Weather on August 18
Hartford, CT
55 Years of Data
Avg High
83°F
Avg Low
63°F
Warmest
2002
86°F avg
Coldest
2000
60°F avg
About This Date
August 18th in Hartford, CT typically brings warm summer weather, with average highs around 83°F and lows near 63°F. Over 55 years of records, the warmest August 18th was in 2002 (86°F average), while the coldest was 2000 (60°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 40% of August 18th dates historically, with the wettest August 18th recording 6.78" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Hartford, CT? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 60° | 69° | — | — |
| 2024 | 72° | 66° | 69° | 6.43" | — |
| 2023 | 83° | 65° | 74° | 4.29" | — |
| 2022 | 87° | 66° | 77° | — | — |
| 2021 | 83° | 69° | 76° | — | — |
| 2020 | 86° | 64° | 75° | 0.03" | — |
| 2019 | 90° | 68° | 79° | 0.28" | — |
| 2018 | 84° | 69° | 77° | 0.61" | — |
| 2017 | 82° | 69° | 76° | 0.33" | — |
| 2016 | 91° | 70° | 80° | 0.03" | — |
| 2015 | 92° | 71° | 81° | — | — |
| 2014 | 79° | 55° | 67° | — | — |
| 2013 | 78° | 62° | 70° | — | — |
| 2012 | 80° | 60° | 70° | 0.46" | — |
| 2011 | 84° | 65° | 74° | 0.03" | — |
| 2010 | 83° | 65° | 74° | — | — |
| 2009 | 92° | 71° | 81° | — | — |
| 2008 | 87° | 64° | 76° | — | — |
| 2007 | 73° | 56° | 64° | 0.03" | — |
| 2006 | 84° | 65° | 74° | — | — |
| 2005 | 79° | 60° | 69° | — | — |
| 2004 | 80° | 60° | 70° | 0.03" | — |
| 2003 | 81° | 64° | 72° | 0.23" | — |
| 2002warmest | 96° | 75° | 86° | — | — |
| 2001 | 85° | 63° | 74° | 0.03" | — |
| 2000coldest | 70° | 51° | 60° | 0.05" | — |
| 1999 | 88° | 70° | 79° | — | — |
| 1998 | 78° | 69° | 74° | 0.3" | — |
| 1997 | 90° | 59° | 74° | — | — |
| 1996 | 84° | 65° | 74° | — | — |
| 1995 | 88° | 62° | 75° | — | — |
| 1994 | 77° | 67° | 72° | 6.78" | — |
| 1993 | 73° | 68° | 71° | 0.13" | — |
| 1992 | 75° | 65° | 70° | 0.03" | — |
| 1991 | 89° | 71° | 80° | — | — |
| 1990 | 89° | 68° | 79° | — | — |
| 1989 | 82° | 61° | 71° | — | — |
| 1988 | 85° | 65° | 75° | — | — |
| 1987 | 97° | 74° | 85° | — | — |
| 1986 | 80° | 68° | 74° | 2.69" | — |
| 1985 | 82° | 59° | 71° | — | — |
| 1984 | 80° | 59° | 70° | — | — |
| 1983 | 84° | 62° | 73° | — | — |
| 1982 | 88° | 60° | 74° | 0.03" | — |
| 1981 | 75° | 50° | 63° | — | — |
| 1980 | 80° | 51° | 66° | — | — |
| 1979 | 73° | 48° | 61° | — | — |
| 1978 | 90° | 64° | 77° | — | — |
| 1977 | 79° | 54° | 66° | 0.81" | — |
| 1976 | 80° | 56° | 68° | — | — |
| 1975 | 73° | 66° | 70° | — | — |
| 1974 | 81° | 60° | 70° | 3.63" | — |
| 1973 | 81° | 62° | 71° | — | — |
| 1972 | 79° | 61° | 70° | — | — |
| 1971 | 88° | 57° | 72° | — | — |
55 years of data from HARTFORD BRAINARD FLD