Weather on April 21
Syracuse, NY
55 Years of Data
Avg High
61°F
Avg Low
40°F
Warmest
1977
71°F avg
Coldest
1981
33°F avg
About This Date
April 21st in Syracuse, 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 (71°F average), while the coldest was 1981 (33°F) — a 38°F range across recorded history. Precipitation has occurred on 47% of recorded April 21st dates, with snow falling 5% of the time (heaviest snowfall: 2.5"). The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Syracuse, NY? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 33° | 51° | 0.05" | — |
| 2024 | 49° | 40° | 44° | — | — |
| 2023 | 88° | 50° | 69° | — | — |
| 2022 | 56° | 34° | 45° | 0.03" | — |
| 2021 | 38° | 32° | 35° | 0.46" | 0.6" |
| 2020 | 50° | 30° | 40° | 0.15" | 0.3" |
| 2019 | 56° | 46° | 51° | — | — |
| 2018 | 54° | 29° | 42° | — | — |
| 2017 | 59° | 48° | 54° | 0.51" | — |
| 2016 | 78° | 41° | 60° | — | — |
| 2015 | 63° | 46° | 54° | 1.09" | — |
| 2014 | 70° | 32° | 51° | — | — |
| 2013 | 46° | 31° | 38° | 0.03" | — |
| 2012 | 81° | 50° | 65° | — | — |
| 2011 | 71° | 37° | 54° | 0.08" | — |
| 2010 | 67° | 41° | 54° | — | — |
| 2009 | 52° | 42° | 47° | 0.41" | — |
| 2008 | 78° | 49° | 63° | — | — |
| 2007 | 72° | 37° | 54° | — | — |
| 2006 | 75° | 42° | 59° | — | — |
| 2005 | 53° | 35° | 44° | — | — |
| 2004 | 74° | 40° | 57° | 0.89" | — |
| 2003 | 63° | 52° | 57° | 0.28" | — |
| 2002 | 43° | 33° | 38° | — | — |
| 2001 | 71° | 49° | 60° | 0.15" | — |
| 2000 | 53° | 44° | 49° | 1.4" | — |
| 1999 | 61° | 34° | 47° | — | — |
| 1998 | 63° | 39° | 51° | — | — |
| 1997 | 56° | 38° | 47° | — | — |
| 1996 | 64° | 44° | 54° | — | — |
| 1995 | 64° | 47° | 55° | 0.18" | — |
| 1994 | 48° | 32° | 40° | — | — |
| 1993 | 59° | 36° | 47° | 0.94" | — |
| 1992 | 78° | 62° | 70° | 0.23" | — |
| 1991 | 44° | 37° | 41° | 2.74" | — |
| 1990 | 56° | 42° | 49° | 0.46" | — |
| 1989 | 59° | 35° | 47° | — | — |
| 1988 | 46° | 37° | 42° | 0.25" | — |
| 1987 | 84° | 51° | 68° | — | — |
| 1986 | 63° | 38° | 50° | 0.08" | — |
| 1985 | 78° | 43° | 60° | — | — |
| 1984 | 46° | 32° | 39° | — | — |
| 1983 | 39° | 32° | 36° | 0.79" | 2.5" |
| 1982 | 51° | 36° | 43° | 0.13" | — |
| 1981coldest | 41° | 24° | 33° | — | — |
| 1980 | 61° | 34° | 47° | — | — |
| 1979 | 70° | 35° | 52° | — | — |
| 1978 | 38° | 33° | 35° | 0.1" | — |
| 1977warmest | 81° | 62° | 71° | 0.08" | — |
| 1976 | 83° | 45° | 64° | 0.08" | — |
| 1975 | 42° | 30° | 36° | — | — |
| 1974 | 79° | 34° | 56° | — | — |
| 1973 | 79° | 51° | 65° | — | — |
| 1972 | 53° | 27° | 40° | — | — |
| 1971 | 52° | 42° | 47° | 0.13" | — |
55 years of data from SUNY ESF SYRACUSE