National Weather Service United States Department of Commerce
Rochester Precipitation Records

Yearly Total
Highest   Lowest
1. 43.94" 1990   1. 11.65" 1910
2. 43.69" 1938   2. 15.44" 1976
3. 42.65" 2000   3. 19.91" 1964
4. 41.76" 2013   4. 20.21" 1958
5. 41.68" 1942   5. 20.32" 1955
6. 41.18" 2007   6. 21.19" 1936
7. 40.90" 1973   7. 21.39" 1988
8. 40.39" 1951   8. 21.92" 1939
9. 39.99" 1986   9.   1932
10. 39.86" 2010   10. 22.47" 1944


Highest Precipitation for Months
January   February   March   April
1. 2.92" 1888   1. 2.97" 2019   1. 4.02" 1888   1. 7.30" 2001
2. 2.53" 1967   2. 2.30" 1915   2. 4.01" 1951   2. 6.79" 2013
3. 2.20" 1933   3. 2.21" 1971   3. 3.98" 2016   3. 6.47"  1999
4. 2.12" 2017   4. 2.06" 1887   4. 3.58" 1990       1990
5. 2.07" 1999   5. 2.03" 1951   5. 3.42" 1956   5. 5.64" 2014
6. 2.00" 1996   6. 2.00" 1981   6. 3.32" 1966   6. 5.51" 2006
7. 1.91" 1975       1948   7. 3.27" 1998   7. 5.25" 1991
8. 1.86" 1949   8. 1.96" 1984   8. 3.21" 2007   8. 5.22" 1929
9. 1.70" 1982   9. 1.76" 2014   9. 3.10" 1920   9. 4.95" 1994
    1916   10. 1.74 1945   10. 3.02" 1942   10. 4.68" 1954
May   June   July   August
1. 12.26" 2013   1. 12.51" 2000   1. 12.33" 1978   1. 14.07" 2007
2. 9.42" 2019   2. 11.99" 1914   2. 10.46" 1981   2. 9.52" 1979
3. 8.41" 1982   3. 9.27" 1990   3. 9.66" 1938   3. 7.86" 1980
4. 7.42" 1888   4. 9.08" 2019   4. 9.00" 1997   4. 7.18" 1942
5. 7.37" 2000   5. 8.53" 2004   5. 8.74" 1999   5. 6.95" 1959
6. 7.28" 1945   6. 8.34" 1967   6. 8.29" 1990   6. 6.88" 1993
7. 7.18" 2001   7. 8.20" 2002   7. 8.14" 1951   7. 6.74" 2021
8. 7.14" 1915   8. 7.79" 2010   8. 7.38" 2019   8. 6.59" 1947
9. 6.70" 1970   9. 7.44" 1994   9. 6.98" 1987   9. 6.51" 1935
10. 6.53 1960   10. 7.41" 1930   10. 6.96" 1949   10. 6.44" 1981
September   October   November   December
1. 10.50" 1986   1. 9.11" 1911   1. 5.91" 1909   1. 3.68" 2010
2. 9.95" 2010   2. 7.57" 2009   2. 5.90" 1991   2. 3.21" 2015
3. 9.10" 2016   3. 6.08" 1970   3. 4.61" 1975   3. 2.83" 1982
4. 8.35" 2019   4. 5.71" 2019   4. 4.50" 1931   4. 2.61" 1911
5. 8.08" 1978   5. 5.09" 2017   5. 4.02" 1992   5. 2.46" 1893
6. 7.95" 1938   6. 4.95" 1979   6. 3.94" 1996   6. 2.22" 2009
7. 7.58" 2018   7. 4.71" 1998   7. 3.93" 1934   7. 2.18" 1940
8. 7.50" 1942   8. 3.86 1966   8. 3.90" 1983   8. 2.17" 1948
9. 7.40" 2007   9. 3.83" 1941   9. 3.59" 1940   9. 2.10" 1887
10. 7.13" 2005   10. 3.78" 1984   10. 3.37" 1973   10. 2.04" 2006


