Weather on April 21
Rochester, NY
55 Years of Data
Avg High
61°F
Avg Low
40°F
Warmest
1977
75°F avg
Coldest
1981
31°F avg
About This Date
April 21st in Rochester, NY typically brings mild spring weather, with average highs around 61°F and lows near 40°F. Over 55 years of records, the warmest April 21st was in 1977 (75°F average), while the coldest was 1981 (31°F) — a 44°F range across recorded history. Precipitation has occurred on 44% of recorded April 21st dates, with snow falling 7% of the time (heaviest snowfall: 2.8"). The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Rochester, NY? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 41° | 55° | 1.9" | — |
| 2024 | 48° | 38° | 43° | — | — |
| 2023 | 83° | 43° | 63° | — | — |
| 2022 | 59° | 40° | 49° | — | — |
| 2021 | 36° | 31° | 34° | 0.74" | 2.8" |
| 2020 | 47° | 30° | 39° | 0.1" | 0.3" |
| 2019 | 56° | 45° | 50° | — | — |
| 2018 | 57° | 29° | 43° | — | — |
| 2017 | 59° | 47° | 53° | 0.03" | — |
| 2016 | 77° | 37° | 57° | 0.08" | — |
| 2015 | 57° | 43° | 50° | — | — |
| 2014 | 77° | 43° | 60° | — | — |
| 2013 | 43° | 26° | 35° | — | — |
| 2012 | 57° | 39° | 48° | 1.55" | — |
| 2011 | 44° | 31° | 37° | — | — |
| 2010 | 67° | 39° | 53° | — | — |
| 2009 | 61° | 42° | 51° | 0.28" | — |
| 2008 | 76° | 55° | 65° | — | — |
| 2007 | 74° | 39° | 56° | — | — |
| 2006 | 77° | 42° | 60° | 0.05" | — |
| 2005 | 49° | 34° | 41° | — | — |
| 2004 | 76° | 43° | 59° | 1.35" | — |
| 2003 | 64° | 51° | 58° | 0.2" | — |
| 2002 | 41° | 35° | 38° | — | — |
| 2001 | 67° | 47° | 57° | 0.18" | — |
| 2000 | 58° | 44° | 51° | 0.76" | — |
| 1999 | 60° | 36° | 48° | — | — |
| 1998 | 65° | 35° | 50° | — | — |
| 1997 | 56° | 36° | 46° | — | — |
| 1996 | 63° | 45° | 54° | — | — |
| 1995 | 69° | 46° | 58° | 0.13" | — |
| 1994 | 49° | 31° | 40° | — | — |
| 1993 | 54° | 35° | 44° | 0.33" | — |
| 1992 | 70° | 62° | 66° | 1.27" | — |
| 1991 | 41° | 36° | 38° | 4.55" | — |
| 1990 | 54° | 39° | 46° | 0.25" | — |
| 1989 | 56° | 34° | 45° | — | — |
| 1988 | 46° | 32° | 39° | 0.03" | — |
| 1987 | 82° | 48° | 65° | — | — |
| 1986 | 60° | 35° | 48° | 0.05" | — |
| 1985 | 83° | 50° | 66° | — | — |
| 1984 | 51° | 36° | 43° | — | — |
| 1983 | 39° | 33° | 36° | 0.41" | 1.1" |
| 1982 | 49° | 33° | 41° | — | — |
| 1981coldest | 38° | 25° | 31° | — | — |
| 1980 | 66° | 35° | 51° | — | — |
| 1979 | 69° | 36° | 52° | — | — |
| 1978 | 40° | 35° | 37° | 0.36" | 1.5" |
| 1977warmest | 86° | 64° | 75° | 0.03" | — |
| 1976 | 82° | 49° | 65° | 2.29" | — |
| 1975 | 45° | 30° | 37° | — | — |
| 1974 | 85° | 39° | 62° | — | — |
| 1973 | 87° | 61° | 74° | — | — |
| 1972 | 53° | 29° | 41° | — | — |
| 1971 | 52° | 39° | 45° | 0.05" | — |
55 years of data from ROCHESTER GTR INTL