YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.80 | a | 0.62 | k | ----- | z | 1.59 | 0.14 | 2.53 | i | ||
1949 | 0.85 | b | 0.05 | 1.31 | 1.68 | 2.36 | 4.48 | 1.44 | 1.24 | 0.17 | 0.46 | 0.77 | 0.13 | 14.94 | ||||||||||||
1950 | 0.35 | 0.23 | 0.07 | b | 0.47 | 1.53 | 1.00 | 2.72 | e | 4.60 | 1.77 | o | 0.28 | 0.30 | 0.18 | 11.73 | a | |||||||||
1951 | 0.52 | 0.10 | 0.94 | 1.29 | 2.70 | 1.35 | 1.07 | 1.39 | 0.13 | ----- | z | ----- | z | ----- | z | 9.49 | c | |||||||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.41 | 0.00 | 0.41 | i | |||
1981 | 0.00 | 0.30 | 3.77 | 0.20 | 1.75 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 6.02 | g | ||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.34 | a | 0.03 | a | 0.34 | a | 0.71 | i |
1990 | 1.00 | 1.79 | b | 0.86 | a | 0.58 | 3.37 | a | 0.41 | 7.12 | 1.42 | 1.68 | 0.78 | 0.76 | 0.16 | 19.93 | ||||||||||
1991 | 0.50 | 0.19 | 2.06 | 1.40 | 0.09 | 2.13 | 6.12 | 2.87 | 2.36 | 0.61 | 2.11 | 1.40 | 21.84 | |||||||||||||
1992 | 0.53 | 0.97 | 0.42 | 1.11 | 0.84 | a | 4.53 | 4.02 | 2.06 | 0.39 | 0.51 | 2.30 | 0.25 | 17.93 | ||||||||||||
1993 | 0.16 | 0.96 | 1.84 | a | 0.59 | 3.19 | 1.28 | 2.86 | 4.45 | 0.49 | 0.65 | 0.83 | 0.15 | 17.45 | ||||||||||||
1994 | 0.17 | 0.00 | 0.55 | 1.37 | 4.36 | 0.58 | 2.01 | 5.46 | 1.22 | 0.72 | 1.18 | 0.17 | 17.79 | |||||||||||||
1995 | 1.01 | 0.11 | 0.79 | 1.86 | 4.14 | 3.56 | 1.67 | 1.52 | 1.06 | 0.00 | 0.13 | 0.25 | 16.10 | |||||||||||||
1996 | 0.12 | 0.08 | 0.43 | 2.00 | 3.13 | 1.74 | 4.07 | 1.55 | 1.81 | 0.64 | 0.29 | 0.16 | 16.02 | |||||||||||||
1997 | 0.33 | 0.52 | 0.11 | 1.54 | 0.43 | 1.81 | 1.76 | 4.56 | 1.04 | 4.37 | 0.43 | 1.84 | 18.74 | |||||||||||||
1998 | 0.00 | 0.79 | 1.03 | 2.06 | 0.33 | 1.21 | 3.61 | 2.56 | 0.82 | 5.10 | 1.29 | 0.26 | 19.06 | |||||||||||||
1999 | 0.92 | 0.24 | 1.29 | 5.19 | 3.92 | 1.01 | 0.69 | 2.93 | 1.54 | 0.98 | 0.11 | 0.44 | 19.26 | |||||||||||||
2000 | 0.46 | 0.94 | 2.32 | 1.97 | 1.14 | 1.75 | 2.11 | 1.15 | 0.41 | 2.32 | 0.00 | 0.19 | e | 14.76 | ||||||||||||
2001 | 1.15 | 0.46 | 1.04 | 0.72 | 2.92 | 2.34 | 3.31 | 0.63 | 0.73 | 0.17 | 0.80 | 0.71 | 14.98 | |||||||||||||
2002 | 0.82 | 0.35 | 0.07 | 0.27 | ----- | z | 1.34 | 0.91 | 0.69 | 1.99 | 0.76 | 0.28 | 0.67 | 8.15 | a | |||||||||||
2003 | 0.91 | 0.30 | 2.85 | 1.58 | 1.58 | 3.09 | 1.03 | 3.18 | 1.60 | 0.01 | 0.29 | 0.71 | 17.13 | |||||||||||||
2004 | 0.36 | 1.00 | 0.65 | 3.21 | 0.56 | 2.06 | 3.59 | 1.42 | 1.09 | 0.41 | 2.77 | 0.25 | 17.37 | |||||||||||||
2005 | 0.99 | 0.49 | 3.88 | 3.60 | 0.83 | 1.67 | 0.53 | 1.14 | 2.05 | 1.59 | 0.46 | 0.10 | 17.33 | |||||||||||||
2006 | 0.62 | 0.10 | 1.27 | q | 0.47 | 0.39 | 0.95 | 3.78 | 2.90 | ----- | z | 1.95 | 0.21 | 4.92 | 16.29 | b | ||||||||||
