Cedar Rapids, IA
Iowa · Records since 1893–2026
Records for August 11
🔥 Record High
August 11, 1941
+18° from 82° normal❄ Record Low
August 11, 2004
-14° from 61° normalAll-Time Records — Cedar Rapids
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 100°F | August 11, 1941 |
| 2 | 97°F | August 11, 1918 |
| 3 | 97°F | August 11, 1899 |
| 4 | 96°F | August 11, 1923 |
| 5 | 96°F | August 11, 1911 |
| 6 | 95°F | August 11, 1995 |
| 7 | 95°F | August 11, 1988 |
| 8 | 95°F | August 11, 1920 |
| 9 | 95°F | August 11, 1900 |
| 10 | 94°F | August 11, 1947 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 47°F | August 11, 2004 |
| 2 | 47°F | August 11, 1930 |
| 3 | 49°F | August 11, 1982 |
| 4 | 50°F | August 11, 2024 |
| 5 | 50°F | August 11, 1986 |
Heat Wave Summary — Cedar Rapids
threshold: 93°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date129 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1893–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Cedar Rapids
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 9, 1901 – Jul 27, 1901 | 19 | 107°F (Jul 21) | 100°F | 71°F |
| 2 | Jul 3, 1936 – Jul 18, 1936 | 16 | 109°F (Jul 14) | 101°F | 69°F |
| 3 | Jul 23, 1941 – Aug 3, 1941 | 12 | 100°F (Jul 29) | 95°F | 70°F |
| 4 | Jul 23, 1916 – Aug 1, 1916 | 10 | 103°F (Jul 27) | 100°F | 71°F |
| 5 | Jun 22, 1931 – Jul 1, 1931 | 10 | 103°F (Jun 26) | 101°F | 72°F |
| 6 | Aug 3, 1900 – Aug 12, 1900 | 10 | 97°F (Aug 5) | 96°F | 71°F |
| 7 | Aug 30, 1899 – Sep 7, 1899 | 9 | 102°F (Sep 5) | 96°F | 68°F |
| 8 | Jul 26, 1955 – Aug 3, 1955 | 9 | 102°F (Jul 30) | 98°F | 74°F |
| 9 | Aug 25, 1953 – Sep 2, 1953 | 9 | 100°F (Aug 30) | 96°F | 67°F |
| 10 | Jun 18, 1910 – Jun 26, 1910 | 9 | 98°F (Jun 19) | 96°F | 66°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
63rd-warmest month on record
43rd-warmest July of 132 on record
+2.4° vs. 73.0° average (1991–2020)Longest 90°F Streak in July
4 consecutive days with highs of at least 90°F (Jul 14–17, 2026, peaking at 90°F)
Ties the longest July streak since 2023 (3 years). The July record is 19 days, set in 1901.
Average July Temperature by Year
1893–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1901 | 83.0°F |
| 2 | 1916 | 81.6°F |
| 3 | 1921 | 81.2°F |
| 4 | 1936 | 80.7°F |
| 5 | 1955 | 79.9°F |
| 6 | 1919 | 79.7°F |
| 7 | 2012 | 79.3°F |
| 8 | 1914 | 78.5°F |
| 9 | 1913 | 78.1°F |
| 10 | 1935 | 78.0°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 1901 | 83.0°F |
| 2 | July 1916 | 81.6°F |
| 3 | July 1921 | 81.2°F |
| 4 | July 1936 | 80.7°F |
| 5 | August 1947 | 80.4°F |
| 6 | July 1955 | 79.9°F |
| 7 | July 1919 | 79.7°F |
| 8 | August 1995 | 79.5°F |
| 9 | August 1900 | 79.4°F |
| 10 | July 2012 | 79.3°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Cedar Rapids, IA | 75.5°F | 43rd of 132 |
| Waterloo, IA | 75.8°F | 27th of 132 |
| Dubuque, IA | 75.3°F | 41st of 151 |
| Moline, IL | 76.5°F | 50th of 153 |
| Burlington, IA | 76.7°F | 55th of 127 |