Weather on August 20
Quincy, MA
55 Years of Data
Avg High
78°F
Avg Low
59°F
Warmest
1983
81°F avg
Coldest
2007
58°F avg
About This Date
August 20th in Quincy, MA typically brings pleasant summer weather, with average highs around 78°F and lows near 59°F. Over 55 years of records, the warmest August 20th was in 1983 (81°F average), while the coldest was 2007 (58°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 20th dates historically, with the wettest August 20th recording 3.1" of rain. The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
Planning for August 20th in Quincy, MA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 54° | 59° | — | — |
| 2024 | 75° | 59° | 67° | 0.2" | — |
| 2023 | 83° | 61° | 72° | — | — |
| 2022 | 98° | 65° | 81° | — | — |
| 2021 | 78° | 70° | 74° | 0.03" | — |
| 2020 | 83° | 53° | 68° | — | — |
| 2019 | 86° | 66° | 76° | — | — |
| 2018 | 74° | 65° | 69° | — | — |
| 2017 | 86° | 66° | 76° | — | — |
| 2016 | 88° | 65° | 76° | — | — |
| 2015 | 84° | 71° | 78° | — | — |
| 2014 | 79° | 53° | 66° | — | — |
| 2013 | 87° | 62° | 75° | — | — |
| 2012 | 77° | 57° | 67° | — | — |
| 2011 | 85° | 70° | 77° | — | — |
| 2010 | 84° | 65° | 74° | 0.03" | — |
| 2009 | 82° | 69° | 76° | 0.1" | — |
| 2008 | 74° | 53° | 63° | — | — |
| 2007coldest | 69° | 46° | 58° | — | — |
| 2006 | 83° | 66° | 74° | 2.01" | — |
| 2005 | 79° | 62° | 70° | — | — |
| 2004 | 89° | 69° | 79° | — | — |
| 2003 | 88° | 64° | 76° | — | — |
| 2002 | 75° | 63° | 69° | 2.08" | — |
| 2001 | 76° | 68° | 72° | 0.97" | — |
| 2000 | 70° | 53° | 61° | — | — |
| 1999 | 74° | 50° | 62° | — | — |
| 1998 | 73° | 49° | 61° | — | — |
| 1997 | 73° | 52° | 62° | — | — |
| 1996 | 80° | 51° | 66° | — | — |
| 1995 | 74° | 49° | 61° | — | — |
| 1994 | 81° | 64° | 72° | — | — |
| 1993 | 83° | 57° | 70° | 3.1" | — |
| 1992 | 72° | 55° | 63° | — | — |
| 1991 | 69° | 58° | 63° | 0.79" | — |
| 1990 | 66° | 51° | 59° | — | — |
| 1989 | 81° | 66° | 73° | — | — |
| 1988 | 75° | 52° | 63° | — | — |
| 1987 | 85° | 62° | 73° | 0.08" | — |
| 1986 | 70° | 60° | 65° | — | — |
| 1985 | 79° | 61° | 70° | — | — |
| 1984 | 71° | 62° | 67° | — | — |
| 1983warmest | 92° | 70° | 81° | — | — |
| 1982 | 80° | 67° | 73° | 0.03" | — |
| 1981 | 73° | 45° | 59° | — | — |
| 1980 | 68° | 60° | 64° | 0.28" | — |
| 1979 | 71° | 61° | 66° | — | — |
| 1978 | 81° | 61° | 71° | — | — |
| 1977 | 77° | 50° | 64° | — | — |
| 1976 | 85° | 47° | 66° | — | — |
| 1975 | 77° | 50° | 64° | — | — |
| 1974 | 78° | 58° | 68° | — | — |
| 1973 | 72° | 57° | 64° | 0.51" | — |
| 1972 | 72° | 56° | 64° | — | — |
| 1971 | 87° | 68° | 78° | 1.7" | — |
55 years of data from HINGHAM