Weather on May 17
Allentown, PA
55 Years of Data
Avg High
73°F
Avg Low
51°F
Warmest
1974
75°F avg
Coldest
1983
49°F avg
About This Date
May 17th in Allentown, PA typically brings pleasant spring weather, with average highs around 73°F and lows near 51°F. Over 55 years of records, the warmest May 17th was in 1974 (75°F average), while the coldest was 1983 (49°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 17th dates historically, with the wettest May 17th recording 1.98" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for May 17th in Allentown, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 61° | 71° | — | — |
| 2024 | 69° | 55° | 62° | — | — |
| 2023 | 62° | 42° | 52° | — | — |
| 2022 | 75° | 48° | 62° | — | — |
| 2021 | 76° | 43° | 59° | — | — |
| 2020 | 70° | 55° | 62° | — | — |
| 2019 | 79° | 51° | 65° | — | — |
| 2018 | 73° | 59° | 66° | 0.48" | — |
| 2017 | 90° | 51° | 70° | — | — |
| 2016 | 63° | 46° | 54° | — | — |
| 2015 | 83° | 62° | 72° | — | — |
| 2014 | 65° | 46° | 55° | — | — |
| 2013 | 73° | 49° | 61° | — | — |
| 2012 | 74° | 49° | 61° | — | — |
| 2011 | 63° | 56° | 59° | 0.81" | — |
| 2010 | 70° | 47° | 58° | 0.03" | — |
| 2009 | 66° | 46° | 56° | — | — |
| 2008 | 69° | 42° | 56° | 0.46" | — |
| 2007 | 69° | 50° | 60° | 1.8" | — |
| 2006 | 68° | 49° | 58° | — | — |
| 2005 | 66° | 41° | 54° | — | — |
| 2004 | 77° | 56° | 66° | — | — |
| 2003 | 62° | 44° | 53° | — | — |
| 2002 | 77° | 50° | 64° | 0.18" | — |
| 2001 | 57° | 49° | 53° | — | — |
| 2000 | 71° | 55° | 63° | — | — |
| 1999 | 73° | 43° | 58° | — | — |
| 1998 | 80° | 59° | 70° | 0.05" | — |
| 1997 | 67° | 39° | 53° | — | — |
| 1996 | 71° | 47° | 59° | — | — |
| 1995 | 70° | 53° | 61° | 0.89" | — |
| 1994 | 60° | 46° | 53° | 0.03" | — |
| 1993 | 70° | 48° | 59° | — | — |
| 1992 | 69° | 53° | 61° | — | — |
| 1991 | 83° | 59° | 71° | 0.79" | — |
| 1990 | 80° | 59° | 70° | 0.03" | — |
| 1989 | 78° | 57° | 68° | 0.56" | — |
| 1988 | 70° | 59° | 64° | 1.88" | — |
| 1987 | 84° | 49° | 66° | — | — |
| 1986 | 85° | 58° | 71° | — | — |
| 1985 | 69° | 59° | 64° | 1.98" | — |
| 1984 | 65° | 38° | 51° | — | — |
| 1983coldest | 62° | 35° | 49° | — | — |
| 1982 | 78° | 62° | 70° | — | — |
| 1981 | 70° | 45° | 57° | — | — |
| 1980 | 75° | 47° | 61° | — | — |
| 1979 | 72° | 46° | 59° | — | — |
| 1978 | 58° | 53° | 55° | 1.37" | — |
| 1977 | 91° | 51° | 71° | — | — |
| 1976 | 76° | 61° | 68° | 0.05" | — |
| 1975 | 73° | 53° | 63° | — | — |
| 1974warmest | 90° | 60° | 75° | 0.86" | — |
| 1973 | 70° | 40° | 55° | 1.45" | — |
| 1972 | 77° | 52° | 64° | 0.58" | — |
| 1971 | 75° | 49° | 62° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP