Del Rio, TX
Texas · Records since 1905–2026
Records for September 11
🔥 Record High
September 11, 2000
+9° from 95° normal❄ Record Low
September 11, 2020
-16° from 74° normalAll-Time Records — Del Rio
First & Last Dates — Del Rio
How early and how late each seasonal turning point has ever arrived, across the full period of record
Top 10 Record Highs — September 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 104°F | September 11, 2000 |
| 2 | 102°F | September 11, 2023 |
| 3 | 102°F | September 11, 1965 |
| 4 | 102°F | September 11, 1930 |
| 5 | 101°F | September 11, 1964 |
| 6 | 100°F | September 11, 1911 |
| 7 | 99°F | September 11, 2011 |
| 8 | 99°F | September 11, 1951 |
| 9 | 99°F | September 11, 1912 |
| 10 | 98°F | September 11, 2014 |
Top 5 Record Lows — September 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 58°F | September 11, 2020 |
| 2 | 60°F | September 11, 1935 |
| 3 | 63°F | September 11, 1907 |
| 4 | 64°F | September 11, 2017 |
| 5 | 64°F | September 11, 1979 |
Heat Wave Summary — Del Rio
threshold: 102°F (90th percentile of historical Jun–Aug highs)Days ≥ 90°F Per Year
1906–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Del Rio
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 30, 2024 – Aug 24, 2024 | 26 | 113°F (Aug 22) | 106°F | 82°F |
| 2 | Jul 30, 2023 – Aug 21, 2023 | 23 | 111°F (Aug 10) | 108°F | 82°F |
| 3 | Jul 9, 2023 – Jul 28, 2023 | 20 | 108°F (Jul 13) | 106°F | 81°F |
| 4 | Jul 11, 1980 – Jul 30, 1980 | 20 | 107°F (Jul 28) | 103°F | 77°F |
| 5 | Jul 31, 2020 – Aug 17, 2020 | 18 | 108°F (Aug 15) | 104°F | 79°F |
| 6 | Aug 5, 2019 – Aug 21, 2019 | 17 | 108°F (Aug 13) | 105°F | 80°F |
| 7 | Jul 10, 1998 – Jul 26, 1998 | 17 | 107°F (Jul 12) | 104°F | 81°F |
| 8 | Jun 18, 1980 – Jul 3, 1980 | 16 | 108°F (Jun 27) | 104°F | 79°F |
| 9 | Jul 3, 2020 – Jul 17, 2020 | 15 | 112°F (Jul 13) | 107°F | 81°F |
| 10 | Jun 18, 2023 – Jun 30, 2023 | 13 | 115°F (Jun 21) | 109°F | 82°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
Annual totals and trend across the full period of record · see this year's standing →
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1905–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Since 1905, annual totals have trended
+0.07" per decade,
about +0.9"
across the record.
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")
This Year — 2026
How Del Rio is tracking against normal, year to date
Daily High Temperature vs Normal
101 of 253 days with data were above the 1991–2020 normal high for their date.
Precipitation, Year to Date
Accumulation vs. Normal
Running total since Jan 1 against the normal pace for the same date · Del Rio is 0.05" ahead of the normal pace
Period Review — Sep 1 – Sep 10, 2026
Any window, evaluated against every other year on record — 10 days
Average Temperature by Year — Sep 1 – Sep 10
1906–2026 · 2026 highlighted · trend +0.14° per decade (warming since 1906)
Precipitation by Year — Sep 1 – Sep 10
1906–2026 · 2026 highlighted · trend +0.03" per decade (wetter since 1906)
Warmest Sep 1 – Sep 10 on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2023 | 91.1°F |
| 2 | 2021 | 90.5°F |
| 3 | 2000 | 90.2°F |
| 4 | 2026 | 89.9°F |
| 5 | 1951 | 88.9°F |
| 6 | 2012 | 88.6°F |
| 7 | 2019 | 87.5°F |
| 8 | 2015 | 87.5°F |
| 9 | 1989 | 87.3°F |
| 10 | 1911 | 87.2°F |
Coolest Sep 1 – Sep 10 on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1974 | 75.1°F |
| 2 | 1932 | 76.3°F |
| 3 | 1953 | 76.4°F |
| 4 | 2004 | 76.9°F |
| 5 | 1906 | 77.8°F |
| 6 | 1967 | 78.2°F |
| 7 | 1918 | 78.3°F |
| 8 | 1935 | 78.4°F |
| 9 | 1944 | 78.6°F |
| 10 | 1925 | 79.1°F |
Wettest Sep 1 – Sep 10 on Record
| # | Year | Total |
|---|---|---|
| 1 | 2024 | 6.55" |
| 2 | 1935 | 5.25" |
| 3 | 1953 | 4.52" |
| 4 | 2018 | 3.95" |
| 5 | 1932 | 3.86" |
| 6 | 1967 | 3.76" |
| 7 | 1942 | 3.75" |
| 8 | 1986 | 3.66" |
| 9 | 1906 | 3.60" |
| 10 | 2007 | 3.41" |
Driest Sep 1 – Sep 10 on Record
| # | Year | Total |
|---|---|---|
| 1 | 2026 | 0.00" |
| 2 | 2023 | 0.00" |
| 3 | 2021 | 0.00" |
| 4 | 2019 | 0.00" |
| 5 | 2012 | 0.00" |
| 6 | 2011 | 0.00" |
| 7 | 2005 | 0.00" |
| 8 | 2000 | 0.00" |
| 9 | 1999 | 0.00" |
| 10 | 1998 | 0.00" |