Weather on May 12
Allentown, PA
55 Years of Data
Avg High
71°F
Avg Low
48°F
Warmest
1985
76°F avg
Coldest
2010
47°F avg
About This Date
May 12th in Allentown, PA typically brings pleasant spring weather, with average highs around 71°F and lows near 48°F. Over 55 years of records, the warmest May 12th was in 1985 (76°F average), while the coldest was 2010 (47°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 45% of May 12th dates historically, with the wettest May 12th recording 3.71" of rain. The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
Planning for May 12th in Allentown, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 44° | 62° | — | — |
| 2024 | 52° | 45° | 48° | 0.66" | — |
| 2023 | 85° | 50° | 67° | — | — |
| 2022 | 78° | 49° | 63° | — | — |
| 2021 | 67° | 38° | 52° | — | — |
| 2020 | 63° | 41° | 52° | — | — |
| 2019 | 57° | 45° | 51° | 3.71" | — |
| 2018 | 61° | 51° | 56° | 1.63" | — |
| 2017 | 63° | 45° | 54° | 0.05" | — |
| 2016 | 80° | 47° | 63° | — | — |
| 2015 | 85° | 62° | 73° | — | — |
| 2014 | 84° | 51° | 68° | — | — |
| 2013 | 63° | 40° | 51° | — | — |
| 2012 | 80° | 41° | 61° | — | — |
| 2011 | 78° | 49° | 63° | — | — |
| 2010coldest | 50° | 44° | 47° | 1.35" | — |
| 2009 | 67° | 38° | 52° | — | — |
| 2008 | 54° | 44° | 49° | 0.86" | — |
| 2007 | 76° | 56° | 66° | 0.13" | — |
| 2006 | 72° | 54° | 63° | 0.2" | — |
| 2005 | 69° | 45° | 57° | — | — |
| 2004 | 87° | 61° | 74° | — | — |
| 2003 | 62° | 51° | 57° | — | — |
| 2002 | 62° | 51° | 57° | 1.17" | — |
| 2001 | 81° | 54° | 67° | — | — |
| 2000 | 73° | 56° | 64° | 0.23" | — |
| 1999 | 78° | 46° | 62° | — | — |
| 1998 | 66° | 50° | 58° | 0.03" | — |
| 1997 | 77° | 49° | 63° | — | — |
| 1996 | 55° | 43° | 49° | — | — |
| 1995 | 69° | 53° | 61° | 0.05" | — |
| 1994 | 67° | 47° | 57° | 0.46" | — |
| 1993 | 86° | 61° | 73° | 0.03" | — |
| 1992 | 76° | 44° | 60° | — | — |
| 1991 | 87° | 52° | 69° | — | — |
| 1990 | 62° | 35° | 49° | — | — |
| 1989 | 58° | 47° | 52° | 0.03" | — |
| 1988 | 73° | 39° | 56° | — | — |
| 1987 | 81° | 52° | 66° | — | — |
| 1986 | 76° | 40° | 58° | — | — |
| 1985warmest | 85° | 67° | 76° | 0.36" | — |
| 1984 | 74° | 53° | 63° | 0.13" | — |
| 1983 | 66° | 39° | 53° | — | — |
| 1982 | 81° | 47° | 64° | 0.23" | — |
| 1981 | 62° | 48° | 55° | 0.3" | — |
| 1980 | 75° | 52° | 63° | 3.2" | — |
| 1979 | 67° | 59° | 63° | 0.1" | — |
| 1978 | 77° | 50° | 64° | — | — |
| 1977 | 77° | 41° | 59° | — | — |
| 1976 | 60° | 43° | 51° | — | — |
| 1975 | 77° | 54° | 65° | 0.84" | — |
| 1974 | 68° | 50° | 59° | 3.63" | — |
| 1973 | 64° | 47° | 55° | 0.36" | — |
| 1972 | 74° | 42° | 58° | — | — |
| 1971 | 73° | 52° | 62° | 0.03" | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP