YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.31 | 0.80 | 0.36 | 1.47 | 1.56 | 1.20 | 5.70 | f | ||||||
1935 | 1.72 | 0.85 | 0.49 | 1.40 | 0.67 | 1.10 | 0.53 | 0.02 | 0.28 | 1.18 | 0.69 | 1.94 | 10.87 | |||||||||||||
1936 | 3.05 | 1.10 | 0.24 | 1.00 | 1.37 | 0.93 | 0.06 | 0.02 | 1.00 | 0.03 | 0.58 | 1.49 | 10.87 | |||||||||||||
1937 | 1.68 | a | 1.07 | 2.18 | 1.87 | 0.27 | 3.21 | 0.69 | 0.14 | 0.52 | 0.98 | 2.25 | 0.55 | 15.41 | ||||||||||||
1938 | 1.59 | 3.18 | 0.99 | 1.47 | 0.45 | 1.75 | 0.77 | 0.01 | 0.74 | 1.20 | 0.80 | 0.35 | 13.30 | |||||||||||||
1939 | 0.65 | 1.53 | 0.71 | 0.04 | 0.85 | 0.79 | 0.53 | 0.18 | 0.56 | 0.79 | 0.06 | 2.25 | 8.94 | |||||||||||||
1940 | 2.29 | 2.11 | 2.02 | 2.04 | 0.20 | 0.17 | 0.38 | 0.00 | 2.37 | 1.30 | 1.20 | a | 1.06 | a | 15.14 | |||||||||||
1941 | 1.02 | 0.98 | 0.56 | 1.24 | 2.72 | 1.92 | 1.01 | 2.45 | 1.30 | 1.43 | 2.28 | 1.93 | 18.84 | |||||||||||||
1942 | 1.85 | s | 1.54 | 0.22 | 0.28 | 2.61 | 1.84 | 0.14 | 0.38 | 0.58 | 0.78 | 3.67 | 2.89 | 14.93 | a | |||||||||||
1943 | 2.42 | 0.31 | 0.95 | 1.58 | 0.44 | 1.66 | 0.15 | 0.99 | 0.00 | 2.71 | 0.99 | 0.30 | a | 12.50 | ||||||||||||
1944 | 0.30 | b | 1.27 | a | 0.20 | a | 0.99 | 0.91 | 2.29 | 0.42 | 0.10 | 0.48 | 0.66 | 1.78 | 1.03 | 10.43 | ||||||||||
1945 | 1.36 | 1.02 | 0.91 | 0.19 | 3.62 | 0.00 | 0.05 | 0.29 | 0.83 | 1.05 | 2.02 | 2.80 | 14.14 | |||||||||||||
1946 | 1.14 | 0.23 | a | 1.39 | 0.17 | 0.98 | ----- | z | 0.08 | 0.95 | 0.58 | 1.87 | b | 1.60 | 0.53 | 9.52 | a | |||||||||
1947 | 0.57 | 0.85 | 1.56 | 1.07 | 1.11 | 2.32 | 2.03 | 0.49 | 0.44 | 2.97 | 1.78 | 0.61 | 15.80 | |||||||||||||
1948 | 1.49 | 1.79 | 1.70 | 2.06 | 3.61 | 2.37 | 0.80 | 0.81 | 1.55 | 0.29 | 0.90 | a | 2.94 | 20.31 | ||||||||||||
1949 | 0.28 | 0.75 | 1.59 | 0.22 | 0.60 | 0.02 | 0.00 | 0.00 | 0.08 | 0.00 | 2.15 | a | 0.70 | 6.39 | ||||||||||||
1950 | 3.17 | 0.28 | 2.46 | 1.07 | 0.25 | 2.25 | 0.05 | 0.33 | 0.35 | 4.57 | 1.82 | 1.77 | 18.37 | |||||||||||||
1951 | 1.91 | 1.55 | 0.95 | 0.59 | 1.58 | 0.33 | 0.75 | 0.10 | 0.36 | 2.47 | 2.21 | 1.49 | a | 14.29 | ||||||||||||
1952 | 0.93 | 1.53 | d | 0.94 | 0.40 | 0.81 | 3.57 | 0.00 | 1.60 | 1.17 | 0.00 | 0.29 | 2.19 | a | 13.43 | |||||||||||
1953 | 2.82 | 1.93 | 0.73 | a | 1.13 | 2.30 | 1.43 | b | 0.00 | 1.34 | 0.03 | 0.88 | 2.33 | 2.26 | a | 17.18 | ||||||||||
