Most Monthly Precipitation in Pittsburgh History

This is a list of the largest monthly precipitation totals ever recorded in Pittsburgh, Pennsylvania history from 1926–2024.

What Was the Wettest Month in Pittsburgh History?

According to NOAA records, the most precipitation that Pittsburgh, Pennsylvania has ever received in a single month is 11.1 inches which occurred in November 1985.

Pittsburgh Most Rain in One Month

Rank	Precipitation	Month
1	11.1 inches	November 1985
2	10.3 inches	June 1989
3	10.3 inches	June 1951
4	10.1 inches	September 2004
5	8.8 inches	September 1945
6	8.7 inches	July 1992
7	8.5 inches	December 1990
8	8.5 inches	September 2018
9	8.2 inches	October 1954
10	8.2 inches	June 1981
11	8.0 inches	July 1943
12	8.0 inches	June 1996
13	7.9 inches	April 2024
14	7.9 inches	August 1987
15	7.8 inches	August 1994
16	7.7 inches	June 1928
17	7.6 inches	April 1964
18	7.6 inches	August 1975
19	7.5 inches	August 1934
20	7.5 inches	September 1926