YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.60 | l | 0.91 | d | 1.18 | 3.87 | 5.96 | i | ||
1952 | 1.23 | c | 2.70 | 3.42 | 0.80 | 0.90 | 0.00 | a | 1.30 | 7.69 | 4.70 | 0.00 | 0.34 | 0.66 | 23.74 | |||||||||||
1953 | 1.19 | 0.29 | 1.96 | 1.77 | 3.05 | 0.75 | e | 3.21 | 0.55 | 1.40 | 0.10 | a | 0.50 | 1.30 | a | 16.07 | ||||||||||
1954 | 0.00 | e | 0.00 | b | 0.60 | 0.30 | 1.03 | 0.20 | 1.47 | 0.10 | c | 2.85 | 0.83 | 1.65 | 0.46 | 9.49 | ||||||||||
1955 | ----- | z | 1.65 | ----- | z | ----- | z | 1.09 | c | 0.37 | a | 0.16 | 1.50 | 0.00 | 0.00 | ----- | z | ----- | z | 4.77 | e | |||||
1956 | 2.10 | 1.15 | 0.00 | 0.50 | 0.44 | a | 0.60 | 0.47 | 1.34 | 0.00 | 0.85 | 0.45 | ----- | z | 7.90 | a | ||||||||||
1957 | 2.61 | a | 0.00 | j | 0.87 | 0.87 | 3.35 | 0.95 | 2.14 | 2.69 | 0.25 | 1.85 | 0.60 | 1.50 | 17.68 | a | ||||||||||
1958 | 1.75 | b | 1.86 | 0.34 | 0.35 | 0.00 | 0.00 | 0.00 | 0.20 | 0.60 | 0.50 | 0.20 | 0.00 | k | 5.80 | a | ||||||||||
1959 | 1.10 | 0.98 | 0.60 | 1.47 | 0.26 | 1.41 | 0.54 | 2.32 | 1.79 | 1.80 | 0.16 | 0.75 | 13.18 | |||||||||||||
1960 | 0.92 | 2.41 | 2.67 | 0.25 | 0.70 | 0.15 | 0.36 | 0.53 | 0.62 | 0.73 | 0.40 | 0.90 | c | 10.64 | ||||||||||||
1961 | 0.03 | 0.98 | 0.85 | 0.00 | g | 0.15 | 0.00 | 0.17 | 1.89 | 2.32 | 1.26 | 0.34 | 1.15 | 9.14 | a | |||||||||||
1962 | 4.00 | a | 0.80 | 0.60 | 0.00 | 0.50 | 0.50 | 0.60 | 0.75 | 1.00 | 0.90 | ----- | z | 0.25 | 9.90 | a | ||||||||||
1963 | 0.20 | 0.35 | 1.75 | 0.00 | 0.25 | 0.00 | 0.83 | 2.25 | ----- | z | ----- | z | 0.20 | 0.45 | k | 5.83 | c | |||||||||
1964 | 1.18 | 0.60 | 1.72 | 0.88 | 0.69 | ----- | z | ----- | z | 1.30 | u | 0.50 | u | 0.00 | w | 0.35 | 1.19 | 6.61 | e | |||||||
1965 | 1.98 | 0.68 | 1.70 | 1.19 | 2.04 | 1.02 | 3.14 | 1.81 | 2.87 | 1.25 | 2.02 | 0.37 | 20.07 | |||||||||||||
1966 | 0.54 | 0.97 | 0.20 | 1.07 | 1.01 | 0.71 | 0.95 | 0.61 | 0.59 | 1.87 | 0.95 | 2.60 | 12.07 | |||||||||||||
1967 | 1.21 | 0.55 | 0.48 | 0.47 | 1.67 | 1.70 | 1.43 | 1.40 | 1.99 | 0.10 | 1.35 | 0.94 | 13.29 | |||||||||||||
1968 | 0.93 | 1.53 | 0.03 | 1.57 | 1.40 | 0.15 | ----- | z | ----- | z | 0.05 | 1.05 | 0.80 | 1.00 | 8.51 | b | ||||||||||
1969 | 2.00 | 1.55 | 1.29 | 1.02 | 0.17 | 2.56 | 2.29 | 0.32 | 0.17 | 4.24 | 0.66 | 0.78 | 17.05 | |||||||||||||
1970 | 0.12 | 0.13 | 2.42 | 0.72 | 0.20 | 0.95 | 1.78 | 2.82 | 2.96 | 2.18 | 1.18 | 0.16 | 15.62 | |||||||||||||
1971 | 0.10 | 0.26 | 0.36 | 0.55 | 0.85 | 0.00 | 0.56 | 2.21 | 1.05 | 2.00 | 0.87 | 1.13 | 9.94 | |||||||||||||
1972 | 0.80 | 0.10 | 0.10 | 1.05 | 0.25 | 2.67 | 0.78 | 0.74 | 2.65 | 2.19 | 1.62 | 0.54 | 13.49 | |||||||||||||
1973 | 0.51 | 0.01 | 0.21 | 1.58 | 1.20 | 1.53 | 0.59 | 0.90 | 0.15 | 0.25 | a | 0.96 | 1.43 | 9.32 | ||||||||||||
1974 | 2.90 | 1.30 | 0.63 | 1.58 | 0.00 | 0.15 | 0.74 | 0.82 | 1.27 | 1.85 | 1.03 | 0.34 | 12.61 | |||||||||||||
1975 | 0.68 | 0.20 | 1.30 | 0.80 | 0.59 | 0.58 | 0.92 | 0.23 | 0.00 | 1.10 | 1.55 | 0.35 | 8.30 | |||||||||||||
1976 | 0.85 | 1.15 | 0.49 | 0.20 | 0.93 | 0.31 | 1.16 | 1.95 | 1.26 | 0.10 | 0.00 | 0.02 | 8.42 | |||||||||||||
1977 | 0.16 | 0.65 | 0.59 | 0.22 | 0.70 | 0.52 | 2.41 | 1.02 | 1.36 | 1.70 | 1.45 | 0.22 | 11.00 | |||||||||||||
1978 | 1.25 | 0.82 | 2.48 | 1.02 | 0.33 | 0.22 | 1.78 | 0.15 | 0.12 | 2.10 | 0.53 | 1.92 | 12.72 | |||||||||||||
1979 | 0.98 | 0.77 | 0.71 | 0.90 | 1.65 | 1.52 | 1.99 | 1.71 | 0.00 | 1.28 | 0.53 | b | 0.22 | 12.26 | ||||||||||||
1980 | 2.00 | 0.55 | g | 1.16 | 0.59 | 1.85 | 0.01 | 1.00 | 0.72 | 0.40 | 1.79 | 0.80 | 0.35 | a | 10.67 | a | ||||||||||
1981 | 0.51 | 0.53 | 1.77 | 0.60 | 0.99 | 0.65 | 3.46 | 2.16 | 1.35 | 1.58 | 0.70 | 0.82 | 15.12 | |||||||||||||
1982 | 0.33 | 0.76 | 1.20 | 0.01 | 0.02 | 0.30 | 1.00 | 1.55 | 3.00 | 1.09 | 0.65 | 0.24 | 10.15 | |||||||||||||
1983 | 0.30 | 0.16 | 0.43 | b | 0.23 | a | 2.96 | 0.47 | 2.27 | 1.67 | 0.25 | 0.00 | 2.12 | 2.52 | 13.38 | |||||||||||
1984 | 0.24 | 1.25 | 0.78 | 0.21 | 0.60 | 2.15 | 1.27 | 1.97 | 1.23 | 1.85 | 0.30 | 0.14 | 11.99 | |||||||||||||
1985 | 0.13 | 0.11 | a | 1.60 | 1.37 | 1.75 | 0.39 | 1.61 | 0.79 | 3.87 | 1.38 | 1.84 | 0.55 | 15.39 | ||||||||||||
1986 | 0.51 | 0.37 | 0.75 | 2.17 | 1.20 | 1.01 | 1.36 | 1.89 | 2.05 | 1.04 | 3.10 | 0.49 | 15.94 | |||||||||||||
1987 | 0.49 | a | 1.60 | a | 1.25 | 1.11 | 2.43 | 0.65 | 0.97 | 1.51 | 0.29 | 1.53 | 1.59 | 0.91 | 14.33 | |||||||||||
1988 | 1.55 | 0.65 | 0.43 | 1.13 | 0.80 | 0.53 | 1.07 | 2.36 | 1.35 | 0.84 | 2.39 | a | 0.88 | 13.98 | ||||||||||||
1989 | 1.02 | 1.10 | 0.81 | 0.36 | 0.25 | 0.45 | 1.73 | 1.30 | 0.77 | 1.05 | 0.07 | 0.50 | 9.41 | |||||||||||||
1990 | 0.49 | 0.22 | ----- | z | 3.65 | 0.77 | 0.35 | 1.49 | 0.92 | 2.82 | 2.00 | 1.28 | 0.86 | 14.85 | a | |||||||||||
