YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.03 | 0.00 | 0.00 | 0.07 | 0.10 | 1.32 | 0.05 | j | 2.52 | f | ||||||
1945 | 0.89 | 1.43 | 0.53 | 0.58 | 2.07 | 0.59 | 0.00 | 0.28 | 0.46 | 0.35 | 0.88 | 1.53 | 9.59 | |||||||||||||
1946 | 0.42 | 0.57 | 0.64 | 0.10 | 0.64 | 0.58 | 0.06 | 0.06 | 0.66 | 0.54 | 0.58 | 0.13 | 4.98 | |||||||||||||
1947 | 0.10 | 0.40 | 0.32 | 0.47 | 0.14 | 0.59 | 0.57 | 0.42 | 0.53 | 2.41 | 0.68 | 0.78 | 7.41 | |||||||||||||
1948 | 1.38 | 1.73 | ----- | z | ----- | z | ----- | z | 2.64 | 0.93 | 0.14 | 0.04 | 0.52 | 0.84 | 1.28 | 9.50 | c | |||||||||
1949 | 0.60 | 0.86 | 0.82 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.31 | 0.20 | 1.04 | 0.20 | 4.20 | |||||||||||||
1950 | 1.29 | 0.61 | 0.89 | 0.30 | 0.16 | 1.67 | 0.12 | 0.02 | 0.02 | 2.24 | 0.54 | 1.77 | 9.63 | |||||||||||||
1951 | 0.89 | 0.58 | 0.37 | 0.54 | 0.37 | 1.74 | 0.07 | 0.00 | 0.08 | 1.53 | 0.71 | 0.52 | 7.40 | |||||||||||||
1952 | 0.50 | 0.69 | 0.19 | 0.07 | 0.43 | 1.19 | 0.00 | 0.00 | 0.05 | 0.05 | 0.17 | 1.24 | 4.58 | |||||||||||||
1953 | 2.84 | 0.35 | 0.21 | 0.79 | 0.41 | 0.43 | 0.00 | 0.40 | 0.00 | 0.20 | 1.50 | 0.63 | 7.76 | |||||||||||||
1954 | 1.06 | 0.18 | 0.93 | 0.19 | 0.31 | 0.14 | 0.33 | 0.14 | a | 0.33 | 0.63 | 0.60 | 0.53 | 5.37 | ||||||||||||
1955 | 0.52 | 0.12 | 0.32 | 0.37 | 0.44 | 0.33 | 0.72 | 0.00 | 0.28 | 0.48 | 1.80 | 2.43 | 7.81 | |||||||||||||
1956 | 1.87 | 1.41 | 0.14 | 0.00 | 0.35 | 0.42 | 0.02 | 0.45 | 0.02 | 0.67 | 0.11 | 0.63 | 6.09 | |||||||||||||
1957 | 0.43 | 0.25 | 1.98 | 0.40 | 0.92 | 0.29 | 0.14 | 0.01 | 0.60 | 1.37 | 0.29 | 0.39 | 7.07 | |||||||||||||
1958 | 1.99 | 1.45 | 0.60 | 0.63 | 0.76 | 0.23 | 0.32 | 0.12 | 0.01 | 0.10 | 0.85 | 1.51 | 8.57 | |||||||||||||
1959 | 1.79 | 0.86 | 0.33 | 0.09 | 0.56 | 0.25 | 0.03 | 0.17 | 1.12 | 0.54 | 0.24 | 0.37 | 6.35 | |||||||||||||
1960 | 0.62 | 0.86 | 0.79 | 0.46 | 0.71 | 0.29 | 0.00 | 0.62 | 0.27 | 0.16 | 0.82 | 0.71 | 6.31 | |||||||||||||
1961 | 0.62 | 2.30 | 1.23 | 0.36 | 1.09 | 0.71 | 0.06 | 0.16 | 0.31 | 0.13 | 0.77 | a | 1.03 | 8.77 | ||||||||||||
1962 | 0.23 | 0.61 | 0.85 | 0.45 | 2.02 | 0.15 | 0.00 | 0.37 | 0.20 | 1.34 | 0.72 | 0.96 | 7.90 | |||||||||||||
1963 | 0.25 | 1.48 | 0.64 | 1.13 | 0.77 | 0.30 | 0.12 | 0.09 | 0.12 | 0.23 | 1.03 | 1.32 | 7.48 | |||||||||||||
1964 | 0.49 | 0.08 | 0.04 | 0.06 | 0.05 | 0.65 | 0.09 | 0.18 | 0.00 | 0.21 | 1.25 | 2.50 | a | 5.60 | ||||||||||||
1965 | 1.00 | 0.05 | 0.10 | 0.32 | 0.17 | 0.57 | 0.07 | 0.22 | 0.05 | 0.02 | 1.39 | 0.31 | 4.27 | |||||||||||||
1966 | 0.77 | 0.09 | 0.51 | 0.02 | 0.01 | 0.38 | 0.75 | 0.00 | 0.11 | 0.27 | 2.17 | 1.09 | a | 6.17 | ||||||||||||
1967 | 0.54 | 0.00 | 0.30 | 0.31 | 0.61 | 0.45 | 0.00 | 0.00 | 0.04 | 0.20 | 0.35 | 0.33 | 3.13 | |||||||||||||
1968 | 0.71 | 0.73 | 0.12 | 0.00 | 0.04 | 0.28 | 0.01 | 0.92 | 0.44 | 0.99 | 1.42 | 0.98 | 6.64 | |||||||||||||
1969 | 1.60 | 0.57 | 0.05 | 1.16 | 0.55 | 0.49 | 0.02 | 0.00 | 0.31 | 0.10 | 0.21 | 1.44 | 6.50 | |||||||||||||
1970 | 3.02 | 1.40 | 0.32 | 0.44 | 0.11 | 0.34 | 0.08 | 0.00 | 0.02 | 0.26 | 1.04 | 0.55 | 7.58 | |||||||||||||
1971 | 0.62 | 0.16 | 1.14 | 0.08 | 0.67 | 0.81 | 0.18 | 0.25 | 0.90 | 0.24 | 0.72 | 1.43 | 7.20 | |||||||||||||
1972 | 0.14 | 0.34 | 0.85 | 0.12 | 1.04 | 0.87 | 0.08 | 0.43 | 0.06 | 0.26 | 0.57 | 1.47 | 6.23 | |||||||||||||
1973 | 0.66 | 0.22 | 0.15 | 0.05 | 0.31 | 0.14 | 0.00 | 0.00 | 0.58 | 0.71 | 2.78 | 2.83 | 8.43 | |||||||||||||
1974 | 0.74 | 0.60 | 0.58 | 0.71 | 0.07 | 0.11 | 0.19 | 0.00 | 0.01 | 0.16 | 0.89 | 0.50 | 4.56 | |||||||||||||
1975 | 1.76 | 1.09 | 0.46 | 0.91 | 0.18 | 0.22 | 0.20 | 0.90 | 0.00 | 0.56 | 0.98 | 1.16 | 8.42 | |||||||||||||
1976 | 0.64 | 0.39 | 0.12 | 0.95 | 0.16 | 0.03 | 0.11 | 0.77 | 0.02 | 0.08 | 0.07 | 0.21 | 3.55 | |||||||||||||
1977 | 0.13 | 0.41 | 0.42 | 0.00 | 0.29 | 0.21 | 0.12 | 1.82 | 1.04 | 0.12 | 0.69 | 1.99 | 7.24 | |||||||||||||
1978 | 2.17 | 1.19 | 0.34 | 0.73 | 0.44 | 0.19 | 0.51 | 0.82 | 0.09 | 0.00 | 0.63 | 0.56 | 7.67 | |||||||||||||
1979 | 0.57 | 0.52 | 0.57 | 0.75 | 0.14 | 0.09 | 0.18 | 0.77 | 0.36 | 1.27 | 1.45 | 0.38 | 7.05 | |||||||||||||
1980 | 1.82 | 1.58 | 0.43 | 0.50 | 1.77 | 0.89 | 0.01 | 0.06 | ----- | z | 0.81 | 1.09 | 1.73 | 10.69 | a | |||||||||||
1981 | 0.42 | 0.70 | 0.75 | 0.27 | 1.15 | 0.79 | 0.14 | 0.00 | 0.57 | 0.38 | 1.09 | 0.91 | 7.17 | |||||||||||||
1982 | 0.75 | 0.61 | 0.48 | 0.71 | 0.43 | 0.70 | 0.24 | 0.08 | 0.50 | 1.59 | 0.65 | 1.65 | 8.39 | |||||||||||||
1983 | 1.23 | 1.61 | 1.13 | 0.39 | 0.20 | 0.47 | 0.22 | 0.07 | 0.10 | 0.64 | 2.30 | 1.47 | 9.83 | |||||||||||||
1984 | 0.16 | 0.92 | 1.23 | 0.66 | 0.70 | 0.72 | 0.05 | 0.00 | 0.93 | a | 0.02 | 2.03 | 0.75 | 8.17 | ||||||||||||
1985 | 0.44 | 0.56 | a | 0.40 | 0.19 | 0.26 | 0.30 | 0.01 | 0.18 | 0.39 | 0.42 | 1.14 | 0.78 | 5.07 | ||||||||||||
1986 | 2.06 | a | 1.07 | 1.25 | 0.08 | 0.82 | 0.06 | b | 0.39 | 0.06 | 0.84 | 0.72 | 0.73 | 0.84 | 8.92 | |||||||||||
1987 | 1.13 | 0.50 | 1.36 | 0.37 | 0.75 | 0.05 | 0.16 | a | 0.03 | 0.07 | 0.00 | 0.27 | 1.64 | 6.33 | ||||||||||||
1988 | 0.78 | 0.07 | 0.78 | 0.62 | 0.80 | 0.31 | 0.14 | 0.00 | 0.30 | 0.01 | 1.19 | 0.53 | 5.53 | |||||||||||||
1989 | 0.74 | 1.21 | 1.58 | 1.03 | 0.90 | 0.08 | 0.03 | 0.42 | 0.00 | 0.54 | 1.03 | 0.52 | 8.08 | |||||||||||||
1990 | 0.70 | 0.76 | 0.23 | 0.56 | 0.76 | 0.17 | 0.15 | 0.71 | 0.00 | 1.04 | 0.45 | 0.77 | 6.30 | |||||||||||||
1991 | 0.47 | a | 0.49 | 1.10 | 0.39 | 1.04 | 0.57 | 0.11 | 0.14 | 0.00 | 0.60 | 2.26 | 0.80 | 7.97 | ||||||||||||
1992 | 0.68 | 1.32 | 0.28 | 1.22 | 0.05 | 0.64 | 0.97 | 0.50 | 0.46 | 0.37 | 1.58 | 1.06 | 9.13 | |||||||||||||
1993 | 1.71 | 0.81 | 0.86 | 1.41 | 0.65 | k | 0.72 | 0.45 | ----- | z | 0.07 | 0.03 | 0.17 | 1.12 | 7.35 | b | ||||||||||
1994 | ----- | z | 0.16 | g | 0.03 | 0.66 | 1.44 | f | 0.64 | 0.54 | m | ----- | z | ----- | z | 1.25 | b | 0.65 | 0.95 | 4.18 | f | |||||
1995 | 2.06 | i | 0.33 | ----- | z | 1.58 | f | 0.41 | t | 1.25 | h | 0.60 | k | ----- | z | 0.38 | x | ----- | z | 1.04 | i | 2.03 | j | 0.33 | k | |
1996 | 0.96 | 1.49 | f | 1.70 | d | 0.33 | e | 0.98 | 0.20 | 0.26 | 0.00 | 0.14 | 1.05 | 1.97 | 2.29 | 9.88 | a | |||||||||
1997 | 1.67 | 0.37 | 0.86 | 0.73 | 0.53 | 0.26 | 0.26 | 0.17 | a | 0.38 | 0.82 | g | 0.86 | 0.47 | 6.56 | a | ||||||||||
1998 | 1.32 | 0.99 | 0.63 | 0.17 | 0.59 | 0.53 | 1.63 | 0.00 | 0.17 | 0.08 | ----- | z | 0.37 | 6.48 | a | |||||||||||
1999 | 0.69 | 0.71 | 0.04 | 0.20 | 0.17 | 0.00 | 0.00 | 0.12 | 0.00 | 0.43 | 0.26 | 0.36 | 2.98 | |||||||||||||
2000 | 1.21 | 1.38 | 0.91 | 0.86 | 0.73 | 0.58 | 0.03 | 0.11 | 0.88 | 0.99 | 1.00 | 0.48 | 9.16 | |||||||||||||
2001 | 0.42 | 0.32 | 0.49 | 1.00 | 0.18 | 0.43 | 0.16 | 0.27 | ----- | z | 0.25 | 1.50 | 0.66 | 5.68 | a | |||||||||||
2002 | 0.40 | 0.69 | 0.20 | 0.44 | 0.29 | 0.80 | 0.26 | 0.03 | 0.00 | 0.07 | 0.23 | 2.42 | 5.83 | |||||||||||||
2003 | 1.79 | 0.73 | 0.28 | 1.32 | 0.17 | 0.00 | 0.00 | 0.18 | 0.35 | 0.13 | 0.17 | 1.60 | 6.72 | |||||||||||||
2004 | 1.27 | 1.21 | 0.25 | 0.23 | 1.56 | 1.33 | 0.00 | 0.53 | 0.17 | 0.38 | 0.32 | 0.74 | 7.99 | |||||||||||||
2005 | 0.67 | 0.06 | 0.44 | 0.43 | 0.72 | 0.33 | 0.19 | 0.09 | 0.60 | 0.55 | 0.89 | 2.33 | 7.30 | |||||||||||||
2006 | 1.67 | 0.27 | 0.38 | 1.03 | 0.73 | 1.03 | 0.05 | 0.00 | 0.17 | 0.42 | 1.17 | 1.69 | 8.61 | |||||||||||||
2007 | 0.38 | 1.08 | 0.79 | 0.40 | 0.33 | 0.78 | 0.11 | 0.11 | 0.50 | 0.23 | 1.22 | 0.78 | 6.71 | |||||||||||||
2008 | 1.14 | 0.62 | c | 0.51 | 0.20 | 0.30 | 0.68 | 0.01 | 0.23 | 0.10 | 0.28 | 0.84 | 0.74 | 5.65 | ||||||||||||
2009 | 1.12 | 0.99 | 1.11 | 0.38 | 0.44 | 0.07 | 0.14 | 0.07 | 0.24 | 1.01 | 0.45 | 1.02 | 7.04 | |||||||||||||
2010 | 1.55 | 0.42 | a | 0.13 | 0.21 | 1.33 | 0.73 | 0.17 | 0.10 | 0.84 | 0.98 | 1.61 | 1.97 | a | 10.04 | |||||||||||
2011 | 0.71 | 0.22 | 0.92 | 0.53 | 1.19 | 0.19 | a | 0.02 | 0.01 | 0.02 | a | 0.58 | 0.27 | 0.19 | 4.85 | |||||||||||
2012 | 0.93 | 0.60 | 1.04 | 0.78 | a | 0.33 | 1.84 | 0.32 | 0.01 | 0.00 | 1.00 | 0.99 | a | 1.42 | 9.26 | |||||||||||
2013 | 0.30 | 0.13 | a | 0.50 | 0.38 | 0.73 | 0.92 | 0.00 | 0.23 | 0.85 | 0.16 | 0.42 | 0.19 | a | 4.81 | |||||||||||
2014 | 0.42 | 0.52 | 0.76 | c | 0.36 | a | 0.11 | 0.22 | 0.02 | 0.34 | 0.02 | 0.70 | 0.42 | 1.13 | 5.02 | |||||||||||
2015 | 0.96 | 0.64 | 0.73 | 0.03 | 1.21 | 0.00 | 0.02 | 0.00 | 0.10 | 0.54 | 0.66 | 1.90 | 6.79 | |||||||||||||
2016 | 1.46 | 0.36 | 0.84 | 0.09 | 0.66 | 0.41 | 0.22 | 0.00 | 0.26 | 1.82 | 0.46 | 0.79 | 7.37 | |||||||||||||
2017 | 0.91 | 1.82 | 1.46 | 1.13 | 0.47 | 0.40 | 0.00 | 0.04 | 0.31 | 0.53 | 1.38 | 1.07 | 9.52 | |||||||||||||
2018 | 1.09 | 0.36 | 0.27 | 1.10 | 0.36 | 0.26 | a | 0.00 | 0.00 | 0.02 | 0.38 | 0.71 | 0.70 | 5.25 | ||||||||||||
2019 | 1.54 | 0.84 | a | 0.63 | 0.82 | 0.49 | 0.18 | 0.06 | 0.05 | 0.33 | 0.53 | 0.15 | a | 0.67 | 6.29 | |||||||||||
2020 | 0.93 | 1.05 | 0.49 | a | 0.06 | 0.88 | 0.43 | 0.01 | 0.10 | 0.62 | 0.28 | 1.07 | 0.69 | b | 6.61 | |||||||||||
2021 | 0.54 | b | 0.79 | b | 0.08 | a | 0.00 | 0.11 | 0.10 | 0.00 | a | 0.00 | 0.39 | 0.90 | 1.13 | 1.30 | a | 5.34 | ||||||||
2022 | 0.36 | 0.18 | 0.46 | 1.60 | 0.71 | 1.11 | 0.12 | 0.00 | 0.03 | 0.73 | a | 1.04 | b | 1.39 | 7.73 | |||||||||||
2023 | 0.39 | a | 0.45 | 0.65 | 0.53 | 0.06 | 0.00 | 0.03 | a | 0.44 | 0.24 | 0.76 | 1.15 | 2.28 | 6.98 | |||||||||||
2024 | 1.84 | 0.56 | 0.37 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.77 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.97 | 0.71 | 0.61 | 0.49 | 0.58 | 0.51 | 0.17 | 0.21 | 0.28 | 0.56 | 0.91 | 1.06 | 6.89 | |||||||||||||
S.D. | 0.62 | 0.48 | 0.42 | 0.38 | 0.45 | 0.47 | 0.27 | 0.30 | 0.29 | 0.51 | 0.57 | 0.64 | 1.66 | |||||||||||||
SKEW | 1.03 | 0.85 | 0.90 | 0.75 | 1.27 | 1.93 | 3.11 | 2.62 | 1.07 | 1.50 | 0.90 | 0.76 | -0.23 | |||||||||||||
MAX | 3.02 | 2.30 | 1.98 | 1.60 | 2.07 | 2.64 | 1.63 | 1.82 | 1.12 | 2.41 | 2.78 | 2.83 | 10.04 | |||||||||||||
MIN | 0.10 | 0.00 | 0.03 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.13 | 2.98 | |||||||||||||
YRS | 78 | 78 | 78 | 77 | 75 | 79 | 78 | 77 | 76 | 78 | 78 | 78 | 70 |