YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.14 | a | 1.24 | 0.17 | 1.63 | 3.67 | 7.85 | g | ||||
1924 | 0.00 | 0.00 | 2.44 | 0.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.54 | h | ||||
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.30 | r | 0.34 | 1.59 | 2.11 | 1.67 | 0.18 | ----- | z | 5.89 | g | |||||
1926 | 0.39 | ----- | z | 4.10 | 4.83 | 0.09 | 0.11 | 2.20 | 1.09 | 1.93 | 0.06 | 0.31 | 2.95 | 18.06 | a | |||||||||||
1927 | 0.06 | i | 3.42 | 1.22 | 1.10 | a | 0.17 | 2.42 | b | 0.39 | f | 1.01 | a | 4.28 | 0.23 | 0.45 | 3.20 | 17.50 | b | |||||||
1928 | 0.15 | 2.38 | 0.24 | 0.02 | 0.16 | 0.00 | b | 1.83 | 2.25 | 0.00 | 0.73 | 0.00 | t | 1.39 | 9.15 | a | ||||||||||
1929 | 1.14 | 0.73 | 0.73 | 0.59 | 0.00 | 0.00 | a | 1.95 | a | 2.98 | 0.40 | 0.28 | 0.00 | 0.00 | 8.80 | |||||||||||
1930 | 3.03 | 0.64 | 2.66 | 0.57 | 1.18 | 0.50 | 2.07 | b | 4.80 | 0.42 | 0.44 | g | 0.59 | t | 0.10 | 15.97 | b | |||||||||
1931 | 0.37 | 4.62 | 0.32 | 0.87 | 0.14 | 1.20 | 1.73 | 4.73 | 0.28 | 0.12 | e | 5.23 | 1.47 | 21.08 | ||||||||||||
1932 | 0.44 | 3.34 | 0.32 | 0.46 | 0.00 | 0.06 | 0.60 | 1.57 | 0.53 | 0.79 | 0.00 | 2.92 | b | 11.03 | ||||||||||||
1933 | 2.17 | e | 0.92 | e | 0.00 | 1.80 | 0.12 | 0.00 | 0.45 | 1.54 | 2.31 | 0.97 | 1.01 | 0.12 | 11.41 | |||||||||||
1934 | 0.27 | 1.39 | 0.20 | 0.41 | 0.07 | 0.45 | 0.16 | 2.36 | 0.57 | 0.00 | 0.99 | 1.95 | 8.82 | |||||||||||||
1935 | 2.22 | 1.88 | 2.31 | 0.55 | 0.36 | 0.00 | 1.69 | 4.00 | 1.31 | 0.00 | 1.59 | 0.34 | 16.25 | |||||||||||||
1936 | 1.30 | 2.68 | 1.16 | 0.00 | 0.00 | 0.02 | 1.44 | 2.82 | 1.16 | 0.89 | 1.13 | 2.81 | 15.41 | |||||||||||||
1937 | 2.83 | a | 2.01 | 2.21 | 0.00 | 0.21 | 0.12 | i | 0.55 | 0.14 | 1.65 | 0.00 | 0.10 | 1.09 | 10.79 | a | ||||||||||
1938 | 0.66 | 1.70 | 1.53 | i | 0.15 | 0.00 | 0.69 | 0.55 | 1.15 | 0.22 | 0.00 | 0.00 | 1.71 | 6.83 | a | |||||||||||
1939 | 1.01 | 1.64 | 0.72 | 0.34 | 0.00 | f | 0.00 | b | 0.06 | 3.27 | 2.98 | g | 0.17 | 1.17 | 0.13 | 8.51 | b | |||||||||
1940 | 0.28 | 2.54 | 0.08 | 0.77 | 0.00 | 0.05 | 0.96 | 0.94 | h | 0.30 | i | 2.37 | 1.15 | f | 3.19 | i | 7.05 | d | ||||||||
