Weather on October 21
Edison, NJ
55 Years of Data
Avg High
64°F
Avg Low
42°F
Warmest
2016
68°F avg
Coldest
1974
35°F avg
About This Date
October 21st in Edison, NJ typically brings mild fall weather, with average highs around 64°F and lows near 42°F. Over 55 years of records, the warmest October 21st was in 2016 (68°F average), while the coldest was 1974 (35°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 33% of October 21st dates historically, with the wettest October 21st recording 5.18" of rain. The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Edison, NJ? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 40° | 51° | — | — |
| 2024 | 78° | 39° | 59° | — | — |
| 2023 | 68° | 57° | 63° | 0.89" | — |
| 2022 | 60° | 34° | 47° | — | — |
| 2021 | 77° | 49° | 63° | — | — |
| 2020 | 73° | 58° | 65° | 0.05" | — |
| 2019 | 56° | 43° | 49° | 2.08" | — |
| 2018 | 65° | 45° | 55° | 0.08" | — |
| 2017 | 75° | 40° | 57° | — | — |
| 2016warmest | 73° | 62° | 68° | — | — |
| 2015 | 73° | 45° | 59° | — | — |
| 2014 | 63° | 34° | 48° | — | — |
| 2013 | 66° | 35° | 51° | — | — |
| 2012 | 71° | 42° | 57° | — | — |
| 2011 | 65° | 48° | 56° | — | — |
| 2010 | 59° | 41° | 50° | — | — |
| 2009 | 70° | 37° | 53° | — | — |
| 2008 | 65° | 29° | 47° | — | — |
| 2007 | 72° | 45° | 58° | — | — |
| 2006 | 67° | 41° | 54° | 0.38" | — |
| 2005 | 62° | 48° | 55° | — | — |
| 2004 | 54° | 47° | 50° | 0.05" | — |
| 2003 | 61° | 36° | 48° | — | — |
| 2002 | 61° | 40° | 50° | — | — |
| 2001 | 73° | 42° | 58° | — | — |
| 2000 | 70° | 37° | 53° | — | — |
| 1999 | 54° | 40° | 47° | 0.99" | — |
| 1998 | 67° | 39° | 53° | — | — |
| 1997 | 66° | 38° | 52° | — | — |
| 1996 | 60° | 39° | 50° | 0.2" | — |
| 1995 | 74° | 52° | 63° | 0.86" | — |
| 1994 | 64° | 50° | 57° | 0.25" | — |
| 1993 | 60° | 56° | 58° | 1.42" | — |
| 1992 | 49° | 28° | 38° | 0.03" | — |
| 1991 | 55° | 30° | 43° | — | — |
| 1990 | 63° | 36° | 49° | — | — |
| 1989 | 67° | 37° | 52° | 3.91" | — |
| 1988 | 60° | 34° | 47° | — | — |
| 1987 | 69° | 51° | 60° | 0.15" | — |
| 1986 | 67° | 35° | 51° | — | — |
| 1985 | 61° | 45° | 53° | — | — |
| 1984 | 76° | 56° | 66° | — | — |
| 1983 | 54° | 37° | 45° | — | — |
| 1982 | 76° | 43° | 59° | 0.66" | — |
| 1981 | 59° | 28° | 44° | — | — |
| 1980 | 60° | 41° | 51° | — | — |
| 1979 | 71° | 55° | 63° | — | — |
| 1978 | 58° | 34° | 46° | — | — |
| 1977 | 60° | 43° | 51° | 0.05" | — |
| 1976 | 63° | 49° | 56° | 5.18" | — |
| 1975 | 56° | 43° | 49° | 0.03" | — |
| 1974coldest | 43° | 27° | 35° | — | — |
| 1973 | 66° | 43° | 54° | — | — |
| 1972 | 47° | 26° | 36° | — | — |
| 1971 | 57° | 44° | 51° | — | — |
55 years of data from NEW BRUNSWICK 3 SE