1954 | 2.19 | 0.41 | 0.63 | 0.21 | 1.63 | 2.21 | 0.00 | 0.73 | 1.56 | 0.55 | 0.58 | 0.37 | 11.07 | |||||||||||||
1955 | 0.66 | 0.37 | a | 0.74 | 1.90 | 1.32 | 0.55 | 0.59 | 0.00 | 0.68 | 1.21 | 1.69 | 3.79 | 13.50 | ||||||||||||
1956 | 2.75 | 1.96 | 0.52 | a | 0.02 | a | 3.86 | a | 1.65 | 0.14 | 0.16 | 0.07 | 2.53 | a | 0.25 | 0.40 | 14.31 | |||||||||
1957 | 0.81 | 1.10 | 3.14 | 0.96 | 5.00 | 0.20 | 0.51 | 0.00 | 1.91 | 1.68 | 0.34 | 3.12 | 18.77 | |||||||||||||
1958 | 1.77 | 2.09 | 0.88 | 0.67 | 1.30 | 3.11 | 0.47 | 0.04 | 0.70 | 0.12 | 1.75 | 1.78 | 14.68 | |||||||||||||
1959 | 1.30 | 1.33 | 1.21 | 0.36 | 1.31 | 0.63 | 0.21 | 0.12 | 1.82 | 0.88 | a | 0.48 | 0.79 | 10.44 | ||||||||||||
1960 | 1.95 | 1.55 | 2.78 | 1.30 | 1.89 | 0.13 | 0.22 | 0.50 | 0.19 | 0.45 | 2.68 | 0.40 | 14.04 | |||||||||||||
1961 | 0.81 | 2.10 | 1.81 | 0.81 | 2.08 | a | 1.16 | 0.05 | 0.42 | 0.00 | 1.23 | 3.50 | 1.41 | 15.38 | ||||||||||||
1962 | 0.43 | 1.66 | 1.13 | 0.67 | 3.65 | 0.31 | 0.05 | 1.13 | 0.30 | 2.62 | 1.11 | a | 1.36 | 14.42 | ||||||||||||
1963 | 1.26 | 0.94 | b | 1.98 | 2.27 | 1.66 | 1.58 | 0.36 | 0.23 | 1.26 | 1.01 | 2.50 | 0.95 | 16.00 | ||||||||||||
1964 | 1.15 | 0.12 | 0.39 | 0.18 | 0.06 | ----- | z | 0.26 | 0.13 | 0.12 | 0.58 | 1.61 | 5.70 | 10.30 | a | |||||||||||
1965 | 1.87 | 0.14 | ----- | z | 1.17 | 0.28 | 1.83 | 0.10 | 1.14 | 0.08 | 0.32 | 2.20 | 0.11 | 9.24 | a | |||||||||||
1966 | 1.40 | 0.34 | 0.52 | 0.00 | 0.19 | 0.68 | 1.54 | 0.00 | 1.19 | 0.53 | 2.96 | 2.58 | 11.93 | |||||||||||||
1967 | 1.78 | 0.00 | 0.83 | 1.87 | 0.52 | 0.75 | 0.00 | 0.00 | 0.47 | 1.08 | 0.57 | 0.70 | 8.57 | |||||||||||||
1968 | 1.40 | 1.23 | 0.27 | 0.34 | 1.76 | 0.42 | 0.28 | 1.71 | 0.40 | 0.60 | 2.09 | 2.06 | 12.56 | |||||||||||||
1969 | 2.52 | 0.79 | 0.90 | 0.81 | 1.63 | 3.13 | 0.14 | 0.00 | 1.02 | 1.10 | 0.50 | 1.66 | 14.20 | |||||||||||||
1970 | 3.11 | 0.61 | 0.76 | 0.31 | 0.40 | 1.52 | 0.00 | 0.04 | 0.31 | 1.15 | 2.41 | 0.57 | 11.19 | |||||||||||||
1971 | 1.79 | 0.36 | 1.34 | 0.88 | 1.97 | 0.38 | 0.28 | 0.61 | 0.62 | 0.85 | 1.43 | 1.73 | 12.24 | |||||||||||||
1972 | 1.59 | 0.32 | 2.27 | 0.72 | 1.71 | 2.80 | 0.00 | 0.31 | 0.43 | 0.66 | 0.52 | a | 1.43 | 12.76 | ||||||||||||
1973 | 0.84 | 0.70 | 0.55 | 0.89 | 1.12 | 0.00 | 0.05 | 0.13 | 1.71 | 1.39 | 4.30 | 1.30 | 12.98 | |||||||||||||