1941 | 0.22 | i | 2.33 | 5.10 | 2.46 | 1.62 | j | 0.00 | i | 0.94 | 1.96 | 1.46 | 0.19 | b | 2.25 | i | 2.52 | g | 14.44 | e | ||||||
1942 | 1.05 | 0.78 | 0.51 | ----- | z | 0.00 | 0.00 | 2.00 | 1.89 | 1.45 | 1.01 | 0.00 | 0.86 | 9.55 | a | |||||||||||
1943 | 0.48 | i | 0.44 | b | 1.66 | 0.00 | 0.00 | 0.00 | 0.00 | 3.68 | 1.37 | h | 0.79 | 0.00 | 2.58 | 9.15 | b | |||||||||
1944 | 0.54 | 4.30 | 1.48 | 0.77 | e | 1.14 | h | 0.00 | d | 0.48 | a | 0.82 | 1.23 | f | 0.43 | a | 2.04 | 1.13 | 11.99 | b | ||||||
1945 | 2.09 | 0.38 | 2.84 | 0.00 | 0.00 | j | 0.00 | 0.20 | m | 1.94 | 0.00 | 0.89 | j | 0.00 | 0.82 | 8.07 | c | |||||||||
1946 | 1.69 | 0.65 | 0.15 | 0.45 | 0.00 | 0.00 | 0.76 | 1.36 | 5.46 | 0.85 | 2.13 | 2.01 | 15.51 | |||||||||||||
1947 | 0.18 | 0.92 | 0.00 | 0.00 | 0.51 | 0.00 | 0.27 | 3.40 | 1.76 | 1.07 | 0.72 | 1.53 | 10.36 | |||||||||||||
1948 | 0.00 | 1.37 | 0.78 | 0.00 | 0.00 | 0.08 | 1.24 | 1.17 | 0.00 | 0.86 | 0.00 | 2.03 | 7.53 | |||||||||||||
1949 | 3.48 | 0.72 | 0.31 | 0.61 | 0.09 | 1.99 | 0.66 | 0.03 | 1.36 | 1.11 | 0.47 | 1.76 | 12.59 | |||||||||||||
1950 | 1.27 | 1.63 | 0.39 | h | 0.00 | 0.07 | 0.48 | 3.04 | 0.19 | 0.91 | 0.00 | 0.17 | 0.00 | l | 7.76 | b | ||||||||||
1951 | 2.63 | 0.68 | 1.22 | a | 2.44 | 0.43 | 0.00 | 0.97 | 5.47 | 0.25 | 0.34 | 1.22 | 1.98 | 17.63 | ||||||||||||
1952 | 1.98 | 0.43 | c | 3.20 | 2.73 | 0.00 | 0.27 | 0.78 | g | 0.65 | 0.68 | 0.00 | 4.58 | 1.87 | 16.39 | a | ||||||||||
1953 | 0.46 | 0.51 | 1.75 | 0.03 | 0.06 | 0.00 | 1.98 | 0.36 | 0.00 | 0.00 | 0.00 | a | 0.03 | e | 5.18 | |||||||||||
1954 | 1.65 | 0.95 | 3.01 | 0.00 | 0.07 | 0.02 | 4.04 | 3.26 | 2.64 | 0.00 | a | 0.00 | 0.06 | 15.70 | ||||||||||||
1955 | 2.86 | 0.05 | 0.00 | 0.00 | 0.00 | 2.06 | 4.97 | 6.25 | 0.04 | 0.00 | 0.45 | 1.02 | 17.70 | |||||||||||||
1956 | 1.51 | 0.89 | 0.00 | 0.36 | 0.00 | a | 0.02 | 0.61 | 0.52 | 0.50 | 0.62 | 0.00 | 0.06 | 5.09 | ||||||||||||
1957 | 4.94 | 0.77 | 1.36 | 0.17 | 0.47 | 0.32 | 1.33 | 1.28 | 0.00 | 4.51 | 0.15 | 0.43 | 15.73 | |||||||||||||
1958 | 0.05 | 1.16 | 2.59 | 0.88 | 0.00 | 0.24 | 0.21 | 2.32 | 2.45 | 0.72 | 0.99 | 0.00 | 11.61 | |||||||||||||
1959 | 0.59 | 1.75 | 0.00 | 0.05 | 0.00 | 0.25 | 1.06 | 3.28 | 0.17 | 5.21 | 0.64 | 5.28 | 18.28 | |||||||||||||