2007 | 0.41 | 0.30 | 0.18 | f | 1.93 | 1.41 | 4.68 | 1.96 | 1.75 | 1.85 | 0.77 | 0.03 | 0.70 | 15.79 | a | |||||||||||
2008 | 0.69 | 0.40 | 0.27 | 1.07 | 0.85 | h | 0.64 | q | 0.67 | r | 6.35 | g | 1.58 | k | 1.93 | 0.37 | 0.60 | 5.33 | e | |||||||
2009 | 0.07 | 0.65 | 1.48 | 1.49 | 1.39 | 2.51 | 4.43 | 2.18 | 1.83 | 3.15 | 0.55 | 0.31 | 20.04 | |||||||||||||
2010 | 0.51 | 0.52 | 4.16 | 1.66 | 2.55 | 0.70 | 4.70 | 3.47 | 1.03 | 0.10 | 0.69 | 0.15 | 20.24 | |||||||||||||
2011 | 0.39 | 0.20 | b | 0.26 | 0.77 | 1.27 | 2.29 | 1.84 | 2.48 | 0.26 | 0.27 | 1.32 | 2.32 | 13.67 | ||||||||||||
2012 | 0.07 | 0.41 | 0.31 | 3.22 | 0.97 | 0.29 | 1.16 | 1.48 | 1.44 | 0.40 | 0.00 | 0.35 | 10.10 | |||||||||||||
2013 | 0.07 | 0.68 | 1.81 | 0.47 | 0.57 | 0.39 | 2.42 | 4.01 | 2.31 | 0.50 | 0.55 | 0.02 | 13.80 | |||||||||||||
2014 | 0.21 | 0.63 | 0.52 | 1.17 | 0.39 | 1.63 | 4.97 | 3.26 | 1.68 | 3.19 | 0.52 | 1.43 | 19.60 | |||||||||||||
2015 | 0.70 | 1.21 | 0.43 | 1.64 | 4.08 | 1.22 | 1.90 | 1.17 | 0.90 | 2.18 | 1.92 | 1.00 | 18.35 | |||||||||||||
2016 | 0.34 | 0.63 | 0.70 | 2.49 | 0.72 | 2.46 | 1.18 | 3.60 | 0.52 | 0.03 | 0.69 | 0.22 | 13.58 | |||||||||||||
2017 | 1.63 | 0.19 | 1.05 | 5.90 | 3.39 | 0.78 | 7.04 | 3.00 | 2.34 | 0.24 | 0.38 | 0.11 | 26.05 | |||||||||||||
2018 | 0.79 | 0.14 | 0.43 | 0.48 | 1.02 | 0.11 | 3.04 | 2.74 | 1.38 | 2.45 | 0.67 | 0.29 | 13.54 | |||||||||||||
2019 | 1.92 | 0.51 | 1.83 | 0.39 | 1.87 | 3.51 | 2.13 | 0.52 | 0.68 | 0.83 | 0.28 | 0.56 | 15.03 | |||||||||||||
2020 | 0.09 | 1.12 | 0.61 | 0.34 | 0.76 | 2.02 | 3.60 | 2.63 | 0.68 | 0.21 | 0.06 | 1.42 | 13.54 | |||||||||||||
2021 | 0.51 | 0.44 | 2.12 | 0.28 | 2.61 | 1.08 | 3.51 | 4.02 | 0.39 | 0.67 | 0.00 | 0.27 | 15.90 | |||||||||||||
2022 | 0.68 | 0.52 | 1.87 | 0.18 | 1.43 | 2.03 | 3.51 | 2.25 | 0.33 | 0.20 | 0.19 | 0.19 | 13.38 | |||||||||||||
2023 | 1.39 | 0.59 | 0.22 | 1.52 | 2.67 | 4.45 | 2.84 | 2.56 | 1.76 | 0.58 | 0.11 | 0.59 | 19.28 | |||||||||||||
2024 | 1.02 | 0.70 | 1.43 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.15 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.60 | 0.51 | 1.24 | 1.53 | 1.85 | 1.90 | 2.91 | 2.42 | 1.18 | 1.06 | 0.66 | 0.61 | 16.99 | |||||||||||||
S.D. | 0.45 | 0.38 | 1.08 | 1.29 | 1.26 | 1.26 | 1.68 | 1.26 | 0.68 | 1.23 | 0.68 | 0.88 | 3.16 | |||||||||||||
SKEW | 0.89 | 1.17 | 1.25 | 1.68 | 0.48 | 0.84 | 0.83 | 0.46 | 0.14 | 1.73 | 1.50 | 3.35 | 0.43 | |||||||||||||
MAX | 1.92 | 1.79 | 4.16 | 5.90 | 4.36 | 4.68 | 7.12 | 5.46 | 2.36 | 5.10 | 2.77 | 4.92 | 26.05 | |||||||||||||
MIN | 0.00 | 0.00 | 0.07 | 0.18 | 0.09 | 0.11 | 0.53 | 0.52 | 0.13 | 0.00 | 0.00 | 0.00 | 10.10 | |||||||||||||
YRS | 39 | 39 | 37 | 38 | 36 | 36 | 36 | 37 | 34 | 38 | 39 | 39 | 31 |