YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1936 | 5.02 | s | 2.79 | 0.38 | 0.45 | 2.41 | 0.72 | 0.35 | 0.17 | ----- | z | ----- | z | ----- | z | 1.97 | b | 9.24 | d | |||||||
1937 | 2.22 | a | 4.57 | 3.39 | 2.37 | 0.90 | 1.90 | s | 0.00 | 0.00 | 0.04 | 2.20 | 7.26 | 5.08 | 28.03 | a | ||||||||||
1938 | 3.00 | 5.65 | 4.60 | 1.01 | 0.42 | 0.39 | 0.54 | 0.00 | 0.46 | 0.20 | 1.95 | 1.93 | 20.15 | |||||||||||||
1939 | 2.47 | 1.42 | 2.95 | 0.60 | 0.84 | 0.12 | 0.18 | 0.00 | 1.74 | 0.43 | 0.04 | 7.21 | 18.00 | |||||||||||||
1940 | 3.38 | 6.97 | 4.39 | 0.60 | 0.53 | 0.90 | ----- | z | 0.10 | 1.39 | 1.87 | 0.97 | 6.65 | 27.75 | a | |||||||||||
1941 | 4.26 | 2.87 | 2.66 | 2.81 | 1.45 | 0.95 | 1.07 | 0.56 | 0.65 | 0.47 | 2.20 | 7.23 | 27.18 | |||||||||||||
1942 | 2.56 | 3.54 | 0.18 | 1.26 | 3.78 | 0.46 | 0.00 | 0.20 | 0.06 | 0.62 | 6.43 | 4.95 | 24.04 | |||||||||||||
1943 | 5.63 | 1.05 | 1.94 | 1.14 | 0.27 | 0.75 | 0.17 | 0.01 | 0.00 | 2.93 | 1.35 | 0.70 | 15.94 | |||||||||||||
1944 | 2.33 | 1.79 | 2.06 | 0.82 | 0.51 | 1.06 | 1.33 | 0.70 | 0.00 | 0.67 | 3.87 | 1.37 | 16.51 | |||||||||||||
1945 | 0.81 | 3.13 | 1.62 | 0.69 | 4.05 | 0.30 | 0.00 | 0.27 | 0.03 | 1.91 | 3.94 | 5.44 | 22.19 | |||||||||||||
1946 | 2.74 | 2.06 | a | 0.76 | 0.32 | 0.78 | 0.53 | 1.54 | 0.00 | 0.11 | 1.63 | 4.61 | 1.13 | 16.21 | ||||||||||||
1947 | 1.17 | x | 1.62 | 2.99 | 0.47 | 0.24 | 0.64 | 0.44 | 0.23 | 0.00 | 2.81 | 0.89 | 0.74 | 11.07 | a | |||||||||||
1948 | 5.91 | 1.44 | 1.67 | 2.46 | 1.37 | 1.09 | 0.22 | 0.17 | 0.95 | 1.01 | 2.82 | 3.85 | 22.96 | |||||||||||||
1949 | 0.39 | 2.56 | 1.03 | 0.34 | 1.73 | j | 0.32 | 0.01 | 0.03 | 0.34 | 0.76 | 1.67 | 1.01 | 8.46 | a | |||||||||||
1950 | 6.40 | 0.90 | 3.56 | 0.83 | 0.33 | 0.95 | 0.00 | 1.74 | 0.18 | 7.41 | 2.31 | 3.97 | 28.58 | |||||||||||||
1951 | 5.95 | 3.12 | 0.29 | 2.05 | 0.41 | 0.00 | 0.00 | 0.84 | 0.07 | 2.02 | 4.10 | 8.14 | 26.99 | |||||||||||||
1952 | 4.88 | 2.83 | 1.84 | 0.81 | 0.86 | 1.74 | 0.83 | 0.01 | 0.37 | 0.33 | 1.79 | 8.49 | 24.78 | |||||||||||||
1953 | 6.67 | 1.21 | 2.43 | 0.78 | 3.40 | 0.72 | 0.00 | 0.22 | 0.02 | 1.47 | 3.82 | 1.75 | 22.49 | |||||||||||||
1954 | 11.01 | 2.60 | 2.03 | 1.39 | b | 0.00 | 1.04 | 0.00 | 1.66 | 0.64 | 0.39 | 1.08 | 2.49 | 24.33 | ||||||||||||
1955 | 1.78 | 0.57 | 0.54 | 0.46 | 0.02 | 0.00 | 0.00 | 0.20 | 0.09 | 0.77 | 5.22 | 11.16 | 20.81 | |||||||||||||
1956 | 7.72 | 4.48 | 0.94 | 0.60 | 0.55 | 0.10 | 0.09 | 0.07 | 0.82 | 4.11 | 0.11 | 1.06 | 20.65 | |||||||||||||
