Weather on December 23
Allentown, PA
55 Years of Data
Avg High
43°F
Avg Low
26°F
Warmest
1990
60°F avg
Coldest
1989
11°F avg
About This Date
December 23rd in Allentown, PA typically brings chilly winter weather, with average highs around 43°F and lows near 26°F. Over 55 years of records, the warmest December 23rd was in 1990 (60°F average), while the coldest was 1989 (11°F) — a 49°F range across recorded history. Precipitation has occurred on 42% of recorded December 23rd dates, with snow falling 7% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 23rd in Allentown, PA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 37° | 30° | 34° | 0.28" | 0.8" |
| 2024 | 26° | 1° | 14° | — | — |
| 2023 | 42° | 27° | 35° | 0.03" | — |
| 2022 | 57° | 4° | 31° | 1.04" | 0.1" |
| 2021 | 36° | 22° | 29° | — | — |
| 2020 | 43° | 24° | 34° | — | — |
| 2019 | 56° | 25° | 41° | — | — |
| 2018 | 44° | 37° | 41° | 0.08" | — |
| 2017 | 49° | 38° | 43° | 2.34" | — |
| 2016 | 46° | 24° | 35° | — | — |
| 2015 | 65° | 52° | 58° | 1.8" | — |
| 2014 | 46° | 38° | 42° | 0.46" | — |
| 2013 | 56° | 36° | 46° | 1.73" | — |
| 2012 | 41° | 26° | 34° | — | — |
| 2011 | 48° | 30° | 39° | 1.09" | — |
| 2010 | 35° | 27° | 31° | — | — |
| 2009 | 28° | 18° | 23° | — | — |
| 2008 | 27° | 10° | 18° | — | — |
| 2007 | 61° | 35° | 48° | 1.93" | — |
| 2006 | 56° | 44° | 50° | 1.04" | — |
| 2005 | 50° | 28° | 39° | — | — |
| 2004 | 59° | 34° | 46° | 3" | — |
| 2003 | 57° | 32° | 45° | — | — |
| 2002 | 43° | 28° | 35° | — | — |
| 2001 | 47° | 21° | 34° | 0.61" | — |
| 2000 | 25° | 7° | 16° | — | — |
| 1999 | 41° | 19° | 30° | — | — |
| 1998 | 23° | 15° | 19° | — | — |
| 1997 | 40° | 31° | 35° | 0.66" | — |
| 1996 | 47° | 28° | 37° | — | — |
| 1995 | 33° | 25° | 29° | — | — |
| 1994 | 56° | 24° | 40° | — | — |
| 1993 | 38° | 20° | 29° | — | — |
| 1992 | 45° | 29° | 37° | — | — |
| 1991 | 41° | 30° | 36° | 0.25" | — |
| 1990warmest | 64° | 55° | 60° | 1.04" | — |
| 1989coldest | 20° | 2° | 11° | — | — |
| 1988 | 37° | 25° | 31° | 0.69" | 0.1" |
| 1987 | 44° | 29° | 36° | 0.05" | — |
| 1986 | 45° | 23° | 34° | — | — |
| 1985 | 42° | 28° | 35° | — | — |
| 1984 | 42° | 27° | 34° | — | — |
| 1983 | 31° | 15° | 23° | 0.13" | 0.3" |
| 1982 | 36° | 32° | 34° | 0.3" | — |
| 1981 | 46° | 33° | 40° | 0.23" | — |
| 1980 | 33° | 17° | 25° | — | — |
| 1979 | 40° | 35° | 37° | 0.03" | — |
| 1978 | 42° | 20° | 31° | — | — |
| 1977 | 40° | 25° | 32° | — | — |
| 1976 | 38° | 18° | 28° | — | — |
| 1975 | 36° | 18° | 27° | — | — |
| 1974 | 41° | 23° | 32° | — | — |
| 1973 | 41° | 28° | 35° | — | — |
| 1972 | 42° | 31° | 36° | 0.08" | — |
| 1971 | 35° | 15° | 25° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP