Most Monthly Precipitation in Flagstaff History

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

What Was the Wettest Month in Flagstaff History?

According to NOAA records, the most precipitation that Flagstaff, Arizona has ever received in a single month is 12.2 inches which occurred in January 1895.

Flagstaff Most Rain in One Month

Rank	Precipitation	Month
1	12.2 inches	January 1895
2	10.1 inches	February 1993
3	9.9 inches	October 1972
4	9.6 inches	January 1993
5	8.1 inches	August 1986
6	7.8 inches	February 1980
7	7.6 inches	November 1905
8	7.6 inches	July 2013
9	7.3 inches	December 1967
10	7.3 inches	March 2023
11	6.8 inches	December 1992
12	6.8 inches	March 1970
12	6.8 inches	September 1983
12	6.8 inches	March 1893
15	6.6 inches	November 1985
16	6.6 inches	December 1965
17	6.6 inches	July 1986
18	6.6 inches	September 1958
19	6.6 inches	January 2005
20	6.5 inches	January 1980