Middletown-Harrisburg, PA
Pennsylvania · Records since 1888–2026
Records for August 11
🔥 Record High
August 11, 1944
+14° from 85° normal❄ Record Low
August 11, 1972
-17° from 67° normalAll-Time Records — Middletown-Harrisburg
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 99°F | August 11, 1944 |
| 2 | 98°F | August 11, 1926 |
| 3 | 98°F | August 11, 1900 |
| 4 | 95°F | August 11, 2002 |
| 5 | 95°F | August 11, 1949 |
| 6 | 95°F | August 11, 1895 |
| 7 | 94°F | August 11, 2021 |
| 8 | 94°F | August 11, 2010 |
| 9 | 94°F | August 11, 1988 |
| 10 | 94°F | August 11, 1911 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 50°F | August 11, 1972 |
| 2 | 52°F | August 11, 1941 |
| 3 | 55°F | August 11, 1963 |
| 4 | 56°F | August 11, 1894 |
| 5 | 57°F | August 11, 1927 |
Heat Wave Summary — Middletown-Harrisburg
threshold: 92°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date97 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1888–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Middletown-Harrisburg
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 22, 1999 – Aug 1, 1999 | 11 | 99°F (Jul 31) | 96°F | 72°F |
| 2 | Jul 16, 1991 – Jul 24, 1991 | 9 | 103°F (Jul 23) | 98°F | 71°F |
| 3 | Aug 27, 1953 – Sep 4, 1953 | 9 | 102°F (Sep 2) | 98°F | 70°F |
| 4 | Aug 27, 1973 – Sep 4, 1973 | 9 | 100°F (Aug 28) | 95°F | 71°F |
| 5 | Jun 20, 1943 – Jun 28, 1943 | 9 | 98°F (Jun 25) | 95°F | 69°F |
| 6 | Jun 27, 1966 – Jul 4, 1966 | 8 | 107°F (Jul 3) | 99°F | 69°F |
| 7 | Jul 17, 2011 – Jul 24, 2011 | 8 | 103°F (Jul 22) | 96°F | 75°F |
| 8 | Aug 10, 1944 – Aug 17, 1944 | 8 | 101°F (Aug 12) | 97°F | 70°F |
| 9 | Jul 4, 1988 – Jul 11, 1988 | 8 | 101°F (Jul 7) | 97°F | 68°F |
| 10 | Jul 28, 2002 – Aug 4, 2002 | 8 | 100°F (Aug 2) | 96°F | 73°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
27th-warmest month on record
21st-warmest July of 139 on record
+1.0° vs. 77.2° average (1991–2020)Longest 90°F Streak in July
5 consecutive days with highs of at least 90°F (Jul 1–5, 2026, peaking at 103°F)
The longest July streak since 2024 (2 years). The July record is 11 days, set in 1991.
Average July Temperature by Year
1888–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2020 | 82.2°F |
| 2 | 1999 | 81.8°F |
| 3 | 1955 | 80.4°F |
| 4 | 2019 | 80.3°F |
| 5 | 2024 | 80.2°F |
| 6 | 2011 | 79.9°F |
| 7 | 1966 | 79.9°F |
| 8 | 2025 | 79.8°F |
| 9 | 2016 | 79.4°F |
| 10 | 2010 | 79.3°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2020 | 82.2°F |
| 2 | July 1999 | 81.8°F |
| 3 | July 1955 | 80.4°F |
| 4 | July 2019 | 80.3°F |
| 5 | July 2024 | 80.2°F |
| 6 | July 2011 | 79.9°F |
| 7 | July 1966 | 79.9°F |
| 8 | July 2025 | 79.8°F |
| 9 | July 2016 | 79.4°F |
| 10 | July 2010 | 79.3°F |