YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.42 | h | 0.00 | l |
1951 | 1.46 | 0.51 | 0.20 | 0.59 | 0.46 | 0.72 | 0.10 | 0.51 | 0.00 | 1.33 | 0.60 | 1.13 | 7.61 | |||||||||||||
1952 | 0.78 | 0.39 | 0.92 | ----- | z | 1.02 | 1.53 | 0.27 | 0.08 | 0.48 | 0.00 | 0.40 | 0.38 | i | 5.87 | b | ||||||||||
1953 | 0.35 | 0.77 | 0.20 | 0.48 | 3.39 | a | 2.67 | 0.00 | 0.36 | 0.08 | 0.05 | ----- | z | 0.00 | w | 8.35 | b | |||||||||
1954 | 0.06 | 0.18 | 0.38 | d | 0.19 | 0.37 | 1.03 | a | 0.00 | 0.10 | 0.00 | 0.35 | 0.05 | 0.86 | a | 3.57 | ||||||||||
1955 | ----- | z | 0.30 | 0.00 | 1.58 | b | 1.10 | 0.70 | 0.00 | 0.00 | 0.13 | 0.14 | 0.43 | 1.87 | 6.25 | a | ||||||||||
1956 | 2.30 | 0.30 | 0.00 | 0.96 | 0.73 | v | 0.40 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | 0.66 | e | 4.62 | e | ||||||
1957 | 0.59 | 0.29 | 0.85 | ----- | z | ----- | z | ----- | z | ----- | z | 0.08 | 0.07 | 1.09 | 0.15 | 0.28 | i | 3.12 | e | |||||||
1958 | ----- | z | ----- | z | ----- | z | 0.35 | a | 0.45 | 3.16 | 0.81 | 0.42 | 0.17 | 0.07 | 0.40 | 0.44 | 6.27 | c | ||||||||
1959 | 0.41 | 0.64 | 0.17 | 0.05 | 2.17 | 0.25 | 0.20 | 0.30 | 1.13 | k | 0.09 | 0.00 | 0.60 | 4.88 | a | |||||||||||
1960 | 1.20 | 0.78 | 0.64 | 0.17 | 1.18 | 0.00 | 0.54 | 0.79 | 0.30 | ----- | z | 0.68 | 0.00 | e | 6.28 | a | ||||||||||
1961 | 0.19 | 1.36 | 1.19 | a | 0.00 | 0.49 | 0.74 | 0.36 | 0.31 | 0.59 | 0.61 | 0.05 | 0.41 | a | 6.30 | |||||||||||
1962 | ----- | z | 1.47 | 0.82 | c | ----- | z | 2.15 | 0.06 | 0.00 | 0.49 | 0.18 | 2.27 | 0.95 | 0.21 | 8.60 | b | |||||||||
1963 | 0.26 | 0.93 | 0.20 | 0.13 | k | 1.33 | 3.46 | 0.00 | 0.45 | 0.54 | 1.09 | 1.72 | 0.55 | 10.53 | a | |||||||||||
1964 | 0.51 | c | 0.00 | ----- | z | 1.49 | ----- | z | 2.86 | 0.68 | 0.67 | 0.21 | 0.26 | 0.29 | 2.43 | 9.40 | b | |||||||||
1965 | 1.45 | 0.00 | 0.20 | 0.43 | 1.33 | 2.32 | 0.22 | 1.54 | 0.33 | 0.00 | b | 1.24 | 0.15 | 9.21 | ||||||||||||
1966 | 0.20 | 0.57 | 1.92 | 0.24 | 0.59 | 0.58 | 0.00 | 0.50 | ----- | z | 0.40 | 1.24 | 0.60 | 6.84 | a | |||||||||||
1967 | 0.61 | 0.19 | 1.14 | 1.16 | 0.43 | 4.28 | 0.57 | 0.21 | 0.34 | 0.39 | 1.70 | 0.00 | 11.02 | |||||||||||||
1968 | 0.10 | b | 0.24 | ----- | z | 0.00 | 0.80 | 0.00 | 0.14 | 2.70 | d | 0.00 | ----- | z | 1.51 | 0.44 | c | 5.93 | b | |||||||
1969 | 1.71 | 0.27 | 0.05 | 0.67 | 0.53 | 1.15 | 0.00 | 0.00 | 0.08 | 0.54 | 0.24 | 0.99 | 6.23 | |||||||||||||
