Weather on August 19
Boston, MA
55 Years of Data
Avg High
78°F
Avg Low
64°F
Warmest
2019
84°F avg
Coldest
1979
62°F avg
About This Date
August 19th in Boston, MA typically brings pleasant summer weather, with average highs around 78°F and lows near 64°F. Over 55 years of records, the warmest August 19th was in 2019 (84°F average), while the coldest was 1979 (62°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 31% of August 19th dates historically, with the wettest August 19th recording 5.61" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for August 19th in Boston, MA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 59° | 65° | — | — |
| 2024 | 75° | 65° | 70° | 0.28" | — |
| 2023 | 74° | 60° | 67° | — | — |
| 2022 | 92° | 69° | 80° | — | — |
| 2021 | 87° | 73° | 80° | 2.9" | — |
| 2020 | 74° | 64° | 69° | 0.15" | — |
| 2019warmest | 95° | 74° | 84° | 0.03" | — |
| 2018 | 73° | 67° | 70° | 0.03" | — |
| 2017 | 74° | 65° | 69° | 0.03" | — |
| 2016 | 81° | 67° | 74° | — | — |
| 2015 | 88° | 71° | 79° | — | — |
| 2014 | 74° | 59° | 66° | — | — |
| 2013 | 84° | 64° | 74° | — | — |
| 2012 | 73° | 61° | 67° | — | — |
| 2011 | 88° | 72° | 80° | 0.08" | — |
| 2010 | 82° | 65° | 73° | — | — |
| 2009 | 91° | 74° | 82° | — | — |
| 2008 | 79° | 60° | 69° | 0.03" | — |
| 2007 | 74° | 57° | 65° | — | — |
| 2006 | 84° | 64° | 74° | — | — |
| 2005 | 73° | 61° | 67° | — | — |
| 2004 | 83° | 68° | 75° | — | — |
| 2003 | 87° | 66° | 77° | — | — |
| 2002 | 84° | 70° | 77° | — | — |
| 2001 | 80° | 66° | 73° | — | — |
| 2000 | 75° | 62° | 69° | 0.13" | — |
| 1999 | 75° | 63° | 69° | — | — |
| 1998 | 69° | 59° | 64° | — | — |
| 1997 | 73° | 60° | 67° | — | — |
| 1996 | 72° | 63° | 67° | — | — |
| 1995 | 73° | 62° | 68° | — | — |
| 1994 | 69° | 64° | 67° | 0.74" | — |
| 1993 | 75° | 64° | 70° | — | — |
| 1992 | 82° | 63° | 72° | 0.03" | — |
| 1991 | 76° | 65° | 70° | 5.61" | — |
| 1990 | 76° | 57° | 66° | 0.86" | — |
| 1989 | 72° | 62° | 67° | — | — |
| 1988 | 73° | 57° | 65° | — | — |
| 1987 | 83° | 67° | 75° | — | — |
| 1986 | 72° | 64° | 68° | 0.05" | — |
| 1985 | 67° | 63° | 65° | 0.43" | — |
| 1984 | 75° | 64° | 70° | — | — |
| 1983 | 92° | 67° | 79° | — | — |
| 1982 | 83° | 60° | 71° | — | — |
| 1981 | 73° | 59° | 66° | — | — |
| 1980 | 70° | 64° | 67° | 0.38" | — |
| 1979coldest | 66° | 58° | 62° | 0.2" | — |
| 1978 | 75° | 65° | 70° | — | — |
| 1977 | 70° | 56° | 63° | — | — |
| 1976 | 73° | 57° | 65° | — | — |
| 1975 | 78° | 62° | 70° | — | — |
| 1974 | 80° | 66° | 73° | — | — |
| 1973 | 72° | 63° | 67° | — | — |
| 1972 | 78° | 68° | 73° | — | — |
| 1971 | 89° | 65° | 77° | — | — |
55 years of data from BOSTON