Weather on December 18
Baton Rouge, LA
55 Years of Data
Avg High
62°F
Avg Low
40°F
Warmest
1990
72°F avg
Coldest
1979
32°F avg
About This Date
December 18th in Baton Rouge, LA typically brings mild winter weather, with average highs around 62°F and lows near 40°F. Over 55 years of records, the warmest December 18th was in 1990 (72°F average), while the coldest was 1979 (32°F) — a 40°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 18th dates historically, with the wettest December 18th recording 12.5" of rain. The last decade has been 8.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.2°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Baton Rouge, LA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 54° | 68° | 0.03" | — |
| 2024 | 78° | 53° | 66° | — | — |
| 2023 | 71° | 39° | 55° | — | — |
| 2022 | 56° | 30° | 43° | — | — |
| 2021 | 79° | 61° | 70° | 4.22" | — |
| 2020 | 60° | 30° | 45° | — | — |
| 2019 | 56° | 32° | 44° | — | — |
| 2018 | 59° | 38° | 48° | 0.03" | — |
| 2017 | 65° | 61° | 63° | 0.94" | — |
| 2016 | 79° | 46° | 62° | 0.81" | — |
| 2015 | 60° | 38° | 49° | — | — |
| 2014 | 60° | 36° | 48° | — | — |
| 2013 | 65° | 31° | 48° | — | — |
| 2012 | 68° | 41° | 55° | 0.03" | — |
| 2011 | 61° | 35° | 48° | — | — |
| 2010 | 52° | 42° | 47° | — | — |
| 2009 | 49° | 44° | 46° | 8" | — |
| 2008 | 78° | 60° | 69° | 0.03" | — |
| 2007 | 64° | 42° | 53° | — | — |
| 2006 | 75° | 48° | 62° | — | — |
| 2005 | 45° | 36° | 40° | 0.86" | — |
| 2004 | 61° | 34° | 47° | — | — |
| 2003 | 54° | 33° | 43° | — | — |
| 2002 | 75° | 54° | 64° | — | — |
| 2001 | 67° | 40° | 53° | 0.03" | — |
| 2000 | 43° | 26° | 34° | — | — |
| 1999 | 70° | 44° | 57° | 1.6" | — |
| 1998 | 60° | 32° | 46° | — | — |
| 1997 | 73° | 35° | 54° | — | — |
| 1996 | 51° | 38° | 44° | 0.03" | — |
| 1995 | 75° | 58° | 66° | 12.5" | — |
| 1994 | 62° | 47° | 54° | 0.03" | — |
| 1993 | 59° | 41° | 50° | — | — |
| 1992 | 60° | 42° | 51° | — | — |
| 1991 | 69° | 35° | 52° | — | — |
| 1990warmest | 76° | 69° | 72° | — | — |
| 1989 | 37° | 32° | 35° | 0.46" | — |
| 1988 | 54° | 25° | 39° | — | — |
| 1987 | 53° | 34° | 43° | — | — |
| 1986 | 65° | 55° | 60° | — | — |
| 1985 | 60° | 32° | 46° | — | — |
| 1984 | 74° | 50° | 62° | — | — |
| 1983 | 57° | 44° | 51° | — | — |
| 1982 | 60° | 32° | 46° | — | — |
| 1981 | 63° | 32° | 47° | 0.46" | — |
| 1980 | 57° | 31° | 44° | — | — |
| 1979coldest | 42° | 22° | 32° | — | — |
| 1978 | 58° | 33° | 45° | — | — |
| 1977 | 72° | 35° | 53° | — | — |
| 1976 | 67° | 34° | 50° | — | — |
| 1975 | 52° | 31° | 41° | — | — |
| 1974 | 57° | 29° | 43° | — | — |
| 1973 | 49° | 29° | 39° | — | — |
| 1972 | 65° | 30° | 47° | — | — |
| 1971 | 71° | 41° | 56° | 0.28" | — |
55 years of data from LSU BEN-HUR FARM