Weather on August 20
Hartford, CT
55 Years of Data
Avg High
81°F
Avg Low
60°F
Warmest
2009
81°F avg
Coldest
2025
60°F avg
About This Date
August 20th in Hartford, CT typically brings warm summer weather, with average highs around 81°F and lows near 60°F. Over 55 years of records, the warmest August 20th was in 2009 (81°F average), while the coldest was 2025 (60°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 31% of August 20th dates historically, with the wettest August 20th recording 5.28" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for August 20th 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 |
|---|---|---|---|---|---|
| 2025coldest | 67° | 54° | 60° | 0.03" | — |
| 2024 | 70° | 55° | 62° | — | — |
| 2023 | 85° | 58° | 71° | — | — |
| 2022 | 94° | 68° | 81° | — | — |
| 2021 | 84° | 71° | 78° | 0.03" | — |
| 2020 | 83° | 57° | 70° | — | — |
| 2019 | 89° | 68° | 79° | — | — |
| 2018 | 79° | 64° | 71° | — | — |
| 2017 | 84° | 65° | 74° | — | — |
| 2016 | 88° | 67° | 77° | — | — |
| 2015 | 86° | 69° | 78° | — | — |
| 2014 | 82° | 59° | 71° | — | — |
| 2013 | 86° | 62° | 74° | — | — |
| 2012 | 79° | 59° | 69° | — | — |
| 2011 | 89° | 69° | 79° | — | — |
| 2010 | 87° | 63° | 75° | — | — |
| 2009warmest | 91° | 72° | 81° | — | — |
| 2008 | 74° | 51° | 62° | — | — |
| 2007 | 72° | 56° | 64° | 0.1" | — |
| 2006 | 87° | 69° | 78° | 2.08" | — |
| 2005 | 80° | 67° | 73° | — | — |
| 2004 | 89° | 69° | 79° | 1.4" | — |
| 2003 | 88° | 65° | 76° | — | — |
| 2002 | 80° | 64° | 72° | 1.57" | — |
| 2001 | 80° | 67° | 73° | 0.76" | — |
| 2000 | 73° | 52° | 62° | — | — |
| 1999 | 78° | 59° | 69° | 0.18" | — |
| 1998 | 89° | 51° | 70° | — | — |
| 1997 | 75° | 54° | 64° | 0.51" | — |
| 1996 | 82° | 61° | 71° | — | — |
| 1995 | 85° | 46° | 65° | — | — |
| 1994 | 82° | 66° | 74° | 0.05" | — |
| 1993 | 77° | 60° | 69° | — | — |
| 1992 | 74° | 51° | 62° | — | — |
| 1991 | 71° | 62° | 67° | 5.28" | — |
| 1990 | 75° | 56° | 65° | 0.3" | — |
| 1989 | 77° | 65° | 71° | 0.08" | — |
| 1988 | 76° | 55° | 65° | — | — |
| 1987 | 92° | 63° | 77° | 0.66" | — |
| 1986 | 78° | 67° | 72° | — | — |
| 1985 | 74° | 65° | 69° | — | — |
| 1984 | 79° | 55° | 67° | 0.23" | — |
| 1983 | 89° | 63° | 76° | — | — |
| 1982 | 84° | 60° | 72° | — | — |
| 1981 | 85° | 57° | 71° | — | — |
| 1980 | 72° | 59° | 65° | 0.81" | — |
| 1979 | 76° | 52° | 64° | — | — |
| 1978 | 84° | 57° | 71° | — | — |
| 1977 | 74° | 54° | 64° | — | — |
| 1976 | 76° | 55° | 65° | — | — |
| 1975 | 77° | 55° | 66° | — | — |
| 1974 | 87° | 58° | 72° | — | — |
| 1973 | 80° | 56° | 68° | — | — |
| 1972 | 81° | 56° | 68° | — | — |
| 1971 | 88° | 67° | 77° | 0.38" | — |
55 years of data from HARTFORD BRAINARD FLD