Weather on May 1
Allentown, PA
55 Years of Data
Avg High
70°F
Avg Low
45°F
Warmest
1983
69°F avg
Coldest
1978
45°F avg
About This Date
May 1st in Allentown, PA typically brings pleasant spring weather, with average highs around 70°F and lows near 45°F — a 25°F daily swing. Over 55 years of records, the warmest May 1st was in 1983 (69°F average), while the coldest was 1978 (45°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 44% of May 1st dates historically, with the wettest May 1st recording 2.41" of rain. 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 May 1st in Allentown, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 40° | 59° | — | — |
| 2024 | 80° | 55° | 68° | — | — |
| 2023 | 59° | 44° | 52° | 0.28" | — |
| 2022 | 71° | 33° | 52° | 0.03" | — |
| 2021 | 65° | 40° | 52° | — | — |
| 2020 | 68° | 57° | 63° | — | — |
| 2019 | 60° | 52° | 56° | — | — |
| 2018 | 81° | 36° | 58° | — | — |
| 2017 | 82° | 50° | 66° | — | — |
| 2016 | 53° | 44° | 49° | 0.61" | — |
| 2015 | 64° | 43° | 53° | — | — |
| 2014 | 75° | 51° | 63° | 0.56" | — |
| 2013 | 71° | 36° | 53° | — | — |
| 2012 | 76° | 50° | 63° | 0.15" | — |
| 2011 | 70° | 42° | 56° | — | — |
| 2010 | 88° | 48° | 68° | — | — |
| 2009 | 68° | 57° | 63° | 0.69" | — |
| 2008 | 63° | 32° | 47° | — | — |
| 2007 | 69° | 45° | 57° | 1.04" | — |
| 2006 | 72° | 36° | 54° | — | — |
| 2005 | 62° | 39° | 51° | 0.03" | — |
| 2004 | 79° | 54° | 66° | — | — |
| 2003 | 80° | 50° | 65° | — | — |
| 2002 | 65° | 35° | 50° | — | — |
| 2001 | 86° | 44° | 65° | — | — |
| 2000 | 71° | 31° | 51° | — | — |
| 1999 | 70° | 35° | 52° | — | — |
| 1998 | 69° | 54° | 61° | 0.53" | — |
| 1997 | 72° | 49° | 60° | 0.18" | — |
| 1996 | 64° | 34° | 49° | — | — |
| 1995 | 61° | 45° | 53° | 0.38" | — |
| 1994 | 73° | 48° | 61° | 0.91" | — |
| 1993 | 81° | 47° | 64° | — | — |
| 1992 | 67° | 49° | 58° | 0.05" | — |
| 1991 | 81° | 51° | 66° | 0.25" | — |
| 1990 | 73° | 50° | 62° | — | — |
| 1989 | 64° | 51° | 58° | 1.17" | — |
| 1988 | 61° | 42° | 51° | — | — |
| 1987 | 64° | 38° | 51° | — | — |
| 1986 | 82° | 53° | 68° | 0.05" | — |
| 1985 | 82° | 46° | 64° | 0.51" | — |
| 1984 | 64° | 47° | 55° | — | — |
| 1983warmest | 76° | 62° | 69° | 0.13" | — |
| 1982 | 70° | 44° | 57° | — | — |
| 1981 | 65° | 39° | 52° | 0.25" | — |
| 1980 | 72° | 53° | 62° | 0.08" | — |
| 1979 | 63° | 46° | 54° | 0.03" | — |
| 1978coldest | 56° | 35° | 45° | — | — |
| 1977 | 75° | 38° | 56° | — | — |
| 1976 | 59° | 46° | 53° | 2.41" | — |
| 1975 | 52° | 45° | 48° | 0.58" | — |
| 1974 | 72° | 44° | 58° | — | — |
| 1973 | 72° | 42° | 57° | — | — |
| 1972 | 77° | 51° | 64° | 0.2" | — |
| 1971 | 61° | 37° | 49° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP