YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.01 | 0.00 | 0.12 | 1.52 | 1.72 | 1.07 | 4.44 | f | ||||||
1938 | 1.37 | 0.80 | 1.28 | 0.52 | 0.63 | 1.42 | 1.19 | 0.27 | 0.43 | 1.67 | 0.81 | x | 0.68 | 10.26 | a | |||||||||||
1939 | 0.43 | 1.24 | 0.85 | 0.19 | 0.15 | 0.20 | 0.60 | 0.05 | 0.04 | 1.08 | 0.00 | 1.57 | 6.40 | |||||||||||||
1940 | 1.91 | 1.28 | k | 1.67 | 1.16 | 0.00 | 0.56 | 0.08 | 0.00 | 3.18 | s | 2.35 | 0.66 | 0.24 | 8.63 | b | ||||||||||
1941 | 1.82 | 1.33 | 0.22 | 0.22 | 1.92 | 1.53 | 0.54 | 1.13 | 0.77 | 1.02 | 0.89 | 0.85 | 12.24 | |||||||||||||
1942 | 1.01 | 1.28 | s | 0.28 | 0.99 | 1.58 | 0.89 | 0.05 | 0.28 | 0.00 | 0.33 | 2.85 | 1.57 | r | 8.26 | b | ||||||||||
1943 | 0.89 | a | 0.40 | 1.17 | 1.19 | 1.02 | 0.72 | 0.11 | 0.06 | 0.00 | 1.43 | 0.60 | 0.25 | 7.84 | ||||||||||||
1944 | 0.96 | a | 0.78 | 0.30 | 0.67 | 0.76 | 2.29 | 0.68 | 0.00 | 0.14 | 0.08 | 1.79 | 0.63 | 9.08 | ||||||||||||
1945 | 0.76 | 0.76 | 1.22 | 0.09 | 2.39 | 0.11 | 0.37 | 0.00 | 0.77 | 0.90 | 1.93 | 1.33 | 10.63 | |||||||||||||
1946 | 0.91 | 0.75 | a | 0.47 | 0.09 | 1.74 | 0.36 | 0.07 | 0.19 | 0.58 | 1.35 | 1.57 | 0.31 | 8.39 | ||||||||||||
1947 | 0.13 | a | 0.54 | 0.78 | 0.64 | 0.45 | 1.97 | 0.00 | 0.23 | 0.22 | 0.66 | 0.70 | a | 0.55 | 6.87 | |||||||||||
1948 | 0.39 | 0.33 | 1.30 | 0.73 | 1.43 | 2.08 | 0.20 | 0.61 | 1.54 | 0.38 | ----- | z | 1.24 | 10.23 | a | |||||||||||
1949 | 0.52 | 0.08 | 0.00 | h | 0.13 | 1.16 | 0.24 | 0.01 | 0.10 | 0.49 | 0.12 | 0.39 | 0.35 | 3.59 | a | |||||||||||
1950 | 0.73 | b | 0.36 | 0.88 | 0.21 | 0.49 | 1.34 | 0.00 | 0.06 | 0.02 | 0.40 | 1.25 | d | 1.70 | b | 7.44 | ||||||||||
1951 | 1.12 | b | 0.98 | 0.38 | c | 0.29 | 0.80 | 0.30 | 0.15 | 0.29 | 0.22 | 1.17 | b | 0.77 | 1.10 | 7.57 | ||||||||||
1952 | 0.31 | 1.22 | 0.95 | 0.54 | 1.03 | 1.85 | 0.10 | 0.00 | 0.78 | 0.00 | 0.13 | 0.60 | 7.51 | |||||||||||||
1953 | 0.66 | 0.54 | 0.42 | 0.55 | 2.70 | 1.58 | 0.06 | 0.51 | 0.00 | 0.21 | 1.07 | 1.14 | 9.44 | |||||||||||||
1954 | 0.54 | 0.21 | 1.09 | 0.32 | 0.94 | 2.55 | 0.01 | 0.13 | 0.06 | 0.25 | 0.74 | 0.93 | 7.77 | |||||||||||||
1955 | 0.25 | 0.10 | 0.24 | 0.73 | 0.77 | 0.66 | 0.90 | 0.00 | 0.89 | 0.33 | 1.05 | 1.48 | b | 7.40 | ||||||||||||
1956 | 2.52 | 0.15 | b | 0.28 | 0.38 | 1.24 | 0.40 | 1.32 | 0.28 | 0.03 | 2.14 | 0.07 | 0.68 | 9.49 | ||||||||||||
1957 | 0.69 | b | 1.16 | 1.57 | b | 1.13 | 1.90 | 0.16 | 0.18 | 0.00 | 0.01 | b | 2.13 | 0.77 | 0.72 | 10.42 | ||||||||||
1958 | 1.17 | 1.95 | b | 0.31 | 0.22 | 0.26 | 1.11 | 0.39 | 0.35 | 0.41 | 0.08 | 0.47 | 0.36 | 7.08 | ||||||||||||
1959 | 0.35 | 0.33 | 0.26 | 0.09 | 1.22 | 0.02 | 0.00 | 0.41 | 1.72 | 0.84 | 0.00 | 0.38 | 5.62 | |||||||||||||
1960 | 1.45 | 1.24 | 0.83 | 0.65 | 1.80 | 0.00 | 0.40 | 0.33 | 0.46 | 0.05 | 2.54 | 0.66 | 10.41 | |||||||||||||
1961 | 0.31 | 1.10 | 0.69 | 0.06 | 0.94 | 1.05 | 0.29 | 0.12 | 1.13 | 1.13 | 0.39 | 1.01 | 8.22 | |||||||||||||
1962 | 0.42 | 1.04 | 0.80 | 0.18 | 1.22 | 0.30 | 0.11 | 0.17 | 0.15 | 3.54 | 0.80 | 0.64 | 9.37 | |||||||||||||
1963 | 1.08 | 0.97 | 0.39 | 1.04 | 0.89 | 1.10 | 0.20 | 0.98 | 0.83 | 0.38 | 0.85 | 1.05 | 9.76 | |||||||||||||
1964 | 0.99 | 0.01 | 1.61 | 0.80 | 1.80 | 2.40 | 0.73 | 0.87 | 0.07 | 0.41 | 1.82 | 3.39 | 14.90 | |||||||||||||
1965 | 1.18 | 0.02 | 0.17 | 0.39 | 0.86 | 2.19 | 0.19 | 1.93 | 0.19 | 0.15 | 1.32 | 0.40 | 8.99 | |||||||||||||
1966 | 0.58 | 0.12 | 0.30 | 0.36 | 0.49 | 1.06 | 0.19 | 0.64 | 1.25 | 0.22 | 2.17 | 1.09 | 8.47 | |||||||||||||
1967 | 1.24 | 0.21 | 1.10 | 1.43 | 1.13 | 1.17 | 0.10 | 0.06 | 0.44 | 0.79 | 0.34 | 0.37 | 8.38 | |||||||||||||
1968 | 0.31 | 1.02 | 0.21 | 0.18 | 0.97 | 0.63 | 0.00 | 1.05 | 0.10 | 0.30 | 2.77 | 0.94 | 8.48 | |||||||||||||
1969 | 2.73 | 0.44 | 0.11 | 0.45 | 0.52 | 1.14 | 0.00 | 0.00 | 0.00 | 0.94 | 0.40 | 1.68 | 8.41 | |||||||||||||
1970 | 3.35 | 0.43 | 0.36 | 0.27 | 0.97 | 1.83 | 0.01 | 0.03 | 0.58 | 0.99 | 2.02 | 1.16 | 12.00 | |||||||||||||
1971 | 1.18 | 0.32 | 1.18 | 0.77 | 1.06 | 1.30 | 0.26 | 0.10 | 0.98 | 0.51 | 0.24 | 0.56 | 8.46 | |||||||||||||
1972 | 1.10 | 0.59 | 1.73 | 0.17 | 0.61 | 0.28 | 0.00 | 0.55 | 0.59 | 0.34 | 1.27 | 1.31 | 8.54 | |||||||||||||
1973 | 0.59 | 0.51 | 0.54 | 0.45 | 0.84 | 0.13 | 0.00 | 0.21 | 0.80 | 0.42 | 1.61 | d | 0.67 | j | 6.10 | a | ||||||||||
1974 | 0.86 | i | 0.38 | 1.44 | 0.63 | 0.33 | 0.07 | 1.27 | 0.37 | 0.00 | 0.42 | 0.10 | 1.32 | h | 5.01 | b | ||||||||||
1975 | 0.91 | 1.24 | 1.33 | 1.73 | 0.25 | 1.84 | 0.68 | 0.31 | 0.00 | 1.12 | 0.35 | 1.28 | g | 9.76 | a | |||||||||||
1976 | 0.95 | 1.14 | 0.32 | 0.56 | 0.19 | 0.66 | 0.54 | 4.00 | 0.63 | 0.11 | 0.43 | 0.09 | 9.62 | |||||||||||||
1977 | 0.56 | 0.13 | 0.19 | 0.00 | 1.89 | 0.79 | 0.49 | 0.31 | ----- | z | 0.69 | 1.72 | 0.72 | 7.49 | a | |||||||||||
1978 | 1.12 | o | 0.27 | b | 2.07 | 2.23 | 0.44 | 0.96 | 0.33 | 0.89 | 1.32 | 0.00 | 0.83 | 0.38 | 9.72 | a | ||||||||||
1979 | 1.79 | 0.23 | 1.34 | 0.81 | 0.52 | 0.52 | 0.46 | 2.74 | 0.46 | 1.37 | 1.57 | 0.56 | 12.37 | |||||||||||||
1980 | 0.53 | 1.16 | g | 1.31 | c | 0.44 | 2.41 | 0.80 | 0.77 | 0.00 | 0.49 | 1.12 | 0.51 | 0.73 | 9.11 | a | ||||||||||
1981 | 0.77 | 0.53 | 1.23 | 0.89 | 3.00 | 0.63 | 0.34 | 0.32 | 0.42 | 1.90 | 2.30 | 2.71 | 15.04 | |||||||||||||
1982 | 0.39 | a | 0.95 | 1.59 | 0.92 | 0.66 | 0.68 | 0.76 | a | 0.61 | 1.39 | 1.89 | 0.72 | 1.39 | 11.95 | |||||||||||
1983 | 0.56 | 1.44 | b | 3.84 | 1.14 | 2.05 | 0.51 | 0.81 | 1.09 | 0.08 | 0.99 | 2.69 | 2.58 | 17.78 | ||||||||||||
1984 | 0.33 | 0.44 | 1.01 | m | 0.94 | b | 0.95 | 1.42 | 1.26 | 1.08 | a | 0.12 | 1.43 | b | 1.46 | b | 0.34 | 9.77 | a | |||||||
1985 | 0.07 | 0.49 | b | 0.34 | 0.48 | 0.73 | 0.08 | 0.93 | 0.09 | 1.27 | ----- | z | ----- | z | ----- | z | 4.48 | c | ||||||||
1986 | ----- | z | ----- | z | 0.19 | a | 0.14 | a | 1.23 | a | 0.16 | f | 0.26 | 0.71 | g | ----- | z | 0.38 | f | 0.84 | ----- | z | 2.66 | g | ||
1987 | ----- | z | ----- | z | 0.31 | a | 1.22 | a | 0.95 | h | 1.90 | d | 0.63 | 0.04 | ----- | z | 0.00 | 1.39 | h | 0.80 | g | 4.10 | f | |||
1988 | ----- | z | 0.18 | l | 0.05 | g | 1.16 | b | 0.73 | b | 1.08 | a | 0.00 | 0.20 | 0.23 | 0.00 | 1.84 | d | 0.28 | n | 5.24 | d | ||||
1989 | 0.27 | b | ----- | z | 2.84 | c | 1.54 | c | 1.62 | a | 0.28 | 0.10 | 2.07 | a | 0.78 | 0.22 | 0.51 | a | 0.15 | 10.38 | a | |||||
1990 | 0.22 | 0.31 | a | 0.51 | e | 0.47 | 1.36 | 0.27 | c | 0.17 | 0.59 | 0.00 | 0.66 | a | 0.69 | 0.05 | 5.30 | |||||||||
1991 | 0.38 | 0.44 | b | 0.75 | g | 1.02 | d | 3.73 | a | 2.40 | m | ----- | z | 0.01 | i | 0.08 | 0.51 | a | 0.89 | g | 0.36 | 6.52 | e | |||
1992 | 0.14 | 0.64 | 0.55 | 0.88 | 0.17 | 1.76 | 0.24 | a | 0.02 | 0.20 | 1.47 | 0.84 | 1.30 | 8.21 | ||||||||||||
1993 | 1.40 | 0.96 | 2.15 | 1.50 | 1.02 | 1.63 | a | 0.96 | 0.43 | 0.00 | 0.89 | 0.31 | 0.48 | 11.73 | ||||||||||||
1994 | 0.41 | 1.63 | 0.58 | 0.97 | 1.95 | 0.75 | 0.00 | 0.00 | 0.85 | 0.50 | 1.69 | 1.03 | 10.36 | |||||||||||||
1995 | 1.90 | c | 0.36 | c | 1.63 | 1.27 | ----- | z | 1.60 | 0.71 | 0.03 | 0.03 | b | 0.39 | 0.65 | 2.90 | 11.47 | a | ||||||||
1996 | 2.17 | 0.96 | 0.74 | 1.37 | 2.00 | 0.63 | 0.00 | 0.11 | 0.56 | 0.75 | 1.19 | 1.93 | 12.41 | |||||||||||||
1997 | 2.93 | 0.25 | a | 0.30 | 1.16 | 0.59 | 0.68 | 0.50 | 0.31 | 0.40 | 0.23 | 1.08 | b | ----- | z | 8.43 | a | |||||||||
1998 | 2.00 | 1.31 | 1.18 | y | 1.92 | 1.29 | v | 0.52 | d | 0.20 | 0.00 | 1.40 | 0.19 | c | 3.04 | 1.12 | 11.70 | b | ||||||||
1999 | 1.58 | b | 1.60 | a | 1.04 | 0.62 | f | 0.72 | 0.43 | j | 0.12 | g | 0.36 | 0.00 | 0.29 | 0.16 | c | 0.35 | a | 6.10 | c | |||||
2000 | 1.50 | d | 1.64 | a | 0.86 | d | 0.85 | b | 0.54 | a | 0.18 | h | 0.07 | 0.00 | 0.98 | 2.47 | s | 0.53 | b | 0.50 | d | 7.47 | b | |||
2001 | 0.84 | f | 1.02 | b | 0.93 | 0.78 | 0.53 | i | 0.57 | 0.59 | 0.00 | 0.35 | a | 0.30 | k | 1.26 | 1.37 | d | 6.87 | c | ||||||
2002 | 0.91 | e | 0.52 | 0.33 | b | 1.05 | 1.03 | j | 0.40 | 0.56 | 0.32 | b | 0.00 | ----- | z | ----- | z | ----- | z | 4.09 | d | |||||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.14 | r | 1.48 | 0.48 | a | 0.64 | i | 0.05 | b | 0.15 | c | 0.99 | l | 2.16 | h | |
2004 | 0.09 | n | 0.91 | d | 0.24 | c | 0.31 | c | 0.62 | f | 0.66 | b | 0.56 | a | ----- | z | 0.01 | a | 0.38 | e | 0.14 | c | 0.54 | e | 3.75 | c |
2005 | ----- | z | 0.05 | d | 0.80 | d | 1.69 | f | 3.21 | j | ----- | z | 0.29 | f | ----- | z | 0.12 | c | 1.24 | d | 2.06 | i | 3.29 | k | 2.21 | h |
2006 | 0.87 | j | 0.41 | i | 1.11 | i | 1.65 | p | 1.08 | t | 1.10 | p | 0.19 | b | 0.04 | h | ----- | z | 0.94 | b | 1.03 | g | 0.98 | j | 1.13 | j |
2007 | 0.08 | d | 0.95 | i | 0.68 | g | 0.00 | 0.21 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.29 | i | ||
2008 | 1.00 | 0.34 | 0.68 | 0.37 | y | 1.19 | 0.76 | b | 0.00 | 0.00 | 0.15 | 0.49 | 0.55 | 0.00 | a | 5.16 | a | |||||||||
2009 | 0.00 | a | 0.00 | 0.05 | 0.26 | 1.02 | a | 2.77 | c | 0.05 | 0.60 | 0.05 | 0.46 | 0.10 | 0.86 | a | 6.22 | |||||||||
2010 | 1.09 | 0.45 | ----- | z | ----- | z | 1.03 | d | 1.47 | c | 0.18 | 0.12 | 0.33 | 1.38 | 1.58 | 0.00 | 7.63 | b | ||||||||
2011 | 0.13 | 0.00 | j | 0.40 | 0.00 | 1.90 | 1.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.53 | g | |||||
2012 | ----- | z | 0.20 | 2.10 | 0.92 | 0.26 | 1.80 | 0.00 | 0.00 | 1.10 | 2.00 | 1.00 | 2.00 | g | 9.38 | b | ||||||||||
2013 | 0.00 | a | 0.20 | a | 0.10 | 0.10 | a | 1.10 | e | 1.75 | c | 0.00 | 0.00 | j | 1.80 | k | 0.20 | v | 0.00 | g | 1.20 | e | 4.45 | d | ||
2014 | 4.00 | 0.35 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.00 | k | |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | 0.00 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.98 | 0.66 | 0.87 | 0.68 | 1.11 | 1.00 | 0.36 | 0.43 | 0.45 | 0.78 | 1.04 | 0.92 | 9.43 | |||||||||||||
S.D. | 0.82 | 0.48 | 0.71 | 0.50 | 0.73 | 0.70 | 0.38 | 0.67 | 0.46 | 0.70 | 0.78 | 0.70 | 2.61 | |||||||||||||
SKEW | 1.48 | 0.63 | 1.59 | 0.73 | 1.12 | 0.56 | 1.15 | 3.18 | 0.94 | 1.32 | 0.78 | 1.46 | 1.11 | |||||||||||||
MAX | 4.00 | 1.95 | 3.84 | 2.23 | 3.73 | 2.77 | 1.48 | 4.00 | 1.72 | 3.54 | 3.04 | 3.39 | 17.78 | |||||||||||||
MIN | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.30 | |||||||||||||
YRS | 66 | 65 | 67 | 70 | 67 | 68 | 72 | 69 | 68 | 70 | 66 | 61 | 41 |