Weather on August 21
Jersey City, NJ
55 Years of Data
Avg High
81°F
Avg Low
65°F
Warmest
2005
84°F avg
Coldest
2007
57°F avg
About This Date
August 21st in Jersey City, NJ typically brings warm summer weather, with average highs around 81°F and lows near 65°F. Over 55 years of records, the warmest August 21st was in 2005 (84°F average), while the coldest was 2007 (57°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 21st dates historically, with the wettest August 21st recording 11.3" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Jersey City, NJ? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 59° | 65° | 0.69" | — |
| 2024 | 73° | 57° | 65° | — | — |
| 2023 | 85° | 68° | 76° | — | — |
| 2022 | 89° | 75° | 82° | 0.03" | — |
| 2021 | 82° | 73° | 78° | 11.3" | — |
| 2020 | 83° | 68° | 75° | — | — |
| 2019 | 87° | 74° | 80° | 0.25" | — |
| 2018 | 79° | 66° | 72° | 0.28" | — |
| 2017 | 87° | 71° | 79° | — | — |
| 2016 | 86° | 73° | 80° | 0.79" | — |
| 2015 | 87° | 71° | 79° | 0.81" | — |
| 2014 | 83° | 65° | 74° | 0.89" | — |
| 2013 | 90° | 72° | 81° | — | — |
| 2012 | 82° | 66° | 74° | — | — |
| 2011 | 84° | 70° | 77° | 1.7" | — |
| 2010 | 85° | 66° | 75° | — | — |
| 2009 | 89° | 72° | 80° | 0.33" | — |
| 2008 | 82° | 62° | 72° | — | — |
| 2007coldest | 59° | 56° | 57° | 3.23" | — |
| 2006 | 86° | 69° | 78° | — | — |
| 2005warmest | 93° | 76° | 84° | — | — |
| 2004 | 83° | 64° | 73° | 1.42" | — |
| 2003 | 88° | 73° | 80° | — | — |
| 2002 | 84° | 68° | 76° | — | — |
| 2001 | 84° | 71° | 78° | — | — |
| 2000 | 74° | 57° | 65° | — | — |
| 1999 | 64° | 59° | 62° | 0.13" | — |
| 1998 | 84° | 64° | 74° | — | — |
| 1997 | 71° | 62° | 67° | 1.14" | — |
| 1996 | 81° | 68° | 74° | — | — |
| 1995 | 88° | 59° | 73° | — | — |
| 1994 | 83° | 68° | 75° | — | — |
| 1993 | 84° | 67° | 75° | — | — |
| 1992 | 79° | 57° | 68° | — | — |
| 1991 | 83° | 65° | 74° | 0.03" | — |
| 1990 | 69° | 58° | 63° | 0.18" | — |
| 1989 | 86° | 70° | 78° | 0.05" | — |
| 1988 | 76° | 65° | 70° | — | — |
| 1987 | 78° | 70° | 74° | — | — |
| 1986 | 66° | 62° | 64° | 2.79" | — |
| 1985 | 72° | 64° | 68° | 0.25" | — |
| 1984 | 78° | 56° | 67° | — | — |
| 1983 | 88° | 68° | 78° | — | — |
| 1982 | 68° | 50° | 59° | — | — |
| 1981 | 84° | 62° | 73° | — | — |
| 1980 | 68° | 60° | 64° | — | — |
| 1979 | — | 62° | — | — | — |
| 1978 | 78° | 60° | 69° | — | — |
| 1977 | 73° | 59° | 66° | — | — |
| 1976 | 91° | 66° | 79° | — | — |
| 1975 | 78° | 63° | 70° | — | — |
| 1974 | 85° | 68° | 76° | — | — |
| 1973 | 76° | 65° | 70° | — | — |
| 1972 | 78° | 63° | 70° | — | — |
| 1971 | 90° | 72° | 81° | — | — |
55 years of data from JERSEY CITY