Weather on August 21
Baton Rouge, LA
55 Years of Data
About This Date
August 21st in Baton Rouge, LA typically brings hot summer weather, with average highs around 92°F and lows near 72°F. Over 55 years of records, the warmest August 21st was in 2023 (90°F average), while the coldest was 1992 (75°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 47% of August 21st dates historically, with the wettest August 21st recording 9.04" 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 Baton Rouge, LA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 73° | 86° | 1.17" | — |
| 2024 | 96° | 71° | 84° | — | — |
| 2023warmest | 102° | 79° | 90° | — | — |
| 2022 | 92° | 75° | 83° | 1.55" | — |
| 2021 | 92° | 71° | 81° | — | — |
| 2020 | 90° | 69° | 79° | — | — |
| 2019 | 92° | 73° | 82° | 9.04" | — |
| 2018 | 89° | 76° | 82° | — | — |
| 2017 | 93° | 73° | 83° | 0.03" | — |
| 2016 | 90° | 74° | 82° | — | — |
| 2015 | 88° | 72° | 80° | 0.03" | — |
| 2014 | 93° | 73° | 83° | 0.1" | — |
| 2013 | 93° | 72° | 82° | 1.55" | — |
| 2012 | 86° | 68° | 77° | — | — |
| 2011 | 92° | 73° | 82° | — | — |
| 2010 | 90° | 76° | 83° | 0.97" | — |
| 2009 | 85° | 75° | 80° | 0.28" | — |
| 2008 | 87° | 71° | 79° | — | — |
| 2007 | 93° | 75° | 84° | — | — |
| 2006 | 96° | 75° | 86° | — | — |
| 2005 | 98° | 79° | 88° | 0.2" | — |
| 2004 | 88° | 72° | 80° | 1.35" | — |
| 2003 | 94° | 71° | 82° | 0.13" | — |
| 2002 | 93° | 72° | 82° | 3" | — |
| 2001 | 94° | 72° | 83° | — | — |
| 2000 | 97° | 73° | 85° | — | — |
| 1999 | 97° | 75° | 86° | 0.05" | — |
| 1998 | 92° | 75° | 83° | — | — |
| 1997 | 95° | 71° | 83° | 5.08" | — |
| 1996 | 92° | 72° | 82° | 0.05" | — |
| 1995 | 97° | 73° | 85° | 0.23" | — |
| 1994 | 91° | 73° | 82° | 0.89" | — |
| 1993 | 96° | 71° | 84° | 0.99" | — |
| 1992coldest | 85° | 66° | 75° | — | — |
| 1991 | 95° | 68° | 82° | — | — |
| 1990 | 95° | 71° | 83° | 0.13" | — |
| 1989 | 93° | 70° | 81° | — | — |
| 1988 | 94° | 76° | 85° | — | — |
| 1987 | 94° | 72° | 83° | — | — |
| 1986 | 90° | 67° | 78° | — | — |
| 1985 | 88° | 73° | 80° | 1.42" | — |
| 1984 | 87° | 70° | 78° | 0.05" | — |
| 1983 | 94° | 73° | 83° | — | — |
| 1982 | 91° | 68° | 80° | — | — |
| 1981 | 90° | 68° | 79° | — | — |
| 1980 | 94° | 75° | 84° | — | — |
| 1979 | 93° | 72° | 82° | 0.1" | — |
| 1978 | 92° | 69° | 80° | 0.08" | — |
| 1977 | 86° | 73° | 80° | 0.05" | — |
| 1976 | 89° | 65° | 77° | — | — |
| 1975 | 94° | 71° | 82° | 0.15" | — |
| 1974 | 94° | 67° | 80° | — | — |
| 1973 | 89° | 68° | 79° | — | — |
| 1972 | 95° | 74° | 84° | — | — |
| 1971 | 91° | 71° | 81° | — | — |