Weather on September 24
Allentown, PA
55 Years of Data
Avg High
72°F
Avg Low
50°F
Warmest
2010
77°F avg
Coldest
1974
45°F avg
About This Date
September 24th in Allentown, PA typically brings pleasant fall weather, with average highs around 72°F and lows near 50°F. Over 55 years of records, the warmest September 24th was in 2010 (77°F average), while the coldest was 1974 (45°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 29% of September 24th dates historically, with the wettest September 24th recording 5.18" of rain. The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for September 24th in Allentown, PA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 64° | 71° | 0.13" | — |
| 2024 | 68° | 58° | 63° | — | — |
| 2023 | 61° | 57° | 59° | 2.06" | — |
| 2022 | 68° | 40° | 54° | — | — |
| 2021 | 70° | 47° | 58° | — | — |
| 2020 | 74° | 51° | 62° | — | — |
| 2019 | 78° | 55° | 67° | — | — |
| 2018 | 72° | 57° | 64° | 0.03" | — |
| 2017 | 92° | 62° | 77° | — | — |
| 2016 | 75° | 51° | 63° | 0.05" | — |
| 2015 | 82° | 46° | 64° | — | — |
| 2014 | 74° | 47° | 60° | — | — |
| 2013 | 73° | 38° | 55° | — | — |
| 2012 | 65° | 42° | 53° | — | — |
| 2011 | 76° | 62° | 69° | — | — |
| 2010warmest | 88° | 66° | 77° | — | — |
| 2009 | 80° | 59° | 70° | — | — |
| 2008 | 74° | 44° | 59° | — | — |
| 2007 | 82° | 48° | 65° | — | — |
| 2006 | 78° | 58° | 68° | — | — |
| 2005 | 75° | 56° | 65° | — | — |
| 2004 | 79° | 56° | 67° | — | — |
| 2003 | 73° | 47° | 60° | — | — |
| 2002 | 76° | 44° | 60° | — | — |
| 2001 | 79° | 61° | 70° | 3.51" | — |
| 2000 | 71° | 50° | 61° | 0.28" | — |
| 1999 | 76° | 43° | 59° | — | — |
| 1998 | 69° | 36° | 52° | — | — |
| 1997 | 58° | 41° | 49° | — | — |
| 1996 | 58° | 40° | 49° | 0.15" | — |
| 1995 | 63° | 39° | 51° | 0.05" | — |
| 1994 | 76° | 63° | 69° | 0.08" | — |
| 1993 | 71° | 49° | 60° | — | — |
| 1992 | 62° | 39° | 51° | — | — |
| 1991 | 74° | 50° | 62° | 2.03" | — |
| 1990 | 63° | 42° | 52° | — | — |
| 1989 | 60° | 41° | 51° | — | — |
| 1988 | 71° | 55° | 63° | 0.15" | — |
| 1987 | 74° | 53° | 63° | — | — |
| 1986 | 78° | 64° | 71° | — | — |
| 1985 | 79° | 54° | 66° | 0.15" | — |
| 1984 | 83° | 68° | 75° | 0.1" | — |
| 1983 | 65° | 39° | 52° | — | — |
| 1982 | 71° | 48° | 60° | — | — |
| 1981 | 66° | 48° | 57° | — | — |
| 1980 | 74° | 54° | 64° | — | — |
| 1979 | 66° | 45° | 55° | — | — |
| 1978 | 70° | 45° | 57° | — | — |
| 1977 | 67° | 54° | 60° | 1.63" | — |
| 1976 | 68° | 47° | 57° | — | — |
| 1975 | 59° | 55° | 57° | 5.18" | — |
| 1974coldest | 57° | 32° | 45° | — | — |
| 1973 | 75° | 54° | 64° | — | — |
| 1972 | 62° | 46° | 54° | 0.08" | — |
| 1971 | 68° | 45° | 56° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP