Weather on December 15
Baton Rouge, LA
55 Years of Data
Avg High
64°F
Avg Low
44°F
Warmest
2021
71°F avg
Coldest
1985
33°F avg
About This Date
December 15th in Baton Rouge, LA typically brings mild winter weather, with average highs around 64°F and lows near 44°F. Over 55 years of records, the warmest December 15th was in 2021 (71°F average), while the coldest was 1985 (33°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 35% of December 15th dates historically, with the wettest December 15th recording 5" of rain. The last decade has been 7.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.3°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in Baton Rouge, LA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 50° | 25° | 37° | — | — |
| 2024 | 81° | 58° | 69° | — | — |
| 2023 | 72° | 50° | 61° | — | — |
| 2022 | 62° | 42° | 52° | — | — |
| 2021warmest | 77° | 64° | 71° | — | — |
| 2020 | 49° | 43° | 46° | 1.78" | — |
| 2019 | 80° | 54° | 67° | — | — |
| 2018 | 54° | 48° | 51° | — | — |
| 2017 | 63° | 37° | 50° | — | — |
| 2016 | 57° | 42° | 50° | — | — |
| 2015 | 72° | 44° | 58° | — | — |
| 2014 | 71° | 42° | 57° | — | — |
| 2013 | 67° | 42° | 54° | 0.1" | — |
| 2012 | 67° | 35° | 51° | — | — |
| 2011 | 72° | 55° | 63° | 0.05" | — |
| 2010 | 52° | 28° | 40° | — | — |
| 2009 | 71° | 61° | 66° | 3.07" | — |
| 2008 | 73° | 62° | 68° | — | — |
| 2007 | 81° | 44° | 62° | 0.69" | — |
| 2006 | 70° | 49° | 59° | 0.03" | — |
| 2005 | 75° | 51° | 63° | 5" | — |
| 2004 | 48° | 27° | 37° | — | — |
| 2003 | 54° | 31° | 42° | — | — |
| 2002 | 59° | 32° | 46° | — | — |
| 2001 | 64° | 44° | 54° | — | — |
| 2000 | 46° | 38° | 42° | — | — |
| 1999 | 65° | 41° | 53° | — | — |
| 1998 | 61° | 35° | 48° | — | — |
| 1997 | 43° | 25° | 34° | — | — |
| 1996 | 70° | 55° | 62° | — | — |
| 1995 | 79° | 54° | 66° | — | — |
| 1994 | 60° | 45° | 52° | — | — |
| 1993 | 55° | 36° | 45° | — | — |
| 1992 | 71° | 52° | 61° | — | — |
| 1991 | 63° | 37° | 50° | — | — |
| 1990 | 76° | 54° | 65° | — | — |
| 1989 | 57° | 31° | 44° | 0.15" | — |
| 1988 | 63° | 39° | 51° | — | — |
| 1987 | 81° | 38° | 59° | 0.23" | — |
| 1986 | 61° | 41° | 51° | 0.89" | — |
| 1985coldest | 43° | 24° | 33° | — | — |
| 1984 | 81° | 60° | 70° | — | — |
| 1983 | 53° | 35° | 44° | — | — |
| 1982 | 64° | 58° | 61° | 1.09" | — |
| 1981 | 54° | 36° | 45° | 0.1" | — |
| 1980 | 67° | 32° | 49° | 0.13" | — |
| 1979 | 54° | 40° | 47° | 0.51" | — |
| 1978 | 53° | 42° | 48° | — | — |
| 1977 | 62° | 41° | 52° | — | — |
| 1976 | 53° | 43° | 48° | 2.67" | — |
| 1975 | 77° | 61° | 69° | — | — |
| 1974 | 69° | 45° | 57° | 2.03" | — |
| 1973 | 66° | 46° | 56° | 0.13" | — |
| 1972 | 58° | 42° | 50° | 1.32" | — |
| 1971 | 80° | 58° | 69° | 0.41" | — |
55 years of data from LSU BEN-HUR FARM