Weather on April 21
Stamford, CT
55 Years of Data
Avg High
65°F
Avg Low
41°F
Warmest
1987
67°F avg
Coldest
1981
40°F avg
About This Date
April 21st in Stamford, CT typically brings mild spring weather, with average highs around 65°F and lows near 41°F. Over 55 years of records, the warmest April 21st was in 1987 (67°F average), while the coldest was 1981 (40°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 35% of April 21st dates historically, with the wettest April 21st recording 4.14" of rain. The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Stamford, CT? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 56° | 41° | 48° | — | — |
| 2024 | 50° | 34° | 42° | — | — |
| 2023 | 66° | 45° | 55° | — | — |
| 2022 | 56° | 45° | 50° | — | — |
| 2021 | 62° | 36° | 49° | — | — |
| 2020 | 52° | 37° | 44° | — | — |
| 2019 | 62° | 51° | 57° | — | — |
| 2018 | 59° | 33° | 46° | — | — |
| 2017 | 62° | 47° | 54° | — | — |
| 2016 | 70° | 36° | 53° | — | — |
| 2015 | 64° | 51° | 58° | 1.12" | — |
| 2014 | 68° | 28° | 48° | — | — |
| 2013 | 59° | 30° | 45° | — | — |
| 2012 | 72° | 51° | 61° | 0.36" | — |
| 2011 | 55° | 36° | 45° | — | — |
| 2010 | 68° | 35° | 52° | — | — |
| 2009 | 54° | 47° | 50° | 0.1" | — |
| 2008 | 64° | 47° | 55° | — | — |
| 2007 | 80° | 34° | 57° | — | — |
| 2006 | 59° | 44° | 52° | — | — |
| 2005 | 85° | 48° | 66° | 0.05" | — |
| 2004 | 72° | 47° | 59° | 0.08" | — |
| 2003 | 65° | 34° | 49° | — | — |
| 2002 | 61° | 42° | 51° | 0.08" | — |
| 2001 | 68° | 48° | 58° | 0.1" | — |
| 2000 | 62° | 44° | 53° | 2.92" | — |
| 1999 | 64° | 33° | 49° | — | — |
| 1998 | 69° | 36° | 52° | — | — |
| 1997 | 60° | 33° | 47° | — | — |
| 1996 | 81° | 50° | 65° | — | — |
| 1995 | 66° | 51° | 59° | 0.64" | — |
| 1994 | 60° | 35° | 48° | — | — |
| 1993 | 70° | 52° | 61° | — | — |
| 1992 | 72° | 50° | 61° | 0.05" | — |
| 1991 | 57° | 31° | 44° | 4.14" | — |
| 1990 | 60° | 50° | 55° | 1.14" | — |
| 1989 | 69° | 36° | 52° | — | — |
| 1988 | 58° | 35° | 46° | — | — |
| 1987warmest | 77° | 57° | 67° | 0.05" | — |
| 1986 | 59° | 46° | 53° | 1.4" | — |
| 1985 | 80° | 44° | 62° | — | — |
| 1984 | 58° | 44° | 51° | — | — |
| 1983 | 58° | 37° | 47° | 0.05" | — |
| 1982 | 65° | 50° | 57° | 0.05" | — |
| 1981coldest | 52° | 29° | 40° | — | — |
| 1980 | 74° | 47° | 60° | 0.13" | — |
| 1979 | 65° | 32° | 48° | — | — |
| 1978 | 56° | 43° | 49° | 0.05" | — |
| 1977 | 76° | 40° | 58° | — | — |
| 1976 | 78° | 54° | 66° | — | — |
| 1975 | 58° | 32° | 45° | — | — |
| 1974 | 72° | 30° | 51° | — | — |
| 1973 | 64° | 36° | 50° | — | — |
| 1972 | 59° | 33° | 46° | 0.1" | — |
| 1971 | 67° | 38° | 52° | — | — |
55 years of data from STAMFORD 5 N