Raleigh Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Raleigh?

In Raleigh, September has the greatest precipitation of any month. On average, Raleigh gets 5.1 inches of precipitation in September.

However, July is the month with the greatest chance of precipitation. 37.8% of days in July will have at least some rain.

What's the Driest Month in Raleigh?

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

October is the month with the lowest chance of precipitation. 24.6% of days in October will have measurable rain.

Month	Precipitation	% Chance
January	3.42 in	32.7
February	2.78 in	32.5
March	4.10 in	34.5
April	3.53 in	31.6
May	3.38 in	31.8
June	3.89 in	37.2
July	5.01 in	37.8
August	4.71 in	34.4
September	5.14 in	29.9
October	3.37 in	24.6
November	3.32 in	27.2
December	3.39 in	31.3
Year	46.04 in	32.1

Weather Station Details

Years	Station	Coordinates
1944–2024	Raleigh Durham International Airport	location
1940–1944	Raleigh Municipal Airport	location
1892–1939	Raleigh State University	location