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Baton Rouge, Louisiana climate
Cfa Humid subtropical
Baton Rouge has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 92°F, while the coldest is January averaging around 42°F at night. Precipitation is fairly even year-round, totalling about 62 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsBaton Rouge climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 62 | 67 | 73 | 79 | 86 | 91 | 92 | 92 | 89 | 81 | 71 | 64 |
| Avg temp (°F) | 52 | 56 | 62 | 68 | 76 | 81 | 83 | 83 | 79 | 70 | 59 | 54 |
| Avg low (°F) | 42 | 45 | 51 | 57 | 65 | 72 | 74 | 73 | 69 | 58 | 48 | 43 |
| Precipitation (in) | 6.4 | 4.4 | 4.5 | 5.1 | 5.2 | 6.5 | 5.1 | 6.4 | 4.4 | 4.8 | 3.9 | 5.3 |
| Snowfall (in) | — | — | — | — | — | — | — | — | — | — | — | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 62 | 67 | 73 | 79 | 86 | 91 |
| Avg temp (°F) | 52 | 56 | 62 | 68 | 76 | 81 |
| Avg low (°F) | 42 | 45 | 51 | 57 | 65 | 72 |
| Precipitation (in) | 6.4 | 4.4 | 4.5 | 5.1 | 5.2 | 6.5 |
| Snowfall (in) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 92 | 92 | 89 | 81 | 71 | 64 |
| Avg temp (°F) | 83 | 83 | 79 | 70 | 59 | 54 |
| Avg low (°F) | 74 | 73 | 69 | 58 | 48 | 43 |
| Precipitation (in) | 5.1 | 6.4 | 4.4 | 4.8 | 3.9 | 5.3 |
| Snowfall (in) | — | — | — | — | — | 0.2 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 9 | 8 | 8 | 12 | 13 | 12 | 9 | 7 | 8 | 10 |
| Days with high ≥ 90°F (days) | — | — | — | 0.3 | 8 | 20 | 25 | 25 | 16 | 3 | — | — |
| Days with low ≤ 32°F (days) | 7 | 3 | 0.8 | — | — | — | — | — | — | 0.0 | 2 | 5 |
| Days with snowfall ≥ 1 in (days) | — | — | — | — | — | — | — | — | — | — | — | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 9 | 8 | 8 | 12 |
| Days with high ≥ 90°F (days) | — | — | — | 0.3 | 8 | 20 |
| Days with low ≤ 32°F (days) | 7 | 3 | 0.8 | — | — | — |
| Days with snowfall ≥ 1 in (days) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 12 | 9 | 7 | 8 | 10 |
| Days with high ≥ 90°F (days) | 25 | 25 | 16 | 3 | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 0.0 | 2 | 5 |
| Days with snowfall ≥ 1 in (days) | — | — | — | — | — | 0.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 62 | 59 | 54 | 52 | 53 | 55 | 51 | 45 | 41 | 48 | 61 |
| Clear days (≤ 30% cloud) | 8 | 6 | 7 | 8 | 9 | 8 | 6 | 9 | 12 | 14 | 11 | 7 |
| Partly cloudy days (30–70%) | 9 | 8 | 10 | 11 | 12 | 13 | 15 | 14 | 10 | 9 | 9 | 10 |
| Cloudy days (≥ 70%) | 15 | 14 | 14 | 11 | 10 | 9 | 10 | 8 | 8 | 8 | 10 | 15 |
| Relative humidity (%) | 84 | 84 | 82 | 79 | 76 | 77 | 79 | 78 | 78 | 76 | 80 | 84 |
| Wind speed (mph) | 4.1 | 4.3 | 4.2 | 4.1 | 3.5 | 3.0 | 2.6 | 2.5 | 3.0 | 3.4 | 3.7 | 3.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 62 | 59 | 54 | 52 | 53 |
| Clear days (≤ 30% cloud) | 8 | 6 | 7 | 8 | 9 | 8 |
| Partly cloudy days (30–70%) | 9 | 8 | 10 | 11 | 12 | 13 |
| Cloudy days (≥ 70%) | 15 | 14 | 14 | 11 | 10 | 9 |
| Relative humidity (%) | 84 | 84 | 82 | 79 | 76 | 77 |
| Wind speed (mph) | 4.1 | 4.3 | 4.2 | 4.1 | 3.5 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 51 | 45 | 41 | 48 | 61 |
| Clear days (≤ 30% cloud) | 6 | 9 | 12 | 14 | 11 | 7 |
| Partly cloudy days (30–70%) | 15 | 14 | 10 | 9 | 9 | 10 |
| Cloudy days (≥ 70%) | 10 | 8 | 8 | 8 | 10 | 15 |
| Relative humidity (%) | 79 | 78 | 78 | 76 | 80 | 84 |
| Wind speed (mph) | 2.6 | 2.5 | 3.0 | 3.4 | 3.7 | 3.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Baton Rouge Metro AP (NOAA GHCN station USW00013970), about 11 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.