Most Monthly Precipitation in Oswego History

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

What Was the Wettest Month in Oswego History?

According to NOAA records, the most precipitation that Oswego, New York has ever received in a single month is 10.1 inches which occurred in October 1955.

Oswego Most Rain in One Month

Rank	Precipitation	Month
1	10.1 inches	October 1955
2	9.4 inches	July 1992
3	9.0 inches	November 1963
4	9.0 inches	October 2017
4	9.0 inches	November 1927
6	8.6 inches	September 2010
7	8.4 inches	January 1978
8	8.2 inches	July 2021
9	8.1 inches	October 1995
10	7.9 inches	August 1992
11	7.7 inches	June 2010
12	7.6 inches	September 1975
13	7.5 inches	May 1931
14	7.5 inches	July 2006
15	7.2 inches	October 2008
16	7.1 inches	June 2013
17	7.0 inches	November 1995
18	7.0 inches	October 1988
19	6.9 inches	June 2015
20	6.9 inches	December 1958