Weather on October 31
Boston, MA
55 Years of Data
Avg High
59°F
Avg Low
43°F
Warmest
2024
67°F avg
Coldest
2020
35°F avg
About This Date
October 31st in Boston, MA typically brings cool fall weather, with average highs around 59°F and lows near 43°F. Over 55 years of records, the warmest October 31st was in 2024 (67°F average), while the coldest was 2020 (35°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 31% of October 31st dates historically, with the wettest October 31st recording 3.91" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for October 31st in Boston, MA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 60° | 49° | 54° | 0.28" | — |
| 2024warmest | 78° | 56° | 67° | — | — |
| 2023 | 50° | 40° | 45° | — | — |
| 2022 | 68° | 45° | 56° | — | — |
| 2021 | 67° | 53° | 60° | 1.07" | — |
| 2020coldest | 42° | 28° | 35° | — | — |
| 2019 | 72° | 59° | 65° | 0.18" | — |
| 2018 | 58° | 37° | 47° | — | — |
| 2017 | 58° | 46° | 52° | — | — |
| 2016 | 52° | 38° | 45° | — | — |
| 2015 | 52° | 38° | 45° | — | — |
| 2014 | 54° | 45° | 49° | — | — |
| 2013 | 63° | 40° | 51° | 0.08" | — |
| 2012 | 56° | 47° | 51° | 0.05" | — |
| 2011 | 52° | 38° | 45° | — | — |
| 2010 | 58° | 37° | 47° | — | — |
| 2009 | 73° | 46° | 60° | 0.08" | — |
| 2008 | 63° | 33° | 48° | — | — |
| 2007 | 64° | 44° | 54° | — | — |
| 2006 | 65° | 44° | 54° | — | — |
| 2005 | 70° | 45° | 57° | — | — |
| 2004 | 72° | 56° | 64° | — | — |
| 2003 | 65° | 43° | 54° | — | — |
| 2002 | 47° | 32° | 39° | — | — |
| 2001 | 50° | 34° | 42° | 0.15" | — |
| 2000 | 48° | 42° | 45° | 0.58" | — |
| 1999 | 73° | 51° | 62° | — | — |
| 1998 | 61° | 46° | 53° | — | — |
| 1997 | 61° | 37° | 49° | — | — |
| 1996 | 57° | 45° | 51° | — | — |
| 1995 | 50° | 41° | 46° | — | — |
| 1994 | 72° | 51° | 61° | 0.08" | — |
| 1993 | 49° | 38° | 43° | 1.14" | — |
| 1992 | 49° | 35° | 42° | 0.08" | — |
| 1991 | 51° | 48° | 50° | 3.91" | — |
| 1990 | 58° | 44° | 51° | — | — |
| 1989 | 65° | 53° | 59° | 2.29" | — |
| 1988 | 44° | 31° | 37° | — | — |
| 1987 | 59° | 44° | 52° | — | — |
| 1986 | 45° | 34° | 39° | — | — |
| 1985 | 51° | 40° | 45° | — | — |
| 1984 | 64° | 44° | 54° | — | — |
| 1983 | 56° | 34° | 45° | — | — |
| 1982 | 72° | 53° | 62° | — | — |
| 1981 | 54° | 37° | 45° | — | — |
| 1980 | 58° | 35° | 46° | — | — |
| 1979 | 50° | 35° | 43° | — | — |
| 1978 | 63° | 38° | 50° | — | — |
| 1977 | 55° | 41° | 48° | — | — |
| 1976 | 63° | 49° | 56° | 0.15" | — |
| 1975 | 49° | 34° | 41° | — | — |
| 1974 | 71° | 52° | 61° | 0.94" | — |
| 1973 | 62° | 49° | 55° | 1.09" | — |
| 1972 | 45° | 36° | 40° | 0.03" | — |
| 1971 | 56° | 52° | 54° | — | — |
55 years of data from BOSTON