Weather on August 21
Syracuse, NY
55 Years of Data
Avg High
78°F
Avg Low
58°F
Warmest
2021
80°F avg
Coldest
1982
53°F avg
About This Date
August 21st in Syracuse, NY typically brings pleasant summer weather, with average highs around 78°F and lows near 58°F. Over 55 years of records, the warmest August 21st was in 2021 (80°F average), while the coldest was 1982 (53°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 35% of August 21st dates historically, with the wettest August 21st recording 3.51" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Syracuse, NY? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 57° | 66° | — | — |
| 2024 | 68° | 54° | 61° | 0.79" | — |
| 2023 | 75° | 61° | 68° | — | — |
| 2022 | 84° | 66° | 75° | 3.51" | — |
| 2021warmest | 86° | 73° | 80° | 0.1" | — |
| 2020 | 86° | 56° | 71° | — | — |
| 2019 | 83° | 68° | 75° | 1.4" | — |
| 2018 | 74° | 64° | 69° | — | — |
| 2017 | 87° | 60° | 74° | — | — |
| 2016 | 77° | 65° | 71° | 1.55" | — |
| 2015 | 87° | 61° | 74° | 0.48" | — |
| 2014 | 81° | 67° | 74° | 0.51" | — |
| 2013 | 85° | 63° | 74° | — | — |
| 2012 | 77° | 56° | 66° | — | — |
| 2011 | 88° | 67° | 77° | — | — |
| 2010 | 77° | 56° | 66° | — | — |
| 2009 | 88° | 68° | 78° | 0.3" | — |
| 2008 | 78° | 50° | 64° | — | — |
| 2007 | 66° | 53° | 60° | — | — |
| 2006 | 76° | 59° | 67° | — | — |
| 2005 | 84° | 69° | 77° | 0.71" | — |
| 2004 | 70° | 54° | 62° | 2.31" | — |
| 2003 | 88° | 61° | 74° | — | — |
| 2002 | 79° | 57° | 68° | — | — |
| 2001 | 78° | 65° | 71° | 0.03" | — |
| 2000 | 73° | 47° | 60° | — | — |
| 1999 | 73° | 56° | 64° | — | — |
| 1998 | 80° | 60° | 70° | 0.03" | — |
| 1997 | 70° | 55° | 62° | 2.29" | — |
| 1996 | 83° | 63° | 73° | — | — |
| 1995 | 88° | 66° | 77° | — | — |
| 1994 | 76° | 65° | 70° | 2.08" | — |
| 1993 | 70° | 53° | 61° | — | — |
| 1992 | 76° | 47° | 61° | — | — |
| 1991 | 78° | 64° | 71° | — | — |
| 1990 | 67° | 59° | 63° | 0.03" | — |
| 1989 | 82° | 68° | 75° | — | — |
| 1988 | 72° | 50° | 61° | 0.03" | — |
| 1987 | 84° | 54° | 69° | — | — |
| 1986 | 77° | 62° | 70° | 0.03" | — |
| 1985 | 74° | 58° | 66° | — | — |
| 1984 | 75° | 45° | 60° | — | — |
| 1983 | 74° | 52° | 63° | — | — |
| 1982coldest | 61° | 45° | 53° | — | — |
| 1981 | 85° | 55° | 70° | — | — |
| 1980 | 82° | 59° | 71° | — | — |
| 1979 | 80° | 53° | 67° | — | — |
| 1978 | 76° | 57° | 66° | — | — |
| 1977 | 71° | 42° | 57° | 0.2" | — |
| 1976 | 82° | 60° | 71° | — | — |
| 1975 | 75° | 46° | 61° | — | — |
| 1974 | 87° | 56° | 71° | — | — |
| 1973 | 76° | 60° | 68° | — | — |
| 1972 | 83° | 49° | 66° | — | — |
| 1971 | 82° | 59° | 71° | 0.43" | — |
55 years of data from SUNY ESF SYRACUSE