Tucson - Extreme Daily Precipitation 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
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
Reference

Jay Lawrimore. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information. 

Tucson - Extremes
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