1991 | 0.97 | 0.31 | 1.29 | 1.02 | 0.62 | 0.69 | 1.25 | 0.85 | 1.97 | 1.45 | 2.06 | 0.20 | 12.68 | |||||||||||||
1992 | 0.10 | 0.80 | 3.02 | 0.78 | a | 3.84 | 0.34 | 2.29 | 2.31 | 0.50 | 0.98 | 1.66 | 0.29 | 16.91 | ||||||||||||
1993 | 1.55 | 1.96 | 2.10 | 1.10 | 1.78 | 0.86 | 0.00 | 1.77 | 0.54 | 1.82 | 0.90 | 0.52 | 14.90 | |||||||||||||
1994 | 1.07 | 1.30 | 0.12 | 0.97 | 0.50 | 0.95 | 0.00 | 1.70 | 2.00 | 1.02 | 1.77 | 0.02 | a | 11.42 | ||||||||||||
1995 | 0.76 | b | 0.29 | 3.11 | 2.06 | ----- | z | 2.60 | 2.41 | 0.61 | 2.62 | 0.64 | 0.55 | 1.04 | 16.69 | a | ||||||||||
1996 | 2.08 | 1.21 | b | 0.63 | 0.85 | 0.44 | 0.84 | 0.63 | 0.00 | 3.43 | 1.94 | 0.54 | 0.94 | 13.53 | ||||||||||||
1997 | 1.35 | i | 1.39 | 0.74 | 2.30 | 2.46 | 1.84 | 0.66 | 2.27 | 1.65 | 2.33 | 0.25 | c | 1.51 | 17.40 | a | ||||||||||
1998 | 1.63 | c | 1.21 | d | 0.85 | a | 2.27 | c | 0.66 | 0.14 | 0.58 | 1.30 | 1.36 | 2.70 | 0.49 | 1.04 | 14.23 | |||||||||
1999 | 1.44 | 0.69 | a | 0.07 | 2.34 | 2.00 | 1.92 | 1.33 | 2.41 | 1.41 | 0.33 | 0.12 | 1.43 | a | 15.49 | |||||||||||
2000 | 0.89 | 0.43 | b | 0.47 | b | 0.49 | 1.49 | 0.47 | 1.24 | 0.95 | 1.67 | 1.34 | 1.21 | 1.12 | 11.77 | |||||||||||
2001 | 0.86 | 0.72 | 0.29 | 0.16 | y | 1.40 | 1.65 | 2.14 | 3.10 | 0.55 | 0.95 | 1.18 | 0.28 | 13.12 | a | |||||||||||
2002 | 0.64 | a | 0.14 | b | 0.45 | 0.44 | 0.00 | 0.00 | 1.21 | 2.02 | 4.04 | 2.06 | 1.17 | 1.25 | 13.42 | |||||||||||
2003 | 0.64 | 3.04 | a | 0.61 | 0.53 | 0.43 | 0.37 | 0.50 | 1.03 | 1.80 | 0.79 | 2.16 | 1.56 | 13.46 | ||||||||||||
2004 | 1.20 | a | 0.76 | a | 0.15 | 3.47 | 0.00 | a | 0.10 | 0.35 | 0.77 | 1.82 | 0.75 | 1.70 | 0.11 | a | 11.18 | |||||||||
2005 | 0.46 | 0.46 | 0.71 | 0.21 | 0.14 | 0.60 | 0.00 | b | 0.86 | a | 1.96 | 1.46 | 0.70 | 3.20 | 10.76 | |||||||||||
2006 | 0.73 | a | 0.06 | 0.77 | 0.66 | 0.38 | 0.77 | 2.62 | 2.03 | 3.13 | 4.42 | 0.83 | b | 1.42 | 17.82 | |||||||||||
2007 | 1.42 | 1.80 | 0.18 | 1.12 | 0.99 | 0.45 | 2.35 | 1.84 | 4.13 | a | 1.49 | 0.22 | 3.84 | 19.83 | ||||||||||||
2008 | 2.88 | b | 1.33 | a | 0.90 | a | 1.13 | 1.23 | 0.63 | 1.06 | 0.24 | 1.02 | 0.39 | 0.66 | 2.56 | 14.03 | ||||||||||
2009 | 0.04 | e | 0.52 | 1.07 | 1.66 | 2.36 | 0.89 | 0.79 | 0.34 | 0.60 | 1.21 | 0.90 | 0.77 | 11.15 | ||||||||||||
2010 | 0.23 | 1.14 | 0.54 | 0.61 | 0.30 | 0.32 | 0.16 | 2.49 | 1.74 | a | 1.73 | 1.10 | 0.15 | 10.51 | ||||||||||||
2011 | 3.56 | r | 0.33 | r | 0.70 | u | 2.29 | p | 2.29 | o | ----- | z | 2.38 | q | 1.01 | t | 0.89 | u | 1.68 | u | 0.79 | v | ----- | z | 0.00 | l |
2012 | 1.49 | x | 1.51 | q | ----- | z | ----- | z | ----- | z | ----- | z | 2.76 | 1.50 | 1.24 | 0.50 | 0.43 | 1.76 | 8.19 | f | ||||||
2013 | 1.46 | 1.13 | 0.88 | 0.62 | 0.43 | 0.00 | 2.69 | 1.70 | 3.20 | 1.31 | 0.77 | 0.82 | 15.01 | |||||||||||||
2014 | 0.76 | 1.28 | 0.48 | 1.13 | 1.61 | 0.00 | 3.48 | 1.87 | 4.33 | 1.00 | 0.57 | 0.71 | 17.22 | |||||||||||||
2015 | 0.15 | 1.03 | 0.66 | 0.85 | 3.67 | 1.46 | 0.82 | 1.35 | 1.07 | 1.82 | 1.43 | 1.40 | 15.71 | |||||||||||||
2016 | 1.52 | 0.54 | 0.96 | 0.96 | 0.92 | a | 0.21 | 0.47 | 2.01 | 1.13 | 0.29 | 2.05 | 1.40 | 12.46 | ||||||||||||
2017 | 2.05 | 1.09 | 0.91 | 1.19 | 1.31 | 0.06 | 1.67 | 1.24 | 1.84 | 0.43 | 0.41 | 0.27 | 12.47 | |||||||||||||
2018 | 1.23 | 1.36 | 0.61 | 3.28 | 0.33 | 0.54 | 0.83 | 0.66 | 0.98 | 2.84 | 0.72 | 1.33 | 14.71 | |||||||||||||
2019 | 0.96 | 1.95 | 3.82 | 1.99 | 2.62 | 0.90 | 0.78 | 0.83 | 0.07 | 0.37 | 1.68 | 0.86 | 16.83 | |||||||||||||
2020 | 0.90 | 0.25 | 1.09 | 0.72 | 0.39 | 0.44 | 0.96 | 0.33 | 1.28 | 0.45 | 1.16 | 1.28 | 9.25 | |||||||||||||
2021 | 0.43 | 1.02 | 1.24 | 0.21 | 0.36 | 1.08 | 1.88 | 2.04 | 1.18 | 1.09 | 0.36 | 1.29 | 12.18 | |||||||||||||
2022 | 0.44 | 0.76 | 0.98 | 0.64 | 0.58 | 0.56 | 2.12 | 0.83 | 0.77 | 2.70 | 0.45 | 1.31 | 12.14 | |||||||||||||
2023 | 1.27 | 1.65 | 2.91 | 1.12 | 0.75 | 0.55 | 0.04 | 0.59 | 0.48 | 2.06 | 0.42 | 0.84 | 12.68 | |||||||||||||
2024 | 0.81 | 1.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.88 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.02 | 0.93 | 1.05 | 1.03 | 1.06 | 0.71 | 1.29 | 1.44 | 1.52 | 1.31 | 0.96 | 1.01 | 13.44 | |||||||||||||
S.D. | 0.78 | 0.65 | 0.87 | 0.79 | 0.93 | 0.66 | 0.90 | 1.08 | 1.19 | 0.88 | 0.65 | 0.82 | 3.03 | |||||||||||||
SKEW | 1.25 | 0.89 | 1.38 | 1.41 | 1.22 | 1.33 | 0.63 | 2.82 | 0.80 | 1.06 | 0.85 | 1.61 | 0.83 | |||||||||||||
MAX | 4.00 | 3.04 | 3.82 | 3.65 | 3.84 | 2.67 | 3.48 | 7.69 | 4.70 | 4.42 | 3.10 | 3.87 | 23.74 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 8.30 | |||||||||||||
YRS | 69 | 69 | 68 | 67 | 69 | 69 | 69 | 69 | 69 | 70 | 70 | 68 | 56 |