Weather on May 31
Boston, MA
55 Years of Data
Avg High
75°F
Avg Low
56°F
Warmest
2013
83°F avg
Coldest
2005
53°F avg
About This Date
May 31st in Boston, MA typically brings pleasant spring weather, with average highs around 75°F and lows near 56°F. Over 55 years of records, the warmest May 31st was in 2013 (83°F average), while the coldest was 2005 (53°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 40% of May 31st dates historically, with the wettest May 31st recording 10.46" 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 May 31st in Boston, MA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 52° | 61° | 0.53" | — |
| 2024 | 77° | 54° | 65° | — | — |
| 2023 | 77° | 49° | 63° | — | — |
| 2022 | 83° | 55° | 69° | — | — |
| 2021 | 62° | 51° | 57° | 0.38" | — |
| 2020 | 68° | 50° | 59° | — | — |
| 2019 | 75° | 57° | 66° | 0.18" | — |
| 2018 | 83° | 56° | 69° | — | — |
| 2017 | 68° | 54° | 61° | 0.15" | — |
| 2016 | 87° | 68° | 78° | — | — |
| 2015 | 77° | 48° | 63° | 2.31" | — |
| 2014 | 60° | 52° | 56° | — | — |
| 2013warmest | 94° | 72° | 83° | — | — |
| 2012 | 83° | 63° | 73° | — | — |
| 2011 | 74° | 64° | 69° | — | — |
| 2010 | 74° | 60° | 67° | — | — |
| 2009 | 80° | 51° | 66° | 0.08" | — |
| 2008 | 76° | 62° | 69° | 0.05" | — |
| 2007 | 65° | 57° | 61° | — | — |
| 2006 | 79° | 54° | 66° | — | — |
| 2005coldest | 56° | 50° | 53° | 0.03" | — |
| 2004 | 64° | 49° | 56° | — | — |
| 2003 | 70° | 55° | 62° | 0.41" | — |
| 2002 | 82° | 64° | 73° | 0.58" | — |
| 2001 | 66° | 45° | 55° | — | — |
| 2000 | 72° | 45° | 58° | — | — |
| 1999 | 87° | 62° | 75° | — | — |
| 1998 | 79° | 57° | 68° | 1.75" | — |
| 1997 | 72° | 57° | 64° | — | — |
| 1996 | 76° | 46° | 61° | — | — |
| 1995 | 89° | 58° | 73° | — | — |
| 1994 | 86° | 63° | 74° | — | — |
| 1993 | 62° | 53° | 58° | 0.58" | — |
| 1992 | 65° | 52° | 58° | 0.36" | — |
| 1991 | 66° | 57° | 62° | 0.05" | — |
| 1990 | 75° | 49° | 62° | — | — |
| 1989 | 67° | 56° | 61° | — | — |
| 1988 | 83° | 57° | 70° | — | — |
| 1987 | 92° | 73° | 82° | 0.05" | — |
| 1986 | 80° | 56° | 68° | 0.25" | — |
| 1985 | 76° | 54° | 65° | — | — |
| 1984 | 62° | 53° | 58° | 10.46" | — |
| 1983 | 74° | 61° | 67° | — | — |
| 1982 | 59° | 55° | 57° | 0.1" | — |
| 1981 | 80° | 62° | 71° | 0.03" | — |
| 1980 | 76° | 58° | 67° | — | — |
| 1979 | 80° | 56° | 68° | — | — |
| 1978 | 67° | 57° | 62° | — | — |
| 1977 | 81° | 53° | 67° | — | — |
| 1976 | 74° | 57° | 65° | — | — |
| 1975 | 84° | 63° | 73° | 0.08" | — |
| 1974 | 66° | 52° | 59° | — | — |
| 1973 | 79° | 59° | 69° | 0.28" | — |
| 1972 | 78° | 65° | 71° | 1.4" | — |
| 1971 | 68° | 52° | 60° | — | — |
55 years of data from BOSTON