Springfield, IL
Illinois · Records since 1879–2026
Records for August 11
🔥 Record High
August 11, 1941
+15° from 86° normal❄ Record Low
August 11, 2004
-19° from 65° normalAll-Time Records — Springfield
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 101°F | August 11, 1941 |
| 2 | 100°F | August 11, 1944 |
| 3 | 99°F | August 11, 1935 |
| 4 | 99°F | August 11, 1926 |
| 5 | 97°F | August 11, 1923 |
| 6 | 97°F | August 11, 1887 |
| 7 | 97°F | August 11, 1881 |
| 8 | 96°F | August 11, 2005 |
| 9 | 96°F | August 11, 1943 |
| 10 | 96°F | August 11, 1937 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 46°F | August 11, 2004 |
| 2 | 50°F | August 11, 1967 |
| 3 | 51°F | August 11, 2012 |
| 4 | 51°F | August 11, 1890 |
| 5 | 52°F | August 11, 2008 |
Heat Wave Summary — Springfield
threshold: 94°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date116 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1879–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Springfield
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jun 17, 1933 – Jul 2, 1933 | 16 | 101°F (Jun 30) | 97°F | 73°F |
| 2 | Jul 3, 1936 – Jul 17, 1936 | 15 | 110°F (Jul 14) | 104°F | 79°F |
| 3 | Aug 12, 1936 – Aug 26, 1936 | 15 | 106°F (Aug 18) | 101°F | 76°F |
| 4 | Jul 15, 1901 – Jul 28, 1901 | 14 | 107°F (Jul 22) | 98°F | 73°F |
| 5 | Jul 5, 1879 – Jul 16, 1879 | 12 | 102°F (Jul 11) | 97°F | 76°F |
| 6 | Jun 28, 2012 – Jul 7, 2012 | 10 | 104°F (Jul 6) | 100°F | 72°F |
| 7 | Aug 25, 1953 – Sep 3, 1953 | 10 | 99°F (Sep 1) | 96°F | 69°F |
| 8 | Jul 18, 1934 – Jul 26, 1934 | 9 | 107°F (Jul 24) | 102°F | 78°F |
| 9 | Jun 24, 1931 – Jul 2, 1931 | 9 | 102°F (Jun 29) | 100°F | 78°F |
| 10 | Jul 5, 1914 – Jul 13, 1914 | 9 | 101°F (Jul 11) | 96°F | 71°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
115th-warmest month on record
70th-warmest July of 148 on record
+0.6° vs. 76.1° average (1991–2020)Longest 90°F Streak in July
3 consecutive days with highs of at least 90°F (Jul 1–3, 2026, peaking at 92°F)
Ties the longest July streak since 2025 (1 year). The July record is 21 days, set in 1916.
Average July Temperature by Year
1879–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1936 | 86.2°F |
| 2 | 1934 | 83.5°F |
| 3 | 1916 | 83.0°F |
| 4 | 2012 | 82.9°F |
| 5 | 1901 | 82.8°F |
| 6 | 2011 | 81.4°F |
| 7 | 1935 | 81.4°F |
| 8 | 1980 | 81.4°F |
| 9 | 1931 | 81.2°F |
| 10 | 1921 | 81.2°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 1936 | 86.2°F |
| 2 | August 1947 | 84.4°F |
| 3 | July 1934 | 83.5°F |
| 4 | July 1916 | 83.0°F |
| 5 | July 2012 | 82.9°F |
| 6 | July 1901 | 82.8°F |
| 7 | August 1936 | 82.5°F |
| 8 | June 1934 | 81.5°F |
| 9 | July 2011 | 81.4°F |
| 10 | July 1935 | 81.4°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Springfield, IL | 76.7°F | 70th of 148 |
| Peoria, IL | 77.3°F | 48th of 144 |
| St Louis, MO | 80.5°F | 53rd of 153 |
| Quincy, IL | 78.0°F | 50th of 125 |
| Burlington, IA | 76.7°F | 55th of 127 |