1957 | 3.21 | 3.04 | 4.81 | 0.70 | 1.59 | 0.00 | 0.09 | 0.04 | 0.88 | 3.22 | 2.85 | 5.53 | 25.96 | |||||||||||||
1958 | 5.89 | 7.60 | 1.74 | 0.53 | 0.82 | 4.44 | 1.84 | 0.64 | 0.23 | 0.49 | 1.18 | 2.34 | 27.74 | |||||||||||||
1959 | 4.70 | 3.08 | 1.21 | 0.04 | 0.09 | 0.00 | 0.00 | 0.39 | 0.42 | 0.09 | 0.00 | 1.25 | 11.27 | |||||||||||||
1960 | 2.31 | 7.30 | 3.29 | 0.32 | 1.56 | 1.14 | 0.01 | 0.00 | 0.00 | 0.34 | 6.00 | 2.94 | 25.21 | |||||||||||||
1961 | 2.12 | 3.55 | 3.22 | 0.51 | 0.94 | 0.39 | 0.06 | 0.50 | 1.65 | 1.31 | 3.29 | 2.29 | 19.83 | |||||||||||||
1962 | 1.71 | 2.70 | 1.56 | 0.70 | 1.52 | 0.00 | 0.05 | 0.75 | 0.48 | 5.78 | 4.03 | 3.65 | 22.93 | |||||||||||||
1963 | 1.83 | 3.55 | 1.68 | 3.18 | 1.56 | 0.15 | 0.11 | 0.08 | 0.07 | 1.37 | 4.60 | 1.28 | 19.46 | |||||||||||||
1964 | 6.21 | 0.38 | 1.46 | 0.11 | 0.27 | 0.62 | 0.44 | 0.02 | 0.19 | 0.39 | 3.24 | 11.90 | 25.23 | |||||||||||||
1965 | 4.48 | 0.82 | 0.01 | 2.56 | 0.23 | 0.32 | 0.61 | 2.61 | 0.33 | 0.04 | 2.25 | 2.99 | 17.25 | |||||||||||||
1966 | 6.52 | 0.51 | 1.81 | 0.74 | 0.76 | 0.33 | 0.13 | 0.03 | 1.59 | 0.20 | 3.73 | 5.11 | 21.46 | |||||||||||||
1967 | 6.27 | 0.21 | 2.77 | 1.60 | 0.02 | 3.22 | 0.35 | 0.33 | 0.17 | 1.62 | 1.51 | 5.43 | 23.50 | |||||||||||||
1968 | 4.23 | 3.16 | 1.28 | 0.07 | 0.24 | 0.53 | 0.00 | 0.67 | 0.13 | 1.34 | 2.99 | 5.20 | 19.84 | |||||||||||||
1969 | 7.98 | 1.85 | 0.23 | 0.64 | 0.52 | 1.31 | 0.53 | 0.00 | 0.24 | 1.45 | 0.55 | 8.82 | 24.12 | |||||||||||||
1970 | 10.44 | 2.28 | 0.99 | 0.65 | 0.37 | 0.98 | 0.41 | 0.00 | 0.09 | 1.79 | 8.15 | 8.92 | 35.07 | |||||||||||||
1971 | 4.01 | 0.29 | 5.21 | 0.96 | 1.49 | 0.12 | 0.06 | 0.38 | 0.69 | 0.66 | 3.97 | 2.77 | c | 20.61 | ||||||||||||
1972 | 7.30 | 3.12 | a | 2.64 | a | 1.20 | 0.96 | 1.43 | 0.00 | 0.39 | 2.47 | 0.66 | 1.77 | 6.15 | 28.09 | |||||||||||
1973 | 4.17 | 1.28 | b | 0.66 | 0.78 | 0.34 | 0.00 | 0.02 | 0.00 | 1.71 | 3.86 | 7.17 | a | 5.15 | d | 25.14 | ||||||||||
1974 | 7.13 | 2.62 | 3.33 | a | 3.92 | 0.05 | 0.14 | 0.79 | 0.04 | 0.00 | 0.42 | 1.51 | 2.17 | 22.12 | ||||||||||||
1975 | 2.74 | a | 7.13 | a | 6.90 | c | 0.78 | 0.23 | 0.19 | 0.58 | 0.25 | 0.02 | 2.81 | a | 2.25 | a | 2.17 | 26.05 | ||||||||
1976 | 0.72 | 2.20 | d | 0.79 | a | 1.01 | a | 0.15 | 0.40 | 1.03 | 2.14 | 1.30 | 0.15 | 0.56 | 0.21 | 10.66 | ||||||||||
1977 | 1.23 | a | 1.62 | 1.01 | 0.15 | 1.57 | 1.45 | 0.27 | 0.10 | 1.88 | 0.52 | 4.58 | 6.17 | c | 20.55 | |||||||||||
1978 | 3.99 | c | 2.09 | a | 2.84 | b | 1.72 | b | 0.24 | a | 1.50 | 0.90 | 1.24 | 2.39 | 0.00 | 1.00 | 0.88 | 18.79 | ||||||||
1979 | 1.98 | b | 3.86 | d | 0.93 | b | 2.02 | c | 1.61 | 0.02 | 1.03 | 1.08 | 0.52 | 3.38 | 3.86 | b | 3.34 | d | 23.63 | |||||||
1980 | 3.97 | b | 3.81 | b | 1.24 | a | 1.51 | 0.49 | 1.11 | 0.00 | 0.00 | 0.13 | 0.65 | 1.04 | S | 4.99 | b | 18.94 | ||||||||
1981 | 1.77 | a | 2.07 | b | 1.02 | 0.81 | 0.40 | 0.02 | 0.00 | 0.00 | 0.50 | 2.06 | 7.21 | a | 7.82 | c | 23.68 | |||||||||
1982 | 2.38 | m | 4.32 | i | 3.09 | i | 0.51 | h | 0.00 | a | 2.09 | 0.11 | 0.10 | c | 0.36 | 3.16 | 3.75 | j | 7.86 | 13.68 | e | |||||
1983 | 2.11 | b | 4.81 | f | 5.51 | d | 0.94 | c | 0.52 | a | 0.00 | 0.03 | 3.61 | b | 0.82 | 0.56 | d | 6.77 | d | 6.22 | e | 27.09 | a | |||
1984 | 0.26 | c | 2.63 | d | 1.75 | c | 1.58 | c | 0.17 | 0.10 | 0.12 | a | 0.49 | 0.77 | i | 1.91 | 9.56 | e | 0.72 | d | 19.29 | a | ||||
1985 | 0.17 | d | 2.40 | c | 1.89 | b | 0.02 | 0.75 | 0.33 | 1.18 | a | 0.39 | 1.17 | a | 1.88 | b | 2.49 | f | 1.75 | b | 11.93 | a | ||||
1986 | 3.74 | f | 8.16 | e | 2.12 | c | 0.95 | 0.85 | a | 0.55 | b | 0.00 | 0.00 | 2.07 | b | 1.24 | b | 0.89 | b | 1.68 | g | 16.83 | b | |||
1987 | 3.60 | d | 2.97 | d | 1.77 | h | 0.63 | 0.51 | b | 0.05 | a | 0.55 | a | 0.00 | 0.00 | 0.33 | a | 1.54 | d | 5.91 | c | 16.09 | a | |||
1988 | 3.69 | h | 0.21 | a | 0.28 | a | 0.94 | c | 0.99 | f | 1.21 | a | 0.00 | 0.92 | b | 0.00 | 0.14 | 5.98 | e | 1.51 | d | 11.19 | b | |||
1989 | 1.60 | f | 0.45 | i | 4.97 | d | 0.85 | c | 1.31 | b | 0.34 | a | 0.00 | 1.63 | 2.28 | a | 1.77 | a | 0.72 | a | 0.21 | c | 14.08 | b | ||
1990 | 3.97 | f | 1.45 | a | 1.17 | b | 1.09 | c | 2.64 | 0.20 | a | 0.42 | a | 0.58 | a | 0.35 | a | 0.70 | a | 1.32 | d | 0.79 | a | 10.71 | a | |
1991 | 1.01 | d | 2.25 | 3.35 | c | 1.53 | c | 1.16 | b | 0.63 | a | 0.57 | 0.62 | 0.08 | 0.66 | 2.81 | b | 1.55 | b | 16.22 | ||||||
1992 | 1.40 | c | 1.67 | e | 0.89 | b | 1.63 | a | 0.38 | a | 2.35 | a | 0.76 | b | 0.00 | 0.08 | 1.87 | a | 1.31 | b | 5.27 | e | 17.61 | |||
1993 | 5.45 | f | 1.92 | b | 2.28 | a | 3.04 | c | 2.47 | a | 1.47 | 0.02 | 1.33 | 0.37 | 0.52 | c | 0.66 | 3.53 | a | 17.61 | a | |||||
1994 | 1.38 | e | 1.53 | f | 0.31 | a | 0.48 | a | 1.23 | d | 0.05 | a | 0.00 | 0.00 | 0.08 | 0.06 | a | 5.92 | e | 1.79 | f | 9.51 | b | |||
1995 | 9.03 | h | 1.29 | c | 6.97 | b | 3.31 | b | 2.06 | a | 1.87 | c | 2.15 | a | 0.00 | 0.00 | 0.03 | 0.42 | 8.44 | m | 18.10 | b | ||||
1996 | 7.67 | n | 2.89 | d | 1.55 | b | 2.43 | a | 1.89 | a | 0.24 | 0.30 | a | 0.18 | 0.48 | 1.34 | 3.83 | a | 11.46 | c | 26.59 | a | ||||
1997 | 5.92 | d | 0.74 | e | 0.98 | d | 1.28 | c | 0.49 | c | 1.26 | a | 1.31 | a | 1.10 | 0.75 | 1.54 | 2.42 | d | 1.60 | c | 19.39 | ||||
1998 | 7.66 | g | 5.62 | e | 4.54 | d | 1.53 | b | 3.19 | e | 0.41 | a | 0.17 | 0.00 | 0.65 | a | 1.05 | e | 8.90 | d | 1.36 | c | 27.42 | a | ||
1999 | 4.70 | f | 7.80 | h | 1.01 | d | 0.19 | d | 0.07 | b | 0.01 | 0.00 | 0.46 | d | 0.00 | 1.10 | 2.77 | j | 1.20 | d | 4.04 | c | ||||
2000 | 6.94 | i | 4.38 | i | 1.40 | f | 2.39 | d | 0.35 | g | 0.41 | 0.11 | b | 0.22 | b | 0.16 | c | 1.51 | g | 0.75 | b | 1.06 | d | 5.10 | e | |
2001 | 0.98 | d | 0.58 | g | 0.97 | e | 0.62 | d | 0.37 | 0.14 | 0.93 | 0.00 | 0.50 | 0.28 | 5.30 | g | 4.96 | k | 4.79 | c | ||||||
2002 | 3.22 | j | 1.57 | e | 0.57 | f | 1.77 | b | 0.29 | b | 0.19 | b | 0.38 | d | 0.01 | 0.23 | b | 0.00 | 3.63 | c | 12.89 | g | 8.07 | c | ||
2003 | 3.65 | i | 0.82 | e | 3.23 | f | 2.26 | d | 0.21 | b | 0.02 | 1.49 | 0.66 | a | 0.06 | 0.00 | 0.84 | d | 5.24 | f | 6.36 | c | ||||
2004 | 3.15 | e | 4.44 | e | 1.44 | a | 0.59 | a | 0.58 | b | 0.16 | 1.29 | a | 0.44 | a | 0.00 | 3.03 | d | 1.15 | b | 5.35 | c | 21.62 | |||
2005 | 2.19 | i | 0.65 | g | 2.03 | d | 1.51 | h | 2.99 | h | 0.38 | b | 0.09 | b | 0.00 | 0.07 | b | 0.42 | i | 5.67 | h | 10.89 | h | 2.57 | g | |
2006 | 9.41 | k | 2.13 | d | 1.76 | f | 1.73 | h | 0.60 | e | 0.30 | d | 0.00 | a | 0.20 | b | 0.00 | c | 0.08 | 3.23 | j | 5.42 | e | 8.73 | d | |
2007 | 1.44 | d | 4.67 | d | 0.50 | 0.69 | f | 0.59 | 0.07 | 0.56 | b | 0.06 | 0.00 | 3.40 | g | 0.85 | e | 2.91 | j | 8.74 | c | |||||
2008 | 5.95 | i | 2.41 | g | 0.51 | d | 0.56 | 1.65 | c | 0.02 | b | 0.00 | 0.10 | 0.00 | 0.81 | b | 1.98 | g | 1.62 | h | 3.65 | d | ||||
2009 | 0.86 | c | 3.20 | b | 1.30 | i | 0.23 | 1.60 | b | 2.66 | i | 0.00 | j | 0.17 | k | 0.00 | h | 1.40 | i | 0.75 | k | 1.93 | h | 5.89 | h | |
2010 | 2.19 | m | 1.46 | j | 1.63 | j | 2.40 | i | 0.53 | l | 0.45 | j | 0.27 | i | 0.01 | j | 0.68 | j | 3.25 | m | 0.64 | m | 3.45 | m | 0.00 | l |
2011 | 0.97 | n | 1.25 | m | 3.86 | k | 0.44 | k | 1.74 | l | 1.60 | i | 0.36 | l | 0.00 | k | 0.02 | m | 1.15 | m | 1.10 | l | 0.56 | k | 0.00 | l |
2012 | 2.22 | p | 1.16 | l | 3.30 | m | 0.90 | m | 0.13 | l | 0.00 | m | 0.00 | m | 0.00 | k | 0.00 | n | 0.58 | g | 4.16 | h | 3.74 | h | 0.00 | l |
