Weather on March 21
Brockton, MA
55 Years of Data
Avg High
49°F
Avg Low
29°F
Warmest
2012
63°F avg
Coldest
1988
21°F avg
About This Date
March 21st in Brockton, MA typically brings chilly spring weather, with average highs around 49°F and lows near 29°F. Over 56 years of records, the warmest March 21st was in 2012 (63°F average), while the coldest was 1988 (21°F) — a 42°F range across recorded history. Precipitation has occurred on 52% of recorded March 21st dates, with snow falling 5% of the time (heaviest snowfall: 3"). The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Brockton, MA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 58° | 42° | 50° | — | — |
| 2025 | 51° | 39° | 45° | 1.02" | — |
| 2024 | 42° | 30° | 36° | — | — |
| 2023 | 63° | 29° | 46° | — | — |
| 2022 | 62° | 45° | 53° | — | — |
| 2021 | 68° | 28° | 48° | — | — |
| 2020 | 64° | 30° | 47° | — | — |
| 2019 | 50° | 27° | 38° | 0.13" | — |
| 2018 | 38° | 31° | 34° | 0.08" | — |
| 2017 | 56° | 29° | 42° | — | — |
| 2016 | 45° | 29° | 37° | 0.48" | 3" |
| 2015 | 43° | 28° | 35° | 0.13" | 0.5" |
| 2014 | 44° | 32° | 38° | — | — |
| 2013 | 39° | 25° | 32° | 0.15" | 2.5" |
| 2012warmest | 79° | 48° | 63° | — | — |
| 2011 | 41° | 31° | 36° | 0.43" | — |
| 2010 | 55° | 41° | 48° | — | — |
| 2009 | 45° | 21° | 33° | — | — |
| 2008 | 40° | 30° | 35° | — | — |
| 2007 | 40° | 19° | 29° | — | — |
| 2006 | 47° | 22° | 34° | — | — |
| 2005 | 42° | 27° | 34° | — | — |
| 2004 | 45° | 6° | 25° | 0.71" | — |
| 2003 | 50° | 19° | 35° | 2.03" | — |
| 2002 | 56° | 30° | 43° | — | — |
| 2001 | 48° | 29° | 38° | 2.49" | — |
| 2000 | 41° | 36° | 38° | 0.03" | — |
| 1999 | 52° | 24° | 38° | 0.25" | — |
| 1998 | 35° | 28° | 32° | 1.32" | — |
| 1997 | 49° | 25° | 37° | 0.03" | — |
| 1996 | 58° | 28° | 43° | — | — |
| 1995 | 69° | 40° | 54° | 0.15" | — |
| 1994 | 50° | 26° | 38° | 0.23" | — |
| 1993 | 42° | 29° | 35° | — | — |
| 1992 | 37° | 22° | 29° | — | — |
| 1991 | 52° | 30° | 41° | — | — |
| 1990 | 50° | 32° | 41° | 0.18" | — |
| 1989 | 48° | 33° | 41° | 0.1" | — |
| 1988coldest | 28° | 14° | 21° | — | — |
| 1987 | 42° | 33° | 38° | 0.64" | — |
| 1986 | 34° | 11° | 22° | — | — |
| 1985 | 44° | 26° | 35° | — | — |
| 1984 | 46° | 38° | 42° | 1.17" | — |
| 1983 | 57° | 39° | 48° | 4.19" | — |
| 1982 | 46° | 35° | 41° | 0.1" | — |
| 1981 | 40° | 29° | 34° | 0.08" | — |
| 1980 | 49° | 34° | 41° | 3.23" | — |
| 1979 | 53° | 34° | 43° | 0.23" | — |
| 1978 | 56° | 30° | 43° | 0.03" | — |
| 1977 | 55° | 26° | 41° | — | — |
| 1976 | 60° | 39° | 50° | 0.25" | — |
| 1975 | 52° | 24° | 38° | — | — |
| 1974 | 59° | 24° | 42° | 4.9" | — |
| 1973 | 38° | 28° | 33° | — | — |
| 1972 | 46° | 24° | 35° | 0.08" | — |
| 1971 | 43° | 32° | 37° | — | — |
56 years of data from BROCKTON