1974 | 1.38 | 0.36 | 1.60 | 0.70 | 0.41 | 0.22 | 0.34 | 0.00 | 0.00 | 0.40 | a | 0.76 | 2.07 | 8.24 | ||||||||||||
1975 | 1.30 | a | 1.75 | 1.95 | 0.12 | 0.18 | a | 1.30 | 1.06 | 1.79 | 0.00 | 1.72 | 0.30 | 1.29 | 12.76 | |||||||||||
1976 | 1.01 | 1.20 | 0.28 | 1.99 | 0.48 | 0.78 | 0.00 | 3.93 | 0.33 | 0.15 | 0.54 | 0.24 | 10.93 | |||||||||||||
1977 | 0.37 | 0.64 | 0.10 | 0.04 | 2.82 | 0.09 | 0.00 | 0.93 | 1.44 | 0.51 | 2.43 | 2.50 | 11.87 | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | 3.15 | 0.57 | 1.28 | 0.63 | 1.40 | 0.99 | 0.00 | ----- | z | ----- | z | 8.02 | e | |||||||
1979 | 2.10 | 1.95 | 1.32 | 1.53 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.87 | 2.03 | 1.06 | 11.86 | e | |||||||
1980 | 2.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.71 | 1.52 | 2.15 | 7.15 | h | ||||
1981 | 1.97 | 1.14 | 1.38 | 0.30 | g | 1.75 | 1.11 | 0.15 | ----- | z | 1.91 | ----- | z | ----- | z | ----- | z | 9.41 | e | |||||||
1982 | 0.70 | h | 1.63 | ----- | z | 0.73 | i | ----- | z | 1.99 | b | 0.69 | a | 0.51 | a | 1.76 | a | 1.94 | j | 0.65 | 1.31 | a | 8.54 | e | ||
1983 | 1.50 | c | 2.74 | d | 2.91 | d | 1.25 | 2.15 | 1.48 | 1.68 | 2.66 | b | 0.20 | k | 1.40 | b | 3.04 | a | 2.15 | c | 22.96 | a | ||||
1984 | 0.56 | 1.68 | a | 1.84 | d | 0.96 | c | 1.15 | 1.90 | 0.26 | a | 0.16 | 0.00 | 1.31 | a | 5.47 | 0.10 | c | 15.39 | |||||||
1985 | 0.15 | a | 0.48 | d | 0.60 | ----- | z | 1.78 | 0.80 | d | 0.14 | 0.09 | 0.82 | 0.72 | 1.19 | c | 0.45 | 7.22 | a | |||||||
1986 | 1.86 | k | 3.29 | a | 1.19 | 0.32 | 0.56 | a | 0.00 | 0.00 | 0.10 | a | 2.40 | a | 0.95 | 1.84 | 0.35 | 11.00 | a | |||||||
1987 | ----- | z | 2.31 | a | 1.17 | 0.17 | d | 1.52 | 0.52 | 2.02 | c | 0.19 | c | 0.08 | a | 0.00 | 0.75 | b | 1.58 | 10.31 | a | |||||
1988 | 1.68 | 0.41 | 0.33 | a | 1.46 | a | 0.74 | a | 0.47 | 0.00 | 0.15 | 0.00 | b | 0.00 | 2.97 | b | 0.43 | 8.64 | ||||||||
1989 | 2.40 | 0.32 | b | 2.55 | b | 1.73 | 1.09 | a | 0.44 | 0.25 | b | 0.75 | 0.00 | 1.14 | 0.23 | 0.57 | 11.47 | |||||||||
1990 | 2.96 | 0.22 | 1.49 | e | ----- | z | 1.95 | a | 0.47 | 1.31 | 2.27 | 0.00 | 0.76 | 0.82 | 0.38 | a | 12.63 | a | ||||||||
1991 | 0.37 | ----- | z | ----- | z | ----- | z | 1.52 | e | 0.63 | 0.65 | b | 0.10 | 0.00 | 0.87 | a | 3.78 | c | 0.50 | 8.42 | c | |||||
