Weather on December 21
Baton Rouge, LA
55 Years of Data
Avg High
63°F
Avg Low
42°F
Warmest
1990
74°F avg
Coldest
1973
29°F avg
About This Date
December 21st in Baton Rouge, LA typically brings mild winter weather, with average highs around 63°F and lows near 42°F. Over 55 years of records, the warmest December 21st was in 1990 (74°F average), while the coldest was 1973 (29°F) — a 45°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 21st dates historically, with the wettest December 21st recording 7.34" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Baton Rouge, LA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 65° | 72° | 0.48" | — |
| 2024 | 56° | 35° | 45° | — | — |
| 2023 | 69° | 45° | 57° | — | — |
| 2022 | 50° | 47° | 48° | — | — |
| 2021 | 53° | 37° | 45° | — | — |
| 2020 | 68° | 40° | 54° | — | — |
| 2019 | 57° | 50° | 54° | 0.25" | — |
| 2018 | 51° | 44° | 48° | 0.84" | — |
| 2017 | 77° | 48° | 63° | 0.08" | — |
| 2016 | 60° | 30° | 45° | — | — |
| 2015 | 67° | 38° | 52° | — | — |
| 2014 | 50° | 46° | 48° | — | — |
| 2013 | 77° | 64° | 71° | — | — |
| 2012 | 58° | 34° | 46° | — | — |
| 2011 | 74° | 53° | 63° | 2.13" | — |
| 2010 | 64° | 34° | 49° | — | — |
| 2009 | 59° | 33° | 46° | — | — |
| 2008 | 76° | 54° | 65° | 0.36" | — |
| 2007 | 70° | 59° | 64° | — | — |
| 2006 | 68° | 62° | 65° | 1.65" | — |
| 2005 | 55° | 33° | 44° | — | — |
| 2004 | 60° | 32° | 46° | — | — |
| 2003 | 61° | 29° | 45° | — | — |
| 2002 | 60° | 33° | 47° | — | — |
| 2001 | 62° | 32° | 47° | — | — |
| 2000 | 54° | 25° | 39° | 0.25" | — |
| 1999 | 57° | 44° | 51° | 5.72" | — |
| 1998 | 78° | 59° | 69° | 0.05" | — |
| 1997 | 78° | 53° | 66° | 2.97" | — |
| 1996 | 48° | 24° | 36° | — | — |
| 1995 | 43° | 35° | 39° | — | — |
| 1994 | 67° | 46° | 56° | — | — |
| 1993 | 66° | 37° | 52° | — | — |
| 1992 | 68° | 58° | 63° | 0.18" | — |
| 1991 | 64° | 43° | 53° | — | — |
| 1990warmest | 78° | 69° | 74° | — | — |
| 1989 | 39° | 33° | 36° | 0.03" | — |
| 1988 | 75° | 50° | 63° | — | — |
| 1987 | 65° | 54° | 59° | 1.47" | — |
| 1986 | 63° | 41° | 52° | — | — |
| 1985 | 54° | 29° | 41° | — | — |
| 1984 | 78° | 57° | 68° | — | — |
| 1983 | 55° | 35° | 45° | — | — |
| 1982 | 68° | 31° | 49° | — | — |
| 1981 | 58° | 32° | 45° | 0.15" | — |
| 1980 | 37° | 27° | 32° | — | — |
| 1979 | 70° | 49° | 59° | — | — |
| 1978 | 78° | 49° | 63° | 0.25" | — |
| 1977 | 56° | 36° | 46° | — | — |
| 1976 | 62° | 29° | 45° | — | — |
| 1975 | 51° | 32° | 42° | — | — |
| 1974 | 65° | 31° | 48° | — | — |
| 1973coldest | 37° | 22° | 29° | — | — |
| 1972 | 73° | 54° | 63° | 7.34" | — |
| 1971 | 75° | 57° | 66° | — | — |
55 years of data from LSU BEN-HUR FARM