1960 | 3.05 | 0.19 | 0.36 | 0.00 | 0.09 | 0.00 | 2.00 | 1.21 | 0.55 | 2.55 | 0.15 | 0.00 | 10.15 | |||||||||||||
1961 | 0.56 | 0.10 | 1.33 | 0.00 | 0.00 | 0.00 | 1.34 | 1.35 | 0.93 | 0.29 | 0.15 | 2.87 | 8.92 | |||||||||||||
1962 | 2.05 | 1.27 | 1.56 | 0.07 | 0.00 | 0.02 | 0.05 | 0.16 | 1.32 | 0.11 | 0.18 | 1.09 | 7.88 | |||||||||||||
1963 | 0.91 | 2.30 | 0.80 | 0.55 | 0.00 | 0.00 | 0.60 | 6.01 | 0.38 | 1.13 | 2.45 | 0.30 | 15.43 | |||||||||||||
1964 | 0.55 | 0.00 | 1.17 | 0.17 | 0.00 | 0.00 | 0.98 | 3.38 | 0.93 | 1.47 | 1.46 | 1.51 | 11.62 | |||||||||||||
1965 | 2.54 | 1.73 | 1.05 | 1.67 | 0.33 | 0.18 | 1.59 | 0.89 | 0.43 | 0.16 | 2.33 | 6.66 | 19.56 | |||||||||||||
1966 | 0.54 | 1.32 | 0.44 | 0.00 | 0.00 | 0.13 | 0.09 | 1.95 | 3.28 | 0.84 | 0.83 | 1.92 | 11.34 | |||||||||||||
1967 | 0.37 | 0.00 | 1.05 | 0.57 | 0.39 | 0.23 | 3.18 | 1.15 | 0.34 | 0.08 | 1.87 | 6.32 | 15.55 | |||||||||||||
1968 | 0.37 | 1.35 | 2.03 | 0.19 | 0.00 | 0.00 | 1.72 | 3.33 | 0.00 | 1.12 | 1.84 | 1.96 | 13.91 | |||||||||||||
1969 | 2.14 | 1.98 | 0.83 | 0.12 | 0.94 | 0.00 | 1.02 | 2.69 | 1.59 | 0.50 | 1.06 | 1.02 | 13.89 | |||||||||||||
1970 | 0.13 | 0.38 | 3.12 | 0.47 | 0.00 | 0.00 | 0.72 | 0.76 | 4.56 | 0.22 | 0.16 | 0.43 | 10.95 | |||||||||||||
1971 | 0.35 | 0.71 | 0.00 | 0.22 | 0.00 | 0.00 | 0.00 | 4.05 | 2.99 | 3.18 | 0.10 | 0.64 | 12.24 | |||||||||||||
1972 | 0.00 | 0.00 | ----- | z | 0.00 | 1.12 | 0.75 | 0.93 | 0.93 | 0.79 | 9.40 | 1.80 | 2.27 | 17.99 | a | |||||||||||
1973 | 0.37 | 2.02 | 3.11 | 0.02 | 0.36 | 0.27 | 1.16 | 0.26 | 0.00 | 0.00 | 1.21 | 0.02 | 8.80 | |||||||||||||
1974 | 1.94 | 0.07 | 1.56 | 0.00 | 0.00 | 0.00 | 2.32 | 1.39 | 0.36 | 4.39 | 0.11 | 0.86 | 13.00 | |||||||||||||
1975 | 0.37 | 1.51 | 2.27 | 1.11 | 0.00 | 0.00 | 2.70 | 0.31 | 1.47 | 0.37 | 0.00 | b | 1.04 | 11.15 | ||||||||||||
1976 | 0.15 | 2.20 | 0.55 | 1.54 | 0.64 | 0.14 | 0.63 | 1.09 | 2.75 | 0.61 | 0.14 | ----- | z | 10.44 | a | |||||||||||
1977 | 1.11 | 0.02 | 0.50 | 0.16 | 0.50 | 0.46 | 1.31 | 3.05 | 1.09 | 1.00 | 0.72 | 0.61 | 10.53 | |||||||||||||
1978 | 3.35 | 3.63 | 4.93 | 0.71 | 0.90 | 0.24 | 1.39 | 2.85 | 0.26 | 1.27 | 3.07 | 5.42 | 28.02 | |||||||||||||
