Weather on October 21
Stamford, CT
55 Years of Data
Avg High
65°F
Avg Low
41°F
Warmest
2016
67°F avg
Coldest
1974
34°F avg
About This Date
October 21st in Stamford, CT typically brings mild fall weather, with average highs around 65°F and lows near 41°F. Over 55 years of records, the warmest October 21st was in 2016 (67°F average), while the coldest was 1974 (34°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 25% of October 21st dates historically, with the wettest October 21st recording 4.29" of rain. The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Stamford, CT? Great weather for outdoor activities.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 48° | 57° | 0.05" | — |
| 2024 | 80° | 45° | 62° | — | — |
| 2023 | 61° | 55° | 58° | 1.02" | — |
| 2022 | 62° | 36° | 49° | — | — |
| 2021 | 74° | 51° | 62° | — | — |
| 2020 | 68° | 47° | 57° | — | — |
| 2019 | 69° | 49° | 59° | 1.27" | — |
| 2018 | 60° | 43° | 51° | — | — |
| 2017 | 81° | 42° | 61° | — | — |
| 2016warmest | 72° | 62° | 67° | — | — |
| 2015 | 77° | 44° | 61° | — | — |
| 2014 | 67° | 29° | 48° | — | — |
| 2013 | 70° | 34° | 52° | — | — |
| 2012 | 65° | 40° | 52° | — | — |
| 2011 | 56° | 48° | 52° | — | — |
| 2010 | 62° | 45° | 53° | 0.03" | — |
| 2009 | 67° | 44° | 55° | — | — |
| 2008 | 59° | 36° | 47° | — | — |
| 2007 | 73° | 46° | 60° | — | — |
| 2006 | 59° | 42° | 51° | — | — |
| 2005 | 57° | 42° | 50° | 0.03" | — |
| 2004 | 56° | 44° | 50° | — | — |
| 2003 | 70° | 40° | 55° | — | — |
| 2002 | 61° | 37° | 49° | — | — |
| 2001 | 71° | 40° | 55° | — | — |
| 2000 | 74° | 39° | 56° | — | — |
| 1999 | 62° | 38° | 50° | — | — |
| 1998 | 61° | 38° | 49° | — | — |
| 1997 | 62° | 34° | 48° | — | — |
| 1996 | 60° | 46° | 53° | 1.5" | — |
| 1995 | 68° | 59° | 64° | 4.29" | — |
| 1994 | 69° | 52° | 60° | 0.25" | — |
| 1993 | 65° | 50° | 57° | 1.12" | — |
| 1992 | 58° | 43° | 50° | — | — |
| 1991 | 59° | 29° | 44° | — | — |
| 1990 | 64° | 34° | 49° | — | — |
| 1989 | 59° | 38° | 48° | 0.53" | — |
| 1988 | 52° | 29° | 40° | 0.58" | — |
| 1987 | 61° | 48° | 54° | 0.41" | — |
| 1986 | 71° | 33° | 52° | — | — |
| 1985 | 65° | 36° | 50° | — | — |
| 1984 | 74° | 46° | 60° | — | — |
| 1983 | 55° | 31° | 43° | — | — |
| 1982 | 63° | 53° | 58° | 0.43" | — |
| 1981 | 68° | 33° | 51° | — | — |
| 1980 | 59° | 42° | 51° | — | — |
| 1979 | 75° | 56° | 65° | — | — |
| 1978 | 72° | 33° | 52° | — | — |
| 1977 | 67° | 35° | 51° | — | — |
| 1976 | 63° | 47° | 55° | 4.19" | — |
| 1975 | 69° | 39° | 54° | — | — |
| 1974coldest | 48° | 19° | 34° | — | — |
| 1973 | 62° | 38° | 50° | — | — |
| 1972 | 50° | 22° | 36° | — | — |
| 1971 | 73° | 35° | 54° | — | — |
55 years of data from STAMFORD 5 N