Weather on December 17
Allentown, PA
55 Years of Data
Avg High
41°F
Avg Low
27°F
Warmest
2015
50°F avg
Coldest
1980
16°F avg
About This Date
December 17th in Allentown, PA typically brings chilly winter weather, with average highs around 41°F and lows near 27°F. Over 55 years of records, the warmest December 17th was in 2015 (50°F average), while the coldest was 1980 (16°F) — a 34°F range across recorded history. Precipitation has occurred on 36% of recorded December 17th dates, with snow falling 11% of the time (heaviest snowfall: 2.3"). 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 17th in Allentown, PA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 39° | 13° | 26° | — | — |
| 2024 | 54° | 34° | 44° | — | — |
| 2023 | 55° | 40° | 47° | 3.28" | — |
| 2022 | 41° | 31° | 36° | — | — |
| 2021 | 57° | 37° | 47° | — | — |
| 2020 | 34° | 17° | 26° | 0.71" | 2.3" |
| 2019 | 37° | 33° | 35° | 0.86" | — |
| 2018 | 46° | 37° | 42° | — | — |
| 2017 | 38° | 30° | 34° | — | — |
| 2016 | 35° | 24° | 30° | 0.89" | 0.4" |
| 2015warmest | 52° | 48° | 50° | 2.31" | — |
| 2014 | 51° | 37° | 44° | — | — |
| 2013 | 24° | 9° | 17° | 0.36" | 2.1" |
| 2012 | 42° | 39° | 41° | 0.79" | — |
| 2011 | 39° | 25° | 32° | 0.03" | — |
| 2010 | 32° | 13° | 22° | — | — |
| 2009 | 32° | 19° | 26° | — | — |
| 2008 | 40° | 30° | 35° | 0.48" | — |
| 2007 | 34° | 27° | 30° | — | — |
| 2006 | 58° | 27° | 42° | — | — |
| 2005 | 39° | 24° | 32° | — | — |
| 2004 | 43° | 20° | 31° | — | — |
| 2003 | 39° | 29° | 34° | 2.44" | — |
| 2002 | 35° | 19° | 27° | — | — |
| 2001 | 47° | 37° | 42° | 0.43" | — |
| 2000 | 63° | 25° | 44° | 5.49" | — |
| 1999 | 42° | 25° | 33° | — | — |
| 1998 | 42° | 32° | 37° | 0.08" | — |
| 1997 | 51° | 23° | 37° | — | — |
| 1996 | 51° | 40° | 45° | 0.08" | — |
| 1995 | 35° | 21° | 28° | — | — |
| 1994 | 42° | 36° | 39° | 0.25" | — |
| 1993 | 42° | 23° | 33° | — | — |
| 1992 | 46° | 38° | 42° | 1.88" | — |
| 1991 | 31° | 21° | 26° | — | — |
| 1990 | 44° | 31° | 37° | — | — |
| 1989 | 24° | 11° | 17° | — | — |
| 1988 | 28° | 15° | 22° | — | — |
| 1987 | 38° | 30° | 34° | — | — |
| 1986 | 43° | 33° | 38° | — | — |
| 1985 | 37° | 26° | 32° | — | — |
| 1984 | 54° | 42° | 48° | — | — |
| 1983 | 35° | 23° | 29° | — | — |
| 1982 | 42° | 22° | 32° | — | — |
| 1981 | 29° | 23° | 26° | 0.1" | 0.8" |
| 1980coldest | 27° | 5° | 16° | — | — |
| 1979 | 43° | 20° | 31° | — | — |
| 1978 | 42° | 32° | 37° | 0.05" | — |
| 1977 | 39° | 27° | 33° | — | — |
| 1976 | 38° | 27° | 32° | — | — |
| 1975 | 43° | 21° | 32° | — | — |
| 1974 | 44° | 30° | 37° | — | — |
| 1973 | 25° | 16° | 20° | 1.3" | 1.7" |
| 1972 | 25° | 15° | 20° | 0.05" | 0.2" |
| 1971 | 45° | 31° | 38° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP