Weather on August 15
Cambridge, MA
55 Years of Data
Avg High
83°F
Avg Low
63°F
Warmest
2002
86°F avg
Coldest
1983
58°F avg
About This Date
August 15th in Cambridge, MA typically brings warm summer weather, with average highs around 83°F and lows near 63°F. Over 55 years of records, the warmest August 15th was in 2002 (86°F average), while the coldest was 1983 (58°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 15th dates historically, with the wettest August 15th recording 2.57" of rain. The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Cambridge, MA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 65° | 79° | 2.31" | — |
| 2024 | 85° | 62° | 73° | — | — |
| 2023 | 89° | 65° | 77° | 1.02" | — |
| 2022 | 86° | 57° | 72° | — | — |
| 2021 | 92° | 66° | 79° | — | — |
| 2020 | 85° | 66° | 75° | — | — |
| 2019 | 82° | 64° | 73° | — | — |
| 2018 | 83° | 70° | 76° | — | — |
| 2017 | 85° | 64° | 74° | — | — |
| 2016 | 98° | 71° | 85° | 0.08" | — |
| 2015 | 88° | 63° | 75° | — | — |
| 2014 | 76° | 56° | 66° | 0.05" | — |
| 2013 | 75° | 56° | 65° | — | — |
| 2012 | 85° | 69° | 77° | — | — |
| 2011 | 75° | 62° | 69° | 0.43" | — |
| 2010 | 83° | 57° | 70° | — | — |
| 2009 | 84° | 61° | 72° | — | — |
| 2008 | 78° | 62° | 70° | — | — |
| 2007 | 86° | 62° | 74° | — | — |
| 2006 | 82° | 70° | 76° | 1.35" | — |
| 2005 | 68° | 62° | 65° | 0.33" | — |
| 2004 | 74° | 64° | 69° | 2.57" | — |
| 2003 | 88° | 69° | 78° | — | — |
| 2002warmest | 100° | 71° | 86° | — | — |
| 2001 | 73° | 57° | 65° | 0.05" | — |
| 2000 | 66° | 63° | 64° | 0.33" | — |
| 1999 | 84° | 62° | 73° | — | — |
| 1998 | 87° | 64° | 76° | 0.05" | — |
| 1997 | 80° | 60° | 70° | — | — |
| 1996 | 86° | 58° | 72° | — | — |
| 1995 | 89° | 66° | 78° | — | — |
| 1994 | 86° | 57° | 72° | 0.03" | — |
| 1993 | 86° | 62° | 74° | — | — |
| 1992 | 69° | 52° | 60° | 0.03" | — |
| 1991 | 89° | 70° | 79° | — | — |
| 1990 | 80° | 60° | 70° | — | — |
| 1989 | 83° | 67° | 75° | 0.13" | — |
| 1988 | 97° | 72° | 84° | — | — |
| 1987 | 88° | 62° | 75° | — | — |
| 1986 | 80° | 66° | 73° | — | — |
| 1985 | 92° | 72° | 82° | — | — |
| 1984 | 78° | 67° | 72° | 0.13" | — |
| 1983coldest | 68° | 48° | 58° | — | — |
| 1982 | 79° | 55° | 67° | — | — |
| 1981 | — | 58° | — | — | — |
| 1980 | 78° | 65° | 71° | 1.52" | — |
| 1979 | 75° | 51° | 63° | — | — |
| 1978 | 91° | 66° | 79° | — | — |
| 1977 | 80° | 63° | 71° | 0.05" | — |
| 1976 | 85° | 67° | 76° | 2.21" | — |
| 1975 | 87° | 62° | 75° | — | — |
| 1974 | 92° | 56° | 74° | — | — |
| 1973 | 74° | 61° | 67° | 0.81" | — |
| 1972 | 69° | 53° | 61° | — | — |
| 1971 | 81° | 63° | 72° | — | — |
55 years of data from CHESTNUT HILL