Tucson AZ Most Precipitation in a Day for Each Year

This page lists the biggest rainstorms or snowstorms of the year in Tucson, Arizona along with the date they occurred. The information answers questions like: When was the last time more than two inches of precipitation landed on Tucson in a single day? What was the rainiest day of 2018 or a century ago?

The list gives the highest daily precipitation for each year in Tucson 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 go back to 1895, with a few years missing data. During that time the heaviest downpour measured for a single day was 3.93 inches (99.8 millimetres) on July 29, 1958.

Since 1949 the precipitation extremes were observed at Tucson International Airport. Before then, the weather station was near downtown Tucson.

Most precipitation in one day for recent years in Tucson
Inches	Date	Millimetres
1.25	December 22, 2023	31.8
1.06	August 23, 2022	26.9
2.15	August 14, 2021	54.6
0.78	August 20, 2020	19.8
1.10	May 11, 2019	27.9
1.01	July 09, 2018 +	25.7
1.48	August 13, 2017	37.6
1.25	September 07, 2016	31.8
1.49	July 28, 2015	37.8
1.84	September 08, 2014	46.7
1.21	November 23, 2013	30.7
1.06	July 15, 2012	26.9
2.84	September 15, 2011	72.1
1.21	August 24, 2010	30.7

Highest daily precipitation recorded at Tucson each year
Inches	Date	Millimetres
0.78	July 08, 2009	19.8
1.73	July 11, 2008	43.9
1.49	July 31, 2007	37.8
1.90	July 31, 2006	48.3
2.29	August 23, 2005	58.2
0.71	April 02, 2004	18.0
1.33	September 24, 2003	33.8
0.96	July 14, 2002	24.4
0.70	March 07, 2001	17.8
1.53	October 11, 2000	38.9
1.48	July 14, 1999	37.6
0.99	July 21, 1998	25.1
0.61	December 22, 1997	15.5
1.72	September 03, 1996	43.7
2.15	September 28, 1995	54.6
2.10	December 05, 1994	53.3
1.81	August 13, 1993	46.0
1.96	August 23, 1992	49.8
1.33	September 17, 1991	33.8
1.12	July 15, 1990	28.4
1.09	October 05, 1989	27.7
1.38	August 23, 1988	35.1
1.30	August 02, 1987	33.0
1.04	July 21, 1986	26.4
1.27	July 21, 1985	32.3
1.31	September 26, 1984	33.3
2.96	October 01, 1983	75.2
1.04	September 11, 1982 +	26.4
1.27	July 25, 1981	32.3
1.08	September 07, 1980	27.4
1.11	July 20, 1979	28.2
1.55	October 21, 1978	39.4
1.47	October 06, 1977	37.3
1.25	September 25, 1976	31.8
1.17	July 12, 1975	29.7
1.47	July 07, 1974	37.3
0.98	February 21, 1973	24.9
1.75	October 19, 1972	44.5
1.00	August 03, 1971	25.4
1.90	September 04, 1970	48.3
0.81	August 28, 1969	20.6
1.57	November 14, 1968	39.9
1.22	December 15, 1967	31.0
1.48	September 12, 1966	37.6
0.96	December 22, 1965	24.4
2.85	September 10, 1964	72.4
0.77	September 04, 1963	19.6
2.40	September 26, 1962	61.0
2.48	August 22, 1961	63.0
1.08	January 11, 1960	27.4
1.40	July 03, 1959	35.6
3.93	July 29, 1958	99.8
1.66	August 31, 1957	42.2
1.09	July 12, 1956	27.7
2.28	August 03, 1955	57.9
1.28	September 01, 1954	32.5
0.85	July 29, 1953	21.6
1.19	March 09, 1952	30.2
1.47	October 30, 1951	37.3
1.22	February 11, 1950	31.0
1.30	August 08, 1949	33.0
0.60	July 22, 1948	15.2
–	1947	–
1.47	August 04, 1946	37.3
–	1945	–
1.52	August 08, 1944	38.6
–	1943	–
1.19	February 28, 1942	30.2
1.45	August 14, 1941	36.8
–	1940	–
1.18	September 04, 1939	30.0
1.56	June 28, 1938	39.6
0.87	January 07, 1937	22.1
2.00	July 26, 1936	50.8
2.88	August 01, 1935	73.2
0.92	December 28, 1934	23.4
1.45	August 22, 1933	36.8
0.94	October 12, 1932	23.9
2.09	November 22, 1931	53.1
1.23	February 24, 1930	31.2
1.88	September 24, 1929	47.8
0.71	August 22, 1928	18.0
1.30	September 12, 1927	33.0
1.38	September 27, 1926	35.1
1.09	November 25, 1925	27.7
0.61	November 14, 1924	15.5
2.48	August 09, 1923	63.0
1.02	September 27, 1922	25.9
2.12	September 11, 1921	53.8
1.05	March 23, 1920	26.7
1.90	July 16, 1919	48.3
0.74	February 28, 1918	18.8
1.40	August 11, 1917	35.6
2.63	January 19, 1916	66.8
1.40	December 31, 1915	35.6
1.35	August 30, 1914	34.3
0.75	August 10, 1913	19.1
1.20	July 19, 1912	30.5
1.30	September 14, 1911	33.0
1.82	July 22, 1910	46.2
1.06	September 05, 1909	26.9
1.84	July 17, 1908	46.7
1.85	August 03, 1907	47.0
2.15	December 03, 1906	54.6
1.17	January 10, 1905	29.7
0.94	July 30, 1904	23.9
1.42	March 25, 1903	36.1
1.64	October 29, 1902	41.7
0.79	February 07, 1901	20.1
1.27	November 17, 1900	32.3
0.66	June 25, 1899	16.8
1.99	August 22, 1898	50.5
1.52	August 02, 1897	38.6
0.97	October 01, 1896	24.6
1.83	November 23, 1895	46.5

Tucson - Extreme Daily Precipitation for Each Year

Reference

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