Weather on November 20
Allentown, PA
55 Years of Data
Avg High
51°F
Avg Low
32°F
Warmest
1985
63°F avg
Coldest
1984
27°F avg
About This Date
November 20th in Allentown, PA typically brings cool fall weather, with average highs around 51°F and lows near 32°F. Over 55 years of records, the warmest November 20th was in 1985 (63°F average), while the coldest was 1984 (27°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 35% of November 20th dates historically, with the wettest November 20th recording 6.5" of rain. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Allentown, PA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 46° | 27° | 36° | — | — |
| 2024 | 60° | 48° | 54° | 0.89" | — |
| 2023 | 47° | 26° | 37° | — | — |
| 2022 | 34° | 20° | 27° | — | — |
| 2021 | 46° | 24° | 35° | — | — |
| 2020 | 63° | 28° | 46° | — | — |
| 2019 | 50° | 38° | 44° | — | — |
| 2018 | 47° | 34° | 40° | — | — |
| 2017 | 46° | 30° | 38° | 0.05" | — |
| 2016 | 41° | 35° | 38° | — | — |
| 2015 | 59° | 29° | 44° | — | — |
| 2014 | 45° | 20° | 33° | — | — |
| 2013 | 46° | 27° | 37° | — | — |
| 2012 | 51° | 28° | 40° | — | — |
| 2011 | 63° | 36° | 49° | 0.03" | — |
| 2010 | 53° | 26° | 40° | — | — |
| 2009 | 60° | 35° | 48° | 0.86" | — |
| 2008 | 37° | 28° | 33° | — | — |
| 2007 | 44° | 35° | 40° | 0.36" | — |
| 2006 | 40° | 32° | 36° | — | — |
| 2005 | 56° | 23° | 39° | — | — |
| 2004 | 50° | 45° | 47° | 0.66" | — |
| 2003 | 51° | 34° | 42° | 0.15" | — |
| 2002 | 57° | 29° | 43° | — | — |
| 2001 | 50° | 28° | 39° | 0.43" | — |
| 2000 | 44° | 16° | 30° | — | — |
| 1999 | 64° | 38° | 51° | 0.15" | — |
| 1998 | 55° | 42° | 49° | 0.23" | — |
| 1997 | 50° | 23° | 37° | — | — |
| 1996 | 41° | 22° | 31° | — | — |
| 1995 | 42° | 32° | 37° | — | — |
| 1994 | 51° | 37° | 44° | — | — |
| 1993 | 49° | 32° | 40° | 0.03" | — |
| 1992 | 45° | 26° | 35° | — | — |
| 1991 | 71° | 40° | 55° | — | — |
| 1990 | 51° | 32° | 42° | — | — |
| 1989 | 60° | 32° | 46° | 0.56" | — |
| 1988 | 60° | 39° | 50° | 6.5" | — |
| 1987 | 48° | 29° | 38° | — | — |
| 1986 | 42° | 21° | 32° | 3.78" | — |
| 1985warmest | 75° | 52° | 63° | — | — |
| 1984coldest | 35° | 19° | 27° | — | — |
| 1983 | 60° | 40° | 50° | 1.83" | — |
| 1982 | 52° | 42° | 47° | 0.13" | — |
| 1981 | 52° | 43° | 47° | 1.17" | — |
| 1980 | 42° | 28° | 35° | — | — |
| 1979 | 60° | 41° | 51° | — | — |
| 1978 | 47° | 30° | 38° | — | — |
| 1977 | 46° | 28° | 37° | — | — |
| 1976 | 46° | 31° | 38° | — | — |
| 1975 | 66° | 37° | 52° | — | — |
| 1974 | 51° | 45° | 48° | 0.76" | — |
| 1973 | 49° | 29° | 39° | — | — |
| 1972 | 44° | 32° | 38° | 0.61" | — |
| 1971 | 49° | 34° | 41° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP