Weather on May 21
Baton Rouge, LA
55 Years of Data
Avg High
86°F
Avg Low
66°F
Warmest
1990
82°F avg
Coldest
1981
56°F avg
About This Date
May 21st in Baton Rouge, LA typically brings warm spring weather, with average highs around 86°F and lows near 66°F. Over 55 years of records, the warmest May 21st was in 1990 (82°F average), while the coldest was 1981 (56°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 29% of May 21st dates historically, with the wettest May 21st recording 2.54" 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 May 21st in Baton Rouge, LA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 63° | 71° | 0.86" | — |
| 2024 | 92° | 71° | 81° | — | — |
| 2023 | 83° | 70° | 76° | — | — |
| 2022 | 95° | 70° | 82° | 0.41" | — |
| 2021 | 81° | 69° | 75° | 0.33" | — |
| 2020 | 91° | 68° | 80° | — | — |
| 2019 | 90° | 75° | 82° | — | — |
| 2018 | 91° | 68° | 80° | — | — |
| 2017 | 86° | 70° | 78° | 2.54" | — |
| 2016 | 85° | 68° | 76° | 0.03" | — |
| 2015 | 86° | 71° | 79° | 0.03" | — |
| 2014 | 86° | 66° | 76° | — | — |
| 2013 | 88° | 70° | 79° | — | — |
| 2012 | 88° | 65° | 76° | — | — |
| 2011 | 91° | 73° | 82° | — | — |
| 2010 | 88° | 72° | 80° | — | — |
| 2009 | 85° | 64° | 74° | — | — |
| 2008 | 90° | 70° | 80° | — | — |
| 2007 | 85° | 59° | 72° | — | — |
| 2006 | 87° | 58° | 72° | — | — |
| 2005 | 91° | 72° | 81° | — | — |
| 2004 | 88° | 67° | 77° | 1.17" | — |
| 2003 | 91° | 73° | 82° | 0.99" | — |
| 2002 | 78° | 52° | 65° | — | — |
| 2001 | 90° | 73° | 81° | — | — |
| 2000 | 85° | 68° | 76° | 0.03" | — |
| 1999 | 89° | 64° | 77° | — | — |
| 1998 | 90° | 67° | 78° | — | — |
| 1997 | 87° | 69° | 78° | — | — |
| 1996 | 90° | 65° | 77° | — | — |
| 1995 | 80° | 56° | 68° | — | — |
| 1994 | 81° | 56° | 68° | — | — |
| 1993 | 82° | 57° | 70° | — | — |
| 1992 | 87° | 61° | 74° | — | — |
| 1991 | 83° | 69° | 76° | 1.57" | — |
| 1990warmest | 89° | 75° | 82° | — | — |
| 1989 | 88° | 69° | 78° | 0.13" | — |
| 1988 | 91° | 62° | 77° | 0.28" | — |
| 1987 | 89° | 69° | 79° | — | — |
| 1986 | 79° | 53° | 66° | — | — |
| 1985 | 89° | 65° | 77° | — | — |
| 1984 | 76° | 66° | 71° | 2.46" | — |
| 1983 | 77° | 66° | 72° | 2.49" | — |
| 1982 | 87° | 63° | 75° | — | — |
| 1981coldest | 68° | 45° | 56° | — | — |
| 1980 | 84° | 66° | 75° | — | — |
| 1979 | 86° | 67° | 76° | — | — |
| 1978 | 92° | 69° | 80° | 1.17" | — |
| 1977 | 87° | 62° | 75° | — | — |
| 1976 | 81° | 58° | 69° | — | — |
| 1975 | 89° | 62° | 76° | — | — |
| 1974 | 86° | 70° | 78° | 1.45" | — |
| 1973 | 88° | 69° | 78° | — | — |
| 1972 | 91° | 61° | 76° | — | — |
| 1971 | 84° | 64° | 74° | — | — |
55 years of data from LSU BEN-HUR FARM