Weather on May 15
Baton Rouge, LA
55 Years of Data
About This Date
May 15th in Baton Rouge, LA typically brings warm spring weather, with average highs around 85°F and lows near 64°F. Over 56 years of records, the warmest May 15th was in 2025 (83°F average), while the coldest was 2011 (62°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 18% of May 15th dates historically, with the wettest May 15th recording 4.59" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Baton Rouge, LA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 89° | 65° | 77° | — | — |
| 2025warmest | 91° | 76° | 83° | — | — |
| 2024 | 89° | 65° | 77° | — | — |
| 2023 | 94° | 71° | 82° | 0.01" | — |
| 2022 | 88° | 67° | 77° | 0.06" | — |
| 2021 | 82° | 58° | 70° | — | — |
| 2020 | 84° | 68° | 76° | — | — |
| 2019 | 87° | 61° | 74° | — | — |
| 2018 | 92° | 70° | 81° | 0.07" | — |
| 2017 | 83° | 61° | 72° | — | — |
| 2016 | 89° | 60° | 75° | — | — |
| 2015 | 86° | 71° | 79° | 0.01" | — |
| 2014 | 75° | 51° | 63° | — | — |
| 2013 | 82° | 58° | 70° | — | — |
| 2012 | 82° | 59° | 71° | — | — |
| 2011coldest | 74° | 51° | 62° | — | — |
| 2010 | 90° | 72° | 81° | — | — |
| 2009 | 88° | 69° | 78° | — | — |
| 2008 | 83° | 69° | 76° | 4.59" | — |
| 2007 | 90° | 69° | 79° | — | — |
| 2006 | 80° | 60° | 70° | — | — |
| 2005 | 85° | 65° | 75° | — | — |
| 2004 | 84° | 67° | 75° | 1.78" | — |
| 2003 | 89° | 71° | 80° | — | — |
| 2002 | 82° | 55° | 69° | — | — |
| 2001 | 89° | 63° | 76° | — | — |
| 2000 | 85° | 60° | 72° | — | — |
| 1999 | 86° | 64° | 75° | — | — |
| 1998 | 87° | 72° | 79° | — | — |
| 1997 | 86° | 68° | 77° | — | — |
| 1996 | 86° | 65° | 75° | — | — |
| 1995 | 90° | 71° | 80° | — | — |
| 1994 | 85° | 67° | 76° | — | — |
| 1993 | 83° | 56° | 69° | — | — |
| 1992 | 90° | 62° | 76° | — | — |
| 1991 | 88° | 69° | 78° | — | — |
| 1990 | 86° | 72° | 79° | — | — |
| 1989 | 84° | 62° | 73° | — | — |
| 1988 | 90° | 63° | 76° | — | — |
| 1987 | 89° | 65° | 77° | 0.03" | — |
| 1986 | 90° | 69° | 79° | — | — |
| 1985 | 89° | 69° | 79° | — | — |
| 1984 | 92° | 68° | 80° | — | — |
| 1983 | 87° | 72° | 79° | — | — |
| 1982 | 82° | 64° | 73° | 0.01" | — |
| 1981 | 83° | 56° | 69° | — | — |
| 1980 | 82° | 70° | 76° | 0.34" | — |
| 1979 | 80° | 55° | 68° | — | — |
| 1978 | 83° | 60° | 71° | — | — |
| 1977 | 82° | 57° | 70° | — | — |
| 1976 | 80° | 54° | 67° | — | — |
| 1975 | 77° | 65° | 71° | 0.1" | — |
| 1974 | 87° | 70° | 78° | — | — |
| 1973 | 79° | 58° | 68° | — | — |
| 1972 | 82° | 63° | 72° | — | — |
| 1971 | 77° | 54° | 65° | — | — |
Baton Rouge, LA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Baton Rouge, LA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Baton Rouge, LA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Baton Rouge, LA
Most pleasant months in Baton Rouge, LA: February, March, April, October, November.
What to expect on May 15th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
May 15th outlook →