Weather on May 21
Stamford, CT
55 Years of Data
Avg High
74°F
Avg Low
50°F
Warmest
1996
80°F avg
Coldest
2002
46°F avg
About This Date
May 21st in Stamford, CT typically brings pleasant spring weather, with average highs around 74°F and lows near 50°F. Over 55 years of records, the warmest May 21st was in 1996 (80°F average), while the coldest was 2002 (46°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 44% of May 21st dates historically, with the wettest May 21st recording 3.3" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Stamford, CT? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 47° | 50° | 0.38" | — |
| 2024 | 82° | 54° | 68° | — | — |
| 2023 | 70° | 54° | 62° | 0.03" | — |
| 2022 | 89° | 62° | 76° | — | — |
| 2021 | 76° | 51° | 63° | — | — |
| 2020 | 70° | 36° | 53° | — | — |
| 2019 | 74° | 54° | 64° | — | — |
| 2018 | 77° | 52° | 64° | — | — |
| 2017 | 70° | 44° | 57° | — | — |
| 2016 | 73° | 46° | 60° | — | — |
| 2015 | 66° | 42° | 54° | — | — |
| 2014 | 79° | 53° | 66° | — | — |
| 2013 | 88° | 56° | 72° | — | — |
| 2012 | 63° | 58° | 60° | 3.3" | — |
| 2011 | 74° | 51° | 62° | 0.43" | — |
| 2010 | 81° | 56° | 68° | — | — |
| 2009 | 83° | 56° | 69° | — | — |
| 2008 | 66° | 45° | 55° | — | — |
| 2007 | 69° | 49° | 59° | — | — |
| 2006 | 67° | 46° | 56° | 0.13" | — |
| 2005 | 70° | 40° | 55° | 0.03" | — |
| 2004 | 80° | 57° | 69° | 0.15" | — |
| 2003 | 78° | 47° | 62° | 0.43" | — |
| 2002coldest | 61° | 32° | 46° | — | — |
| 2001 | 64° | 49° | 56° | — | — |
| 2000 | 56° | 43° | 49° | 0.08" | — |
| 1999 | 80° | 45° | 62° | — | — |
| 1998 | 80° | 54° | 67° | 0.05" | — |
| 1997 | 70° | 41° | 55° | 0.05" | — |
| 1996warmest | 94° | 67° | 80° | — | — |
| 1995 | 80° | 45° | 62° | — | — |
| 1994 | 74° | 38° | 56° | — | — |
| 1993 | 69° | 45° | 57° | 0.03" | — |
| 1992 | 89° | 40° | 64° | — | — |
| 1991 | 82° | 39° | 61° | — | — |
| 1990 | 58° | 44° | 51° | 0.58" | — |
| 1989 | 80° | 58° | 69° | 0.23" | — |
| 1988 | 71° | 56° | 63° | 0.03" | — |
| 1987 | 73° | 50° | 62° | — | — |
| 1986 | 70° | 60° | 65° | 0.43" | — |
| 1985 | 80° | 55° | 68° | 0.13" | — |
| 1984 | 80° | 50° | 65° | 0.53" | — |
| 1983 | 68° | 58° | 63° | — | — |
| 1982 | 76° | 55° | 65° | 0.08" | — |
| 1981 | 74° | 39° | 56° | — | — |
| 1980 | 73° | 54° | 63° | 1.45" | — |
| 1979 | 74° | 60° | 67° | — | — |
| 1978 | 85° | 61° | 73° | 0.18" | — |
| 1977 | 78° | 54° | 66° | — | — |
| 1976 | 75° | 43° | 59° | 0.56" | — |
| 1975 | 86° | 59° | 73° | — | — |
| 1974 | 72° | 39° | 55° | — | — |
| 1973 | 59° | 51° | 55° | 0.53" | — |
| 1972 | 76° | 51° | 63° | 0.08" | — |
| 1971 | 65° | 51° | 58° | — | — |
55 years of data from STAMFORD 5 N