Weather on September 21
Jersey City, NJ
55 Years of Data
Avg High
74°F
Avg Low
59°F
Warmest
1998
77°F avg
Coldest
1977
55°F avg
About This Date
September 21st in Jersey City, NJ typically brings pleasant fall weather, with average highs around 74°F and lows near 59°F. Over 55 years of records, the warmest September 21st was in 1998 (77°F average), while the coldest was 1977 (55°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 21st dates historically, with the wettest September 21st recording 3.56" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 21st in Jersey City, NJ? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 58° | 64° | — | — |
| 2024 | 79° | 63° | 71° | — | — |
| 2023 | 76° | 59° | 67° | — | — |
| 2022 | 79° | 64° | 71° | — | — |
| 2021 | 76° | 63° | 69° | 0.23" | — |
| 2020 | 65° | 49° | 57° | — | — |
| 2019 | 84° | 61° | 72° | — | — |
| 2018 | 72° | 67° | 69° | — | — |
| 2017 | 80° | 71° | 76° | — | — |
| 2016 | 84° | 68° | 76° | — | — |
| 2015 | 73° | 59° | 66° | — | — |
| 2014 | 75° | 67° | 71° | 0.38" | — |
| 2013 | 77° | 61° | 69° | 1.83" | — |
| 2012 | 75° | 60° | 68° | — | — |
| 2011 | 73° | 63° | 68° | 0.15" | — |
| 2010 | 74° | 54° | 64° | — | — |
| 2009 | 75° | 57° | 66° | — | — |
| 2008 | 80° | 56° | 68° | — | — |
| 2007 | 82° | 63° | 72° | — | — |
| 2006 | 68° | 52° | 60° | — | — |
| 2005 | 83° | 65° | 74° | — | — |
| 2004 | 80° | 58° | 69° | — | — |
| 2003 | 75° | 61° | 68° | — | — |
| 2002 | 82° | 69° | 76° | — | — |
| 2001 | 75° | 64° | 70° | 0.91" | — |
| 2000 | 74° | 61° | 67° | — | — |
| 1999 | 67° | 55° | 61° | 1.57" | — |
| 1998warmest | 84° | 69° | 77° | 0.38" | — |
| 1997 | 64° | 53° | 59° | — | — |
| 1996 | 76° | 55° | 65° | — | — |
| 1995 | 74° | 54° | 64° | — | — |
| 1994 | 74° | 41° | 57° | — | — |
| 1993 | 62° | 52° | 57° | 0.61" | — |
| 1992 | 73° | 61° | 67° | 0.05" | — |
| 1991 | 65° | 46° | 55° | — | — |
| 1990 | 71° | 50° | 61° | — | — |
| 1989 | 76° | 69° | 72° | — | — |
| 1988 | 77° | 62° | 70° | — | — |
| 1987 | 66° | 54° | 60° | — | — |
| 1986 | 72° | 60° | 66° | — | — |
| 1985 | 80° | 62° | 71° | — | — |
| 1984 | 75° | 60° | 68° | — | — |
| 1983 | 78° | 60° | 69° | 2.79" | — |
| 1982 | 66° | 52° | 59° | — | — |
| 1981 | 72° | 58° | 65° | — | — |
| 1980 | 74° | 59° | 66° | — | — |
| 1979 | 67° | 57° | 62° | 3.56" | — |
| 1978 | 80° | 57° | 69° | — | — |
| 1977coldest | 61° | 50° | 55° | — | — |
| 1976 | 67° | 58° | 62° | — | — |
| 1975 | 72° | 62° | 67° | — | — |
| 1974 | 76° | 58° | 67° | 1.4" | — |
| 1973 | 65° | 50° | 57° | — | — |
| 1972 | 60° | 55° | 58° | 1.02" | — |
| 1971 | 72° | 62° | 67° | — | — |
55 years of data from JERSEY CITY