Rochester, NY
New York · Records since 1872–2026
Records for August 11
🔥 Record High
August 11, 1944
+16° from 81° normal❄ Record Low
August 11, 1982
-13° from 62° normalAll-Time Records — Rochester
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 97°F | August 11, 1944 |
| 2 | 97°F | August 11, 1893 |
| 3 | 94°F | August 11, 2016 |
| 4 | 93°F | August 11, 1947 |
| 5 | 93°F | August 11, 1900 |
| 6 | 93°F | August 11, 1891 |
| 7 | 92°F | August 11, 2025 |
| 8 | 92°F | August 11, 2002 |
| 9 | 92°F | August 11, 1918 |
| 10 | 92°F | August 11, 1876 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 49°F | August 11, 1982 |
| 2 | 49°F | August 11, 1962 |
| 3 | 49°F | August 11, 1894 |
| 4 | 50°F | August 11, 1996 |
| 5 | 51°F | August 11, 1986 |
Heat Wave Summary — Rochester
threshold: 89°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date94 of 222 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1872–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Rochester
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 27, 1953 – Sep 4, 1953 | 9 | 99°F (Sep 3) | 95°F | 68°F |
| 2 | Aug 28, 1973 – Sep 5, 1973 | 9 | 95°F (Sep 4) | 93°F | 70°F |
| 3 | Aug 9, 1944 – Aug 16, 1944 | 8 | 97°F (Aug 11) | 93°F | 68°F |
| 4 | Jul 30, 1955 – Aug 6, 1955 | 8 | 96°F (Aug 1) | 93°F | 71°F |
| 5 | Jun 25, 1963 – Jul 2, 1963 | 8 | 95°F (Jul 2) | 92°F | 62°F |
| 6 | Jul 2, 1921 – Jul 8, 1921 | 7 | 97°F (Jul 8) | 94°F | 72°F |
| 7 | Aug 10, 2002 – Aug 16, 2002 | 7 | 97°F (Aug 14) | 92°F | 67°F |
| 8 | Aug 5, 1900 – Aug 11, 1900 | 7 | 96°F (Aug 6) | 94°F | 71°F |
| 9 | Jun 29, 2018 – Jul 5, 2018 | 7 | 96°F (Jul 4) | 93°F | 69°F |
| 10 | Jun 2, 1925 – Jun 8, 1925 | 7 | 95°F (Jun 5) | 92°F | 70°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
73rd-warmest month on record
53rd-warmest July of 154 on record
+0.6° vs. 71.6° 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 94°F)
The longest July streak since 2020 (6 years). The July record is 6 days, set in 1936.
Average July Temperature by Year
1872–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1921 | 77.8°F |
| 2 | 1952 | 75.8°F |
| 3 | 1916 | 75.7°F |
| 4 | 2020 | 75.6°F |
| 5 | 1935 | 75.6°F |
| 6 | 1955 | 75.4°F |
| 7 | 2018 | 75.2°F |
| 8 | 2006 | 75.0°F |
| 9 | 1931 | 74.8°F |
| 10 | 2016 | 74.8°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 1921 | 77.8°F |
| 2 | August 2016 | 75.9°F |
| 3 | July 1952 | 75.8°F |
| 4 | July 1916 | 75.7°F |
| 5 | July 2020 | 75.6°F |
| 6 | July 1935 | 75.6°F |
| 7 | July 1955 | 75.4°F |
| 8 | July 2018 | 75.2°F |
| 9 | August 1947 | 75.0°F |
| 10 | July 2006 | 75.0°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Rochester, NY | 72.3°F | 53rd of 154 |
| Buffalo, NY | 72.8°F | 31st of 153 |
| Syracuse, NY | 73.5°F | 27th of 124 |
| Oswego, NY | 73.1°F | 20th of 100 |
| Fredonia, NY | 73.4°F | 23rd of 110 |