.08"
July so far
July normal: 3.53"
-2.45"
9.82"
Summer so far
Summer normal: 10.57"
-0.75"
8
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")