Most Monthly Precipitation in Boston History

This is a list of the largest monthly precipitation totals ever recorded in Boston, Massachusetts history from 1893–2024.

What Was the Wettest Month in Boston History?

According to NOAA records, the most precipitation that Boston, Massachusetts has ever received in a single month is 17.1 inches which occurred in August 1955.

Month to date though April 16, 2024: 2.4 inches

Boston Most Rain in One Month

Rank	Precipitation	Month
1	17.1 inches	August 1955
2	14.9 inches	March 2010
3	13.4 inches	May 1954
4	13.2 inches	June 1982
5	12.5 inches	May 2006
6	11.7 inches	July 1921
7	11.6 inches	June 1998
8	11.0 inches	March 1953
9	10.9 inches	September 1933
10	10.7 inches	October 1996
11	10.6 inches	January 1979
12	10.5 inches	June 2013
13	10.4 inches	July 2023
14	10.1 inches	June 2006
15	10.1 inches	July 2021
16	9.9 inches	August 1946
17	9.9 inches	September 1999
18	9.7 inches	December 1969
19	9.7 inches	March 1983
20	9.6 inches	April 2004