YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.58 | ----- | z | ----- | z | ----- | z | ----- | z | 92.58 | k | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.03 | 81.03 | ----- | z | ----- | z | ----- | z | 83.53 | j | ||
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.64 | f | 96.26 | h | 86.95 | h | 62.93 | q | 48.17 | r | 39.22 | m | ----- | z |
1999 | 43.77 | r | 46.92 | o | 57.63 | l | 63.18 | m | 72.93 | q | 81.92 | r | 90.92 | e | 94.00 | i | 83.73 | h | 64.82 | n | 51.35 | m | 43.25 | s | 90.92 | k |
2000 | 40.43 | q | 48.43 | o | 57.93 | p | 71.85 | q | 69.95 | l | 83.93 | p | 92.42 | g | 92.38 | g | 76.59 | h | 61.90 | u | 43.18 | m | 35.79 | q | ----- | z |
2001 | 39.65 | n | 44.64 | n | 61.47 | p | 63.18 | m | 72.14 | q | ----- | z | 89.54 | e | 95.04 | h | 88.28 | l | 62.12 | n | 46.69 | n | 40.36 | t | 89.54 | k |
2002 | 40.78 | m | 46.50 | l | 53.08 | s | 66.10 | i | 73.44 | m | 85.00 | v | 95.20 | f | 87.71 | g | 83.15 | c | 64.71 | n | 49.28 | l | 45.00 | l | 83.15 | k |
2003 | 44.17 | m | 48.53 | m | 57.05 | j | 66.41 | m | 73.79 | l | 86.82 | h | 97.96 | g | 95.80 | k | 81.22 | l | 69.95 | i | 47.31 | n | 39.57 | j | ----- | z |
2004 | 36.84 | l | 47.68 | j | 63.00 | f | 71.42 | f | 74.83 | h | 85.58 | f | 94.19 | d | 91.35 | e | 74.20 | e | 63.27 | e | 44.55 | a | 39.41 | b | 67.83 | f |
2005 | 41.60 | f | 49.62 | b | 59.07 | a | 64.54 | d | 71.14 | b | 76.07 | c | 92.08 | e | 93.22 | h | 77.92 | f | 64.27 | i | 43.72 | a | 31.71 | c | 60.99 | d |
2006 | 43.00 | a | 45.56 | c | 54.07 | c | 63.82 | b | 74.64 | c | 81.55 | a | 96.58 | 91.18 | c | 81.07 | 62.72 | b | 47.21 | a | 38.45 | b | 64.99 | |||
2007 | 36.23 | 46.63 | a | 58.62 | b | 63.65 | d | 75.13 | 81.37 | 98.83 | a | 92.39 | 80.00 | 63.61 | 46.55 | a | 38.27 | a | 65.11 | |||||||
2008 | 36.06 | 48.79 | 50.90 | b | 58.88 | d | 74.24 | b | 80.03 | 91.81 | e | 90.94 | 79.57 | 62.58 | 48.24 | a | 35.94 | 63.17 | ||||||||
2009 | 36.55 | 49.43 | 51.00 | 64.93 | 75.43 | a | 82.67 | 93.39 | 90.16 | 87.00 | 58.29 | 46.67 | 31.35 | 63.91 | ||||||||||||
2010 | 40.87 | 50.00 | 58.42 | 62.63 | 68.71 | 76.77 | 89.84 | 89.35 | 78.43 | 64.19 | 42.80 | 36.93 | c | 63.25 | ||||||||||||
2011 | 37.00 | 44.94 | k | 54.43 | a | 56.70 | 63.73 | t | 75.13 | 87.29 | 92.67 | a | 85.17 | 60.71 | 45.37 | 38.68 | 63.31 | b | ||||||||
2012 | 39.94 | 45.66 | 55.94 | 68.07 | 72.26 | 79.87 | 92.58 | 94.56 | f | 81.40 | 60.81 | 48.17 | 41.03 | 62.34 | a | |||||||||||
2013 | 35.10 | a | 48.07 | 55.81 | 61.43 | 74.81 | 82.30 | 95.32 | 93.48 | 80.97 | 60.68 | 44.79 | b | 32.29 | 63.75 | |||||||||||
2014 | 38.45 | 41.04 | 54.29 | c | 64.10 | 74.77 | 78.03 | 95.48 | 91.58 | 81.87 | 68.61 | 46.23 | 40.15 | d | 64.55 | |||||||||||
2015 | 40.06 | 52.00 | 62.63 | a | 66.27 | 77.32 | 88.93 | a | 92.71 | 92.19 | 79.59 | c | 71.29 | 46.62 | a | 39.71 | 67.44 | |||||||||
2016 | 40.48 | 52.45 | 57.52 | 72.03 | 73.58 | 83.40 | 86.77 | a | 91.48 | 78.31 | a | 57.81 | 50.61 | b | 32.77 | 64.77 | ||||||||||
2017 | 29.26 | 42.86 | 54.03 | 61.30 | 75.13 | 80.60 | 95.68 | 94.16 | 78.37 | 60.35 | 45.45 | a | 34.16 | 62.61 | ||||||||||||
2018 | 41.06 | 42.46 | 55.65 | 63.83 | 76.58 | 77.37 | 92.00 | 90.10 | 77.63 | 63.52 | 47.30 | 38.16 | 63.81 | |||||||||||||
2019 | 39.55 | 36.79 | 50.65 | 61.90 | 74.48 | 79.70 | 87.26 | 91.42 | 76.70 | 55.26 | 46.40 | 36.52 | 61.38 | |||||||||||||
2020 | 40.52 | 46.52 | 54.00 | 64.43 | 72.39 | 75.67 | 88.26 | 90.47 | a | 81.28 | a | 60.19 | 44.43 | 38.03 | 63.02 | |||||||||||
2021 | 42.77 | 39.43 | 55.06 | 65.41 | a | ----- | z | 91.41 | h | 95.67 | g | 90.50 | o | 79.38 | v | 65.41 | i | ----- | z | ----- | z | 50.67 | h | |||
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 96.50 | y | 88.88 | v | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | 48.19 | l | ----- | z | 58.00 | y | 84.62 | g | 84.67 | 95.71 | 94.86 | q | 84.37 | c | 64.29 | 46.69 | a | ----- | z | 75.15 | g | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.56 | 46.08 | 55.42 | 63.76 | 74.04 | 80.24 | 92.31 | 91.27 | 80.53 | 62.25 | 46.21 | 36.68 | 63.98 | |||||||||||||
S.D. | 3.45 | 4.52 | 3.17 | 3.43 | 2.17 | 3.61 | 3.42 | 1.83 | 3.06 | 3.82 | 1.84 | 3.12 | 1.47 | |||||||||||||
SKEW | -1.13 | -0.50 | 0.40 | 0.26 | -0.92 | 0.58 | -0.04 | -1.17 | 0.16 | 0.58 | 0.34 | -0.51 | 0.62 | |||||||||||||
MAX | 43.00 | 52.45 | 62.63 | 72.03 | 77.32 | 88.93 | 98.83 | 94.16 | 87.00 | 71.29 | 50.61 | 41.03 | 67.44 | |||||||||||||
MIN | 29.26 | 36.79 | 50.65 | 56.70 | 68.71 | 75.13 | 86.77 | 86.03 | 74.20 | 55.26 | 42.80 | 31.35 | 61.38 | |||||||||||||
YRS | 16 | 16 | 17 | 17 | 15 | 17 | 20 | 17 | 19 | 17 | 18 | 17 | 13 |