1979 | 3.86 | 0.28 | 2.98 | 0.04 | 2.07 | 0.00 | 0.30 | 1.49 | 0.00 | 0.18 | 0.69 | 0.45 | 12.34 | |||||||||||||
1980 | 4.04 | 5.07 | ----- | z | 0.53 | 0.02 | 0.00 | 2.51 | ----- | z | 0.15 | 0.00 | 0.00 | 0.25 | 12.57 | b | ||||||||||
1981 | 0.65 | 1.26 | 2.25 | 0.38 | 1.16 | 0.00 | 2.87 | 0.63 | 1.26 | 2.13 | 1.99 | 0.00 | 14.58 | |||||||||||||
1982 | 2.31 | 1.68 | 2.90 | 0.00 | 0.65 | 0.04 | 1.57 | 2.31 | 2.10 | 0.00 | 3.48 | ----- | z | 17.04 | a | |||||||||||
1983 | 1.63 | 1.53 | 5.25 | 0.53 | 0.07 | d | 0.00 | 0.91 | 4.41 | 3.25 | 2.11 | 0.88 | 1.51 | 22.08 | ||||||||||||
1984 | 0.48 | 0.00 | 0.00 | 1.44 | 0.30 | 0.21 | 5.01 | 2.13 | 2.78 | 1.65 | 1.96 | 5.41 | 21.37 | |||||||||||||
1985 | 1.71 | 1.22 | 0.96 | 0.11 | 0.00 | 0.00 | 1.57 | h | 0.30 | 3.47 | a | 1.71 | 2.76 | u | 0.92 | 10.40 | b | |||||||||
1986 | 0.11 | 2.44 | 2.54 | 0.00 | 0.00 | 0.00 | 1.60 | 3.02 | 0.60 | 3.10 | 0.48 | 1.45 | 15.34 | |||||||||||||
1987 | 1.48 | 1.98 | 0.27 | 0.15 | 0.14 | 0.07 | 0.37 | 0.41 | 0.23 | 0.50 | 2.13 | 1.45 | 9.18 | |||||||||||||
1988 | 1.82 | 0.73 | 0.20 | 2.92 | 0.00 | 0.08 | 0.93 | 2.56 | 0.31 | a | 1.94 | 0.72 | 0.60 | 12.81 | ||||||||||||
1989 | 2.00 | 0.18 | 3.17 | 0.00 | 0.34 | 0.00 | 1.95 | 0.83 | 0.46 | 0.62 | 0.20 | 0.79 | 10.54 | |||||||||||||
1990 | 1.33 | 1.60 | 1.37 | 0.84 | 0.31 | 0.40 | 1.46 | 2.49 | 2.26 | 0.00 | 1.83 | 2.05 | 15.94 | |||||||||||||
1991 | 1.70 | 0.88 | 6.47 | 0.00 | 0.00 | 0.00 | 0.15 | 0.26 | 1.24 | 0.74 | 1.62 | 3.77 | 16.83 | |||||||||||||
1992 | 2.91 | 2.11 | 5.02 | 0.69 | 1.89 | 0.23 | 4.53 | 4.16 | 0.58 | 0.56 | 0.24 | 4.80 | 27.72 | |||||||||||||
1993 | 8.93 | 3.41 | 2.61 | 0.00 | 0.25 | 0.00 | 0.40 | 3.71 | 0.00 | 0.38 | a | 4.37 | 0.11 | 24.17 | ||||||||||||
1994 | 0.27 | 1.93 | 1.26 | 0.92 | 0.86 | w | 0.00 | f | 0.95 | 0.22 | 0.32 | 0.64 | 0.93 | b | 3.09 | g | 7.44 | c | ||||||||
1995 | 3.11 | 1.14 | a | 2.06 | e | 0.38 | q | 0.25 | 0.00 | 0.00 | 1.16 | 0.93 | 0.00 | 0.90 | 0.00 | 9.55 | a | |||||||||
1996 | ----- | z | 1.55 | 0.40 | ----- | z | 0.00 | a | 0.05 | 0.43 | ----- | z | 1.34 | d | 0.03 | 0.36 | a | ----- | z | 4.16 | d | |||||
1997 | 2.77 | c | 2.72 | 0.04 | 0.54 | 0.20 | ----- | z | 0.02 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 6.29 | f | |||||
