Weather on August 18
Quincy, MA
55 Years of Data
Avg High
80°F
Avg Low
63°F
Warmest
1987
83°F avg
Coldest
2000
61°F avg
About This Date
August 18th in Quincy, MA typically brings warm summer weather, with average highs around 80°F and lows near 63°F. Over 55 years of records, the warmest August 18th was in 1987 (83°F average), while the coldest was 2000 (61°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 18th dates historically, with the wettest August 18th recording 5.94" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Quincy, MA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 60° | 64° | — | — |
| 2024 | 70° | 63° | 66° | 0.1" | — |
| 2023 | 80° | 66° | 73° | 3.51" | — |
| 2022 | 85° | 64° | 74° | — | — |
| 2021 | 89° | 67° | 78° | — | — |
| 2020 | 86° | 65° | 75° | 0.76" | — |
| 2019 | 86° | 69° | 78° | — | — |
| 2018 | 88° | 73° | 80° | 0.36" | — |
| 2017 | 82° | 63° | 72° | — | — |
| 2016 | 92° | 63° | 77° | — | — |
| 2015 | 93° | 70° | 81° | — | — |
| 2014 | 77° | 56° | 66° | — | — |
| 2013 | 83° | 57° | 70° | — | — |
| 2012 | 77° | 66° | 72° | 0.41" | — |
| 2011 | 86° | 64° | 75° | — | — |
| 2010 | 85° | 61° | 73° | — | — |
| 2009 | 94° | 69° | 81° | — | — |
| 2008 | 87° | 62° | 75° | — | — |
| 2007 | 74° | 55° | 64° | 0.41" | — |
| 2006 | 83° | 61° | 72° | — | — |
| 2005 | 78° | 55° | 67° | — | — |
| 2004 | 81° | 59° | 70° | — | — |
| 2003 | 74° | 60° | 67° | — | — |
| 2002 | 94° | 69° | 81° | — | — |
| 2001 | 83° | 68° | 75° | 0.08" | — |
| 2000coldest | 73° | 49° | 61° | — | — |
| 1999 | 83° | 73° | 78° | — | — |
| 1998 | 85° | 66° | 75° | 0.1" | — |
| 1997 | 75° | 57° | 66° | 1.22" | — |
| 1996 | 82° | 63° | 72° | — | — |
| 1995 | 74° | 63° | 68° | — | — |
| 1994 | 84° | 64° | 74° | 4.37" | — |
| 1993 | 73° | 64° | 69° | 0.84" | — |
| 1992 | 67° | 61° | 64° | 3.63" | — |
| 1991 | 89° | 69° | 79° | — | — |
| 1990 | 88° | 70° | 79° | — | — |
| 1989 | 70° | 60° | 65° | — | — |
| 1988 | 74° | 63° | 68° | 0.46" | — |
| 1987warmest | 92° | 74° | 83° | — | — |
| 1986 | 71° | 66° | 69° | 5.94" | — |
| 1985 | 77° | 59° | 68° | — | — |
| 1984 | 70° | 57° | 63° | — | — |
| 1983 | 75° | 66° | 71° | 0.56" | — |
| 1982 | 70° | 61° | 65° | 0.15" | — |
| 1981 | 79° | 59° | 69° | — | — |
| 1980 | 78° | 53° | 66° | — | — |
| 1979 | 70° | 56° | 63° | 0.33" | — |
| 1978 | 83° | 62° | 72° | — | — |
| 1977 | 73° | 58° | 65° | — | — |
| 1976 | 68° | 58° | 63° | — | — |
| 1975 | 83° | 61° | 72° | — | — |
| 1974 | 77° | 68° | 73° | 2.03" | — |
| 1973 | 82° | 61° | 71° | — | — |
| 1972 | 76° | 62° | 69° | 0.38" | — |
| 1971 | 86° | 57° | 72° | — | — |
55 years of data from HINGHAM