Weather on May 21
Rochester, NY
55 Years of Data
Avg High
71°F
Avg Low
50°F
Warmest
2024
77°F avg
Coldest
1990
45°F avg
About This Date
May 21st in Rochester, NY typically brings pleasant spring weather, with average highs around 71°F and lows near 50°F. Over 55 years of records, the warmest May 21st was in 2024 (77°F average), while the coldest was 1990 (45°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 38% of May 21st dates historically, with the wettest May 21st recording 2.29" of rain. The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Rochester, NY? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 45° | 49° | 1.93" | — |
| 2024warmest | 88° | 67° | 77° | — | — |
| 2023 | 73° | 52° | 62° | — | — |
| 2022 | 87° | 65° | 76° | 2.29" | — |
| 2021 | 89° | 59° | 74° | — | — |
| 2020 | 73° | 44° | 59° | — | — |
| 2019 | 65° | 45° | 55° | — | — |
| 2018 | 76° | 46° | 61° | — | — |
| 2017 | 73° | 54° | 63° | 0.33" | — |
| 2016 | 69° | 52° | 60° | 0.1" | — |
| 2015 | 66° | 45° | 55° | — | — |
| 2014 | 73° | 57° | 65° | — | — |
| 2013 | 86° | 63° | 74° | 0.3" | — |
| 2012 | 83° | 59° | 71° | 0.36" | — |
| 2011 | 76° | 54° | 65° | 0.33" | — |
| 2010 | 78° | 52° | 65° | 0.03" | — |
| 2009 | 85° | 56° | 70° | — | — |
| 2008 | 53° | 41° | 47° | 0.05" | — |
| 2007 | 64° | 38° | 51° | — | — |
| 2006 | 52° | 44° | 48° | 0.18" | — |
| 2005 | 67° | 40° | 53° | 0.23" | — |
| 2004 | 67° | 54° | 60° | — | — |
| 2003 | 57° | 44° | 51° | — | — |
| 2002 | 55° | 37° | 46° | — | — |
| 2001 | 64° | 56° | 60° | 0.58" | — |
| 2000 | 57° | 48° | 53° | — | — |
| 1999 | 73° | 44° | 59° | — | — |
| 1998 | 62° | 50° | 56° | — | — |
| 1997 | 55° | 37° | 46° | — | — |
| 1996 | 72° | 55° | 63° | 2.21" | — |
| 1995 | 72° | 49° | 60° | 0.25" | — |
| 1994 | 76° | 46° | 61° | — | — |
| 1993 | 64° | 37° | 51° | 0.2" | — |
| 1992 | 82° | 50° | 66° | — | — |
| 1991 | 80° | 48° | 64° | — | — |
| 1990coldest | 50° | 40° | 45° | 0.41" | — |
| 1989 | 72° | 56° | 64° | — | — |
| 1988 | 73° | 53° | 63° | 0.69" | — |
| 1987 | 81° | 51° | 66° | — | — |
| 1986 | 60° | 51° | 56° | 0.33" | — |
| 1985 | 68° | 48° | 58° | — | — |
| 1984 | 72° | 47° | 59° | — | — |
| 1983 | 70° | 48° | 59° | — | — |
| 1982 | 65° | 49° | 57° | — | — |
| 1981 | 78° | 43° | 60° | — | — |
| 1980 | 73° | 54° | 63° | — | — |
| 1979 | 67° | 47° | 57° | 0.64" | — |
| 1978 | 65° | 46° | 55° | — | — |
| 1977 | 92° | 58° | 75° | — | — |
| 1976 | 62° | 45° | 53° | — | — |
| 1975 | 84° | 61° | 72° | 0.97" | — |
| 1974 | 76° | 46° | 61° | — | — |
| 1973 | 68° | 49° | 58° | 1.88" | — |
| 1972 | 84° | 55° | 70° | — | — |
| 1971 | 67° | 44° | 55° | — | — |
55 years of data from ROCHESTER GTR INTL