Lancaster, CA
California · Records since 1945–2026
Records for August 11
🔥 Record High
August 11, 2012
+11° from 98° normal❄ Record Low
August 11, 1949
-19° from 66° normalAll-Time Records — Lancaster
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 109°F | August 11, 2012 |
| 2 | 109°F | August 11, 2002 |
| 3 | 107°F | August 11, 2025 |
| 4 | 107°F | August 11, 2004 |
| 5 | 107°F | August 11, 1980 |
| 6 | 106°F | August 11, 2001 |
| 7 | 106°F | August 11, 1953 |
| 8 | 105°F | August 11, 1970 |
| 9 | 105°F | August 11, 1955 |
| 10 | 104°F | August 11, 1958 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 47°F | August 11, 1949 |
| 2 | 54°F | August 11, 1997 |
| 3 | 54°F | August 11, 1948 |
| 4 | 55°F | August 11, 2016 |
| 5 | 55°F | August 11, 1962 |
Heat Wave Summary — Lancaster
threshold: 104°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date136 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1945–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Lancaster
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 2, 2024 – Jul 13, 2024 | 12 | 115°F (Jul 7) | 110°F | 73°F |
| 2 | Aug 29, 1955 – Sep 8, 1955 | 11 | 110°F (Sep 6) | 107°F | 63°F |
| 3 | Jun 17, 2017 – Jun 26, 2017 | 10 | 110°F (Jun 19) | 107°F | 70°F |
| 4 | Aug 30, 2022 – Sep 7, 2022 | 9 | 113°F (Sep 2) | 109°F | 71°F |
| 5 | Aug 26, 1950 – Sep 3, 1950 | 9 | 112°F (Sep 2) | 108°F | 67°F |
| 6 | Aug 6, 2012 – Aug 14, 2012 | 9 | 109°F (Aug 9) | 107°F | 71°F |
| 7 | Jul 6, 2021 – Jul 13, 2021 | 8 | 113°F (Jul 10) | 108°F | 77°F |
| 8 | Jul 19, 2006 – Jul 26, 2006 | 8 | 111°F (Jul 23) | 107°F | 73°F |
| 9 | Aug 14, 2020 – Aug 21, 2020 | 8 | 111°F (Aug 16) | 109°F | 72°F |
| 10 | Jul 12, 2005 – Jul 19, 2005 | 8 | 110°F (Jul 18) | 108°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
23rd-warmest month on record
20th-warmest July of 81 on record
+1.8° vs. 82.6° average (1991–2020)Longest 90°F Streak in July
29 consecutive days with highs of at least 90°F (Jul 3–31, 2026, peaking at 107°F)
The longest July streak since 2024 (2 years). The July record is 31 days, set in 2024.
Average July Temperature by Year
1945–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2024 | 88.1°F |
| 2 | 2021 | 87.3°F |
| 3 | 2018 | 87.2°F |
| 4 | 2017 | 87.0°F |
| 5 | 2023 | 86.8°F |
| 6 | 2003 | 86.2°F |
| 7 | 2006 | 85.8°F |
| 8 | 2022 | 85.7°F |
| 9 | 2005 | 85.4°F |
| 10 | 1996 | 85.2°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2024 | 88.1°F |
| 2 | August 2022 | 87.3°F |
| 3 | July 2021 | 87.3°F |
| 4 | July 2018 | 87.2°F |
| 5 | July 2017 | 87.0°F |
| 6 | July 2023 | 86.8°F |
| 7 | July 2003 | 86.2°F |
| 8 | July 2006 | 85.8°F |
| 9 | August 2012 | 85.7°F |
| 10 | July 2022 | 85.7°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Lancaster, CA | 84.4°F | 20th of 81 |
| Palmdale, CA | 83.3°F | 30th of 94 |
| Burbank Glendale Pasadena, CA | 78.3°F | 6th of 78 |
| Los Angeles Downtown, CA | 76.6°F | 12th of 150 |
| Los Angeles Airport, CA | 72.2°F | 5th of 82 |