Aiken Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Aiken?

In Aiken, June has the greatest precipitation of any month. On average, Aiken gets 5.5 inches of precipitation in June.

June is also the month where rain is most common. 35.0% of days in June will have at least some rain.

What's the Driest Month in Aiken?

In Aiken, October has the least precipitation of any month. On average, Aiken gets 2.78 inches of precipitation in October.

October is also the month where rain is least common. 18.6% of days in October will have measurable rain.

Month	Precipitation	% Chance
January	4.92 in	29.1
February	3.75 in	27.8
March	4.67 in	25.3
April	3.30 in	24.5
May	3.21 in	23.8
June	5.49 in	35.0
July	5.23 in	34.1
August	5.17 in	34.1
September	4.19 in	25.9
October	2.78 in	18.6
November	3.03 in	22.6
December	4.01 in	29.8
Year	49.05 in	27.5

Weather Station Details

Years	Station	Coordinates
2009–2024	AIKEN 2 E	location
1893–2008	AIKEN 5SE	location