Weather on June 20
Allentown, PA
55 Years of Data
Avg High
82°F
Avg Low
61°F
Warmest
2012
81°F avg
Coldest
2004
62°F avg
About This Date
June 20th in Allentown, PA typically brings warm summer weather, with average highs around 82°F and lows near 61°F. Over 55 years of records, the warmest June 20th was in 2012 (81°F average), while the coldest was 2004 (62°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 31% of June 20th dates historically, with the wettest June 20th recording 6.76" of rain. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for June 20th in Allentown, PA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 63° | 73° | — | — |
| 2024 | 91° | 65° | 78° | — | — |
| 2023 | 80° | 62° | 71° | — | — |
| 2022 | 78° | 46° | 62° | — | — |
| 2021 | 87° | 60° | 74° | — | — |
| 2020 | 86° | 61° | 73° | — | — |
| 2019 | 82° | 69° | 76° | 0.81" | — |
| 2018 | 87° | 61° | 74° | 0.05" | — |
| 2017 | 83° | 64° | 73° | — | — |
| 2016 | 91° | 62° | 77° | — | — |
| 2015 | 71° | 62° | 67° | 1.09" | — |
| 2014 | 80° | 51° | 66° | — | — |
| 2013 | 81° | 52° | 66° | — | — |
| 2012warmest | 95° | 66° | 81° | — | — |
| 2011 | 82° | 63° | 72° | — | — |
| 2010 | 90° | 70° | 80° | — | — |
| 2009 | 71° | 56° | 63° | 2.18" | — |
| 2008 | 80° | 50° | 65° | — | — |
| 2007 | 79° | 63° | 71° | 0.79" | — |
| 2006 | 83° | 62° | 72° | — | — |
| 2005 | 79° | 55° | 67° | — | — |
| 2004coldest | 72° | 53° | 62° | — | — |
| 2003 | 67° | 61° | 64° | 6.76" | — |
| 2002 | 82° | 54° | 68° | — | — |
| 2001 | 89° | 62° | 76° | 0.05" | — |
| 2000 | 83° | 51° | 67° | — | — |
| 1999 | 75° | 55° | 65° | — | — |
| 1998 | 87° | 63° | 75° | — | — |
| 1997 | 87° | 57° | 72° | — | — |
| 1996 | 74° | 60° | 67° | 0.1" | — |
| 1995 | 90° | 70° | 80° | — | — |
| 1994 | 89° | 68° | 79° | — | — |
| 1993 | 88° | 68° | 78° | 2.64" | — |
| 1992 | 75° | 60° | 68° | 0.89" | — |
| 1991 | 91° | 62° | 77° | — | — |
| 1990 | 80° | 58° | 69° | — | — |
| 1989 | 81° | 61° | 71° | — | — |
| 1988 | 90° | 69° | 79° | 0.51" | — |
| 1987 | 94° | 66° | 80° | — | — |
| 1986 | 80° | 60° | 70° | — | — |
| 1985 | 75° | 57° | 66° | — | — |
| 1984 | 83° | 61° | 72° | — | — |
| 1983 | 73° | 66° | 70° | 3.25" | — |
| 1982 | 73° | 57° | 65° | — | — |
| 1981 | 79° | 67° | 73° | 0.84" | — |
| 1980 | 67° | 59° | 63° | 0.61" | — |
| 1979 | 82° | 53° | 68° | — | — |
| 1978 | 88° | 59° | 73° | — | — |
| 1977 | 86° | 60° | 73° | 0.66" | — |
| 1976 | 86° | 71° | 79° | 0.48" | — |
| 1975 | 84° | 64° | 74° | — | — |
| 1974 | 83° | 66° | 74° | — | — |
| 1973 | 82° | 65° | 73° | 0.13" | — |
| 1972 | 80° | 68° | 74° | — | — |
| 1971 | 83° | 61° | 72° | — | — |
55 years of data from ALLENTOWN LEHIGH VLY INTL AP