Weather on March 21
Stamford, CT
55 Years of Data
Avg High
51°F
Avg Low
31°F
Warmest
2012
61°F avg
Coldest
1986
25°F avg
About This Date
March 21st in Stamford, CT typically brings cool spring weather, with average highs around 51°F and lows near 31°F. Over 56 years of records, the warmest March 21st was in 2012 (61°F average), while the coldest was 1986 (25°F) — a 36°F range across recorded history. Precipitation has occurred on 45% of recorded March 21st dates, with snow falling 9% of the time (heaviest snowfall: 3.1"). 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 March 21st in Stamford, CT? 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 | 57° | 41° | 49° | — | — |
| 2025 | 50° | 34° | 42° | 0.23" | — |
| 2024 | 39° | 27° | 33° | — | — |
| 2023 | 62° | 34° | 48° | — | — |
| 2022 | 60° | 41° | 51° | — | — |
| 2021 | 59° | 29° | 44° | — | — |
| 2020 | 71° | 39° | 55° | — | — |
| 2019 | 48° | 37° | 43° | — | — |
| 2018 | 37° | 30° | 34° | 0.43" | — |
| 2017 | 57° | 35° | 46° | — | — |
| 2016 | 49° | 30° | 39° | 0.46" | 2" |
| 2015 | 47° | 26° | 36° | 0.74" | 3.1" |
| 2014 | 49° | 34° | 41° | — | — |
| 2013 | 42° | 29° | 35° | — | — |
| 2012warmest | 67° | 55° | 61° | 0.03" | — |
| 2011 | 40° | 32° | 36° | 0.94" | — |
| 2010 | 68° | 38° | 53° | — | — |
| 2009 | 45° | 23° | 34° | — | — |
| 2008 | 42° | 31° | 37° | — | — |
| 2007 | 44° | 19° | 32° | — | — |
| 2006 | 43° | 22° | 33° | — | — |
| 2005 | 45° | 35° | 40° | 0.03" | — |
| 2004 | 49° | 35° | 42° | 0.81" | — |
| 2003 | 63° | 47° | 55° | 0.51" | — |
| 2002 | 55° | 31° | 43° | 0.08" | — |
| 2001 | 49° | 36° | 42° | 0.71" | — |
| 2000 | 45° | 37° | 41° | — | — |
| 1999 | 50° | 24° | 37° | 0.08" | — |
| 1998 | 44° | 33° | 39° | 0.66" | 0.2" |
| 1997 | 49° | 24° | 36° | — | — |
| 1996 | 48° | 35° | 42° | 0.13" | — |
| 1995 | 60° | 43° | 51° | 0.56" | — |
| 1994 | 48° | 24° | 36° | — | — |
| 1993 | 47° | 32° | 39° | 0.64" | 0.8" |
| 1992 | 40° | 17° | 28° | — | — |
| 1991 | 50° | 28° | 39° | — | — |
| 1990 | 54° | 37° | 45° | 0.1" | — |
| 1989 | 48° | 33° | 41° | 0.74" | 1" |
| 1988 | 37° | 16° | 26° | — | — |
| 1987 | 47° | 28° | 37° | — | — |
| 1986coldest | 37° | 13° | 25° | — | — |
| 1985 | 50° | 25° | 37° | — | — |
| 1984 | 49° | 37° | 43° | 1.7" | — |
| 1983 | 57° | 36° | 46° | 2.03" | — |
| 1982 | 51° | 40° | 45° | 0.41" | — |
| 1981 | 44° | 18° | 31° | — | — |
| 1980 | 52° | 41° | 46° | 4.65" | — |
| 1979 | 67° | 33° | 50° | — | — |
| 1978 | 61° | 31° | 46° | — | — |
| 1977 | 53° | 31° | 42° | — | — |
| 1976 | 62° | 39° | 51° | 0.3" | — |
| 1975 | 59° | 30° | 45° | 0.05" | — |
| 1974 | 54° | 26° | 40° | 5.21" | — |
| 1973 | 44° | 22° | 33° | — | — |
| 1972 | 54° | 22° | 38° | — | — |
| 1971 | 46° | 18° | 32° | — | — |
56 years of data from STAMFORD 5 N