Baton Rouge climate — normals and trends

Q: What is the climate of Baton Rouge?

Baton Rouge has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 1,287 mm of precipitation per year.

Q: What is the hottest day ever recorded in Baton Rouge?

The hottest day measured in Baton Rouge between 1940 and 2025 was 30 August 2000, reaching 41.6 °C.

Q: What is the coldest day in Baton Rouge?

The coldest day measured in Baton Rouge between 1940 and 2025 was 23 December 1989, at -12.9 °C.

Q: Does it snow in Baton Rouge?

Almost never: Baton Rouge sees virtually no snow, with about 13 frost days per year.

Q: Has the climate of Baton Rouge warmed?

Yes: Baton Rouge warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Baton Rouge?

The wettest day measured in Baton Rouge between 1940 and 2025 was 13 August 2016, with 315 mm of rain in 24 hours.

Q: What was the windiest day in Baton Rouge?

The windiest day measured in Baton Rouge between 1940 and 2025 was 1 September 2008, with winds reaching 71.3 km/h.

Q: What is the warmest month in Baton Rouge?

The warmest month in Baton Rouge is July (27.3 °C on average); the coldest is January (10.4 °C).

Q: How much does it rain in Baton Rouge?

Baton Rouge receives on average 1,287 mm of precipitation per year, spread over about 131 rainy days.

Q: Is it sunny in Baton Rouge?

Baton Rouge gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Baton Rouge (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.6 °C and it receives 1,287 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (27.3 °C on average) and the coldest is January (10.4 °C). Rainfall peaks in March.

Baton Rouge averages 13 frost days, 116 hot days (≥ 30 °C) and 131 rainy days per year.

Baton Rouge has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.6 °C (on 30 August 2000) and the coldest -12.9 °C (on 23 December 1989).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Baton RougeLouisiana

coords: 30.44°, -91.19°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthMarchDriest monthOctober

Mean daily temperature

19.6°C

Average daily high

25.1°C

Average daily low

14.9°C

Annual rainfall

1,287mm

Sunshine / day

9.4h

Mean relative humidity

76%

Average peak wind

14.7km/h

Seasonal range

16.9°C

Frost days (< 0 °C)

13 d/yr

Hot days (≥ 30 °C)

116 d/yr

Rainy days (≥ 1 mm)

131 d/yr

Annual snowfall

0.8 cm

Average feels-like high

26.6 °C

Average feels-like low

15.2 °C

Average peak gust

31.7 km/h

Tropical nights (≥ 20 °C)

133 d/yr

Solar radiation

16.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.3 °C

since 1940

+0.2 °C per decade · r² = 0.30 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

