Most Monthly Precipitation in Kahului History

This is a list of the largest monthly precipitation totals ever recorded in Kahului, Hawaii history from 1905–2024.

What Was the Wettest Month in Kahului History?

According to NOAA records, the most precipitation that Kahului, Hawaii has ever received in a single month is 17.5 inches which occurred in January 1916.

Kahului Most Rain in One Month

Rank	Precipitation	Month
1	17.5 inches	January 1916
2	14.5 inches	January 1980
3	14.3 inches	April 1989
4	13.7 inches	January 1971
5	10.9 inches	March 1967
6	10.2 inches	December 1996
7	10.2 inches	December 1988
8	9.8 inches	March 2021
9	9.6 inches	March 2015
10	9.5 inches	April 1918
11	9.5 inches	December 1955
12	9.3 inches	November 1965
13	9.2 inches	January 1997
14	9.0 inches	January 1974
15	8.8 inches	February 1907
16	8.7 inches	November 1970
17	8.7 inches	December 1910
18	8.6 inches	January 1959
19	8.6 inches	April 1923
20	8.5 inches	March 2004