San Diego, CA
California · Records since 1874–2026
Records for August 11
🔥 Record High
August 11, 2018
+11° from 77° normal❄ Record Low
August 11, 1894
-10° from 68° normalAll-Time Records — San Diego
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 88°F | August 11, 2018 |
| 2 | 86°F | August 11, 1994 |
| 3 | 85°F | August 11, 1946 |
| 4 | 85°F | August 11, 1891 |
| 5 | 84°F | August 11, 1879 |
| 6 | 83°F | August 11, 2022 |
| 7 | 83°F | August 11, 1998 |
| 8 | 83°F | August 11, 1983 |
| 9 | 82°F | August 11, 2021 |
| 10 | 82°F | August 11, 1992 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 58°F | August 11, 1894 |
| 2 | 59°F | August 11, 1923 |
| 3 | 59°F | August 11, 1911 |
| 4 | 59°F | August 11, 1900 |
| 5 | 60°F | August 11, 1932 |
Heat Wave Summary — San Diego
threshold: 80°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date139 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1874–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — San Diego
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 23, 1983 – Sep 21, 1983 | 30 | 92°F (Sep 10) | 84°F | 72°F |
| 2 | Sep 2, 1984 – Sep 20, 1984 | 19 | 100°F (Sep 8) | 86°F | 75°F |
| 3 | Jul 29, 2018 – Aug 14, 2018 | 17 | 91°F (Aug 7) | 86°F | 74°F |
| 4 | Jul 18, 1960 – Aug 3, 1960 | 17 | 89°F (Jul 23) | 83°F | 68°F |
| 5 | Jul 9, 1981 – Jul 24, 1981 | 16 | 85°F (Jul 21) | 82°F | 71°F |
| 6 | Aug 30, 2022 – Sep 13, 2022 | 15 | 95°F (Sep 3) | 87°F | 72°F |
| 7 | Aug 25, 1995 – Sep 8, 1995 | 15 | 88°F (Sep 2) | 83°F | 67°F |
| 8 | Aug 25, 1952 – Sep 7, 1952 | 14 | 90°F (Sep 6) | 84°F | 66°F |
| 9 | Jul 7, 1984 – Jul 20, 1984 | 14 | 90°F (Jul 15) | 85°F | 73°F |
| 10 | Sep 10, 1979 – Sep 22, 1979 | 13 | 100°F (Sep 15) | 88°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
75th-warmest month on record
15th-warmest July of 152 on record
+2.1° vs. 70.3° average (1991–2020)Average July Temperature by Year
1875–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1984 | 77.2°F |
| 2 | 2006 | 76.3°F |
| 3 | 1981 | 75.6°F |
| 4 | 1985 | 75.3°F |
| 5 | 2018 | 74.9°F |
| 6 | 1959 | 73.7°F |
| 7 | 2014 | 73.7°F |
| 8 | 1931 | 73.6°F |
| 9 | 2021 | 73.1°F |
| 10 | 2017 | 73.0°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | September 1984 | 78.9°F |
| 2 | August 2018 | 78.1°F |
| 3 | August 1983 | 77.4°F |
| 4 | July 1984 | 77.2°F |
| 5 | September 2015 | 77.2°F |
| 6 | September 1983 | 76.8°F |
| 7 | August 1984 | 76.5°F |
| 8 | July 2006 | 76.3°F |
| 9 | September 1979 | 76.3°F |
| 10 | August 1981 | 75.8°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| San Diego, CA | 72.4°F | 15th of 152 |
| El Cajon, CA | 77.1°F | 8th of 111 |
| Ramona, CA | 74.8°F | 8th of 47 |
| Escondido, CA | 79.7°F | 2nd of 123 |
| Palm Springs, CA | 96.1°F | 8th of 91 |