Weather on August 21
Cary, NC
55 Years of Data
Avg High
86°F
Avg Low
67°F
Warmest
1983
89°F avg
Coldest
2000
64°F avg
About This Date
August 21st in Cary, NC typically brings warm summer weather, with average highs around 86°F and lows near 67°F. Over 55 years of records, the warmest August 21st was in 1983 (89°F average), while the coldest was 2000 (64°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 21st dates historically, with the wettest August 21st recording 6.96" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 21st in Cary, NC? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 69° | 74° | — | — |
| 2024 | 76° | 58° | 67° | — | — |
| 2023 | 90° | 66° | 78° | — | — |
| 2022 | 79° | 67° | 73° | — | — |
| 2021 | 82° | 71° | 77° | 1.83" | — |
| 2020 | 81° | 67° | 74° | 0.1" | — |
| 2019 | 88° | 72° | 80° | — | — |
| 2018 | 86° | 68° | 77° | 1.32" | — |
| 2017 | 92° | 71° | 81° | — | — |
| 2016 | 88° | 72° | 80° | — | — |
| 2015 | 85° | 72° | 78° | — | — |
| 2014 | 86° | 71° | 79° | — | — |
| 2013 | 80° | 68° | 74° | — | — |
| 2012 | 78° | 66° | 72° | 0.13" | — |
| 2011 | 88° | 69° | 78° | — | — |
| 2010 | 86° | 68° | 77° | — | — |
| 2009 | 90° | 73° | 81° | 0.51" | — |
| 2008 | 90° | 68° | 79° | — | — |
| 2007 | 99° | 74° | 86° | — | — |
| 2006 | 94° | 74° | 84° | — | — |
| 2005 | 95° | 74° | 84° | 1.42" | — |
| 2004 | 89° | 70° | 79° | — | — |
| 2003 | 85° | 69° | 77° | — | — |
| 2002 | 92° | 70° | 81° | — | — |
| 2001 | 87° | 66° | 77° | — | — |
| 2000coldest | 71° | 57° | 64° | — | — |
| 1999 | 80° | 67° | 73° | 3.58" | — |
| 1998 | 80° | 57° | 69° | — | — |
| 1997 | 88° | 67° | 77° | 0.91" | — |
| 1996 | 85° | 62° | 73° | — | — |
| 1995 | 87° | 62° | 75° | — | — |
| 1994 | 85° | 65° | 75° | — | — |
| 1993 | 91° | 67° | 79° | 0.05" | — |
| 1992 | 76° | 64° | 70° | — | — |
| 1991 | 83° | 60° | 71° | 0.13" | — |
| 1990 | 91° | 68° | 80° | — | — |
| 1989 | 85° | 72° | 78° | — | — |
| 1988 | 90° | 72° | 81° | 0.56" | — |
| 1987 | 90° | 70° | 80° | — | — |
| 1986 | 77° | 70° | 73° | 6.96" | — |
| 1985 | 86° | 68° | 77° | 0.25" | — |
| 1984 | 83° | 60° | 71° | — | — |
| 1983warmest | 103° | 76° | 89° | — | — |
| 1982 | 90° | 71° | 80° | — | — |
| 1981 | 75° | 55° | 65° | — | — |
| 1980 | 94° | 73° | 83° | — | — |
| 1979 | 96° | 69° | 83° | — | — |
| 1978 | 96° | 63° | 79° | 0.38" | — |
| 1977 | 84° | 64° | 74° | — | — |
| 1976 | 72° | 62° | 67° | 0.23" | — |
| 1975 | 91° | 67° | 79° | — | — |
| 1974 | 85° | 64° | 74° | — | — |
| 1973 | 86° | 63° | 74° | 0.1" | — |
| 1972 | 80° | 62° | 71° | — | — |
| 1971 | 90° | 72° | 81° | — | — |
55 years of data from CARY