Weather on November 21
Allentown, PA
55 Years of Data
Avg High
49°F
Avg Low
32°F
Warmest
1991
60°F avg
Coldest
1987
23°F avg
About This Date
November 21st in Allentown, PA typically brings chilly fall weather, with average highs around 49°F and lows near 32°F. Over 55 years of records, the warmest November 21st was in 1991 (60°F average), while the coldest was 1987 (23°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 29% of November 21st dates historically, with the wettest November 21st recording 3.12" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for November 21st in Allentown, PA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 48° | 42° | 45° | — | — |
| 2024 | 49° | 39° | 44° | 1.63" | — |
| 2023 | 47° | 25° | 36° | 3.12" | — |
| 2022 | 42° | 19° | 31° | — | — |
| 2021 | 53° | 33° | 43° | — | — |
| 2020 | 60° | 36° | 48° | — | — |
| 2019 | 54° | 41° | 47° | — | — |
| 2018 | 45° | 27° | 36° | — | — |
| 2017 | 58° | 25° | 42° | — | — |
| 2016 | 44° | 35° | 40° | — | — |
| 2015 | 51° | 26° | 39° | — | — |
| 2014 | 35° | 17° | 26° | — | — |
| 2013 | 50° | 21° | 36° | — | — |
| 2012 | 55° | 26° | 41° | — | — |
| 2011 | 54° | 46° | 50° | 0.33" | — |
| 2010 | 48° | 29° | 38° | — | — |
| 2009 | 56° | 33° | 44° | — | — |
| 2008 | 36° | 20° | 28° | — | — |
| 2007 | 56° | 40° | 48° | — | — |
| 2006 | 47° | 27° | 37° | — | — |
| 2005 | 47° | 27° | 37° | 1.32" | — |
| 2004 | 59° | 39° | 49° | — | — |
| 2003 | 65° | 34° | 49° | — | — |
| 2002 | 45° | 28° | 36° | 0.36" | — |
| 2001 | 46° | 22° | 34° | — | — |
| 2000 | 36° | 23° | 29° | — | — |
| 1999 | 64° | 46° | 55° | — | — |
| 1998 | 45° | 31° | 38° | — | — |
| 1997 | 55° | 24° | 40° | 0.36" | — |
| 1996 | 41° | 24° | 33° | — | — |
| 1995 | 53° | 31° | 42° | — | — |
| 1994 | 57° | 37° | 47° | 2.62" | — |
| 1993 | 48° | 25° | 36° | — | — |
| 1992 | 50° | 33° | 42° | 0.41" | — |
| 1991warmest | 65° | 56° | 60° | 1.12" | — |
| 1990 | 54° | 35° | 44° | — | — |
| 1989 | 40° | 24° | 32° | — | — |
| 1988 | 55° | 37° | 46° | — | — |
| 1987coldest | 29° | 18° | 23° | — | — |
| 1986 | 43° | 33° | 38° | 0.05" | — |
| 1985 | 55° | 34° | 44° | — | — |
| 1984 | 40° | 25° | 32° | — | — |
| 1983 | 62° | 43° | 52° | 0.36" | — |
| 1982 | 56° | 47° | 51° | 0.08" | — |
| 1981 | 44° | 37° | 41° | — | — |
| 1980 | 45° | 23° | 34° | — | — |
| 1979 | 60° | 35° | 48° | — | — |
| 1978 | 37° | 33° | 35° | — | — |
| 1977 | 47° | 39° | 43° | 0.25" | — |
| 1976 | 44° | 28° | 36° | — | — |
| 1975 | 62° | 39° | 51° | 1.24" | — |
| 1974 | 49° | 35° | 42° | 0.15" | — |
| 1973 | 51° | 33° | 42° | 0.03" | — |
| 1972 | 39° | 26° | 33° | — | — |
| 1971 | 44° | 35° | 40° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP