YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.79 | 1.46 | ----- | z | 0.39 | y | 4.25 | j | ||
1939 | 1.98 | 1.08 | 0.71 | 1.14 | 0.03 | 0.34 | 0.89 | 1.77 | 1.47 | 0.73 | 0.82 | 0.42 | 11.38 | |||||||||||||
1940 | 1.67 | 1.18 | 1.94 | 0.31 | 1.36 | 0.97 | 0.71 | 0.91 | s | 1.41 | q | 1.38 | a | 1.27 | a | 2.70 | 13.49 | b | ||||||||
1941 | 2.44 | r | 1.46 | c | 2.55 | b | 1.43 | o | 1.77 | 3.19 | o | 1.11 | u | 1.04 | 3.15 | 3.33 | b | 0.37 | 1.76 | 15.43 | d | |||||
1942 | 0.25 | 1.15 | 1.60 | 3.50 | 0.22 | 1.02 | 0.50 | 1.04 | q | 2.46 | 1.22 | 0.07 | a | 1.54 | a | 13.53 | a | |||||||||
1943 | 0.69 | 0.56 | a | 1.81 | v | 0.36 | 0.33 | 0.90 | ----- | z | 3.91 | 0.99 | 1.23 | 0.39 | 0.92 | 10.28 | b | |||||||||
1944 | 0.65 | 0.93 | 0.65 | q | 1.41 | 0.88 | 0.14 | 2.99 | 2.80 | 1.91 | 1.65 | 0.79 | 1.56 | 15.71 | a | |||||||||||
1945 | 0.58 | 0.79 | 1.47 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.84 | i | |||
1946 | 0.55 | 0.51 | 2.25 | 0.60 | 0.65 | 0.00 | 2.29 | 3.44 | 0.78 | 2.09 | ----- | z | 0.30 | 13.46 | a | |||||||||||
1947 | 1.46 | 1.73 | 0.60 | d | 0.14 | 1.17 | 0.30 | ----- | z | 5.13 | 0.00 | n | 1.17 | 0.45 | 1.09 | 13.24 | b | |||||||||
1948 | 0.72 | 1.99 | 2.97 | 0.91 | 1.29 | 1.45 | 0.88 | 2.32 | 1.92 | e | 1.64 | 0.66 | 1.07 | 17.82 | ||||||||||||
1949 | 3.47 | 1.87 | 0.40 | t | 0.58 | o | 1.20 | 1.82 | 2.62 | 0.96 | a | 1.37 | 0.89 | 0.45 | 0.64 | 15.29 | b | |||||||||
1950 | ----- | z | ----- | z | 0.37 | 0.50 | 0.07 | 1.24 | 2.30 | 0.68 | 1.77 | a | 0.00 | 0.30 | 0.14 | 7.37 | b | |||||||||
1951 | 2.19 | 1.54 | 1.06 | 1.96 | 1.10 | 0.24 | 1.35 | 2.84 | 0.16 | 0.99 | b | 0.91 | 2.02 | 16.36 | ||||||||||||
1952 | 1.07 | 0.29 | 0.88 | 1.04 | 1.02 | 0.44 | 2.63 | 2.79 | 0.35 | 0.00 | 1.92 | 0.53 | 12.96 | |||||||||||||
1953 | 0.33 | 0.56 | 0.55 | 1.20 | 0.99 | 0.82 | 3.00 | 1.27 | 0.13 | 1.54 | 1.08 | 0.97 | 12.44 | |||||||||||||
1954 | 0.65 | 0.14 | 2.28 | 0.33 | 2.16 | 0.29 | 2.93 | 1.44 | 2.43 | 0.42 | 0.20 | 0.06 | 13.33 | |||||||||||||
1955 | 1.09 | 1.31 | ----- | z | 0.55 | 2.16 | 0.19 | 1.30 | 2.03 | 0.60 | 0.00 | 0.75 | 1.23 | 11.21 | a | |||||||||||
