Weather on October 18
Allentown, PA
55 Years of Data
Avg High
63°F
Avg Low
41°F
Warmest
2016
68°F avg
Coldest
1972
37°F avg
About This Date
October 18th in Allentown, PA typically brings mild fall weather, with average highs around 63°F and lows near 41°F. Over 55 years of records, the warmest October 18th was in 2016 (68°F average), while the coldest was 1972 (37°F) — a 31°F range across recorded history. Precipitation has occurred on 31% of recorded October 18th dates, with snow falling 2% 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 October 18th in Allentown, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 39° | 54° | — | — |
| 2024 | 72° | 33° | 52° | — | — |
| 2023 | 65° | 43° | 54° | — | — |
| 2022 | 54° | 34° | 44° | — | — |
| 2021 | 58° | 44° | 51° | — | — |
| 2020 | 64° | 31° | 48° | — | — |
| 2019 | 60° | 40° | 50° | — | — |
| 2018 | 52° | 35° | 43° | — | — |
| 2017 | 73° | 38° | 55° | — | — |
| 2016warmest | 85° | 52° | 68° | — | — |
| 2015 | 50° | 30° | 40° | — | — |
| 2014 | 69° | 49° | 59° | — | — |
| 2013 | 65° | 42° | 53° | — | — |
| 2012 | 69° | 41° | 55° | 0.03" | — |
| 2011 | 71° | 41° | 56° | 0.03" | — |
| 2010 | 57° | 40° | 48° | 0.03" | — |
| 2009 | 52° | 35° | 43° | 0.08" | — |
| 2008 | 57° | 36° | 46° | — | — |
| 2007 | 77° | 53° | 65° | — | — |
| 2006 | 71° | 56° | 63° | — | — |
| 2005 | 71° | 48° | 60° | 0.08" | — |
| 2004 | 57° | 35° | 46° | 0.43" | — |
| 2003 | 58° | 39° | 48° | — | — |
| 2002 | 57° | 37° | 47° | — | — |
| 2001 | 57° | 31° | 44° | — | — |
| 2000 | 61° | 51° | 56° | 1.55" | — |
| 1999 | 59° | 39° | 49° | — | — |
| 1998 | 76° | 44° | 60° | — | — |
| 1997 | 62° | 44° | 53° | 0.66" | — |
| 1996 | 58° | 51° | 54° | 0.18" | — |
| 1995 | 66° | 32° | 49° | — | — |
| 1994 | 72° | 40° | 56° | — | — |
| 1993 | 70° | 50° | 60° | — | — |
| 1992 | 51° | 31° | 41° | 0.05" | — |
| 1991 | 70° | 47° | 58° | — | — |
| 1990 | 73° | 46° | 60° | 2.06" | — |
| 1989 | 53° | 46° | 50° | 0.46" | — |
| 1988 | 66° | 51° | 59° | — | — |
| 1987 | 67° | 43° | 55° | — | — |
| 1986 | 57° | 40° | 48° | — | — |
| 1985 | 62° | 35° | 49° | — | — |
| 1984 | 71° | 60° | 66° | — | — |
| 1983 | 61° | 47° | 54° | 1.47" | — |
| 1982 | 56° | 30° | 43° | — | — |
| 1981 | 55° | 35° | 45° | 0.91" | — |
| 1980 | 75° | 58° | 66° | 0.94" | — |
| 1979 | 69° | 46° | 58° | — | — |
| 1978 | 57° | 29° | 43° | — | — |
| 1977 | 60° | 35° | 48° | — | — |
| 1976 | 49° | 31° | 40° | — | — |
| 1975 | 61° | 52° | 56° | 3.86" | — |
| 1974 | 50° | 28° | 39° | — | — |
| 1973 | 52° | 37° | 44° | — | — |
| 1972coldest | 45° | 30° | 37° | 0.46" | 0.2" |
| 1971 | 63° | 42° | 52° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP