Chapel Hill Average Rainfall by Month

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

Average temperature by month

What's the Rainiest Month in Chapel Hill?

In Chapel Hill, September has the greatest precipitation of any month. On average, Chapel Hill gets 5.2 inches of precipitation in September.

However, March is the month with the greatest chance of precipitation. 37.4% of days in March will have at least some rain or snow.

What's the Driest Month in Chapel Hill?

In Chapel Hill, February has the least precipitation of any month. On average, Chapel Hill gets 3.15 inches of precipitation in February.

October is the month with the lowest chance of precipitation. 27.3% of days in October will have measurable rain.

Month	Precipitation	% Chance
January	3.71 in	36.3
February	3.15 in	36.3
March	4.40 in	37.4
April	3.60 in	33.0
May	3.72 in	32.4
June	4.01 in	35.7
July	4.48 in	35.1
August	4.39 in	34.0
September	5.16 in	30.1
October	3.65 in	27.3
November	3.31 in	29.8
December	3.70 in	35.6
Year	47.31 in	33.6

Weather Station Details

Years	Station	Coordinates
1891–2024	Chapel Hill 2W	location