1970 | 1.56 | f | 0.30 | 0.44 | 0.96 | 1.09 | 0.72 | 0.38 | 0.00 | 1.61 | 0.24 | 1.81 | a | 1.64 | 9.19 | a | ||||||||||
1971 | 0.44 | b | 0.00 | 1.65 | b | 0.27 | 0.34 | 1.91 | 0.00 | 0.00 | 2.37 | 0.61 | 0.51 | e | 0.50 | 8.60 | ||||||||||
1972 | 1.40 | 0.77 | 0.57 | 0.00 | 1.10 | 1.54 | 0.00 | 0.00 | 0.67 | 0.78 | 1.01 | 0.37 | 8.21 | |||||||||||||
1973 | 0.64 | 0.13 | 0.27 | 0.71 | 1.26 | ----- | z | 0.01 | 0.00 | 0.41 | 0.71 | ----- | z | 1.28 | b | 5.42 | b | |||||||||
1974 | 0.49 | b | 0.10 | 0.95 | 0.76 | 0.06 | 0.00 | 0.87 | 0.00 | 0.00 | 0.84 | 0.59 | 0.79 | 5.45 | ||||||||||||
1975 | 0.60 | 0.34 | 0.87 | 0.37 | 0.30 | 0.98 | 1.07 | 0.95 | 0.00 | 1.02 | 0.13 | 0.30 | 6.93 | |||||||||||||
1976 | 0.43 | 0.61 | 0.30 | 0.80 | 0.00 | 0.96 | 1.58 | 1.88 | 1.57 | 0.00 | 0.00 | 0.00 | 8.13 | |||||||||||||
1977 | 0.70 | 0.65 | 0.32 | 0.20 | 0.88 | 0.00 | 0.26 | 0.60 | 0.52 | 0.11 | 0.83 | 1.27 | 6.34 | |||||||||||||
1978 | 1.57 | 1.15 | 0.49 | 2.74 | ----- | z | 0.61 | 0.36 | 0.28 | 0.72 | 0.00 | 0.93 | 0.21 | 9.06 | a | |||||||||||
1979 | 1.12 | a | 0.46 | 0.53 | 1.33 | 0.41 | 1.13 | 0.00 | 1.38 | 0.00 | 0.73 | 0.67 | 0.16 | 7.92 | ||||||||||||
1980 | 0.56 | 0.23 | 0.35 | 0.45 | 2.06 | 0.74 | 0.36 | 0.00 | 1.32 | 0.23 | 0.24 | 0.49 | a | 7.03 | ||||||||||||
1981 | 0.80 | a | 0.22 | 0.75 | 1.02 | 2.64 | 0.70 | 0.21 | 0.00 | 0.42 | 0.90 | 1.32 | 2.04 | 11.02 | ||||||||||||
1982 | 0.16 | 0.27 | 0.40 | a | 0.39 | 0.64 | 1.02 | a | 1.46 | a | 0.00 | 0.95 | 1.35 | 0.81 | a | 1.12 | c | 8.57 | ||||||||
1983 | 0.59 | a | 0.81 | 1.73 | a | 0.49 | 1.19 | 0.68 | 0.54 | 0.96 | 0.09 | 0.47 | 1.34 | 1.91 | i | 8.89 | a | |||||||||
1984 | 0.05 | 0.23 | c | 1.50 | c | 0.78 | 1.15 | 1.30 | 0.10 | 0.00 | 0.62 | 0.83 | 1.24 | 0.04 | 7.84 | |||||||||||
1985 | 0.00 | b | 0.40 | a | 0.87 | a | 0.51 | a | 0.30 | 0.36 | 0.84 | 0.00 | ----- | z | 0.34 | 0.60 | b | 0.50 | c | 4.72 | a | |||||
1986 | 0.14 | 1.68 | 1.38 | 1.29 | 1.04 | 0.18 | 0.00 | 0.00 | 1.03 | 0.40 | 0.43 | 0.34 | a | 7.91 | ||||||||||||
1987 | 0.39 | b | 0.98 | b | 0.56 | i | 0.40 | 3.67 | 0.66 | 0.46 | a | 0.08 | 0.00 | 0.05 | 0.35 | 0.47 | 7.51 | a | ||||||||
1988 | 0.33 | a | 0.03 | 0.89 | 0.53 | a | 0.37 | 0.52 | 0.00 | 0.06 | 0.24 | 0.00 | 1.06 | 0.42 | d | 4.45 | ||||||||||
1989 | 0.00 | c | 0.22 | b | 1.61 | b | 0.64 | 1.11 | f | 0.10 | 0.00 | 0.35 | 0.74 | 0.25 | 0.64 | 0.10 | 4.65 | a | ||||||||
1990 | 0.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.39 | 0.18 | 0.97 | i | |||
1991 | 0.00 | 0.61 | 0.47 | 1.17 | 3.24 | 1.30 | 0.00 | 0.00 | 0.37 | 0.55 | 0.72 | 0.63 | 9.06 | |||||||||||||
1992 | 0.48 | 0.40 | 0.23 | 0.31 | 0.25 | 1.83 | 0.17 | 0.15 | 0.03 | 0.63 | 0.46 | 1.22 | 6.16 | |||||||||||||
1993 | 1.26 | a | 0.87 | 1.73 | 1.39 | 1.05 | 1.93 | 0.91 | 0.35 | 0.00 | 0.58 | 0.27 | 0.18 | 10.52 | ||||||||||||
1994 | 0.21 | 0.96 | 0.00 | 1.61 | 0.81 | 0.26 | 0.00 | 0.19 | 0.20 | 0.51 | 0.85 | 0.84 | 6.44 | |||||||||||||
1995 | 1.27 | 0.92 | 1.20 | 1.03 | 1.79 | 2.11 | 0.58 | 0.18 | 0.05 | 0.23 | 1.13 | 2.32 | 12.81 | |||||||||||||
1996 | 0.93 | 0.52 | a | 0.50 | 0.83 | 1.36 | 0.54 | g | 0.00 | x | 0.26 | 0.47 | 0.72 | 0.96 | 1.71 | d | 8.26 | b | ||||||||
1997 | 3.30 | 0.09 | 0.35 | 1.46 | 0.64 | 1.88 | 0.36 | 0.06 | 0.12 | 0.28 | 0.47 | ----- | z | 9.01 | a | |||||||||||
1998 | 0.94 | 1.32 | 0.64 | 1.08 | 4.99 | 0.85 | 2.56 | 0.05 | 0.87 | 0.34 | 1.01 | 1.19 | 15.84 | |||||||||||||
1999 | 1.02 | 1.32 | 0.53 | a | 0.37 | 0.64 | b | 0.63 | 0.00 | 0.42 | 0.00 | 0.03 | 0.27 | 0.27 | 5.50 | |||||||||||
2000 | 2.45 | 1.15 | c | 0.70 | 1.17 | c | 0.76 | 0.38 | 0.41 | 0.53 | 0.70 | 2.33 | a | 0.30 | 0.67 | 11.55 | ||||||||||
2001 | 1.12 | 0.32 | 1.15 | 1.40 | 0.45 | 0.50 | 0.60 | 0.00 | 0.17 | 0.24 | 0.83 | 0.86 | 7.64 | |||||||||||||
2002 | 0.70 | 0.30 | 0.70 | 1.24 | 0.43 | 0.97 | 0.49 | 0.02 | 0.17 | 0.11 | 0.44 | 0.99 | b | 6.56 | ||||||||||||
2003 | 1.01 | 0.46 | 0.92 | 1.54 | 2.02 | 0.05 | 0.00 | 0.22 | 0.00 | 0.10 | 0.67 | 1.54 | 8.53 | |||||||||||||
2004 | 0.70 | 0.72 | 0.18 | 0.29 | 1.37 | 0.66 | 0.05 | 0.50 | 0.20 | 2.28 | 0.71 | 0.54 | a | 8.20 | ||||||||||||
2005 | 0.09 | 0.21 | 0.47 | 1.37 | 2.93 | 1.05 | 0.09 | 0.00 | 0.30 | 1.30 | d | 1.31 | 2.46 | 11.58 | ||||||||||||
2006 | 0.74 | 0.29 | 1.19 | 2.39 | 0.98 | 0.44 | a | 0.10 | 0.06 | 0.18 | 0.12 | 0.70 | 0.48 | 7.67 | ||||||||||||
2007 | 0.00 | 0.84 | 0.35 | 1.45 | 0.13 | 1.02 | 0.00 | 0.22 | 2.42 | 1.23 | 0.54 | 0.74 | 8.94 | |||||||||||||
2008 | 0.26 | 0.17 | 0.45 | 0.18 | 0.65 | 0.77 | 0.04 | 0.01 | 0.62 | 0.21 | 0.79 | b | 0.75 | 4.90 | ||||||||||||
2009 | 0.71 | 0.04 | 0.38 | 0.74 | 1.25 | 3.43 | 0.37 | 0.46 | b | 0.00 | c | 1.27 | 0.70 | 0.64 | 9.99 | |||||||||||