41.6 °C

30 August 2000

Coldest day

-12.9 °C

23 December 1989

Wettest day

315 mm

13 August 2016

Windiest day

71.3 km/h

1 September 2008

Strongest gust

159.1 km/h

1 September 2008

Hottest feels-like

46.1 °C

24 August 2023

Coldest feels-like

-19.7 °C

23 December 1989

Snowiest day

11.2 cm

11 December 2008

Sunniest day

13.9 h

12 June 1969

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.6 °C19 August 2025	-10.6 °C22 January 2025	20.9 °C	1,156 mm	153	17
2024	38.1 °C2 July 2024	-7.5 °C17 January 2024	21.3 °C	1,654 mm	142	9
2023	41.2 °C27 August 2023	-1.7 °C20 March 2023	22.0 °C	989 mm	154	3
2022	36.3 °C9 July 2022	-6.3 °C23 December 2022	20.3 °C	1,413 mm	141	21
2021	36.0 °C23 August 2021	-6.9 °C16 February 2021	20.2 °C	1,568 mm	105	9
2020	37.7 °C16 August 2020	-1.1 °C1 December 2020	20.9 °C	1,603 mm	115	5
2019	37.7 °C8 July 2019	-3.9 °C13 November 2019	20.8 °C	1,439 mm	146	6
2018	37.1 °C22 July 2018	-9.3 °C17 January 2018	20.5 °C	1,557 mm	143	18
2017	35.4 °C20 July 2017	-5.1 °C7 January 2017	20.9 °C	1,441 mm	117	7
2016	36.1 °C27 June 2016	-2.7 °C24 January 2016	20.7 °C	1,768 mm	136	10
2015	38.2 °C9 August 2015	-5.7 °C8 January 2015	20.6 °C	1,475 mm	124	10
2014	36.0 °C23 August 2014	-7.5 °C30 January 2014	19.1 °C	1,304 mm	130	23
2013	38.4 °C8 August 2013	-3.0 °C29 November 2013	19.8 °C	1,292 mm	128	8
2012	37.3 °C26 June 2012	-1.6 °C14 January 2012	20.9 °C	1,439 mm	126	8
2011	38.7 °C4 June 2011	-4.8 °C13 January 2011	20.5 °C	1,005 mm	140	18
2010	38.4 °C2 August 2010	-6.2 °C10 January 2010	19.5 °C	1,172 mm	146	25
2009	39.9 °C2 July 2009	-3.5 °C21 January 2009	20.2 °C	1,497 mm	124	10
2008	37.7 °C21 July 2008	-4.7 °C3 January 2008	20.0 °C	1,506 mm	119	8
2007	39.1 °C11 August 2007	-2.8 °C29 January 2007	20.3 °C	1,036 mm	136	8
2006	37.6 °C12 June 2006	-4.3 °C9 December 2006	20.8 °C	1,137 mm	145	10
2005	37.6 °C20 September 2005	-2.9 °C24 January 2005	20.3 °C	1,002 mm	145	8
2004	36.0 °C15 July 2004	-4.2 °C28 January 2004	19.9 °C	1,461 mm	123	18
2003	34.9 °C7 August 2003	-5.5 °C24 January 2003	19.4 °C	1,325 mm	114	15
2002	35.5 °C22 July 2002	-7.0 °C4 January 2002	19.6 °C	1,409 mm	121	11
2001	34.7 °C21 July 2001	-5.5 °C4 January 2001	19.5 °C	1,291 mm	95	17
2000	41.6 °C30 August 2000	-5.3 °C20 December 2000	20.1 °C	855 mm	136	14
1999	38.4 °C19 August 1999	-5.9 °C5 January 1999	20.3 °C	910 mm	131	11
1998	37.9 °C29 August 1998	-1.4 °C11 March 1998	20.5 °C	1,407 mm	133	3
1997	35.2 °C4 July 1997	-5.0 °C18 January 1997	19.2 °C	1,410 mm	109	11
1996	35.7 °C9 July 1996	-11.1 °C5 February 1996	19.3 °C	1,183 mm	118	26
1995	36.4 °C29 August 1995	-4.1 °C11 December 1995	19.8 °C	1,457 mm	123	13
1994	34.1 °C3 July 1994	-4.0 °C19 January 1994	19.6 °C	1,192 mm	95	9
1993	35.6 °C31 July 1993	-4.6 °C14 March 1993	19.0 °C	1,446 mm	114	7
1992	34.6 °C11 July 1992	-3.6 °C21 January 1992	19.0 °C	1,587 mm	86	6
1991	34.5 °C31 July 1991	-3.1 °C10 November 1991	19.7 °C	1,708 mm	103	10
1990	37.5 °C26 August 1990	-4.2 °C24 December 1990	20.1 °C	1,266 mm	124	8
1989	37.5 °C2 September 1989	-12.9 °C23 December 1989	19.1 °C	1,234 mm	107	21
1988	35.8 °C28 June 1988	-7.8 °C7 February 1988	18.9 °C	1,346 mm	99	24
1987	34.6 °C21 August 1987	-4.2 °C23 January 1987	18.8 °C	1,600 mm	97	14
1986	37.6 °C30 July 1986	-4.5 °C12 February 1986	19.7 °C	1,255 mm	125	11
