Climate Chart of Baton Rouge, USA

Climate overview

Temperature

The coolest monthly mean temperature occurs in January, at 11.0 °C; the highest monthly mean is shared by July / August, at 27.7 °C. These are averages for each month, not daytime highs or a forecast of conditions on a particular visit, so visitors should allow for day-to-day variation. Across the calendar months, the unweighted mean of monthly mean temperatures is 20.3 °C. It summarizes the monthly averages without implying that every month, or every day within a month, feels alike.

Rain

Mean daily rainfall is highest in August at 6.18 mm/day, and lowest in October at 2.77 mm/day. These daily averages help describe the contrast between the two months, but do not show how often rain falls or guarantee wet or dry conditions on a given day. The unweighted mean across monthly mean daily rainfall values is 4.16 mm/day. It is not a monthly accumulation, so it should not be read as the amount expected over an entire month.

Sunshine

Mean daily sunshine reaches its highest value in June, at 10.99 hours/day, and its lowest in December, at 6.35 hours/day. These averages can help set expectations for outdoor daylight planning, but sunshine duration is not the same as day length. The unweighted mean of the monthly daily-sunshine averages is 8.87 hours/day. Actual sunshine can vary from day to day, so the figure is a climate summary rather than a promise of clear skies.

Snow

Mean daily snowfall is highest in January, at 0.14 mm/day, and the unweighted mean across monthly values is 0.02 mm/day. These small average amounts do not establish how many snowy days occur, whether snow accumulates or remains on the ground, or whether conditions suit skiing.