Climate averages 1991–2020

Baton Rouge weather
in April.

A warm, wet month: the 7th warmest and the joint 6th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 25.0°C Daytime mean, April
Average low 15.2°C Night-time mean, April
Rainfall 115 mm 9 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Baton Rouge · average highYear overview

April is a warm month in Baton Rouge: daytime highs average 25.0°C and nights cool to about 15.2°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 115 mm of rain on roughly 9 days, which makes April a wet month (the joint 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 54 min on an average April day.

The nearest other city in this atlas is Lafayette (Louisiana), United States (84 km away). In April its highs average 24.9°C, about as warm as Baton Rouge, with 109 mm of rain.

Among the 498 cities listed in the United States, Baton Rouge ranks joint 73rd of 498 for the warmest April highs and joint 441st of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Baton Rouge is 5.6°C warmer than that mean.

From April to May, average highs rise by 4.0°C to 28.9°C, and monthly rainfall falls from 115 mm to 105 mm.

The annual picture

April in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 05101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Baton Rouge climate table

1991–2020
Monthly climate averages for Baton Rouge, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 15.9°C6.9°C6.9°C1249.410.410 h
February 18.1°C8.7°C8.7°C1158.911.111 h
March 21.4°C11.7°C11.7°C1189.812.012 h
April, selected 25.0°C15.2°C15.2°C1158.812.913 h
May 28.9°C19.5°C19.5°C1059.513.714 h
June 31.3°C22.9°C22.9°C12013.614.114 h
July 31.9°C24.1°C24.1°C13217.013.914 h
August 32.0°C24.0°C24.0°C13315.713.213 h
September 30.1°C21.8°C21.8°C10010.712.412 h
October 26.2°C16.7°C16.7°C867.611.511 h
November 20.8°C11.3°C11.3°C897.710.611 h
December 17.1°C8.1°C8.1°C1129.310.210 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

April in nearby cities

Distance from Baton Rouge

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Baton Rouge) is explained once on the Baton Rouge year overview and on the Sources, method and limits page.