1985	35.1 °C6 June 1985	-11.4 °C21 January 1985	19.3 °C	1,238 mm	112	27
1984	35.2 °C14 May 1984	-5.9 °C1 January 1984	19.3 °C	1,202 mm	96	18
1983	34.9 °C31 August 1983	-10.7 °C25 December 1983	18.2 °C	1,709 mm	81	13
1982	35.2 °C12 June 1982	-11.2 °C11 January 1982	19.8 °C	1,460 mm	116	14
1981	37.6 °C23 July 1981	-6.9 °C13 January 1981	19.5 °C	1,114 mm	125	15
1980	38.5 °C16 July 1980	-5.5 °C3 March 1980	19.2 °C	1,429 mm	119	16
1979	35.4 °C6 July 1979	-7.1 °C3 January 1979	18.5 °C	1,338 mm	91	26
1978	35.6 °C28 June 1978	-5.9 °C22 February 1978	18.8 °C	1,206 mm	124	31
1977	36.9 °C31 May 1977	-6.9 °C19 January 1977	19.3 °C	1,359 mm	110	21
1976	36.0 °C25 August 1976	-6.2 °C9 January 1976	18.6 °C	1,004 mm	102	20
1975	33.5 °C2 September 1975	-4.9 °C19 December 1975	19.3 °C	1,383 mm	86	13
1974	33.8 °C20 July 1974	-3.8 °C26 February 1974	19.7 °C	1,191 mm	92	9
1973	35.7 °C18 July 1973	-5.6 °C13 January 1973	19.6 °C	1,655 mm	109	18
1972	35.7 °C8 June 1972	-5.0 °C16 January 1972	19.8 °C	1,175 mm	128	14
1971	35.2 °C13 June 1971	-5.1 °C10 February 1971	19.7 °C	1,042 mm	107	11
1970	37.9 °C3 July 1970	-6.4 °C7 January 1970	19.3 °C	1,043 mm	134	22
1969	37.1 °C29 June 1969	-5.3 °C5 January 1969	19.2 °C	944 mm	127	10
1968	34.7 °C29 July 1968	-4.2 °C16 December 1968	18.7 °C	844 mm	124	24
1967	35.1 °C26 June 1967	-3.8 °C8 February 1967	19.4 °C	984 mm	96	14
1966	35.1 °C19 July 1966	-7.5 °C30 January 1966	18.7 °C	1,364 mm	85	17
1965	34.9 °C20 July 1965	-5.3 °C17 January 1965	19.5 °C	1,031 mm	106	15
1964	35.1 °C22 June 1964	-5.9 °C14 January 1964	19.1 °C	1,405 mm	108	15
1963	37.2 °C14 June 1963	-9.9 °C24 January 1963	19.3 °C	860 mm	146	30
1962	38.2 °C9 August 1962	-11.7 °C11 January 1962	19.4 °C	1,029 mm	139	15
1961	33.5 °C5 September 1961	-5.0 °C22 January 1961	18.6 °C	1,631 mm	89	16
1960	36.5 °C3 July 1960	-4.9 °C22 December 1960	18.7 °C	1,097 mm	116	24
1959	34.6 °C18 June 1959	-3.6 °C23 January 1959	19.2 °C	1,262 mm	125	15
1958	34.8 °C5 August 1958	-6.2 °C13 February 1958	18.7 °C	1,106 mm	108	18
1957	35.9 °C14 July 1957	-4.8 °C12 December 1957	19.9 °C	1,326 mm	109	7
1956	36.2 °C8 August 1956	-2.3 °C14 January 1956	19.8 °C	1,012 mm	112	8
1955	34.8 °C27 June 1955	-4.9 °C16 December 1955	19.8 °C	963 mm	134	16
1954	38.2 °C30 June 1954	-2.6 °C8 February 1954	19.9 °C	826 mm	130	9
1953	36.3 °C10 June 1953	-3.4 °C24 December 1953	19.8 °C	1,757 mm	118	7
1952	36.0 °C14 June 1952	-4.1 °C15 December 1952	19.5 °C	890 mm	126	4
1951	37.7 °C14 August 1951	-10.9 °C3 February 1951	19.8 °C	1,062 mm	127	19
1950	34.3 °C17 August 1950	-6.1 °C7 December 1950	19.7 °C	1,126 mm	94	6
1949	35.4 °C20 August 1949	-5.6 °C31 January 1949	19.9 °C	1,561 mm	105	8
1948	37.3 °C9 July 1948	-7.3 °C18 January 1948	19.5 °C	1,493 mm	112	16
1947	37.8 °C6 August 1947	-3.2 °C10 February 1947	19.2 °C	1,599 mm	104	6
1946	33.5 °C27 July 1946	-4.0 °C23 January 1946	19.9 °C	1,621 mm	72	2
1945	35.3 °C3 August 1945	-3.6 °C20 December 1945	20.1 °C	1,370 mm	114	2
1944	37.5 °C16 July 1944	-3.3 °C10 January 1944	20.3 °C	1,418 mm	118	3
1943	39.2 °C27 August 1943	-2.9 °C20 January 1943	19.5 °C	1,230 mm	113	9
1942	35.2 °C13 July 1942	-3.9 °C10 January 1942	19.2 °C	998 mm	98	9
1941	35.1 °C23 August 1941	-2.1 °C9 February 1941	18.9 °C	1,112 mm	91	3
1940	33.4 °C10 September 1940	-6.2 °C27 January 1940	18.4 °C	1,371 mm	61	18

