Weather on May 20
Edison, NJ
55 Years of Data
Avg High
72°F
Avg Low
50°F
Warmest
1986
75°F avg
Coldest
2002
47°F avg
About This Date
May 20th in Edison, NJ typically brings pleasant spring weather, with average highs around 72°F and lows near 50°F. Over 55 years of records, the warmest May 20th was in 1986 (75°F average), while the coldest was 2002 (47°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 45% of May 20th dates historically, with the wettest May 20th recording 2.79" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for May 20th in Edison, NJ? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 43° | 57° | — | — |
| 2024 | 76° | 50° | 63° | — | — |
| 2023 | 72° | 51° | 61° | 0.08" | — |
| 2022 | 72° | 54° | 63° | 0.05" | — |
| 2021 | 88° | 52° | 70° | — | — |
| 2020 | 67° | 49° | 58° | — | — |
| 2019 | 87° | 62° | 75° | 0.08" | — |
| 2018 | 70° | 50° | 60° | 0.99" | — |
| 2017 | 92° | 59° | 75° | — | — |
| 2016 | 75° | 43° | 59° | — | — |
| 2015 | 81° | 52° | 66° | — | — |
| 2014 | 73° | 46° | 60° | 0.03" | — |
| 2013 | 59° | 56° | 57° | 0.36" | — |
| 2012 | 79° | 48° | 63° | — | — |
| 2011 | 71° | 55° | 63° | 0.1" | — |
| 2010 | 65° | 50° | 57° | — | — |
| 2009 | 71° | 44° | 58° | — | — |
| 2008 | 61° | 37° | 49° | — | — |
| 2007 | 67° | 51° | 59° | 0.43" | — |
| 2006 | 64° | 46° | 55° | 1.02" | — |
| 2005 | 73° | 49° | 61° | 1.12" | — |
| 2004 | 71° | 54° | 62° | 0.97" | — |
| 2003 | 75° | 40° | 57° | — | — |
| 2002coldest | 61° | 34° | 47° | — | — |
| 2001 | 84° | 55° | 70° | — | — |
| 2000 | 61° | 47° | 54° | 2.21" | — |
| 1999 | 66° | 53° | 60° | 1.42" | — |
| 1998 | 89° | 54° | 71° | — | — |
| 1997 | 86° | 52° | 69° | 0.25" | — |
| 1996 | 91° | 55° | 73° | — | — |
| 1995 | 60° | 43° | 51° | 0.23" | — |
| 1994 | 53° | 45° | 49° | 1.04" | — |
| 1993 | 56° | 52° | 54° | 0.05" | — |
| 1992 | 68° | 37° | 53° | — | — |
| 1991 | 64° | 38° | 51° | — | — |
| 1990 | 74° | 53° | 63° | 0.03" | — |
| 1989 | 78° | 50° | 64° | — | — |
| 1988 | 61° | 56° | 58° | 1.07" | — |
| 1987 | 55° | 51° | 53° | 0.15" | — |
| 1986warmest | 89° | 60° | 75° | — | — |
| 1985 | 66° | 49° | 57° | — | — |
| 1984 | 77° | 51° | 64° | 0.2" | — |
| 1983 | 65° | 51° | 58° | 0.41" | — |
| 1982 | 82° | 61° | 71° | — | — |
| 1981 | 63° | 44° | 53° | — | — |
| 1980 | 79° | 60° | 69° | — | — |
| 1979 | 59° | 55° | 57° | 2.79" | — |
| 1978 | 78° | 54° | 66° | — | — |
| 1977 | 71° | 51° | 61° | — | — |
| 1976 | 55° | 43° | 49° | 0.13" | — |
| 1975 | 82° | 60° | 71° | — | — |
| 1974 | 70° | 47° | 58° | — | — |
| 1973 | 68° | 42° | 55° | — | — |
| 1972 | 68° | 53° | 61° | 2.34" | — |
| 1971 | 79° | 49° | 64° | — | — |
55 years of data from NEW BRUNSWICK 3 SE