Flagstaff AZ Most Precipitation in a Day for Each Year

This page lists the biggest rainstorms or snowstorms of the year in Flagstaff, Arizona along with the date they occurred. The information answers questions like: When was the last time more than three inches of precipitation landed on Flagstaff in a single day? What was the rainiest day of 2019?

The list gives the highest daily precipitation for each year in Flagstaff and the date that it happened. A date with a plus sign beside it means the same amount of moisture also fell on at least one other day earlier that year.

These records were observed at Flagstaff Pulliam Airport and go back to 1951. During that time the heaviest downpour measured for a single day was 3.93 inches (99.8 millimetres) on February 19, 1993.

Most precipitation in one day for recent years in Flagstaff
Inches	Date	Millimetres
2.38	March 21, 2023	60.5
1.56	August 14, 2022	39.6
1.80	July 24, 2021	45.7
1.00	March 18, 2020	25.4
2.00	November 29, 2019 +	50.8
2.30	October 02, 2018	58.4
1.79	July 23, 2017	45.5
1.48	December 22, 2016	37.6
1.98	March 01, 2015	50.3
1.89	July 04, 2014	48.0
1.76	July 02, 2013	44.7
1.39	March 18, 2012	35.3
2.33	February 19, 2011	59.2
3.39	January 21, 2010	86.1

Highest daily precipitation recorded at Flagstaff each year
Inches	Date	Millimetres
1.75	December 07, 2009	44.5
1.28	January 27, 2008	32.5
1.58	December 07, 2007	40.1
1.14	July 29, 2006	29.0
1.57	January 04, 2005	39.9
3.33	December 29, 2004	84.6
2.00	November 12, 2003	50.8
1.12	September 10, 2002	28.4
1.10	August 09, 2001	27.9
0.85	March 06, 2000	21.6
1.50	September 14, 1999	38.1
1.48	October 25, 1998	37.6
1.35	September 26, 1997	34.3
0.89	September 13, 1996	22.6
2.02	February 14, 1995	51.3
–	1994	–
3.93	February 19, 1993	99.8
2.75	August 22, 1992	69.9
2.05	March 01, 1991	52.1
1.63	September 18, 1990	41.4
1.27	August 17, 1989	32.3
1.62	August 23, 1988	41.1
1.99	August 12, 1987	50.5
3.04	August 13, 1986	77.2
2.00	November 25, 1985	50.8
1.37	July 24, 1984	34.8
2.71	September 23, 1983	68.8
2.13	November 30, 1982	54.1
1.33	November 28, 1981 +	33.8
2.37	February 14, 1980	60.2
1.83	January 17, 1979	46.5
3.21	November 11, 1978	81.5
1.40	August 09, 1977	35.6
2.29	February 05, 1976	58.2
1.86	November 28, 1975	47.2
1.15	January 05, 1974	29.2
0.90	March 12, 1973	22.9
1.70	October 06, 1972	43.2
1.83	December 26, 1971	46.5
2.84	September 05, 1970	72.1
1.61	July 26, 1969	40.9
1.34	October 03, 1968	34.0
2.32	December 19, 1967	58.9
2.87	December 06, 1966	72.9
2.11	September 18, 1965	53.6
2.55	July 15, 1964	64.8
1.79	August 31, 1963	45.5
1.51	July 22, 1962	38.4
1.36	October 08, 1961	34.5
1.61	August 22, 1960	40.9
1.85	October 01, 1959	47.0
1.79	September 28, 1958	45.5
1.50	January 08, 1957	38.1
2.40	June 29, 1956	61.0
1.58	June 13, 1955	40.1
1.28	March 22, 1954	32.5
1.30	November 17, 1953 +	33.0
1.73	January 18, 1952	43.9
2.95	December 30, 1951	74.9

Flagstaff - Extreme Daily Precipitation for Each Year

Reference

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