Weather on December 31
Baton Rouge, LA
55 Years of Data
Avg High
64°F
Avg Low
44°F
Warmest
2021
78°F avg
Coldest
1983
23°F avg
About This Date
December 31st 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 31st was in 2021 (78°F average), while the coldest was 1983 (23°F) — a 55°F range across recorded history. Rain or other precipitation has occurred on about 40% of December 31st dates historically, with the wettest December 31st recording 9.55" of rain. The last decade has been 5.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.5°F warmer on this date compared to 20-30 years ago.
Planning for December 31st in Baton Rouge, LA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 29° | 45° | — | — |
| 2024 | 78° | 51° | 65° | — | — |
| 2023 | 71° | 31° | 51° | — | — |
| 2022 | 73° | 56° | 64° | — | — |
| 2021warmest | 84° | 72° | 78° | — | — |
| 2020 | 76° | 61° | 68° | 1.09" | — |
| 2019 | 62° | 36° | 49° | — | — |
| 2018 | 71° | 50° | 61° | — | — |
| 2017 | 59° | 48° | 54° | 0.28" | — |
| 2016 | 54° | 43° | 48° | — | — |
| 2015 | 56° | 50° | 53° | 1.02" | — |
| 2014 | 49° | 34° | 41° | — | — |
| 2013 | 52° | 39° | 45° | — | — |
| 2012 | 53° | 29° | 41° | — | — |
| 2011 | 72° | 48° | 60° | 0.03" | — |
| 2010 | 72° | 54° | 63° | — | — |
| 2009 | 55° | 47° | 51° | 3.96" | — |
| 2008 | 67° | 37° | 52° | — | — |
| 2007 | 70° | 36° | 53° | — | — |
| 2006 | 69° | 53° | 61° | 9.55" | — |
| 2005 | 75° | 54° | 64° | — | — |
| 2004 | 73° | 52° | 62° | — | — |
| 2003 | 60° | 33° | 47° | — | — |
| 2002 | 69° | 51° | 60° | 2.41" | — |
| 2001 | 54° | 34° | 44° | 0.05" | — |
| 2000 | 42° | 24° | 33° | — | — |
| 1999 | 74° | 40° | 57° | — | — |
| 1998 | 57° | 35° | 46° | — | — |
| 1997 | 62° | 40° | 51° | — | — |
| 1996 | 70° | 58° | 64° | 0.05" | — |
| 1995 | 63° | 42° | 52° | 0.79" | — |
| 1994 | 58° | 49° | 53° | — | — |
| 1993 | 50° | 27° | 38° | — | — |
| 1992 | 72° | 55° | 63° | — | — |
| 1991 | 62° | 40° | 51° | — | — |
| 1990 | 79° | 41° | 60° | 0.08" | — |
| 1989 | 70° | 57° | 63° | 3.86" | — |
| 1988 | 74° | 56° | 65° | 0.38" | — |
| 1987 | 56° | 37° | 46° | 0.1" | — |
| 1986 | 55° | 41° | 48° | — | — |
| 1985 | 67° | 40° | 53° | — | — |
| 1984 | 82° | 65° | 73° | — | — |
| 1983coldest | 34° | 12° | 23° | — | — |
| 1982 | 56° | 38° | 47° | — | — |
| 1981 | 56° | 44° | 50° | 2.08" | — |
| 1980 | 57° | 24° | 41° | — | — |
| 1979 | 49° | 36° | 42° | 0.13" | — |
| 1978 | 70° | 56° | 63° | 0.05" | — |
| 1977 | 58° | 49° | 53° | 0.15" | — |
| 1976 | 70° | 34° | 52° | — | — |
| 1975 | 49° | 36° | 42° | 0.23" | — |
| 1974 | 78° | 59° | 69° | — | — |
| 1973 | 76° | 60° | 68° | 0.08" | — |
| 1972 | 73° | 46° | 60° | 5.36" | — |
| 1971 | 81° | 63° | 72° | 0.05" | — |
55 years of data from LSU BEN-HUR FARM