1956 | 2.04 | 0.12 | 0.15 | 0.09 | 0.62 | 0.40 | 1.46 | 0.84 | 0.00 | 0.49 | 0.11 | 0.00 | 6.32 | |||||||||||||
1957 | 2.80 | 1.10 | a | 1.56 | 1.08 | 3.17 | 0.89 | 3.81 | 3.85 | 0.00 | 2.72 | 2.96 | 0.38 | 24.32 | ||||||||||||
1958 | 1.36 | 1.51 | 1.81 | 1.94 | 0.53 | 0.42 | 1.50 | 2.30 | 1.74 | 0.75 | 0.83 | 0.07 | 14.76 | |||||||||||||
1959 | 0.36 | 0.58 | 0.61 | 2.10 | 1.41 | 0.22 | 1.14 | 3.21 | 0.71 | 2.28 | 0.21 | 1.76 | 14.59 | |||||||||||||
1960 | 1.63 | 1.21 | 1.23 | 1.04 | 0.44 | 1.05 | 1.58 | 0.80 | 0.54 | 1.44 | 0.31 | 0.63 | 11.90 | |||||||||||||
1961 | 0.82 | 0.67 | 2.10 | 1.47 | 0.27 | 0.75 | 1.28 | 4.64 | 2.21 | 2.16 | 0.83 | 0.95 | 18.15 | |||||||||||||
1962 | 0.89 | 1.35 | 1.19 | 0.88 | 0.20 | 0.26 | 1.77 | 0.81 | 2.87 | 1.17 | 1.98 | 0.22 | 13.59 | |||||||||||||
1963 | 0.72 | 1.23 | 1.57 | 0.21 | 0.00 | 0.34 | 1.14 | 3.33 | 0.81 | 0.54 | 0.60 | 0.11 | 10.60 | |||||||||||||
1964 | 0.95 | 1.33 | 0.90 | 1.66 | 0.76 | ----- | z | 2.57 | 2.68 | 1.94 | 0.00 | 1.38 | 2.59 | 16.76 | a | |||||||||||
1965 | 1.77 | 1.04 | 1.01 | 0.47 | 1.12 | 1.84 | 1.91 | 2.15 | 2.31 | 1.71 | 1.21 | 1.32 | 17.86 | |||||||||||||
1966 | 0.60 | 0.44 | 0.44 | 0.70 | 0.22 | 2.99 | 1.56 | 3.99 | 0.60 | 0.27 | 0.79 | 1.94 | 14.54 | |||||||||||||
1967 | 0.60 | 0.24 | 0.35 | 0.22 | 0.60 | 2.08 | 3.29 | 4.54 | 1.39 | 0.37 | 0.51 | 1.94 | 16.13 | |||||||||||||
1968 | 0.46 | 1.04 | 0.69 | 1.34 | 1.62 | 0.73 | 3.15 | 3.99 | 0.15 | 0.43 | 1.07 | 0.75 | 15.42 | |||||||||||||
1969 | 2.99 | 0.62 | 0.88 | 0.45 | 1.19 | 1.62 | 5.07 | 3.82 | 1.67 | 3.17 | 0.44 | 1.22 | 23.14 | |||||||||||||
1970 | 0.29 | 0.21 | 1.30 | 1.09 | 0.32 | 1.27 | 2.35 | 2.56 | 1.82 | 1.41 | 0.74 | 0.70 | 14.06 | |||||||||||||
1971 | 0.52 | 0.81 | 0.15 | 1.27 | 0.53 | 0.14 | 2.07 | 1.59 | 2.71 | 2.16 | 0.84 | 2.00 | 14.79 | |||||||||||||
1972 | 0.42 | 0.21 | 0.29 | 0.17 | 0.52 | 0.65 | 2.00 | 2.29 | 1.69 | 3.55 | 1.67 | 1.10 | 14.56 | |||||||||||||
1973 | 0.72 | 0.49 | 1.86 | 0.49 | 1.11 | 0.60 | 2.95 | 0.83 | 0.87 | 1.05 | 0.67 | 0.35 | 11.99 | |||||||||||||
1974 | 2.25 | 0.28 | 0.96 | 0.56 | 0.00 | 0.05 | 2.08 | 1.86 | 0.15 | 3.28 | 0.89 | 0.47 | 12.83 | |||||||||||||
1975 | 0.81 | 1.40 | 1.83 | 0.87 | 0.11 | 0.24 | 3.67 | 0.73 | 2.04 | 0.00 | 1.65 | 0.14 | 13.49 | |||||||||||||
1976 | 0.06 | 0.51 | 0.56 | 1.37 | 1.06 | 0.57 | 1.95 | 2.32 | 2.10 | 0.40 | 0.04 | 0.20 | 11.14 | |||||||||||||
1977 | 1.02 | 0.22 | 0.08 | 1.62 | 1.41 | 0.40 | 4.39 | 2.93 | 1.53 | 0.28 | 1.32 | 0.21 | 15.41 | |||||||||||||
1978 | 1.51 | 1.11 | 2.67 | 0.33 | 1.98 | 1.55 | 1.50 | 2.22 | 0.57 | 1.36 | 2.01 | 1.52 | 18.33 | |||||||||||||
1979 | 3.77 | 0.93 | 0.69 | 0.93 | 2.22 | 1.54 | 0.87 | 1.68 | 0.12 | 0.90 | 0.82 | 0.81 | 15.28 | |||||||||||||
1980 | 2.41 | 1.75 | 1.52 | 1.54 | 1.41 | 0.00 | 1.70 | 3.46 | 0.78 | 1.04 | 0.63 | 0.42 | 16.66 | |||||||||||||
1981 | 0.13 | 0.42 | 1.70 | 0.72 | 1.71 | 1.20 | 3.96 | 3.26 | 0.89 | 0.32 | 0.25 | 0.69 | 15.25 | |||||||||||||
1982 | 1.98 | 2.11 | 1.21 | 0.10 | 1.90 | 0.74 | 2.57 | 4.46 | 3.11 | 0.73 | 1.03 | 1.43 | 21.37 | |||||||||||||
1983 | 0.95 | 0.42 | 2.19 | a | 0.62 | 0.37 | 0.63 | 1.25 | 3.40 | 0.72 | 1.14 | 2.41 | 1.58 | 15.68 | ||||||||||||
1984 | 1.77 | 0.58 | 0.44 | 0.24 | 0.17 | 1.80 | 2.31 | 3.11 | 0.85 | 3.63 | 0.40 | 1.01 | 16.31 | |||||||||||||
1985 | 0.85 | 0.58 | 2.19 | 1.86 | 1.10 | 1.30 | 1.55 | 1.79 | 3.05 | 2.64 | 1.46 | 0.12 | 18.49 | |||||||||||||
1986 | 0.28 | 1.64 | 0.96 | 0.60 | 1.77 | 1.98 | 1.56 | 3.17 | 2.06 | 1.66 | 1.70 | 0.65 | 18.03 | |||||||||||||
1987 | 0.82 | 1.57 | 0.36 | 0.53 | 3.50 | 1.37 | 1.06 | 2.96 | 0.53 | 0.52 | 2.40 | 1.22 | a | 16.84 | ||||||||||||
1988 | 1.67 | 0.25 | 0.15 | 1.17 | 0.97 | 2.15 | 1.35 | 4.98 | 1.78 | 0.12 | 1.48 | 0.36 | 16.43 | |||||||||||||
1989 | 0.50 | 1.14 | 0.30 | 0.30 | a | 0.27 | 1.02 | 2.37 | 2.25 | 0.72 | 1.40 | 0.30 | 0.40 | 10.97 | ||||||||||||
1990 | 0.49 | 0.48 | 2.19 | 2.12 | 0.70 | 1.11 | 4.02 | 1.15 | 1.78 | 0.92 | 2.21 | 3.05 | 20.22 | |||||||||||||
1991 | 0.64 | 0.35 | 1.33 | 0.15 | 1.95 | 2.08 | 3.88 | 3.46 | 2.17 | 0.38 | 2.44 | 1.95 | c | 20.78 | ||||||||||||
1992 | 0.50 | 0.55 | 2.81 | 0.13 | 2.96 | 0.74 | 1.64 | 3.58 | 0.49 | 0.25 | 1.15 | 1.32 | 16.12 | |||||||||||||
1993 | 1.57 | 0.82 | 0.94 | 0.05 | 0.22 | a | 0.00 | 0.15 | 4.08 | 0.78 | 1.40 | 1.66 | 0.48 | 12.15 | ||||||||||||
1994 | 0.74 | 1.39 | 1.31 | 1.88 | 2.19 | 0.56 | 1.31 | 2.20 | a | 1.30 | 1.71 | 3.33 | b | 0.40 | 18.32 | |||||||||||
