Weather on October 15
New Haven, CT
55 Years of Data
Avg High
66°F
Avg Low
47°F
Warmest
2014
74°F avg
Coldest
2009
39°F avg
About This Date
October 15th in New Haven, CT typically brings mild fall weather, with average highs around 66°F and lows near 47°F. Over 54 years of records, the warmest October 15th was in 2014 (74°F average), while the coldest was 2009 (39°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 28% of October 15th dates historically, with the wettest October 15th recording 4.85" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for October 15th in New Haven, CT? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 52° | 59° | — | — |
| 2024 | 61° | 45° | 53° | — | — |
| 2023 | 63° | 50° | 56° | — | — |
| 2022 | 70° | 46° | 58° | — | — |
| 2021 | 77° | 58° | 67° | — | — |
| 2020 | 73° | 44° | 59° | — | — |
| 2019 | 64° | 44° | 54° | — | — |
| 2018 | 70° | 45° | 57° | 0.25" | — |
| 2017 | 72° | 65° | 68° | — | — |
| 2016 | 61° | 38° | 49° | — | — |
| 2015 | 61° | 37° | 49° | — | — |
| 2014warmest | 79° | 69° | 74° | 0.25" | — |
| 2013 | 68° | 45° | 56° | — | — |
| 2012 | 73° | 60° | 67° | 0.69" | — |
| 2011 | 66° | 58° | 62° | — | — |
| 2010 | 58° | 48° | 53° | 0.61" | — |
| 2009coldest | 43° | 36° | 39° | 0.94" | — |
| 2008 | 70° | 52° | 61° | — | — |
| 2007 | 64° | 41° | 53° | — | — |
| 2006 | 58° | 32° | 45° | — | — |
| 2005 | 71° | 56° | 63° | 0.1" | — |
| 2004 | 62° | 55° | 59° | 2.13" | — |
| 2003 | 65° | 51° | 58° | 1.47" | — |
| 2002 | 56° | 32° | 44° | — | — |
| 2001 | 70° | 43° | 56° | 1.22" | — |
| 2000 | 77° | 48° | 63° | — | — |
| 1999 | 56° | 29° | 42° | — | — |
| 1997 | 71° | 53° | 62° | — | — |
| 1996 | 67° | 30° | 48° | — | — |
| 1995 | 68° | 50° | 59° | 4.85" | — |
| 1994 | 68° | 42° | 55° | — | — |
| 1993 | 55° | 43° | 49° | 0.1" | — |
| 1992 | 70° | 49° | 59° | — | — |
| 1991 | 64° | 38° | 51° | — | — |
| 1990 | 80° | 63° | 71° | — | — |
| 1989 | 78° | 59° | 69° | 0.18" | — |
| 1988 | 69° | 48° | 59° | — | — |
| 1987 | 70° | 36° | 53° | — | — |
| 1986 | 69° | 45° | 57° | — | — |
| 1985 | 73° | 62° | 68° | 0.25" | — |
| 1984 | 73° | 50° | 62° | — | — |
| 1983 | 64° | 47° | 55° | — | — |
| 1982 | 63° | 50° | 56° | — | — |
| 1981 | 64° | 38° | 51° | — | — |
| 1980 | 57° | 44° | 51° | — | — |
| 1979 | 55° | 38° | 46° | — | — |
| 1978 | 65° | 40° | 52° | — | — |
| 1977 | 54° | 43° | 48° | 0.89" | — |
| 1976 | 67° | 43° | 55° | — | — |
| 1975 | 74° | 51° | 62° | — | — |
| 1974 | 70° | 56° | 63° | 0.2" | — |
| 1973 | 71° | 56° | 63° | — | — |
| 1972 | 60° | 44° | 52° | — | — |
| 1971 | 71° | 61° | 66° | — | — |
54 years of data from NEW HAVEN