Indianapolis, IN
Indiana · Records since 1871–2026
Records for August 11
🔥 Record High
August 11, 1941
+14° from 85° normal❄ Record Low
August 11, 1967
-14° from 66° normalAll-Time Records — Indianapolis
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 99°F | August 11, 1941 |
| 2 | 98°F | August 11, 2010 |
| 3 | 95°F | August 11, 1944 |
| 4 | 95°F | August 11, 1874 |
| 5 | 94°F | August 11, 1935 |
| 6 | 94°F | August 11, 1896 |
| 7 | 93°F | August 11, 2016 |
| 8 | 93°F | August 11, 1988 |
| 9 | 93°F | August 11, 1926 |
| 10 | 93°F | August 11, 1911 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 52°F | August 11, 1967 |
| 2 | 52°F | August 11, 1965 |
| 3 | 53°F | August 11, 2004 |
| 4 | 53°F | August 11, 1972 |
| 5 | 53°F | August 11, 1890 |
Heat Wave Summary — Indianapolis
threshold: 92°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date119 of 222 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1871–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Indianapolis
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 17, 2011 – Aug 2, 2011 | 17 | 100°F (Jul 21) | 95°F | 75°F |
| 2 | Jul 3, 1936 – Jul 17, 1936 | 15 | 106°F (Jul 14) | 101°F | 76°F |
| 3 | Jun 28, 2012 – Jul 12, 2012 | 15 | 105°F (Jul 6) | 99°F | 73°F |
| 4 | Jul 20, 1901 – Jul 30, 1901 | 11 | 106°F (Jul 22) | 97°F | 75°F |
| 5 | Jul 21, 1940 – Jul 31, 1940 | 11 | 103°F (Jul 30) | 96°F | 76°F |
| 6 | Jul 26, 1887 – Aug 5, 1887 | 11 | 101°F (Jul 30) | 97°F | 70°F |
| 7 | Sep 7, 1897 – Sep 16, 1897 | 10 | 96°F (Sep 12) | 94°F | 68°F |
| 8 | Jul 5, 1881 – Jul 13, 1881 | 9 | 101°F (Jul 10) | 96°F | 79°F |
| 9 | Aug 18, 1936 – Aug 26, 1936 | 9 | 101°F (Aug 22) | 98°F | 75°F |
| 10 | Jul 23, 1916 – Jul 31, 1916 | 9 | 100°F (Jul 27) | 97°F | 74°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
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
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")
Month in Review — July 2026
Average temperature · July 2026
45th-warmest month on record
32nd-warmest July of 156 on record
+2.2° vs. 75.9° average (1991–2020)Longest 90°F Streak in July
5 consecutive days with highs of at least 90°F (Jul 14–18, 2026, peaking at 93°F)
Ties the longest July streak since 2025 (1 year). The July record is 18 days, set in 1901.
Average July Temperature by Year
1871–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2012 | 84.0°F |
| 2 | 1936 | 82.8°F |
| 3 | 2011 | 82.1°F |
| 4 | 1901 | 81.9°F |
| 5 | 1934 | 81.6°F |
| 6 | 1921 | 81.2°F |
| 7 | 1916 | 80.7°F |
| 8 | 1887 | 80.1°F |
| 9 | 1874 | 79.8°F |
| 10 | 1983 | 79.7°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2012 | 84.0°F |
| 2 | July 1936 | 82.8°F |
| 3 | July 2011 | 82.1°F |
| 4 | July 1901 | 81.9°F |
| 5 | July 1934 | 81.6°F |
| 6 | July 1921 | 81.2°F |
| 7 | July 1916 | 80.7°F |
| 8 | August 1936 | 80.5°F |
| 9 | July 1887 | 80.1°F |
| 10 | August 1983 | 80.1°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Indianapolis, IN | 78.1°F | 32nd of 156 |
| Cincinnati, OH | 77.2°F | 55th of 155 |
| Dayton, OH | 76.0°F | 48th of 134 |
| Fort Wayne, IN | 75.1°F | 30th of 125 |
| Louisville, KY | 79.9°F | 43rd of 154 |