Weather on July 18
New Haven, CT
55 Years of Data
Avg High
87°F
Avg Low
68°F
Warmest
1977
86°F avg
Coldest
1976
69°F avg
About This Date
July 18th in New Haven, CT typically brings warm summer weather, with average highs around 87°F and lows near 68°F. Over 51 years of records, the warmest July 18th was in 1977 (86°F average), while the coldest was 1976 (69°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 35% of July 18th dates historically, with the wettest July 18th recording 3.43" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for July 18th in New Haven, CT? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 68° | 76° | — | — |
| 2024 | 88° | 72° | 80° | — | — |
| 2023 | 86° | 71° | 79° | 0.61" | — |
| 2022 | 80° | 75° | 78° | 1.5" | — |
| 2021 | 87° | 76° | 81° | 0.15" | — |
| 2020 | 87° | 69° | 78° | — | — |
| 2019 | 80° | 70° | 75° | 3.43" | — |
| 2018 | 85° | 63° | 74° | — | — |
| 2017 | 85° | 71° | 78° | — | — |
| 2016 | 90° | 69° | 79° | 0.08" | — |
| 2015 | 80° | 70° | 75° | — | — |
| 2014 | 84° | 62° | 73° | — | — |
| 2013 | 95° | 76° | 85° | — | — |
| 2012 | 94° | 74° | 84° | 0.13" | — |
| 2011 | 86° | 72° | 79° | 0.03" | — |
| 2010 | 91° | 71° | 81° | — | — |
| 2009 | 83° | 72° | 77° | 0.15" | — |
| 2008 | 90° | 70° | 80° | — | — |
| 2007 | 72° | 67° | 69° | 2.08" | — |
| 2006 | 93° | 70° | 81° | 0.41" | — |
| 2005 | 83° | 74° | 78° | 0.25" | — |
| 2004 | 78° | 66° | 72° | 0.2" | — |
| 2003 | 79° | 63° | 71° | 0.05" | — |
| 2002 | 91° | 66° | 79° | — | — |
| 2001 | 82° | 63° | 72° | — | — |
| 2000 | 86° | 64° | 75° | — | — |
| 1997 | 95° | 69° | 82° | — | — |
| 1996 | 89° | 61° | 75° | — | — |
| 1995 | 83° | 61° | 72° | 2.01" | — |
| 1992 | 82° | 66° | 74° | 1.17" | — |
| 1991 | 95° | 74° | 84° | — | — |
| 1990 | 91° | 71° | 81° | — | — |
| 1989 | 80° | 63° | 71° | — | — |
| 1988 | 94° | 69° | 81° | — | — |
| 1987 | 100° | 69° | 85° | — | — |
| 1986 | 85° | 70° | 77° | — | — |
| 1985 | 85° | 59° | 72° | — | — |
| 1984 | 81° | 64° | 72° | 1.78" | — |
| 1983 | 92° | 69° | 80° | — | — |
| 1982 | 97° | 74° | 85° | — | — |
| 1981 | 90° | 68° | 79° | — | — |
| 1980 | 94° | 72° | 83° | — | — |
| 1979 | 88° | 70° | 79° | 0.13" | — |
| 1978 | 82° | 64° | 73° | — | — |
| 1977warmest | 97° | 75° | 86° | — | — |
| 1976coldest | 80° | 58° | 69° | — | — |
| 1975 | 87° | 70° | 78° | — | — |
| 1974 | 82° | 68° | 75° | — | — |
| 1973 | 89° | 62° | 76° | — | — |
| 1972 | 89° | 72° | 80° | — | — |
| 1971 | 84° | 59° | 72° | 0.48" | — |
51 years of data from NEW HAVEN