Weather on September 4
New Haven, CT
55 Years of Data
Avg High
81°F
Avg Low
61°F
Warmest
2018
81°F avg
Coldest
1984
57°F avg
About This Date
September 4th in New Haven, CT typically brings warm fall weather, with average highs around 81°F and lows near 61°F. Over 53 years of records, the warmest September 4th was in 2018 (81°F average), while the coldest was 1984 (57°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 30% of September 4th dates historically, with the wettest September 4th recording 3.89" of rain. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for September 4th in New Haven, CT? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 57° | 69° | — | — |
| 2024 | 79° | 53° | 66° | — | — |
| 2023 | 88° | 66° | 77° | — | — |
| 2022 | 84° | 73° | 79° | 0.03" | — |
| 2021 | 79° | 57° | 68° | — | — |
| 2020 | 85° | 65° | 75° | — | — |
| 2019 | 82° | 64° | 73° | 0.97" | — |
| 2018warmest | 90° | 72° | 81° | — | — |
| 2017 | 78° | 59° | 69° | — | — |
| 2016 | 81° | 57° | 69° | — | — |
| 2015 | 83° | 65° | 74° | — | — |
| 2014 | 85° | 61° | 73° | — | — |
| 2013 | 78° | 61° | 69° | — | — |
| 2012 | 79° | 68° | 73° | 1.75" | — |
| 2011 | 83° | 72° | 77° | — | — |
| 2010 | 80° | 66° | 73° | — | — |
| 2009 | 84° | 55° | 70° | — | — |
| 2008 | 85° | 67° | 76° | 0.03" | — |
| 2007 | 83° | 58° | 70° | — | — |
| 2006 | 75° | 58° | 66° | 0.05" | — |
| 2005 | 82° | 56° | 69° | — | — |
| 2004 | 80° | 68° | 74° | — | — |
| 2003 | 75° | 66° | 71° | 0.28" | — |
| 2002 | 82° | 65° | 73° | 1.91" | — |
| 2001 | 82° | 50° | 66° | 0.18" | — |
| 2000 | 85° | 58° | 71° | — | — |
| 1999 | 86° | 60° | 73° | 0.03" | — |
| 1997 | 69° | 48° | 59° | — | — |
| 1996 | 88° | 59° | 73° | 0.05" | — |
| 1995 | 83° | 51° | 67° | — | — |
| 1993 | 92° | 69° | 80° | 0.36" | — |
| 1992 | 78° | 58° | 68° | 3.89" | — |
| 1991 | 81° | 65° | 73° | — | — |
| 1990 | 86° | 56° | 71° | — | — |
| 1989 | 87° | 63° | 75° | — | — |
| 1988 | 84° | 67° | 75° | 3.71" | — |
| 1987 | 75° | 52° | 63° | — | — |
| 1986 | 67° | 58° | 62° | 0.23" | — |
| 1985 | 87° | 65° | 76° | — | — |
| 1984coldest | 61° | 54° | 57° | 1.27" | — |
| 1983 | 87° | 62° | 75° | — | — |
| 1982 | 77° | 55° | 66° | — | — |
| 1981 | 73° | 62° | 68° | — | — |
| 1980 | 85° | 61° | 73° | — | — |
| 1979 | 85° | 69° | 77° | — | — |
| 1978 | 80° | 63° | 71° | — | — |
| 1977 | 90° | 63° | 76° | — | — |
| 1976 | 69° | 56° | 62° | — | — |
| 1975 | 78° | 52° | 65° | — | — |
| 1974 | 67° | 56° | 61° | 2.69" | — |
| 1973 | 86° | 71° | 79° | — | — |
| 1972 | 76° | 62° | 69° | — | — |
| 1971 | 86° | 67° | 76° | — | — |
53 years of data from NEW HAVEN