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.00 | d | 0.29 | a | 0.91 | g | ----- | z | 1.29 | j |
1999 | 0.22 | 0.36 | 0.07 | ----- | z | 0.00 | ----- | z | 2.06 | j | 0.78 | d | 0.67 | 0.00 | 0.00 | 0.00 | 2.10 | c | ||||||||
2000 | 0.00 | ----- | z | 1.91 | i | 0.00 | 0.00 | 0.13 | 0.08 | f | 2.52 | 0.00 | 5.12 | i | 0.62 | j | 0.03 | 2.68 | e | |||||||
2001 | 3.21 | 0.69 | 1.74 | 1.90 | a | 0.09 | 0.05 | 2.01 | v | 1.53 | 0.00 | 0.05 | b | 0.14 | 1.45 | 10.85 | a | |||||||||
2002 | 0.18 | 0.00 | 0.30 | 0.20 | ----- | z | 0.00 | 0.56 | 0.55 | a | ----- | z | 1.08 | 0.00 | e | 1.15 | 4.02 | b | ||||||||
2003 | 0.11 | 2.81 | p | 2.37 | b | 0.29 | 0.00 | 0.00 | 0.35 | a | 0.60 | 0.19 | 0.10 | 0.83 | 0.67 | 5.51 | a | |||||||||
2004 | 0.70 | ----- | z | 0.34 | i | ----- | z | 0.10 | 0.00 | 0.85 | 0.91 | 1.49 | o | 0.57 | 1.64 | 3.02 | 7.79 | d | ||||||||
2005 | 2.25 | b | 6.19 | a | 0.16 | l | ----- | z | 0.00 | 0.05 | g | 1.34 | b | 0.55 | c | 0.00 | 0.30 | 0.00 | 0.00 | 10.63 | c | |||||
2006 | 0.00 | 0.00 | 2.42 | b | 0.17 | 0.02 | ----- | z | 3.83 | 3.47 | 1.07 | 1.14 | a | 0.04 | ----- | z | 12.16 | b | ||||||||
2007 | 1.39 | 0.89 | a | 0.78 | 0.48 | a | ----- | z | ----- | z | 1.35 | 1.76 | b | 0.27 | d | 0.08 | 0.03 | 7.27 | 14.30 | b | ||||||
2008 | 3.92 | 1.77 | 0.06 | 0.00 | 1.54 | k | 0.05 | 2.04 | 3.03 | 1.10 | 0.12 | 0.00 | 5.89 | h | 12.09 | b | ||||||||||
2009 | 0.41 | i | 1.82 | 0.00 | 0.55 | 0.68 | 0.62 | a | 0.38 | 0.60 | a | 0.54 | b | 0.00 | 0.00 | 1.54 | l | 5.19 | b | |||||||
2010 | 5.37 | g | 2.21 | i | 1.61 | c | 0.08 | 0.00 | 0.00 | 2.26 | c | 2.68 | c | 1.68 | 0.98 | c | 0.52 | g | 2.61 | b | 11.90 | c | ||||
2011 | 0.00 | l | 1.50 | i | 0.59 | k | 0.92 | m | 0.07 | p | 0.00 | l | 1.56 | p | 0.74 | l | 0.22 | n | 0.04 | p | 1.02 | p | 2.95 | o | 0.00 | l |
2012 | 0.02 | r | 0.16 | l | 1.28 | m | 0.52 | n | 0.00 | m | ----- | z | 2.84 | j | 1.98 | i | 2.19 | l | 0.22 | i | 0.55 | j | 2.07 | o | 0.00 | l |
2013 | 0.10 | l | 0.13 | l | 1.55 | j | 0.33 | i | 0.00 | j | 0.00 | j | 2.78 | l | 0.90 | j | 0.27 | n | 0.23 | i | 3.57 | n | 0.63 | n | 0.00 | l |
