Weather on July 21
New Haven, CT
55 Years of Data
Avg High
86°F
Avg Low
67°F
Warmest
1980
89°F avg
Coldest
2000
67°F avg
About This Date
July 21st in New Haven, CT typically brings warm summer weather, with average highs around 86°F and lows near 67°F. Over 51 years of records, the warmest July 21st was in 1980 (89°F average), while the coldest was 2000 (67°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 31% of July 21st dates historically, with the wettest July 21st recording 7.26" of rain. The last decade has been 7.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.2°F warmer on this date compared to 20-30 years ago.
Planning for July 21st 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 | 86° | 67° | 76° | — | — |
| 2024 | 86° | 73° | 80° | 0.03" | — |
| 2023 | 85° | 69° | 77° | 1.47" | — |
| 2022 | 91° | 74° | 82° | — | — |
| 2021 | 82° | 67° | 74° | 0.1" | — |
| 2020 | 90° | 73° | 81° | — | — |
| 2019 | 97° | 75° | 86° | — | — |
| 2018 | 75° | 62° | 69° | 0.2" | — |
| 2017 | 88° | 73° | 80° | — | — |
| 2016 | 86° | 60° | 73° | — | — |
| 2015 | 86° | 71° | 79° | — | — |
| 2014 | 83° | 62° | 72° | — | — |
| 2013 | 86° | 72° | 79° | 0.03" | — |
| 2012 | 76° | 61° | 68° | — | — |
| 2011 | 89° | 74° | 81° | — | — |
| 2010 | 87° | 72° | 79° | 0.53" | — |
| 2009 | 70° | 66° | 68° | 7.26" | — |
| 2008 | 88° | 74° | 81° | — | — |
| 2007 | 83° | 61° | 72° | — | — |
| 2006 | 82° | 68° | 75° | 0.23" | — |
| 2005 | 87° | 63° | 75° | — | — |
| 2004 | 84° | 62° | 73° | — | — |
| 2003 | 77° | 66° | 72° | 0.23" | — |
| 2002 | 80° | 63° | 71° | — | — |
| 2001 | 87° | 55° | 71° | — | — |
| 2000coldest | 81° | 53° | 67° | 0.76" | — |
| 1997 | 79° | 58° | 68° | — | — |
| 1996 | 80° | 55° | 68° | — | — |
| 1995 | 88° | 69° | 78° | — | — |
| 1992 | 83° | 64° | 73° | — | — |
| 1991 | 100° | 78° | 89° | — | — |
| 1990 | 98° | 81° | 89° | — | — |
| 1989 | 74° | 64° | 69° | — | — |
| 1988 | 78° | 68° | 73° | 0.25" | — |
| 1987 | 93° | 70° | 81° | — | — |
| 1986 | 89° | 66° | 78° | — | — |
| 1985 | 87° | 67° | 77° | — | — |
| 1984 | 77° | 63° | 70° | 1.52" | — |
| 1983 | 90° | 68° | 79° | 0.36" | — |
| 1982 | 83° | 60° | 71° | — | — |
| 1981 | 90° | 70° | 80° | 1.09" | — |
| 1980warmest | 100° | 79° | 89° | — | — |
| 1979 | 85° | 71° | 78° | — | — |
| 1978 | 90° | 69° | 79° | — | — |
| 1977 | 100° | 76° | 88° | — | — |
| 1976 | 85° | 72° | 78° | — | — |
| 1975 | 86° | 69° | 78° | 1.42" | — |
| 1974 | 80° | 56° | 68° | — | — |
| 1973 | 82° | 67° | 74° | 3.51" | — |
| 1972 | 90° | 70° | 80° | — | — |
| 1971 | 83° | 60° | 71° | — | — |
51 years of data from NEW HAVEN