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

26.6 °C

+1.5 °C

Hot days (≥ 30 °C)

153 d/yr

+37

Frost days (< 0 °C)

17 d/yr

Annual rainfall

1156 mm

-131 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	14.2 °C	-1.6 °C	109 mm	-11 mm
Feb	20.4 °C	+2.5 °C	122 mm	+11 mm
Mar	24.4 °C	+2.9 °C	101 mm	-24 mm
Apr	27.5 °C	+2.2 °C	92 mm	-23 mm
May	29.2 °C	+0.2 °C	161 mm	+52 mm
Jun	31.9 °C	+0.2 °C	117 mm	+17 mm
Jul	33.1 °C	+0.8 °C	139 mm	+15 mm
Aug	33.8 °C	+1.4 °C	72 mm	-42 mm
Sep	33.5 °C	+2.9 °C	29 mm	-68 mm
Oct	28.9 °C	+2.3 °C	118 mm	+49 mm
Nov	23.4 °C	+2.3 °C	25 mm	-68 mm
Dec	19.0 °C	+1.6 °C	73 mm	-39 mm

The year's extremes

Hottest day

36.6 °C

19 Aug 2025

Coldest day

-10.6 °C

22 Jan 2025

Wettest day

52.1 mm

23 Feb 2025

Windiest day

37.8 km/h

2 Apr 2025

Strongest gust

82.4 km/h

4 Mar 2025

Hottest feels-like

42.8 °C

30 Jul 2025

Coldest feels-like

-15.8 °C

22 Jan 2025

Snowiest day

6.3 cm

21 Jan 2025

Sunniest day

13.9 h

2 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Baton Rouge?

Baton Rouge has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 1,287 mm of precipitation per year.

What is the hottest day ever recorded in Baton Rouge?

The hottest day measured in Baton Rouge between 1940 and 2025 was 30 August 2000, reaching 41.6 °C.

What is the coldest day in Baton Rouge?

The coldest day measured in Baton Rouge between 1940 and 2025 was 23 December 1989, at -12.9 °C.

Does it snow in Baton Rouge?

Almost never: Baton Rouge sees virtually no snow, with about 13 frost days per year.

Has the climate of Baton Rouge warmed?

Yes: Baton Rouge warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Baton Rouge?

The wettest day measured in Baton Rouge between 1940 and 2025 was 13 August 2016, with 315 mm of rain in 24 hours.

What was the windiest day in Baton Rouge?

The windiest day measured in Baton Rouge between 1940 and 2025 was 1 September 2008, with winds reaching 71.3 km/h.

What is the warmest month in Baton Rouge?

The warmest month in Baton Rouge is July (27.3 °C on average); the coldest is January (10.4 °C).

How much does it rain in Baton Rouge?

Baton Rouge receives on average 1,287 mm of precipitation per year, spread over about 131 rainy days.

Is it sunny in Baton Rouge?

Baton Rouge gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

What is the biggest single-day snowfall in Baton Rouge?

The heaviest 24-hour snowfall measured in Baton Rouge between 1940 and 2025 was 11 December 2008, with 11.2 cm.

Are there tropical nights in Baton Rouge?

Yes: Baton Rouge has on average 133 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Baton Rouge?

In Baton Rouge, between 1940 and 2025, the highest apparent temperature reached 46.1 °C on 24 August 2023, and the lowest was -19.7 °C on 23 December 1989.

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