Weather on May 15
Cambridge, MA
55 Years of Data
Avg High
69°F
Avg Low
47°F
Warmest
2022
77°F avg
Coldest
2017
47°F avg
About This Date
May 15th in Cambridge, MA typically brings mild spring weather, with average highs around 69°F and lows near 47°F. Over 55 years of records, the warmest May 15th was in 2022 (77°F average), while the coldest was 2017 (47°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 15th dates historically, with the wettest May 15th recording 2.79" of rain. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Cambridge, MA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 58° | 64° | 1.09" | — |
| 2024 | 81° | 51° | 66° | — | — |
| 2023 | 67° | 48° | 57° | — | — |
| 2022warmest | 90° | 64° | 77° | 0.05" | — |
| 2021 | 78° | 54° | 66° | — | — |
| 2020 | 72° | 52° | 62° | 0.15" | — |
| 2019 | 51° | 42° | 47° | 0.2" | — |
| 2018 | 75° | 52° | 63° | — | — |
| 2017coldest | 49° | 46° | 47° | 0.91" | — |
| 2016 | 82° | 49° | 65° | — | — |
| 2015 | 72° | 42° | 57° | — | — |
| 2014 | 66° | 51° | 59° | — | — |
| 2013 | 59° | 39° | 49° | — | — |
| 2012 | 68° | 54° | 61° | 0.3" | — |
| 2011 | 58° | 46° | 52° | 1.02" | — |
| 2010 | 71° | 50° | 61° | 0.38" | — |
| 2009 | 65° | 56° | 60° | — | — |
| 2008 | 64° | 48° | 56° | — | — |
| 2007 | 82° | 54° | 68° | 0.23" | — |
| 2006 | 50° | 47° | 48° | 0.91" | — |
| 2005 | 55° | 45° | 50° | 0.03" | — |
| 2004 | 89° | 61° | 75° | — | — |
| 2003 | 60° | 45° | 52° | — | — |
| 2002 | 65° | 40° | 52° | 0.03" | — |
| 2001 | 70° | 49° | 59° | — | — |
| 2000 | 78° | 45° | 61° | — | — |
| 1999 | 81° | 42° | 61° | — | — |
| 1998 | 60° | 40° | 50° | — | — |
| 1997 | 62° | 48° | 55° | 0.18" | — |
| 1996 | 67° | 36° | 51° | — | — |
| 1995 | 66° | 46° | 56° | 0.53" | — |
| 1994 | 72° | 42° | 57° | — | — |
| 1993 | 64° | 40° | 52° | — | — |
| 1992 | 76° | 50° | 63° | — | — |
| 1991 | 77° | 42° | 60° | — | — |
| 1990 | 77° | 50° | 64° | 0.03" | — |
| 1989 | 79° | 49° | 64° | — | — |
| 1988 | 66° | 40° | 53° | — | — |
| 1987 | 76° | 55° | 65° | — | — |
| 1986 | 70° | 37° | 53° | — | — |
| 1985 | 76° | 33° | 54° | — | — |
| 1984 | 61° | 38° | 49° | — | — |
| 1983 | 63° | 46° | 54° | — | — |
| 1982 | 65° | 49° | 57° | — | — |
| 1981 | 76° | 52° | 64° | — | — |
| 1980 | 68° | 48° | 58° | 0.1" | — |
| 1979 | 66° | 58° | 62° | 0.74" | — |
| 1978 | 63° | 45° | 54° | 2.24" | — |
| 1977 | 63° | 38° | 50° | — | — |
| 1976 | — | 58° | — | — | — |
| 1975 | 72° | 46° | 59° | — | — |
| 1974 | 74° | 52° | 63° | — | — |
| 1973 | 69° | 48° | 59° | — | — |
| 1972 | 74° | 54° | 64° | 2.79" | — |
| 1971 | 68° | 38° | 53° | — | — |
55 years of data from CHESTNUT HILL