1992 | 1.10 | c | 0.57 | a | 0.76 | t | 2.29 | b | ----- | z | 1.37 | b | ----- | z | 0.20 | 0.00 | g | 1.81 | 2.07 | 1.64 | a | 11.05 | d | |||
1993 | 1.18 | 0.62 | b | 2.11 | a | 1.08 | 3.12 | a | 1.43 | a | 0.50 | 1.07 | 0.00 | 0.30 | 0.87 | 0.55 | a | 12.83 | ||||||||
1994 | 0.83 | 0.40 | b | 0.87 | 1.63 | 1.12 | 0.52 | a | 0.00 | 0.00 | 0.35 | 0.92 | 1.70 | 1.06 | 9.40 | |||||||||||
1995 | 2.41 | 1.21 | 1.61 | 2.02 | 0.76 | 2.63 | 2.85 | 0.00 | 0.83 | 1.01 | 2.40 | 2.27 | a | 20.00 | ||||||||||||
1996 | 1.28 | b | 2.26 | 0.93 | 0.74 | 1.65 | ----- | z | 0.22 | 0.06 | 0.46 | 0.77 | 3.57 | 4.00 | 15.94 | a | ||||||||||
1997 | 1.73 | 0.46 | 1.54 | 1.82 | 0.59 | 1.49 | 1.11 | 0.35 | a | 0.93 | 1.13 | 0.80 | 0.47 | 12.42 | ||||||||||||
1998 | 2.99 | 1.54 | 1.18 | 1.17 | 5.78 | 1.93 | 1.79 | 0.43 | 0.36 | 0.51 | a | 3.26 | 1.31 | 22.25 | ||||||||||||
1999 | 2.75 | 2.19 | b | 1.41 | 0.97 | a | 0.77 | b | 0.19 | 0.21 | c | 1.11 | 0.00 | 1.74 | a | 1.49 | 0.43 | 13.26 | ||||||||
2000 | 1.97 | 1.61 | a | 1.98 | 0.90 | 0.87 | a | 0.19 | 0.20 | 0.02 | 0.21 | 1.54 | 0.80 | 0.78 | 11.07 | |||||||||||
2001 | 0.50 | a | 0.90 | 0.68 | a | 1.54 | 1.32 | ----- | z | 0.46 | 0.30 | 0.30 | 0.84 | 2.64 | b | 1.14 | b | 10.62 | a | |||||||
2002 | 0.50 | ----- | z | 0.24 | 0.91 | 0.40 | a | 0.64 | b | 0.30 | a | 0.39 | ----- | z | 0.29 | 0.33 | 2.23 | a | 6.23 | b | ||||||
2003 | 1.84 | a | 0.74 | 0.77 | 1.97 | 1.38 | b | 0.07 | a | 0.08 | 0.74 | 0.91 | 0.70 | 0.68 | 2.34 | 12.22 | ||||||||||
2004 | 1.46 | 1.45 | 0.75 | 1.19 | 2.41 | 1.52 | 0.08 | 1.38 | 0.44 | 1.69 | ----- | z | 1.82 | 14.19 | a | |||||||||||
2005 | 0.42 | 0.94 | b | 0.48 | 1.44 | 3.01 | 0.78 | 0.29 | 0.10 | 0.22 | 1.81 | ----- | z | 3.75 | 13.24 | a | ||||||||||
2006 | 3.44 | a | 0.95 | 1.38 | 1.33 | 1.52 | a | 1.91 | 0.07 | 0.58 | 0.24 | 0.54 | 2.10 | a | 1.96 | a | 16.02 | |||||||||
2007 | ----- | z | 0.85 | 0.64 | 1.53 | 0.24 | 1.57 | 0.36 | 1.07 | 1.38 | 2.82 | b | 1.36 | 0.61 | 12.43 | a | ||||||||||
2008 | ----- | z | 0.76 | ----- | z | ----- | z | 1.79 | 0.42 | a | 0.00 | 0.76 | 0.08 | 0.90 | 0.79 | 1.43 | 6.93 | c | ||||||||
2009 | 0.61 | 0.94 | a | 1.25 | 1.48 | 1.01 | 2.95 | 0.16 | 0.15 | ----- | z | ----- | z | ----- | z | ----- | z | 8.55 | d | |||||||