2014 | 0.00 | h | ----- | z | 1.30 | l | 0.06 | l | ----- | z | 0.00 | f | 1.78 | b | 3.64 | l | 4.51 | h | 1.61 | l | 0.00 | r | 0.86 | s | 1.78 | k |
2015 | 1.56 | l | 1.63 | g | 0.25 | q | 1.17 | l | ----- | z | ----- | z | 0.43 | q | 0.26 | j | 0.40 | l | 2.11 | h | ----- | z | 1.20 | g | 0.00 | l |
2016 | ----- | z | ----- | z | ----- | z | 0.53 | 0.16 | 0.65 | 0.50 | j | 0.87 | h | 0.38 | j | ----- | z | ----- | z | 1.76 | i | 1.34 | i | |||
2017 | 3.03 | e | 1.27 | g | 0.75 | 0.07 | c | 0.26 | 0.00 | 3.73 | g | 1.04 | g | 0.68 | j | 0.00 | a | 0.00 | n | 0.23 | l | 4.11 | f | |||
2018 | 0.57 | l | 0.30 | i | 0.15 | g | 0.00 | i | 0.03 | l | 0.75 | l | 3.62 | m | 2.07 | h | 0.27 | l | 4.35 | g | 0.42 | j | 0.19 | j | 0.00 | l |
2019 | 1.68 | l | 6.01 | j | 0.86 | l | 0.22 | i | 0.40 | i | 0.00 | j | 0.25 | i | 0.34 | h | 3.86 | h | 0.00 | l | 2.25 | a | 2.30 | k | 2.25 | k |
2020 | 0.17 | j | 2.72 | h | 2.48 | h | 0.12 | p | 0.02 | m | 0.00 | h | 0.16 | i | 0.47 | o | 0.10 | i | 0.00 | h | 0.15 | m | 0.31 | o | 0.00 | l |
2021 | 1.36 | S | 0.27 | h | 0.45 | j | 0.10 | l | 0.02 | l | 0.07 | h | 5.70 | h | 3.06 | h | 1.57 | j | 0.73 | k | 0.00 | k | 2.88 | j | 0.00 | l |
2022 | 1.20 | l | 1.10 | l | 0.80 | h | 0.00 | j | 0.00 | m | 0.90 | h | 1.99 | S | 2.65 | g | 1.48 | i | 1.24 | h | 0.34 | m | 2.57 | k | 0.00 | l |
2023 | 3.27 | i | 2.05 | h | 2.23 | q | 0.00 | l | 0.12 | f | 0.00 | e | 0.00 | h | 0.64 | e | 3.02 | d | 0.00 | g | 0.26 | h | 1.69 | g | 3.66 | i |
2024 | 1.25 | d | 3.73 | a | 0.45 | n | 0.10 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.98 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.50 | 1.46 | 1.53 | 0.55 | 0.24 | 0.21 | 1.34 | 1.96 | 1.14 | 0.90 | 0.95 | 1.65 | 13.99 | |||||||||||||
S.D. | 1.46 | 1.26 | 1.45 | 0.82 | 0.41 | 0.45 | 1.14 | 1.46 | 1.17 | 1.41 | 1.13 | 1.71 | 5.15 | |||||||||||||
SKEW | 1.93 | 1.31 | 1.19 | 2.70 | 2.62 | 3.41 | 1.36 | 0.86 | 1.43 | 3.46 | 1.69 | 1.49 | 0.82 | |||||||||||||
MAX | 8.93 | 6.19 | 6.47 | 4.83 | 2.07 | 2.42 | 5.01 | 6.25 | 5.46 | 9.40 | 5.23 | 7.27 | 28.02 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 5.09 | |||||||||||||
YRS | 81 | 81 | 79 | 81 | 78 | 79 | 79 | 83 | 81 | 84 | 79 | 74 | 48 |