2013 | 2.86 | f | 0.55 | g | 0.96 | S | 1.29 | f | 1.96 | f | 0.30 | f | 1.79 | j | 0.55 | h | 1.65 | g | 0.00 | q | 0.53 | f | 0.48 | f | 0.00 | l |
2014 | 0.78 | k | 2.58 | i | 4.12 | j | 0.28 | g | 0.79 | j | 0.20 | i | 0.35 | i | 0.01 | h | 1.94 | i | 3.10 | g | 1.16 | h | 4.61 | g | 0.00 | l |
2015 | 1.24 | h | 5.68 | S | 0.78 | e | 0.36 | g | 1.43 | i | 0.32 | h | 0.41 | h | 0.41 | h | 0.07 | j | 0.56 | i | 0.81 | g | 7.31 | e | 8.09 | j |
2016 | 6.30 | g | 1.58 | e | 4.87 | d | 1.10 | h | 0.48 | k | 0.70 | h | 0.00 | k | 0.04 | g | 0.00 | j | 6.19 | h | 2.34 | e | 4.10 | g | 8.79 | i |
2017 | 7.44 | i | 6.65 | f | 2.57 | g | 1.86 | i | 0.58 | h | 0.58 | h | 0.01 | k | 1.00 | h | 0.16 | j | 0.36 | i | 2.42 | e | 0.59 | S | 2.42 | k |
2018 | 2.21 | f | 0.63 | e | 1.91 | g | 1.83 | f | 2.17 | g | 0.04 | g | 0.02 | i | 0.00 | h | 0.00 | j | 0.46 | g | 2.83 | h | 1.81 | n | 0.63 | k |
2019 | ----- | z | 5.30 | j | 1.20 | h | 1.38 | e | 1.27 | g | 0.00 | j | 0.00 | i | 0.58 | i | 1.01 | f | 0.32 | i | 0.65 | S | 2.54 | f | 2.03 | j |
2020 | 3.41 | f | 0.03 | h | 0.29 | l | 0.29 | q | 0.87 | h | 0.88 | f | 0.88 | i | 0.15 | n | 0.00 | k | 0.00 | j | 1.81 | k | 2.85 | j | 0.00 | l |
2021 | 2.50 | n | 2.39 | t | 2.02 | n | 0.27 | l | 0.33 | w | 0.41 | u | 0.02 | S | 1.02 | w | ----- | z | 2.05 | q | ----- | z | 2.60 | v | 0.00 | l |
2022 | ----- | z | 0.00 | y | 0.58 | y | ----- | z | ----- | z | 0.98 | o | 0.15 | n | 0.21 | x | ----- | z | ----- | z | 1.36 | t | 5.13 | S | 0.00 | l |
2023 | 4.33 | k | 1.38 | g | 4.57 | f | 0.78 | j | 1.15 | h | 0.90 | i | 0.00 | l | 0.42 | i | 0.86 | i | 0.46 | i | 1.89 | i | 3.05 | h | 0.00 | l |
2024 | 4.25 | g | 2.08 | g | 1.93 | l | 0.12 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.74 | 2.69 | 2.11 | 1.15 | 0.95 | 0.66 | 0.40 | 0.44 | 0.52 | 1.34 | 2.96 | 4.09 | 21.86 | |||||||||||||
S.D. | 2.54 | 1.85 | 1.62 | 0.87 | 0.92 | 0.79 | 0.51 | 0.66 | 0.66 | 1.38 | 2.32 | 2.97 | 4.57 | |||||||||||||
SKEW | 0.79 | 1.17 | 1.13 | 1.15 | 1.54 | 2.30 | 1.44 | 2.51 | 1.53 | 1.96 | 0.97 | 0.73 | 0.00 | |||||||||||||
MAX | 11.01 | 8.16 | 6.97 | 3.92 | 4.05 | 4.44 | 2.15 | 3.61 | 2.47 | 7.41 | 9.56 | 11.90 | 35.07 | |||||||||||||
MIN | 0.17 | 0.21 | 0.01 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 10.66 | |||||||||||||
YRS | 56 | 67 | 69 | 71 | 70 | 72 | 72 | 73 | 71 | 69 | 68 | 65 | 45 |