Knoxville, TN
Tennessee · Records since 1871–2026
🌤️ 85°F
Feels like 93°
Currently in Knoxville
As of 8:00 PM EDT
Records for July 28
🔥 Record High
103°F
July 28, 1952
+15° from 88° normal❄ Record Low
59°F
July 28, 1962
-10° from 69° normal
🌞 Normal high: 88°F 🌑 Normal low: 69°F 1991–2020 normals
All-Time Records — Knoxville
105°F
Hottest Day Ever
Jul 1, 2012
-24°F
Coldest Day Ever
Jan 21, 1985
6.14"
Wettest Day Ever
Jul 16, 1917
17.5"
Most Snow in One Day
Feb 13, 1960
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 103°F | July 28, 1952 |
| 2 | 103°F | July 28, 1930 |
| 3 | 100°F | July 28, 1993 |
| 4 | 97°F | July 28, 2021 |
| 5 | 97°F | July 28, 2011 |
| 6 | 97°F | July 28, 1955 |
| 7 | 96°F | July 28, 1949 |
| 8 | 96°F | July 28, 1940 |
| 9 | 96°F | July 28, 1936 |
| 10 | 96°F | July 28, 1901 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 59°F | July 28, 1962 |
| 2 | 59°F | July 28, 1911 |
| 3 | 60°F | July 28, 1881 |
| 4 | 61°F | July 28, 1984 |
| 5 | 61°F | July 28, 1920 |
Heat Wave Summary — Knoxville
threshold: 93°F (90th percentile of historical Jun–Aug highs)4.9
Avg heat wave length
days (historical)
97°
Avg peak temp
during heat waves
37
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
133 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1871–202625
2026 so far
34
Avg/year 1970–2025
43
Avg/year (last 10 complete)
78
Most in a year (1936)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Knoxville
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 7, 2007 – Aug 29, 2007 | 23 | 102°F (Aug 23) | 96°F | 72°F |
| 2 | Jul 16, 1986 – Jul 30, 1986 | 15 | 98°F (Jul 19) | 96°F | 71°F |
| 3 | Jul 11, 1951 – Jul 24, 1951 | 14 | 98°F (Jul 22) | 95°F | 70°F |
| 4 | Jul 18, 1952 – Jul 30, 1952 | 13 | 103°F (Jul 27) | 98°F | 72°F |
| 5 | Jul 2, 1993 – Jul 14, 1993 | 13 | 100°F (Jul 8) | 96°F | 71°F |
| 6 | Jul 18, 1993 – Jul 29, 1993 | 12 | 100°F (Jul 28) | 97°F | 72°F |
| 7 | Jun 28, 2012 – Jul 8, 2012 | 11 | 105°F (Jun 30) | 99°F | 70°F |
| 8 | Jun 19, 1931 – Jun 29, 1931 | 11 | 101°F (Jun 27) | 97°F | 72°F |
| 9 | Jul 11, 1980 – Jul 21, 1980 | 11 | 101°F (Jul 17) | 96°F | 74°F |
| 10 | Jul 26, 2011 – Aug 5, 2011 | 11 | 99°F (Aug 3) | 96°F | 72°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
40
2026 so far
above-normal nights
46.3
Avg / summer
1970–2020
76
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
26.97"
2026 YTD
Normal: 32.04"
-5.07"
4.41"
July so far
July normal: 5.25"
-0.84"
8.42"
Summer so far
Summer normal: 13.12"
-4.70"
11
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")