2010 | 2.16 | b | 1.26 | a | 0.57 | 2.43 | 3.09 | 2.22 | 0.14 | 0.03 | 1.48 | 2.43 | 1.68 | 2.83 | 20.32 | |||||||||||
2011 | 0.62 | 1.54 | 1.58 | g | 0.89 | 1.59 | 0.80 | d | 0.76 | b | 0.54 | 0.00 | 0.87 | 0.63 | 1.14 | 9.38 | a | |||||||||
2012 | 1.48 | 0.60 | 1.50 | 2.12 | 1.49 | b | 2.18 | 0.90 | 0.00 | 0.25 | 2.03 | 2.20 | 3.06 | 17.81 | ||||||||||||
2013 | 0.78 | 0.00 | 0.49 | 1.50 | 1.33 | 1.56 | 0.02 | 1.18 | c | 2.13 | 0.37 | 0.99 | 0.69 | 11.04 | ||||||||||||
2014 | 0.54 | 2.93 | 2.16 | 1.50 | 0.54 | 0.78 | 0.46 | 1.02 | 0.74 | 1.38 | 1.86 | 2.01 | 15.92 | |||||||||||||
2015 | 0.60 | 1.47 | 0.98 | 0.50 | 1.83 | 0.08 | 0.83 | 0.11 | 0.10 | x | 0.68 | d | 1.63 | 3.30 | 12.01 | a | ||||||||||
2016 | 1.91 | 0.53 | 2.09 | 0.44 | 3.44 | 0.81 | 0.86 | d | 0.13 | 0.38 | 0.31 | t | 0.81 | j | 2.26 | 12.85 | b | |||||||||
2017 | 3.12 | 1.45 | 1.47 | 0.07 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 6.04 | i | |||
2018 | 1.02 | 0.66 | 1.71 | 0.39 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.39 | i | |||
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.37 | q | 0.23 | 1.18 | 1.51 | 0.49 | i | 0.54 | 0.90 | 4.36 | g | |||||
2020 | 1.07 | 0.35 | 0.74 | 0.61 | 2.86 | 0.63 | 0.05 | 0.00 | 0.19 | 0.29 | 2.53 | 0.96 | 10.28 | |||||||||||||
2021 | 0.85 | 0.73 | 0.45 | 0.36 | 1.00 | 0.64 | 0.30 | 0.07 | 1.36 | 2.20 | 2.18 | 1.58 | 11.72 | |||||||||||||
2022 | 0.72 | 0.36 | 1.21 | 1.91 | 1.25 | 2.30 | 0.35 | 0.14 | 0.30 | 0.78 | 1.32 | 3.13 | 13.77 | |||||||||||||
2023 | 0.88 | 0.49 | 1.71 | 0.75 | 2.08 | 0.02 | 0.00 | 0.47 | 1.14 | 1.27 | 1.67 | 1.59 | 12.07 | |||||||||||||
2024 | 2.98 | 2.28 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.26 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.51 | 1.12 | 1.19 | 1.08 | 1.53 | 1.20 | 0.43 | 0.55 | 0.67 | 1.10 | 1.64 | 1.54 | 13.51 | |||||||||||||
S.D. | 0.85 | 0.75 | 0.70 | 0.69 | 1.12 | 0.91 | 0.54 | 0.71 | 0.63 | 0.81 | 1.05 | 1.05 | 3.28 | |||||||||||||
SKEW | 0.46 | 0.78 | 0.65 | 0.39 | 1.31 | 0.59 | 2.13 | 2.14 | 0.96 | 1.36 | 0.90 | 1.08 | 0.52 | |||||||||||||
MAX | 3.44 | 3.29 | 3.14 | 3.15 | 5.78 | 3.57 | 2.85 | 3.93 | 2.40 | 4.57 | 5.47 | 5.70 | 22.25 | |||||||||||||
MIN | 0.15 | 0.00 | 0.10 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.10 | 6.39 | |||||||||||||
YRS | 82 | 85 | 80 | 79 | 82 | 80 | 85 | 85 | 81 | 83 | 82 | 85 | 59 |