Jefferson City, MO
Missouri · Records since 1894–2026
Records for August 11
🔥 Record High
August 11, 1918
+18° from 88° normal❄ Record Low
August 11, 1960
-19° from 68° normalAll-Time Records — Jefferson City
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 106°F | August 11, 1918 |
| 2 | 104°F | August 11, 1911 |
| 3 | 102°F | August 11, 2007 |
| 4 | 102°F | August 11, 1980 |
| 5 | 102°F | August 11, 1909 |
| 6 | 101°F | August 11, 1934 |
| 7 | 100°F | August 11, 1941 |
| 8 | 100°F | August 11, 1926 |
| 9 | 100°F | August 11, 1923 |
| 10 | 100°F | August 11, 1907 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 49°F | August 11, 1960 |
| 2 | 50°F | August 11, 1972 |
| 3 | 52°F | August 11, 2004 |
| 4 | 53°F | August 11, 1986 |
| 5 | 53°F | August 11, 1931 |
Heat Wave Summary — Jefferson City
threshold: 97°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date128 of 222 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1895–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Jefferson City
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 8, 1934 – Jul 25, 1934 | 18 | 112°F (Jul 24) | 106°F | 76°F |
| 2 | Jul 3, 1936 – Jul 19, 1936 | 17 | 112°F (Jul 14) | 105°F | 74°F |
| 3 | Jul 5, 1980 – Jul 21, 1980 | 17 | 108°F (Jul 16) | 104°F | 75°F |
| 4 | Aug 12, 1936 – Aug 28, 1936 | 17 | 106°F (Aug 15) | 102°F | 76°F |
| 5 | Jun 20, 1901 – Jul 6, 1901 | 17 | 105°F (Jun 26) | 103°F | 74°F |
| 6 | Aug 3, 1934 – Aug 15, 1934 | 13 | 111°F (Aug 9) | 105°F | 75°F |
| 7 | Jun 27, 2012 – Jul 7, 2012 | 11 | 107°F (Jun 28) | 103°F | 73°F |
| 8 | Jul 24, 1953 – Aug 3, 1953 | 11 | 104°F (Jul 31) | 101°F | 70°F |
| 9 | Jul 24, 1940 – Aug 3, 1940 | 11 | 102°F (Jul 29) | 101°F | 72°F |
| 10 | Jul 25, 1987 – Aug 3, 1987 | 10 | 106°F (Aug 2) | 100°F | 68°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
49th-warmest month on record
30th-warmest July of 125 on record
+1.2° vs. 78.5° average (1991–2020)Longest 90°F Streak in July
5 consecutive days with highs of at least 90°F (Jul 17–21, 2026, peaking at 95°F)
The longest July streak since 2025 (1 year). The July record is 29 days, set in 1936.
Average July Temperature by Year
1895–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1934 | 87.7°F |
| 2 | 1901 | 87.4°F |
| 3 | 1936 | 86.7°F |
| 4 | 1980 | 85.0°F |
| 5 | 2012 | 84.9°F |
| 6 | 2011 | 84.8°F |
| 7 | 1954 | 84.2°F |
| 8 | 1916 | 82.3°F |
| 9 | 2025 | 82.1°F |
| 10 | 2022 | 81.9°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 1934 | 87.7°F |
| 2 | July 1901 | 87.4°F |
| 3 | July 1936 | 86.7°F |
| 4 | July 1980 | 85.0°F |
| 5 | July 2012 | 84.9°F |
| 6 | July 2011 | 84.8°F |
| 7 | August 1936 | 84.5°F |
| 8 | July 1954 | 84.2°F |
| 9 | August 1947 | 82.9°F |
| 10 | August 1918 | 82.6°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Jefferson City, MO | 79.7°F | 30th of 125 |
| Columbia, MO | 78.7°F | 55th of 137 |
| Quincy, IL | 78.0°F | 50th of 125 |
| St Louis, MO | 80.5°F | 53rd of 153 |
| Springfield, MO | 80.2°F | 20th of 139 |