Most Monthly Precipitation in Chapel Hill History

This is a list of the largest monthly precipitation totals ever recorded in Chapel Hill, North Carolina history from 1891–2024.

What Was the Wettest Month in Chapel Hill History?

According to NOAA records, the most precipitation that Chapel Hill, North Carolina has ever received in a single month is 24.0 inches which occurred in September 1999.

Chapel Hill Most Rain in One Month

Rank	Precipitation	Month
1	24.0 inches	September 1999
2	14.5 inches	August 1898
3	14.0 inches	September 1924
4	14.0 inches	September 1996
5	13.0 inches	September 2018
6	13.0 inches	July 1919
7	12.8 inches	August 1931
8	12.6 inches	November 1985
9	12.2 inches	September 1928
9	12.2 inches	September 1945
11	12.1 inches	July 1945
12	11.7 inches	August 1891
13	11.4 inches	April 1895
14	11.4 inches	May 1901
15	11.3 inches	August 1901
16	11.1 inches	August 1937
17	10.9 inches	March 1903
18	10.9 inches	December 1892
19	10.7 inches	October 1929
20	10.4 inches	September 2012