Lowest Precipitation for Months
January   February   March   April
1. 0.07" 1961   1. 0.04" 1964   1.  trace 1910   1. 0.46" 1946
2. 0.11" 1984   2. 0.05" 1910   2. 0.21" 1958   2. 0.69" 1943
3. 0.13" 1942   3. 0.06" 1958   3. 0.31" 1887   3. 0.79" 1936
4. 0.15" 1958       1920   4. 0.32" 1994   4. 0.81" 2021
5. 0.17" 1962   5. 0.07" 1912   5. 0.35" 1912   5. 0.82" 1910
6. 0.18" 1957   6. 0.11" 1982   6. 0.43" 1978   6. 0.86" 1957
7. 0.19" 1913   7. 0.14" 1969   7. 0.51" 1968   7. 0.94" 2000
8. 0.20" 1948       1968   8. 0.54" 1981   8. 1.02" 1987
9. 0.23" 1981   9. 0.15" 1995   9. 0.59" 1948   9. 1.08" 1966
10. 0.24" 1912   10. 0.18" 1996   10. 0.61" 1939   10. 1.09" 1933
            1934                
May   June   July   August
1. 0.40" 1934   1. trace 1910   1. 0.41" 1946   1. 0.31" 1941
2. 1.17" 1963   2. 0.94" 1985   2. 0.42" 1909   2. 0.34" 2003
3. 1.23" 1948   3. 1.08" 1964   3. 0.51" 1948   3. 0.65" 1949
4. 1.36" 1967   4. 1.11" 1972   4. 0.84" 1910   4. 0.92" 1908
5. 1.47" 2002   5. 1.20" 1976   5. 0.89" 1937   5. 0.96" 2011
6. 1.54" 1966   6. 1.36" 1982   6. 1.02" 1975       1886
7. 1.56" 1887   7. 1.46" 2021   7. 1.05" 1967   7. 1.03" 1933
8. 1.60" 1992   8. 1.52" 1988   8. 1.08" 2007   8. 1.17" 1970
9. 1.74" 1989   9. 1.53" 1965   9. 1.12" 1988   9. 1.41" 1950
    1985   10. 1.59" 1992   10. 1.13" 1931   10. 1.48" 1919
September   October   November   December
1. 0.33" 1953   1. 0.01" 1952   1. 0.01" 1917   1. trace 1943
2. 0.38" 1975   2. 0.20" 1953   2. 0.06" 1967   2. 0.07" 1929
3. 0.56" 1999   3. 0.24" 1944   3. 0.09" 1939   3. 0.13" 1913
4. 0.61" 1989   4. 0.27" 1965   4. 0.11" 1976   4. 0.18" 1917
5. 0.62" 1952   5. 0.29" 2011   5. 0.12" 2002   5. 0.20" 2020
6. 0.63" 1979   6. 0.40" 1988   6. 0.13" 1980   6. 0.22" 1967
7. 0.76" 1976   7. 0.50" 1945   7. 0.18" 2007       1958
8. 0.83" 1956   8. 0.52"  2003       1962   8. 0.28" 1998
9. 0.99" 1940       1999   9. 0.20" 1910       1962
10. 1.01" 1981       1964       1908       1937
    1974                        
                             


Precipitation Totals for a Month
Highest   Lowest
1. 14.07" August 2007   1. trace December 1943
2. 12.51" July 2000   2.               June 1910
3. 12.33" July 1978   3.               March 1910
4. 11.99" June 1914   4. 0.01" October 1952
5. 10.50" September 1986   5.               November 1917
6. 10.46" July 1981   6. 0.04" February 1964
7. 9.95" September 2010   7. 0.05" February 1910
8. 9.66" July 1938   8. 0.06" November 1967
9. 9.52" August 1979   9.               February 1958
10. 9..27" June 1990   10.              February 1920

Highest One-Day Amount
1.   7.47" July 11, 1981
2.   6.22" July 5, 1978
3.   5.98" September 12, 1978
4.   5.24" July 26, 1949
5.   5.16" August 18th, 2007
6.   4.80" June 1, 2000
7.   4.34" September 23, 2010
8.   4.18" June 25, 1993
9.   4.10" June 23, 1908
10.   4.06"        June 9, 2004