Donaldsonville Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Donaldsonville, Louisiana. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Donaldsonville?

In Donaldsonville, June has the greatest precipitation of any month. On average, Donaldsonville gets 7.0 inches of precipitation in June.

However, July is the month with the greatest chance of precipitation. 43.2% of days in July will have at least some rain.

What's the Driest Month in Donaldsonville?

In Donaldsonville, March has the least precipitation of any month. On average, Donaldsonville gets 4.00 inches of precipitation in March.

October is the month with the lowest chance of precipitation. 21.7% of days in October will have measurable rain.

Month	Precipitation	% Chance
January	5.79 in	34.3
February	4.11 in	31.2
March	4.00 in	25.9
April	4.91 in	24.8
May	5.64 in	25.7
June	6.96 in	41.1
July	6.51 in	43.2
August	6.37 in	41.6
September	5.25 in	29.5
October	4.65 in	21.7
November	4.21 in	24.3
December	4.88 in	29.1
Year	63.20 in	31.1

Weather Station Details

Years	Station	Coordinates
1893–2024	Donaldsonville 4 SW	location