Weather on August 31
Cambridge, MA
55 Years of Data
Avg High
80°F
Avg Low
59°F
Warmest
2022
82°F avg
Coldest
1976
54°F avg
About This Date
August 31st in Cambridge, MA typically brings warm summer weather, with average highs around 80°F and lows near 59°F. Over 55 years of records, the warmest August 31st was in 2022 (82°F average), while the coldest was 1976 (54°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 31st dates historically, with the wettest August 31st recording 7.62" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Cambridge, MA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 54° | 65° | — | — |
| 2024 | 75° | 57° | 66° | — | — |
| 2023 | 79° | 61° | 70° | 0.53" | — |
| 2022warmest | 93° | 71° | 82° | 0.56" | — |
| 2021 | 85° | 68° | 76° | — | — |
| 2020 | 79° | 51° | 65° | — | — |
| 2019 | 86° | 60° | 73° | — | — |
| 2018 | 90° | 66° | 78° | — | — |
| 2017 | 74° | 54° | 64° | — | — |
| 2016 | 86° | 65° | 75° | — | — |
| 2015 | 89° | 68° | 79° | — | — |
| 2014 | 79° | 62° | 70° | — | — |
| 2013 | 82° | 62° | 72° | — | — |
| 2012 | 82° | 58° | 70° | — | — |
| 2011 | 80° | 56° | 68° | 0.03" | — |
| 2010 | 90° | 69° | 79° | — | — |
| 2009 | 75° | 57° | 66° | — | — |
| 2008 | 78° | 65° | 71° | — | — |
| 2007 | 75° | 64° | 70° | 0.03" | — |
| 2006 | 74° | 55° | 64° | — | — |
| 2005 | 83° | 72° | 77° | 0.08" | — |
| 2004 | 82° | 66° | 74° | 0.43" | — |
| 2003 | 67° | 55° | 61° | — | — |
| 2002 | 71° | 56° | 63° | — | — |
| 2001 | 77° | 63° | 70° | — | — |
| 2000 | 80° | 57° | 69° | — | — |
| 1999 | 77° | 55° | 66° | — | — |
| 1998 | 89° | 63° | 76° | — | — |
| 1997 | 83° | 58° | 70° | — | — |
| 1996 | 83° | 56° | 69° | — | — |
| 1995 | 81° | 50° | 65° | — | — |
| 1994 | 77° | 54° | 65° | — | — |
| 1993 | 81° | 66° | 73° | — | — |
| 1992 | 79° | 60° | 69° | — | — |
| 1991 | 90° | 69° | 79° | — | — |
| 1990 | 83° | 54° | 68° | — | — |
| 1989 | 85° | 58° | 71° | 0.03" | — |
| 1988 | 71° | 51° | 61° | — | — |
| 1987 | 82° | 52° | 67° | — | — |
| 1986 | 77° | — | — | — | — |
| 1985 | 60° | 58° | 59° | 3.3" | — |
| 1984 | 63° | 54° | 58° | — | — |
| 1983 | 87° | 48° | 68° | 7.62" | — |
| 1982 | 75° | 55° | 65° | — | — |
| 1981 | 80° | 55° | 68° | — | — |
| 1980 | 77° | 61° | 69° | — | — |
| 1979 | 87° | 64° | 76° | 0.58" | — |
| 1978 | 80° | 64° | 72° | — | — |
| 1977 | 85° | 65° | 75° | 0.23" | — |
| 1976coldest | 64° | 45° | 54° | — | — |
| 1975 | 66° | 53° | 60° | 0.38" | — |
| 1974 | 70° | 56° | 63° | 0.15" | — |
| 1973 | 96° | 64° | 80° | 0.41" | — |
| 1972 | 82° | 52° | 67° | — | — |
| 1971 | 86° | 60° | 73° | — | — |
55 years of data from CHESTNUT HILL