2010 | 1.19 | 0.29 | 1.38 | 0.58 | 1.88 | a | 1.19 | 0.15 | 0.65 | 0.15 | 2.23 | 0.42 | 1.47 | 11.58 | ||||||||||||
2011 | 0.38 | 0.27 | 1.80 | 1.53 | 3.00 | 1.42 | b | 0.03 | 0.00 | 0.19 | 1.09 | a | ----- | z | 0.17 | 9.88 | a | |||||||||
2012 | 1.25 | 0.28 | 1.00 | 0.99 | a | 0.88 | 0.69 | 0.02 | 0.02 | 0.00 | 0.39 | 0.57 | 0.86 | 6.95 | ||||||||||||
2013 | 0.29 | 0.24 | 0.12 | 0.29 | 0.55 | 0.55 | 0.09 | 0.19 | 1.72 | 0.53 | 0.46 | a | 0.02 | 5.05 | ||||||||||||
2014 | 0.25 | 0.71 | 0.60 | 0.68 | 0.21 | 0.63 | 0.46 | 0.57 | b | 0.89 | 0.31 | 0.68 | 1.18 | a | 7.17 | |||||||||||
2015 | 0.08 | 0.55 | 0.39 | 0.78 | d | 2.58 | a | 0.64 | 1.11 | 0.00 | 0.49 | d | 2.08 | 0.86 | c | 0.45 | 10.01 | |||||||||
2016 | 0.48 | 0.02 | 0.57 | 0.54 | 1.53 | 0.24 | 0.18 | 0.00 | 0.46 | 0.85 | 0.04 | 0.85 | 5.76 | |||||||||||||
2017 | 0.88 | 0.22 | 1.03 | 1.73 | 0.92 | 0.74 | 0.01 | 0.28 | 0.38 | 0.47 | 1.82 | 0.42 | e | 8.90 | ||||||||||||
2018 | 0.95 | 0.50 | 0.80 | 0.58 | 1.74 | 1.46 | 0.03 | 0.05 | 0.00 | 1.14 | 0.78 | ----- | z | 8.03 | a | |||||||||||
2019 | 0.48 | 2.45 | 0.59 | 1.59 | 2.72 | 0.53 | e | 0.02 | 0.39 | 1.39 | 0.22 | 0.35 | 0.93 | 11.66 | ||||||||||||
2020 | 1.64 | 0.47 | 0.92 | 0.69 | 1.54 | 1.52 | 0.46 | 0.22 | 0.01 | 0.04 | 0.54 | ----- | z | 8.05 | a | |||||||||||
2021 | 0.73 | d | 1.24 | c | 0.40 | 0.89 | 1.07 | 1.04 | 0.30 | 0.33 | 0.89 | 0.88 | 0.52 | ----- | z | 8.29 | a | |||||||||
2022 | ----- | z | 0.12 | b | 0.37 | 0.76 | 0.39 | 1.31 | 0.00 | 0.27 | 0.43 | a | 0.19 | 1.00 | 2.33 | a | 7.17 | a | ||||||||
2023 | 0.93 | 0.04 | 1.59 | 0.38 | 1.25 | 1.63 | 0.00 | 1.00 | 0.33 | 1.29 | 0.32 | d | 1.23 | 9.99 | ||||||||||||
2024 | 1.47 | 1.06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.53 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.74 | 0.54 | 0.71 | 0.82 | 1.23 | 1.07 | 0.31 | 0.33 | 0.46 | 0.63 | 0.70 | 0.79 | 8.25 | |||||||||||||
S.D. | 0.62 | 0.46 | 0.50 | 0.56 | 0.99 | 0.90 | 0.45 | 0.47 | 0.54 | 0.60 | 0.44 | 0.63 | 2.45 | |||||||||||||
SKEW | 1.52 | 1.49 | 0.72 | 0.90 | 1.47 | 1.48 | 2.50 | 2.68 | 1.85 | 1.34 | 0.72 | 1.06 | 0.65 | |||||||||||||
MAX | 3.30 | 2.45 | 1.92 | 2.74 | 4.99 | 4.28 | 2.56 | 2.70 | 2.42 | 2.33 | 1.82 | 2.46 | 15.84 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.57 | |||||||||||||
YRS | 69 | 72 | 68 | 68 | 67 | 69 | 70 | 71 | 68 | 69 | 69 | 65 | 45 |