Philadelphia, PA
Pennsylvania · Records since 1873–2026
⛅ 76°F
Feels like 81°
Currently in Philadelphia
As of 6:45 PM EDT
Records for July 27
🔥 Record High
100°F
July 27, 1940
+12° from 88° normal❄ Record Low
53°F
July 27, 1962
-17° from 70° normal
🌞 Normal high: 88°F 🌑 Normal low: 70°F 1991–2020 normals
All-Time Records — Philadelphia
106°F
Hottest Day Ever
Aug 7, 1918
-11°F
Coldest Day Ever
Feb 9, 1934
8.02"
Wettest Day Ever
Jul 28, 2013
27.6"
Most Snow in One Day
Jan 7, 1996
Top 10 Record Highs — July 27
| # | Temp | Date |
|---|---|---|
| 🏆 | 100°F | July 27, 1940 |
| 2 | 98°F | July 27, 2005 |
| 3 | 97°F | July 27, 1949 |
| 4 | 96°F | July 27, 1995 |
| 5 | 96°F | July 27, 1894 |
| 6 | 96°F | July 27, 1892 |
| 7 | 95°F | July 27, 2020 |
| 8 | 95°F | July 27, 1963 |
| 9 | 95°F | July 27, 1955 |
| 10 | 95°F | July 27, 1951 |
Top 5 Record Lows — July 27
| # | Temp | Date |
|---|---|---|
| 🥶 | 53°F | July 27, 1962 |
| 2 | 56°F | July 27, 1977 |
| 3 | 57°F | July 27, 1920 |
| 4 | 59°F | July 27, 1946 |
| 5 | 61°F | July 27, 1975 |
Heat Wave Summary — Philadelphia
threshold: 92°F (90th percentile of historical Jun–Aug highs)4.2
Avg heat wave length
days (historical)
97°
Avg peak temp
during heat waves
33
Dangerous nights 2026
Overnights ≥ 70°F
3
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
102 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1874–202626
2026 so far
22
Avg/year 1970–2025
35
Avg/year (last 10 complete)
55
Most in a year (2010)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Philadelphia
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 22, 1995 – Aug 5, 1995 | 15 | 98°F (Aug 2) | 94°F | 77°F |
| 2 | Aug 25, 1953 – Sep 4, 1953 | 11 | 101°F (Aug 31) | 97°F | 72°F |
| 3 | Jul 4, 1993 – Jul 14, 1993 | 11 | 101°F (Jul 10) | 97°F | 77°F |
| 4 | Jul 16, 1885 – Jul 26, 1885 | 11 | 97°F (Jul 18) | 94°F | 73°F |
| 5 | Aug 27, 1973 – Sep 5, 1973 | 10 | 99°F (Aug 28) | 96°F | 74°F |
| 6 | Jul 15, 1955 – Jul 23, 1955 | 9 | 100°F (Jul 22) | 95°F | 74°F |
| 7 | Aug 11, 2002 – Aug 19, 2002 | 9 | 99°F (Aug 13) | 95°F | 75°F |
| 8 | Aug 5, 1896 – Aug 13, 1896 | 9 | 97°F (Aug 11) | 95°F | 75°F |
| 9 | Jul 28, 2002 – Aug 4, 2002 | 8 | 99°F (Aug 1) | 96°F | 76°F |
| 10 | Jul 18, 2022 – Jul 25, 2022 | 8 | 99°F (Jul 24) | 96°F | 78°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
41
2026 so far
above-normal nights
44.3
Avg / summer
1970–2020
67
Most in a summer
2022
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
21.54"
2026 YTD
Normal: 24.31"
-2.77"
6.28"
July so far
July normal: 4.38"
+1.90"
9.68"
Summer so far
Summer normal: 12.71"
-3.03"
5
2026 heavy rain days
Days with ≥ 1.0"
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")