Climateby Month

Baton Rouge, LA climate by month

NOAA 1991-2020 normals · 46 ft elevation

Baton Rouge has hot and oppressively humid summers and cool winters. Highs peak at 92°F in August and fall to 62°F in January. Wet days are spread through the year, from about 7 to 13 a month. Snow is rare. By our comfort score the best months are March, April and November.

Warmest month
92°F
August normal high
Coldest month
42°F
January normal low
Wet days a year
114
61.9 in of precipitation
Muggy days a year
171
dew point 65°F or higher

How warm is Baton Rouge?

Normal highs range from 62°F in January to 92°F in August.

40°50°60°70°80°90°100° January: normal high 62°F (17°C), low 42°F (6°C) 62° 42° February: normal high 67°F (19°C), low 45°F (7°C) March: normal high 73°F (23°C), low 51°F (11°C) April: normal high 79°F (26°C), low 57°F (14°C) May: normal high 86°F (30°C), low 65°F (18°C) June: normal high 91°F (33°C), low 72°F (22°C) July: normal high 92°F (33°C), low 74°F (23°C) 92° 74° August: normal high 92°F (33°C), low 73°F (23°C) September: normal high 89°F (32°C), low 69°F (21°C) October: normal high 81°F (27°C), low 58°F (14°C) November: normal high 71°F (22°C), low 48°F (9°C) December: normal high 64°F (18°C), low 43°F (6°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Baton Rouge?

July has the most wet days (about 13); the year brings about 62 in of precipitation.

January: 10 wet days February: 9 wet days March: 9 wet days April: 8 wet days May: 8 wet days June: 12 wet days July: 13 wet days 13 August: 12 wet days September: 9 wet days October: 7 wet days 7 November: 8 wet days December: 10 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is Baton Rouge?

Muggy days peak in July, at about 31 days.

January: 2 muggy days 2 February: 2 muggy days March: 4 muggy days April: 9 muggy days May: 21 muggy days June: 28 muggy days July: 31 muggy days 31 August: 30 muggy days September: 25 muggy days October: 12 muggy days November: 4 muggy days December: 2 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Lafayette Regional Airport, 53 mi WSW of the city center (the nearest airport with complete hourly records).

How much daylight?

Daylight ranges from about 10.2 hours in December to 14.1 hours in June.

January: 10.4 hours of daylight February: 11.1 hours of daylight March: 12.0 hours of daylight April: 12.9 hours of daylight May: 13.7 hours of daylight June: 14.1 hours of daylight 14.1 July: 13.9 hours of daylight August: 13.2 hours of daylight September: 12.3 hours of daylight October: 11.4 hours of daylight November: 10.6 hours of daylight December: 10.2 hours of daylight 10.2 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Baton Rouge, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 62°F42°F 6.4 in10 0.0 in 2 10.4 h
February 67°F45°F 4.4 in9 0.0 in 2 11.1 h
March 73°F51°F 4.5 in9 0.0 in 4 12.0 h
April 79°F57°F 5.1 in8 0.0 in 9 12.9 h
May 86°F65°F 5.2 in8 0.0 in 21 13.7 h
June 91°F72°F 6.5 in12 0.0 in 28 14.1 h
July 92°F74°F 5.1 in13 0.0 in 31 13.9 h
August 92°F73°F 6.4 in12 0.0 in 30 13.2 h
September 89°F69°F 4.4 in9 0.0 in 25 12.3 h
October 81°F58°F 4.8 in7 0.0 in 12 11.4 h
November 71°F48°F 3.9 in8 0.0 in 4 10.6 h
December 64°F43°F 5.3 in10 0.2 in 2 10.2 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Baton Rouge

By our comfort score, the best months are March, April and November.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 561071
Feb 611260
Mar 661460
Apr 641050
May 50368
Jun 380820
Jul 340925
Aug 330825
Sep 391616
Oct 57953
Nov 641550
Dec 551070

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Baton Rouge

The last spring frost typically comes around Feb 25, and the first fall frost around Nov 26, leaving 276 frost-free days in a typical year.

Frost and freeze dates for Baton Rouge
Typical date1 year in 10
Last spring frost (32°F)Feb 25after Mar 19
First fall frost (32°F)Nov 26before Nov 7
Last hard freeze (28°F)Feb 6after Mar 8
First hard freeze (28°F)Dec 11before Nov 19
Frost-free season276 daysunder 245 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Baton Rouge Ryan Airport (USW00013970), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Louisiana.

Hottest and coldest readings, 1991-2020

The highest reading was 105°F (August 30, 2000); the lowest was 14°F (January 17, 2018).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Baton Rouge

Similar climates elsewhere

Where the numbers come from

  • Temperature, rain and frost dates: Baton Rouge Ryan Airport (USW00013970), 6.0 mi N of the city center, 64 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Baton Rouge Sherwood (USC00160558), 6.4 mi E of the city center, 55 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Lafayette Rgnl Airport (USW00013976), 53 mi WSW of the city center, 38 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Lafayette Regional Airport (722405-13976), 53 mi WSW of the city center, 35 ft . Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error