Most Monthly Precipitation in St. George History

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

What Was the Wettest Month in St. George History?

According to NOAA records, the most precipitation that St. George, Utah has ever received in a single month is 5.4 inches which occurred in October 1912.

St. George Most Rain in One Month

Rank	Precipitation	Month
1	5.4 inches	October 1912
2	4.7 inches	January 1993
3	4.6 inches	March 2006
4	4.4 inches	March 1978
5	4.3 inches	January 1980
6	4.2 inches	September 1939
7	4.0 inches	September 2023
8	3.9 inches	January 1997
9	3.9 inches	March 2023
10	3.6 inches	February 2019
11	3.6 inches	February 1932
12	3.6 inches	March 1958
13	3.4 inches	December 2010
14	3.3 inches	March 1995
15	3.3 inches	March 1983
16	3.2 inches	December 1921
17	3.2 inches	March 1981
18	3.2 inches	January 2023
19	3.1 inches	February 1998
20	3.1 inches	October 1957