Riverside - Extreme Daily Rainfall for Each Year





This page lists the heaviest rainfalls and wettest days of each year in Riverside, California. The information answers questions like: When was the last time Riverside got more than two inches of rain in a single day? What was the heaviest rainfall of 2017?

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

These extremes go back to 1927, with some years missing data. Since then the biggest one-day rainstorm recorded there dropped 4.42 inches (112.3 millimetres) of water on March 4, 1938.

Since 1999 precipitation was measured at the Riverside Municipal Airport. Before then, the weather station was near downtown Riverside.

Most rain in one day for recent years in Riverside
Inches Date Milli­metres
1.59 January 22, 2017 40.4
0.95 January 06, 2016 24.1
1.83 September 15, 2015 46.5
1.07 December 12, 2014 27.2
0.57 February 08, 2013 14.5
0.52 March 17, 2012 13.2
0.75 March 20, 2011 19.1
2.49 December 22, 2010 63.2
Highest daily rainfall recorded at Riverside each year
Inches Date Milli­metres
0.95 December 07, 2009 24.1
1.45 December 15, 2008 36.8
0.46 April 20, 2007 11.7
0.82 April 04, 2006 20.8
2.39 January 09, 2005 60.7
1.48 October 27, 2004 37.6
1.99 March 15, 2003 50.5
1.09 December 16, 2002 27.7
1.31 February 12, 2001 33.3
0.85 February 21, 2000 21.6
0.58 January 26, 1999 14.7
2.20 February 24, 1998 55.9
2.16 December 06, 1997 54.9
1.31 February 21, 1996 33.3
1.72 January 05, 1995 43.7
1.05 March 19, 1994 26.7
2.22 January 07, 1993 56.4
1992
2.45 February 28, 1991 62.2
1.25 February 17, 1990 31.8
1989
0.95 April 15, 1988 24.1
1987
1.26 March 16, 1986 32.0
0.85 November 29, 1985 21.6
1.10 December 27, 1984 27.9
1.84 August 17, 1983 46.7
1.42 March 17, 1982 36.1
1.03 November 28, 1981 26.2
1.47 January 29, 1980 37.3
1.35 January 06, 1979 34.3
1.81 March 01, 1978 46.0
2.05 August 17, 1977 52.1
1.36 September 10, 1976 34.5
0.90 March 08, 1975 22.9
1.32 December 04, 1974 33.5
1.80 February 11, 1973 45.7
0.89 November 16, 1972 22.6
0.94 December 24, 1971 23.9
1.20 November 29, 1970 30.5
2.41 February 24, 1969 61.2
1.93 March 08, 1968 49.0
0.80 January 22, 1967 20.3
2.08 December 03, 1966 52.8
1.46 November 22, 1965 37.1
0.98 November 17, 1964 24.9
1.64 February 10, 1963 41.7
1.16 February 08, 1962 29.5
1.26 December 02, 1961 32.0
0.87 April 27, 1960 22.1
0.76 February 11, 1959 19.3
1.31 February 04, 1958 33.3
1.05 December 15, 1957 26.7
2.70 January 26, 1956 68.6
0.81 January 18, 1955 20.6
2.11 November 11, 1954 53.6
0.64 April 28, 1953 16.3
1.68 January 16, 1952 42.7
2.17 December 30, 1951 55.1
1.25 February 06, 1950 31.8
1.06 November 10, 1949 26.9
1.31 December 27, 1948 33.3
1.17 December 05, 1947 29.7
1.29 November 08, 1946 32.8
2.36 December 22, 1945 59.9
1.40 February 23, 1944 35.6
1943
0.57 December 25, 1942 14.5
1.23 December 10, 1941 31.2
1.52 January 08, 1940 38.6
1.04 January 21, 1939 26.4
4.42 March 04, 1938 112.3
3.22 February 07, 1937 81.8
2.00 December 28, 1936 50.8
2.01 August 25, 1935 51.1
1934
1.40 January 20, 1933 35.6
1.46 February 09, 1932 37.1
1.28 February 05, 1931 32.5
1930
1929
2.00 February 04, 1928 50.8
2.31 February 16, 1927 58.7
Reference

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

Riverside - Extremes
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