YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.26 | 0.48 | 0.63 | 0.20 | 3.57 | h | ||||
1940 | 0.10 | 1.00 | 0.26 | 0.23 | 0.61 | 0.59 | 2.37 | 1.02 | 0.53 | 0.52 | 0.36 | ----- | z | 7.59 | a | |||||||||||
1941 | 0.93 | a | 0.72 | 0.51 | 0.65 | 2.67 | 1.54 | 1.06 | 1.79 | 3.92 | 2.11 | 0.65 | 0.68 | 17.23 | ||||||||||||
1942 | 0.00 | 0.27 | 0.82 | 1.32 | 0.00 | 0.01 | 2.68 | 2.49 | 3.16 | 1.58 | 0.00 | 0.68 | 13.01 | |||||||||||||
1943 | 0.50 | 0.00 | 0.21 | 0.35 | 1.58 | 1.80 | 1.13 | 2.17 | 1.01 | 0.29 | 0.47 | 1.01 | 10.52 | |||||||||||||
1944 | 1.05 | 0.11 | 0.00 | 0.70 | 0.53 | 0.18 | 2.47 | 2.22 | 1.17 | 0.85 | 1.25 | 0.67 | 11.20 | |||||||||||||
1945 | 0.24 | a | 0.10 | 1.06 | 0.05 | 0.00 | 0.13 | 2.25 | 1.79 | 0.14 | 0.30 | 0.00 | 0.35 | 6.41 | ||||||||||||
1946 | 0.40 | 0.00 | 0.30 | 0.48 | ----- | z | 0.26 | 1.15 | 1.13 | 1.24 | 1.22 | 0.41 | a | 0.06 | 6.65 | a | ||||||||||
1947 | 0.40 | 0.00 | 0.00 | 0.09 | 0.05 | 0.00 | 0.84 | f | 3.97 | a | 0.33 | a | 0.00 | 0.43 | c | 0.94 | b | 6.21 | a | |||||||
1948 | 0.17 | 1.14 | 0.10 | 0.10 | 1.16 | 0.71 | l | 0.38 | b | 2.53 | 0.57 | 0.96 | 0.00 | 0.24 | 7.35 | a | ||||||||||
1949 | 0.88 | a | 0.66 | 0.36 | 0.57 | 0.43 | 0.79 | 2.61 | 0.85 | 4.07 | 0.52 | 0.00 | 0.41 | a | 12.15 | |||||||||||
1950 | 0.01 | 0.00 | 0.03 | 0.15 | 0.06 | 0.31 | 2.18 | 2.20 | a | 1.37 | a | 0.46 | 0.00 | 0.00 | 6.77 | |||||||||||
1951 | 0.46 | 0.14 | 0.59 | 0.31 | 0.05 | 0.00 | 0.67 | 3.46 | 0.03 | 0.97 | 0.35 | 0.27 | 7.30 | |||||||||||||
1952 | 0.15 | 0.31 | 0.47 | 0.50 | 0.14 | 0.75 | 1.22 | 1.70 | 1.81 | 0.00 | 0.98 | 0.66 | 8.69 | |||||||||||||
1953 | 0.00 | 0.98 | 1.47 | 1.19 | 0.25 | 0.48 | 2.33 | c | 1.78 | 0.82 | 0.22 | 0.53 | 0.07 | 10.12 | ||||||||||||
1954 | 0.28 | 0.07 | 0.40 | 0.03 | 0.50 | 0.57 | 0.76 | 4.19 | 1.35 | 2.43 | 0.00 | 0.03 | 10.61 | |||||||||||||
1955 | 0.57 | 0.02 | 0.00 | 0.00 | 0.18 | 0.17 | 3.02 | 1.04 | 0.36 | 0.28 | 0.00 | 0.31 | 5.95 | |||||||||||||
1956 | 0.14 | 0.08 | 0.00 | 0.00 | 0.02 | 0.05 | 0.51 | 0.81 | 0.10 | 1.11 | 0.02 | 0.00 | 2.84 | |||||||||||||
1957 | 0.30 | 0.36 | 0.78 | 0.22 | 0.15 | 0.03 | 1.94 | 2.18 | 0.35 | 1.58 | 0.73 | 0.11 | 8.73 | |||||||||||||
1958 | 0.21 | 0.02 | 2.07 | 0.67 | 0.11 | 0.34 | 1.13 | 1.95 | 2.01 | 1.89 | 0.32 | 0.13 | 10.85 | |||||||||||||
1959 | 0.08 | 0.00 | 0.06 | 0.78 | 0.53 | 0.35 | 2.33 | 2.08 | 0.05 | 1.08 | 0.05 | 1.46 | 8.85 | |||||||||||||
1960 | 0.65 | 0.00 | 0.00 | 0.00 | 0.48 | 1.68 | 0.76 | 0.65 | 0.47 | 1.56 | 0.11 | 0.84 | a | 7.20 | ||||||||||||
1961 | 0.12 | 0.01 | 0.55 | 0.18 | 0.04 | 0.24 | 1.65 | 2.37 | 2.46 | 0.08 | 0.46 | 0.90 | 9.06 | |||||||||||||
1962 | 0.35 | 0.12 | 0.52 | 0.59 | 0.00 | 0.82 | 4.16 | 0.08 | 1.69 | 1.44 | 0.57 | 0.63 | 10.97 | |||||||||||||
1963 | 0.06 | 0.08 | 0.05 | 0.32 | 0.04 | 0.17 | 1.85 | 3.64 | 0.20 | 0.91 | 0.53 | 0.05 | 7.90 | |||||||||||||
1964 | 0.02 | 0.13 | 0.28 | 0.33 | 0.37 | 0.03 | 1.81 | 0.83 | 1.85 | 0.00 | 0.12 | 0.15 | 5.92 | |||||||||||||
1965 | 0.07 | 0.03 | 0.22 | 0.50 | 0.29 | 0.62 | 1.28 | 1.58 | 3.25 | 0.69 | 0.00 | 1.69 | 10.22 | |||||||||||||
1966 | 0.37 | 0.27 | 0.00 | 0.00 | 0.50 | 2.98 | 2.13 | 2.05 | 0.77 | 0.40 | 0.01 | 0.15 | 9.63 | |||||||||||||
1967 | 0.00 | 0.41 | 0.05 | 0.00 | 0.23 | 1.81 | 1.47 | 3.49 | 1.24 | 0.05 | 0.62 | 0.68 | 10.05 | |||||||||||||
1968 | 0.41 | 0.95 | 1.13 | 0.30 | 0.48 | 0.01 | 2.30 | 1.26 | 0.17 | 0.89 | 0.93 | 0.43 | 9.26 | |||||||||||||
1969 | 0.18 | 0.45 | 0.08 | 0.73 | 0.45 | 0.00 | 2.39 | 2.67 | 1.16 | 1.64 | 0.00 | 1.20 | 10.95 | |||||||||||||
1970 | 0.00 | 0.18 | 0.51 | 0.06 | 0.00 | 0.29 | 4.32 | 0.67 | 0.02 | 0.82 | 0.00 | 0.31 | 7.18 | |||||||||||||
1971 | 0.00 | 0.08 | 0.03 | 0.32 | 0.00 | 0.16 | 2.54 | 3.03 | 1.59 | 1.38 | 1.04 | 0.57 | 10.74 | |||||||||||||
1972 | 0.07 | 0.09 | 0.03 | 0.00 | 0.13 | 1.15 | 1.19 | 5.85 | 1.06 | 4.46 | 0.94 | 0.34 | 15.31 | |||||||||||||
1973 | 0.78 | 0.53 | 1.02 | 0.04 | 0.94 | 0.49 | 1.65 | 2.40 | 0.14 | 0.17 | 0.07 | 0.00 | 8.23 | |||||||||||||
1974 | 0.29 | 0.24 | 0.23 | 0.05 | 0.00 | 0.08 | 2.01 | 3.48 | 2.20 | 3.90 | 0.10 | 0.77 | 13.35 | |||||||||||||
1975 | 0.45 | 0.41 | 0.83 | 0.04 | 0.12 | 0.21 | 3.58 | 0.87 | 2.51 | 0.00 | 0.94 | 0.25 | 10.21 | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | 0.00 | l |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.99 | m | 1.87 | 0.13 | 0.40 | 0.71 | 3.11 | h | ||||
1983 | 1.25 | 0.62 | a | 1.57 | 0.42 | 0.62 | b | 0.88 | b | 0.73 | 0.86 | f | 3.25 | 2.14 | b | 0.83 | f | 0.51 | b | 11.99 | b | |||||
1984 | 0.00 | 0.00 | 0.05 | a | 0.34 | 0.78 | b | 0.90 | b | 2.15 | 2.05 | d | 1.05 | c | 2.47 | c | 0.54 | c | 1.47 | 11.80 | ||||||
1985 | 0.75 | o | 0.24 | 0.70 | b | 1.55 | 0.09 | a | 0.89 | c | 1.57 | e | 2.07 | 2.70 | c | 4.12 | 0.72 | 0.10 | i | 14.65 | b | |||||
1986 | 0.07 | b | 0.68 | a | 0.36 | c | 0.09 | 1.35 | h | 1.39 | a | 2.70 | 1.64 | d | 1.43 | 2.23 | 2.53 | 0.33 | 13.45 | a | ||||||
1987 | 0.92 | 1.20 | d | 0.17 | 0.08 | a | 0.73 | c | 1.02 | b | 2.07 | b | 3.60 | b | 0.93 | a | 0.30 | ----- | z | 1.26 | a | 12.28 | a | |||
1988 | 0.10 | a | 0.15 | c | 0.00 | 0.79 | c | 0.28 | a | 1.65 | b | 2.51 | b | 8.17 | a | 2.65 | 0.12 | 0.10 | 0.00 | b | 16.52 | |||||
1989 | 0.53 | 0.11 | 0.09 | a | 0.00 | 0.47 | 0.00 | a | 5.96 | 1.90 | 1.24 | a | 1.50 | 0.00 | 0.25 | c | 12.05 | |||||||||
1990 | 0.45 | b | 0.33 | e | 0.78 | 0.85 | b | 0.93 | 0.29 | a | 1.97 | a | 2.20 | e | 1.95 | 0.24 | 1.18 | 0.78 | 11.95 | |||||||
1991 | 0.19 | a | 0.05 | a | 0.00 | g | 0.00 | a | 1.02 | a | 0.25 | 4.12 | e | 2.74 | 2.98 | 0.35 | a | 1.31 | 1.92 | c | 14.93 | a | ||||
1992 | 0.95 | 0.05 | b | 0.72 | 0.48 | a | 1.62 | 0.99 | 2.12 | a | 2.89 | a | 1.26 | 0.78 | 0.14 | 0.89 | 12.89 | |||||||||
1993 | 0.28 | a | 0.60 | b | 0.20 | a | 0.18 | 0.00 | 2.10 | a | 1.45 | 4.10 | c | 0.89 | a | 1.84 | 0.52 | 0.00 | 12.16 | |||||||
1994 | 0.00 | 0.00 | c | 1.21 | 0.22 | 1.34 | b | 0.12 | 1.95 | 0.47 | 0.75 | 1.86 | 1.71 | 1.55 | 11.18 | |||||||||||
1995 | 0.68 | 0.52 | 0.40 | 0.23 | 0.00 | 0.59 | 1.28 | 2.12 | 1.16 | 0.00 | 0.38 | 0.22 | 7.58 | |||||||||||||
1996 | 0.45 | 0.87 | 0.00 | 0.00 | 0.00 | 4.05 | 4.24 | a | 2.71 | d | 1.93 | 2.21 | 0.49 | e | 0.00 | 16.95 | ||||||||||
1997 | 0.36 | 1.20 | 0.00 | d | 1.61 | b | 0.63 | 0.99 | 3.15 | 1.17 | c | 4.74 | a | 0.53 | b | 0.23 | 0.86 | c | 15.47 | |||||||
1998 | 0.13 | 1.16 | 1.06 | 0.15 | 0.00 | 0.00 | 9.07 | 0.41 | d | 0.45 | 2.34 | 1.11 | 0.43 | b | 16.31 | |||||||||||
1999 | 0.78 | 0.00 | 0.78 | 0.55 | ----- | z | 0.80 | 3.62 | 2.71 | c | 0.47 | 0.28 | 0.00 | 0.10 | 10.09 | a | ||||||||||
2000 | 0.00 | b | 0.23 | 0.96 | 0.12 | 0.00 | 1.07 | d | 2.60 | a | 2.50 | c | 0.00 | 1.95 | 0.48 | d | 0.68 | 10.59 | ||||||||
2001 | 0.87 | 0.78 | 1.05 | a | 0.00 | 0.00 | d | 0.68 | a | 1.50 | 2.72 | 0.44 | 0.39 | 0.53 | c | 0.25 | d | 9.21 | ||||||||
2002 | 0.37 | 0.50 | 0.00 | 0.00 | 0.17 | 0.42 | 3.27 | a | 2.69 | 2.15 | 1.11 | 0.72 | 1.18 | 12.58 | ||||||||||||
2003 | 0.00 | c | 0.64 | 0.42 | 0.15 | 0.00 | a | 0.64 | 0.08 | 0.54 | 0.86 | 1.89 | 0.41 | c | 0.09 | i | 5.63 | a | ||||||||
2004 | 0.07 | b | 0.73 | 1.01 | 1.67 | 0.00 | c | 0.28 | b | 0.42 | 1.87 | 1.39 | c | 1.61 | c | 0.50 | f | 0.52 | 9.57 | a | ||||||
2005 | 1.72 | 1.46 | 1.29 | e | 0.82 | 0.40 | 0.11 | 0.72 | 5.55 | 1.07 | 1.59 | 0.00 | 0.05 | 14.78 | ||||||||||||
2006 | 0.00 | 0.00 | 0.04 | 0.00 | 0.10 | 2.06 | 2.44 | 2.69 | f | 2.23 | 2.51 | b | 0.25 | 0.62 | 10.25 | a | ||||||||||
2007 | 0.81 | 0.31 | 0.64 | 0.52 | 2.43 | 0.89 | 1.91 | 1.22 | 1.70 | 0.12 | 0.05 | 1.28 | 11.88 | |||||||||||||
2008 | 0.03 | 0.08 | 0.00 | 0.00 | 0.34 | 0.18 | 3.67 | 2.65 | 1.74 | 1.51 | 0.20 | 0.39 | 10.79 | |||||||||||||
2009 | 0.00 | 0.03 | 0.40 | 0.25 | 0.51 | 1.01 | 1.78 | 0.61 | k | 1.64 | b | 0.95 | 0.64 | 0.66 | 7.87 | a | ||||||||||
2010 | 0.98 | 0.76 | 0.95 | 1.12 | 0.04 | 1.31 | 3.96 | 1.37 | 0.21 | 0.57 | 0.00 | 0.10 | 11.37 | |||||||||||||
2011 | ----- | z | 0.32 | 0.00 | ----- | z | 0.00 | ----- | z | 2.76 | w | 1.24 | y | 0.89 | x | ----- | z | ----- | z | ----- | z | 0.32 | i | |||
2012 | 0.00 | ----- | z | ----- | z | ----- | z | 0.85 | 0.00 | 1.79 | 0.95 | 0.31 | ----- | z | ----- | z | 0.84 | 4.74 | e | |||||||
2013 | 0.00 | 0.22 | ----- | z | 0.06 | 0.02 | 0.39 | 3.24 | 0.92 | 5.08 | 0.48 | 0.18 | 0.66 | 11.25 | a | |||||||||||
2014 | 0.00 | 0.00 | 0.18 | 0.30 | 0.66 | 0.00 | 1.72 | 2.01 | 2.17 | 0.74 | 0.64 | 0.61 | 9.03 | |||||||||||||
2015 | 0.85 | 0.20 | 0.18 | b | 0.48 | k | 1.06 | 0.68 | 3.34 | 1.11 | 0.38 | 2.74 | 0.71 | 1.05 | 12.30 | a | ||||||||||
2016 | 0.15 | 0.00 | 0.00 | 0.85 | 0.89 | 0.38 | 0.63 | 1.76 | 0.95 | 0.55 | 0.97 | 1.26 | 8.39 | |||||||||||||
2017 | 1.11 | 0.45 | 0.11 | 0.62 | 0.23 | 0.48 | 3.37 | 1.13 | 2.38 | 1.12 | 0.00 | 0.00 | 11.00 | |||||||||||||
2018 | 0.17 | 1.46 | 0.21 | 0.00 | 0.12 | 0.32 | e | 4.45 | 0.31 | 1.70 | 1.96 | 0.00 | 0.84 | 11.54 | ||||||||||||
2019 | 0.72 | 0.70 | 0.54 | f | 0.37 | n | 0.16 | 0.51 | 0.98 | 0.88 | b | 1.31 | e | 0.84 | 2.43 | 0.37 | 8.90 | b | ||||||||
2020 | 0.41 | 1.09 | 1.14 | 0.12 | 0.00 | 0.08 | 1.95 | 0.45 | 1.12 | b | 0.34 | 0.00 | 0.66 | 7.36 | ||||||||||||
2021 | 0.03 | 0.75 | 0.12 | 0.09 | 0.08 | 1.60 | 1.25 | 2.20 | 2.44 | 0.28 | 0.00 | 0.27 | 9.11 | |||||||||||||
2022 | 0.13 | 0.08 | 0.41 | 0.00 | b | 0.00 | 1.08 | 1.43 | 1.52 | c | 1.74 | 1.57 | 0.00 | 0.48 | 8.44 | |||||||||||
2023 | 0.33 | 0.32 | 0.28 | 0.00 | 0.80 | 0.67 | a | 1.28 | 1.67 | 0.18 | 0.07 | 0.85 | 1.61 | a | 8.06 | |||||||||||
2024 | 0.02 | 0.83 | 0.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.45 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.35 | 0.39 | 0.45 | 0.36 | 0.41 | 0.68 | 2.21 | 2.10 | 1.44 | 1.11 | 0.46 | 0.57 | 10.46 | |||||||||||||
S.D. | 0.37 | 0.40 | 0.46 | 0.41 | 0.54 | 0.73 | 1.39 | 1.35 | 1.11 | 0.98 | 0.52 | 0.47 | 2.94 | |||||||||||||
SKEW | 1.24 | 0.98 | 1.13 | 1.49 | 2.12 | 2.03 | 1.92 | 1.69 | 1.04 | 1.22 | 1.80 | 0.82 | 0.31 | |||||||||||||
MAX | 1.72 | 1.46 | 2.07 | 1.67 | 2.67 | 4.05 | 9.07 | 8.17 | 5.08 | 4.46 | 2.53 | 1.92 | 17.23 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 2.84 | |||||||||||||
YRS | 76 | 77 | 74 | 73 | 74 | 75 | 75 | 73 | 78 | 77 | 74 | 75 | 58 |