Burlington, IA
Iowa · Records since 1897–2026
Records for August 11
🔥 Record High
August 11, 1916
+16° from 84° normal❄ Record Low
August 11, 1982
-17° from 65° normalAll-Time Records — Burlington
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 100°F | August 11, 1916 |
| 2 | 99°F | August 11, 1941 |
| 3 | 99°F | August 11, 1923 |
| 4 | 97°F | August 11, 1947 |
| 5 | 97°F | August 11, 1918 |
| 6 | 95°F | August 11, 1988 |
| 7 | 95°F | August 11, 1935 |
| 8 | 95°F | August 11, 1911 |
| 9 | 94°F | August 11, 1943 |
| 10 | 94°F | August 11, 1936 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 48°F | August 11, 1982 |
| 2 | 49°F | August 11, 2004 |
| 3 | 50°F | August 11, 1902 |
| 4 | 51°F | August 11, 1967 |
| 5 | 51°F | August 11, 1903 |
Heat Wave Summary — Burlington
threshold: 94°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date125 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1897–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Burlington
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 17, 1987 – Aug 3, 1987 | 18 | 104°F (Aug 1) | 98°F | 74°F |
| 2 | Jul 3, 1936 – Jul 18, 1936 | 16 | 111°F (Jul 14) | 105°F | 77°F |
| 3 | Jun 16, 1933 – Jun 27, 1933 | 12 | 103°F (Jun 26) | 98°F | 69°F |
| 4 | Aug 9, 1936 – Aug 19, 1936 | 11 | 105°F (Aug 18) | 100°F | 72°F |
| 5 | May 29, 1934 – Jun 8, 1934 | 11 | 104°F (Jun 1) | 99°F | 69°F |
| 6 | Jul 23, 1916 – Aug 1, 1916 | 10 | 104°F (Jul 27) | 100°F | 73°F |
| 7 | Jun 22, 1931 – Jul 1, 1931 | 10 | 102°F (Jun 27) | 100°F | 76°F |
| 8 | Aug 25, 1953 – Sep 3, 1953 | 10 | 99°F (Aug 31) | 97°F | 68°F |
| 9 | Jul 18, 1901 – Jul 26, 1901 | 9 | 107°F (Jul 24) | 101°F | 74°F |
| 10 | Aug 31, 1960 – Sep 8, 1960 | 9 | 97°F (Sep 2) | 96°F | 69°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
80th-warmest month on record
55th-warmest July of 127 on record
+0.8° vs. 75.9° average (1991–2020)Longest 90°F Streak in July
4 consecutive days with highs of at least 90°F (Jul 15–18, 2026, peaking at 92°F)
Ties the longest July streak since 2023 (3 years). The July record is 21 days, set in 1901.
Average July Temperature by Year
1899–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1936 | 86.6°F |
| 2 | 1901 | 83.7°F |
| 3 | 1934 | 83.1°F |
| 4 | 1916 | 82.8°F |
| 5 | 1999 | 81.5°F |
| 6 | 2012 | 81.1°F |
| 7 | 1935 | 80.9°F |
| 8 | 1921 | 80.9°F |
| 9 | 1955 | 80.7°F |
| 10 | 1914 | 80.5°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 1936 | 86.6°F |
| 2 | July 1901 | 83.7°F |
| 3 | July 1934 | 83.1°F |
| 4 | July 1916 | 82.8°F |
| 5 | August 1947 | 82.4°F |
| 6 | August 1936 | 81.7°F |
| 7 | July 1999 | 81.5°F |
| 8 | June 1934 | 81.3°F |
| 9 | July 2012 | 81.1°F |
| 10 | August 1983 | 81.0°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Burlington, IA | 76.7°F | 55th of 127 |
| Moline, IL | 76.5°F | 50th of 153 |
| Quincy, IL | 78.0°F | 50th of 125 |
| Peoria, IL | 77.3°F | 48th of 144 |
| Cedar Rapids, IA | 75.5°F | 43rd of 132 |