Weather on February 21
Boston, MA
55 Years of Data
Avg High
43°F
Avg Low
28°F
Warmest
2018
56°F avg
Coldest
2015
19°F avg
About This Date
February 21st in Boston, MA typically brings chilly winter weather, with average highs around 43°F and lows near 28°F. Over 56 years of records, the warmest February 21st was in 2018 (56°F average), while the coldest was 2015 (19°F) — a 37°F range across recorded history. Precipitation has occurred on 36% of recorded February 21st dates, with snow falling 16% of the time (heaviest snowfall: 5.9"). The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for February 21st in Boston, MA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 33° | 28° | 31° | 0.13" | 0.8" |
| 2025 | 34° | 22° | 28° | — | — |
| 2024 | 37° | 22° | 30° | — | — |
| 2023 | 46° | 33° | 40° | 0.38" | — |
| 2022 | 53° | 31° | 42° | — | — |
| 2021 | 33° | 19° | 26° | — | — |
| 2020 | 33° | 17° | 25° | — | — |
| 2019 | 48° | 26° | 37° | 1.07" | 1.3" |
| 2018warmest | 72° | 41° | 56° | — | — |
| 2017 | 40° | 30° | 35° | — | — |
| 2016 | 54° | 42° | 48° | — | — |
| 2015coldest | 34° | 4° | 19° | 0.43" | 1.1" |
| 2014 | 44° | 34° | 39° | 0.56" | — |
| 2013 | 33° | 25° | 29° | — | — |
| 2012 | 44° | 28° | 36° | — | — |
| 2011 | 30° | 14° | 22° | 0.2" | 1.3" |
| 2010 | 42° | 32° | 37° | — | — |
| 2009 | 39° | 27° | 33° | — | — |
| 2008 | 31° | 20° | 25° | — | — |
| 2007 | 45° | 34° | 39° | — | — |
| 2006 | 40° | 22° | 31° | — | — |
| 2005 | 34° | 24° | 29° | 0.94" | 5.5" |
| 2004 | 41° | 33° | 37° | 0.03" | — |
| 2003 | 53° | 29° | 41° | — | — |
| 2002 | 56° | 43° | 49° | 0.81" | — |
| 2001 | 42° | 19° | 31° | — | — |
| 2000 | 40° | 28° | 34° | — | — |
| 1999 | 34° | 24° | 29° | — | — |
| 1998 | 45° | 37° | 41° | — | — |
| 1997 | 61° | 33° | 47° | — | — |
| 1996 | 49° | 38° | 43° | 1.88" | — |
| 1995 | 36° | 31° | 33° | 0.05" | 0.1" |
| 1994 | 50° | 45° | 47° | 0.36" | — |
| 1993 | 34° | 14° | 24° | 1.5" | 5.9" |
| 1992 | 48° | 29° | 38° | — | — |
| 1991 | 50° | 33° | 42° | — | — |
| 1990 | 47° | 19° | 33° | — | — |
| 1989 | 61° | 36° | 48° | 2.77" | — |
| 1988 | 44° | 17° | 31° | — | — |
| 1987 | 41° | 24° | 33° | — | — |
| 1986 | 39° | 33° | 36° | 1.7" | — |
| 1985 | 39° | 27° | 33° | — | — |
| 1984 | 45° | 37° | 41° | — | — |
| 1983 | 48° | 27° | 37° | — | — |
| 1982 | 38° | 34° | 36° | 0.05" | — |
| 1981 | 46° | 41° | 44° | 0.53" | — |
| 1980 | 53° | 30° | 42° | — | — |
| 1979 | 50° | 28° | 39° | 0.23" | — |
| 1978 | 33° | 20° | 26° | — | — |
| 1977 | 33° | 21° | 27° | 0.05" | 0.1" |
| 1976 | 50° | 29° | 39° | — | — |
| 1975 | 43° | 35° | 39° | — | — |
| 1974 | 47° | 31° | 39° | — | — |
| 1973 | 50° | 37° | 44° | — | — |
| 1972 | 36° | 6° | 21° | — | — |
| 1971 | 31° | 26° | 28° | 0.18" | 0.5" |
56 years of data from BOSTON