Missoula - Extreme Daily Precipitation for Each Year





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

The list gives the highest daily precipitation for each year in Missoula 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 Missoula International Airport and go back to 1927. During that time the heaviest downpour measured for a single day was 2.32 inches (58.9 millimetres) on November 5, 1927.

Most precipitation in one day for recent years in Missoula
Inches Date Milli­metres
1.00 May 23, 2021   25.4
0.97 June 29, 2020   24.6
1.11 April 09, 2019 28.2
0.78 November 24, 2018 19.8
0.85 June 13, 2017 21.6
0.71 April 23, 2016 18.0
0.81 July 11, 2015 20.6
0.75 November 01, 2014 19.1
0.48 June 19, 2013 12.2
0.78 May 27, 2012 19.8
0.68 June 02, 2011 17.3
0.70 June 16, 2010 17.8
Highest daily precipitation recorded at Missoula each year
Inches Date Milli­metres
2.03 August 07, 2009 51.6
0.87 November 12, 2008 22.1
1.01 September 23, 2007 25.7
1.87 April 06, 2006 47.5
0.62 May 16, 2005 15.7
1.07 August 26, 2004 27.2
0.62 May 04, 2003 15.7
0.82 June 09, 2002 20.8
1.49 June 03, 2001 37.8
0.90 October 01, 2000 22.9
0.74 August 03, 1999 18.8
1.00 July 05, 1998 25.4
0.74 June 11, 1997 18.8
1.05 April 10, 1996 26.7
0.78 September 07, 1995 19.8
1.33 April 24, 1994 33.8
0.99 October 07, 1993 25.1
0.75 March 17, 1992 19.1
0.93 May 17, 1991 23.6
1.13 August 11, 1990 28.7
0.47 June 15, 1989 11.9
0.95 May 30, 1988 24.1
1.62 July 21, 1987 41.1
1.05 September 08, 1986 26.7
0.67 September 12, 1985 17.0
0.63 August 31, 1984 16.0
0.91 July 10, 1983 23.1
0.89 June 29, 1982 22.6
1.54 May 21, 1981 39.1
1.83 May 25, 1980 46.5
0.56 August 31, 1979 14.2
0.86 May 23, 1978 21.8
0.81 August 30, 1977 20.6
0.59 July 12, 1976 15.0
1.17 June 19, 1975 29.7
0.81 January 15, 1974 20.6
1.17 June 14, 1973 29.7
0.94 September 12, 1972 23.9
0.66 June 03, 1971 16.8
0.99 June 27, 1970 25.1
1.16 June 24, 1969 29.5
0.62 August 14, 1968 15.7
0.54 June 06, 1967 13.7
0.59 September 12, 1966 15.0
0.79 September 15, 1965 20.1
1.10 June 08, 1964 27.9
0.76 August 10, 1963 19.3
0.84 January 07, 1962 21.3
0.60 May 04, 1961 15.2
0.74 August 01, 1960 18.8
0.82 May 16, 1959 20.8
1.55 June 11, 1958 39.4
1.29 May 20, 1957 32.8
1.53 April 24, 1956 38.9
0.59 December 16, 1955 + 15.0
1.30 September 15, 1954 33.0
1.31 May 24, 1953 33.3
0.56 May 25, 1952 14.2
1.60 April 30, 1951 40.6
1.13 August 05, 1950 28.7
0.64 May 02, 1949 16.3
0.90 June 03, 1948 22.9
1.43 August 22, 1947 36.3
0.95 October 02, 1946 24.1
1945
1.25 August 13, 1944 31.8
1.21 October 05, 1943 30.7
0.99 September 10, 1942 25.1
0.72 May 13, 1941 18.3
0.60 September 27, 1940 15.2
0.91 May 16, 1939 23.1
1.54 June 21, 1938 39.1
0.72 December 11, 1937 18.3
0.80 February 12, 1936 20.3
0.62 May 31, 1935 15.7
0.72 June 06, 1934 18.3
0.78 October 16, 1933 19.8
1.40 May 03, 1932 35.6
1.54 September 09, 1931 39.1
0.76 September 23, 1930 19.3
0.83 June 10, 1929 21.1
0.83 June 23, 1928 21.1
2.32 November 05, 1927 58.9
Reference

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

Missoula - Extremes
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