1995 | 1.90 | 0.62 | 2.17 | 1.33 | 1.57 | 0.55 | 0.25 | 1.98 | 2.13 | 0.00 | 0.37 | 0.15 | 13.02 | |||||||||||||
1996 | 1.16 | 0.55 | 0.63 | 0.00 | 0.00 | 1.49 | 3.05 | 2.69 | 1.72 | 0.25 | 1.84 | 1.27 | 14.65 | |||||||||||||
1997 | 2.07 | b | 0.29 | 0.15 | 0.81 | 2.67 | 1.18 | 2.23 | 2.74 | 2.16 | 1.09 | 1.30 | 0.96 | 17.65 | ||||||||||||
1998 | 0.37 | 1.13 | 0.80 | f | 0.68 | 0.13 | 0.20 | 4.26 | 2.04 | 2.44 | 3.60 | 0.73 | c | 0.30 | a | 15.88 | a | |||||||||
1999 | 1.50 | 0.19 | 0.74 | 3.45 | 1.27 | 2.52 | 2.49 | 2.81 | 0.85 | 0.00 | b | 0.10 | 0.18 | a | 16.10 | |||||||||||
2000 | 0.31 | b | 0.22 | 1.53 | 0.60 | a | 0.66 | 1.27 | 1.64 | 1.52 | 0.11 | 2.61 | 0.67 | 0.66 | 11.80 | |||||||||||
2001 | 0.14 | 1.69 | 1.05 | 0.44 | 1.03 | 0.07 | 1.52 | 3.22 | 0.25 | 0.25 | 1.35 | 0.53 | 11.54 | |||||||||||||
2002 | 0.48 | ----- | z | 0.08 | 0.50 | 0.00 | 0.23 | 1.95 | 1.42 | 5.46 | 1.45 | 1.46 | 1.04 | 14.07 | a | |||||||||||
2003 | 0.34 | 1.40 | 1.28 | 0.59 | 0.38 | 0.39 | 2.24 | 1.49 | 1.97 | 0.90 | 0.94 | 0.90 | b | 12.82 | ||||||||||||
2004 | 1.32 | b | 1.04 | 0.02 | 2.74 | d | 0.16 | 0.72 | 2.24 | 1.49 | 1.00 | 1.63 | 0.63 | 0.31 | 13.30 | |||||||||||
2005 | 2.16 | 1.91 | k | 1.20 | 1.36 | 1.40 | 0.28 | 1.35 | 2.06 | 2.50 | 2.24 | 0.10 | 0.21 | 14.86 | a | |||||||||||
2006 | 0.40 | 0.09 | 1.29 | 0.67 | 0.44 | 1.12 | 2.69 | 4.81 | 2.99 | 1.31 | b | 0.37 | 1.92 | 18.10 | ||||||||||||
2007 | 1.42 | 0.70 | 0.64 | 1.84 | 2.73 | 0.13 | 1.88 | 3.25 | 2.17 | 0.55 | 0.39 | 2.92 | 18.62 | |||||||||||||
2008 | 0.83 | a | 1.28 | 0.00 | 0.00 | 0.79 | 0.52 | 1.73 | a | 2.24 | 0.40 | 1.30 | 0.00 | 2.48 | a | 11.57 | ||||||||||
2009 | 0.90 | 0.15 | 0.10 | 0.82 | e | 0.93 | 2.00 | 2.49 | b | 1.56 | 1.33 | 1.64 | 0.40 | 1.34 | 13.66 | |||||||||||
2010 | 1.37 | 1.39 | 1.82 | a | 1.31 | 0.15 | ----- | z | 4.54 | d | 1.24 | 0.86 | 0.77 | 0.30 | 1.69 | d | 15.44 | a | ||||||||
2011 | ----- | z | ----- | z | ----- | z | 1.51 | y | ----- | z | 0.00 | ----- | z | ----- | z | 2.25 | w | ----- | z | ----- | z | 1.52 | y | 0.00 | k | |
2012 | ----- | z | 0.48 | y | ----- | z | 0.35 | ----- | z | ----- | z | ----- | z | 1.41 | ----- | z | ----- | z | ----- | z | ----- | z | 1.76 | j | ||
2013 | 0.34 | ----- | z | ----- | z | 0.00 | 0.63 | j | 0.00 | 1.06 | 2.22 | a | 3.48 | 0.35 | 1.74 | 0.37 | 9.56 | c | ||||||||
2014 | 0.00 | 0.00 | 0.13 | 0.01 | 1.01 | 0.02 | 4.17 | 1.12 | 1.24 | 0.59 | 0.46 | 1.48 | c | 10.23 | ||||||||||||
2015 | 1.24 | d | 1.52 | 0.67 | 0.86 | 3.12 | 1.09 | 1.74 | 1.47 | 1.18 | 1.90 | 1.26 | 1.12 | 17.17 | ||||||||||||
2016 | 1.33 | 0.25 | a | 0.00 | p | 0.45 | a | 0.00 | k | 0.48 | 1.32 | 4.18 | 1.71 | ----- | z | ----- | z | ----- | z | 9.72 | e | |||||
2017 | ----- | z | ----- | z | 0.20 | 0.06 | 0.80 | 0.13 | 3.96 | 1.37 | 2.81 | 1.01 | 0.00 | 0.00 | 10.34 | b | ||||||||||
2018 | 0.24 | 1.14 | 0.86 | 0.00 | a | 0.87 | 0.80 | 5.57 | 2.64 | 0.64 | 2.95 | 0.15 | a | 0.23 | p | 15.86 | a | |||||||||
2019 | ----- | z | 2.89 | 2.75 | 1.37 | 2.00 | 2.47 | 0.76 | 1.95 | 0.70 | 0.28 | b | 0.94 | 1.90 | 18.01 | a | ||||||||||
2020 | 0.66 | 0.41 | a | 1.25 | h | 0.01 | 0.35 | b | 1.08 | b | 0.95 | f | 0.58 | g | 1.72 | f | 1.04 | l | 0.48 | f | 1.12 | c | 3.63 | f | ||
2021 | 0.92 | d | 0.64 | b | 0.90 | g | 0.23 | a | 1.70 | f | 0.51 | f | 2.59 | h | 2.21 | e | 1.93 | d | 0.37 | p | 0.25 | 2.67 | f | 6.18 | f | |
2022 | 0.01 | i | 1.20 | f | 1.31 | g | 0.00 | e | 0.02 | b | 2.28 | c | 2.53 | g | 3.03 | d | 2.63 | f | 2.00 | r | 1.10 | h | 0.60 | h | 5.33 | h |
2023 | 1.60 | i | 1.27 | f | 2.13 | g | 0.25 | d | 3.55 | f | 0.87 | e | 0.41 | k | 0.88 | g | 2.48 | j | 0.16 | i | 0.96 | h | 0.63 | j | 1.12 | j |
2024 | 0.79 | j | 1.52 | k | 1.25 | o | 0.28 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.08 | 0.89 | 1.13 | 0.85 | 1.04 | 0.88 | 2.20 | 2.50 | 1.49 | 1.23 | 0.95 | 0.99 | 15.20 | |||||||||||||
S.D. | 0.80 | 0.58 | 0.79 | 0.75 | 0.85 | 0.71 | 1.15 | 1.13 | 1.01 | 0.96 | 0.73 | 0.75 | 3.33 | |||||||||||||
SKEW | 1.19 | 0.69 | 0.50 | 1.33 | 0.90 | 0.82 | 0.77 | 0.37 | 0.85 | 0.83 | 1.02 | 0.77 | 0.30 | |||||||||||||
MAX | 3.77 | 2.89 | 2.97 | 3.50 | 3.50 | 2.99 | 5.57 | 5.13 | 5.46 | 3.63 | 3.33 | 3.05 | 24.32 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.68 | 0.00 | 0.00 | 0.00 | 0.00 | 6.32 | |||||||||||||
YRS | 77 | 76 | 72 | 81 | 78 | 79 | 75 | 79 | 78 | 78 | 77 | 77 | 58 |