YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1942 | 0.44 | a | 1.65 | 0.40 | a | 3.49 | 0.05 | 2.28 | 4.30 | 7.37 | 1.89 | 2.73 | 0.00 | 3.35 | 27.95 | |||||||||||
1943 | 0.97 | 0.00 | 1.60 | 0.54 | 1.51 | 2.74 | ----- | z | ----- | z | 0.55 | d | 1.14 | ----- | z | 1.71 | 10.76 | c | ||||||||
1944 | 1.86 | 0.64 | 0.24 | 0.77 | 0.80 | 3.75 | ----- | z | 3.94 | 2.67 | 0.43 | 1.57 | 1.34 | 18.01 | a | |||||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.18 | 1.94 | 4.69 | 0.83 | 0.78 | 0.00 | 1.01 | 9.43 | e | |||||||
1946 | 2.01 | 0.24 | 1.54 | 0.24 | 0.47 | 2.17 | 5.97 | 7.27 | 2.92 | 0.64 | 0.53 | 0.81 | 24.81 | |||||||||||||
1947 | 1.08 | 0.54 | 0.75 | 0.61 | 1.36 | 0.69 | 1.30 | 3.54 | 1.11 | 0.76 | 1.42 | 1.34 | l | 13.16 | a | |||||||||||
1948 | 0.58 | 2.61 | 1.82 | 0.37 | 1.94 | 3.66 | 5.58 | 1.12 | 0.92 | 1.48 | 0.02 | 2.59 | 22.69 | |||||||||||||
1949 | 2.52 | 2.18 | 0.55 | 1.68 | 0.39 | 1.48 | 4.80 | 4.34 | 3.20 | 1.81 | 0.12 | 2.35 | 25.42 | |||||||||||||
1950 | 0.74 | 0.37 | 0.04 | 0.08 | 0.10 | 2.24 | 10.86 | 2.41 | 4.69 | 0.32 | 0.00 | 0.00 | 21.85 | |||||||||||||
1951 | 0.88 | 1.12 | 2.30 | 1.26 | 0.24 | a | 0.10 | 3.41 | 5.57 | 1.31 | 1.59 | 1.63 | 2.53 | 21.94 | ||||||||||||
1952 | 0.77 | 1.01 | 3.60 | 1.52 | 0.20 | 1.82 | 3.74 | 4.27 | 1.95 | 0.00 | 1.44 | 1.23 | 21.55 | |||||||||||||
1953 | 0.14 | 0.97 | 1.76 | 0.97 | a | 0.71 | 1.83 | 6.11 | 3.00 | 0.57 | 0.68 | 0.66 | 1.27 | 18.67 | ||||||||||||
1954 | 0.74 | 0.12 | 1.64 | 0.13 | 2.42 | 0.67 | 2.99 | 5.11 | 3.86 | 1.73 | 0.01 | 0.55 | 19.97 | |||||||||||||
1955 | 1.12 | 0.86 | 3.12 | 0.17 | 0.61 | 0.64 | 5.12 | 2.87 | 1.60 | 1.77 | 0.04 | 0.59 | 18.51 | |||||||||||||
1956 | 0.43 | 2.06 | 0.00 | 0.26 | 0.57 | 1.78 | 4.43 | 3.28 | 0.56 | 1.05 | 0.00 | 0.29 | 14.71 | |||||||||||||
1957 | 1.36 | 1.24 | 1.25 | 0.72 | 1.37 | 1.45 | 4.88 | 6.64 | 0.45 | 3.24 | 1.70 | 0.27 | 24.57 | |||||||||||||
1958 | 1.41 | 1.95 | 4.58 | 1.09 | 1.35 | 2.46 | 3.56 | 1.94 | 5.15 | 1.41 | 1.22 | 0.39 | 26.51 | |||||||||||||
1959 | 0.05 | 1.56 | 0.39 | 0.42 | 0.94 | 2.18 | 5.27 | 6.18 | 0.06 | 0.64 | 0.01 | 1.81 | 19.51 | |||||||||||||
1960 | 2.75 | 0.81 | 0.17 | 0.02 | 0.69 | 1.88 | 4.33 | 1.15 | 0.59 | 1.29 | 0.15 | 1.90 | 15.73 | |||||||||||||
1961 | 0.89 | 0.14 | 1.12 | 0.08 | 0.37 | 2.98 | 2.93 | 4.97 | 4.42 | 0.08 | 1.76 | 5.40 | 25.14 | |||||||||||||
1962 | 1.62 | 0.26 | 1.04 | 0.33 | 0.28 | 1.98 | 7.22 | 1.31 | 5.46 | 1.12 | 1.11 | 1.50 | 23.23 | |||||||||||||
1963 | 1.61 | 1.22 | 0.02 | 0.38 | 0.08 | 0.30 | 4.14 | 8.24 | 3.10 | 0.41 | 0.32 | 0.15 | 19.97 | |||||||||||||
1964 | 0.36 | 1.67 | 0.88 | 0.33 | 1.20 | 0.00 | 4.34 | 1.55 | 5.80 | 0.44 | 0.14 | 0.71 | 17.42 | |||||||||||||
1965 | 1.77 | 2.32 | 1.15 | 1.11 | 1.71 | 6.39 | 4.96 | 5.39 | 4.32 | 0.67 | 0.83 | 4.19 | 34.81 | |||||||||||||
1966 | 1.19 | 1.27 | 0.54 | 1.29 | 0.25 | 3.33 | 1.16 | 4.35 | 0.97 | 0.05 | 1.16 | 0.95 | 16.51 | |||||||||||||
1967 | 0.00 | 1.04 | 0.12 | 0.48 | 0.28 | 2.87 | 3.84 | 5.84 | 2.24 | 0.02 | 0.64 | 3.47 | 20.84 | |||||||||||||
1968 | 0.96 | 1.85 | 1.86 | 0.27 | 0.50 | 1.85 | 4.29 | 2.14 | 0.95 | 0.78 | 1.39 | 1.85 | 18.69 | |||||||||||||
1969 | 0.40 | 0.92 | 0.67 | 0.17 | 1.65 | 1.25 | 3.86 | 4.87 | 3.25 | 1.45 | 0.60 | 2.85 | 21.94 | |||||||||||||
1970 | 0.50 | 0.42 | 2.05 | 0.04 | 0.00 | 2.06 | 2.62 | 2.08 | 0.33 | 1.47 | 0.05 | 0.65 | 12.27 | |||||||||||||
1971 | 0.35 | 1.65 | 0.20 | 0.50 | 0.59 | 0.78 | 5.27 | 4.81 | 2.52 | 2.70 | 1.45 | 2.15 | 22.97 | |||||||||||||
1972 | 0.55 | 0.55 | 0.00 | 0.00 | 0.00 | 4.35 | 4.38 | 5.07 | 4.97 | 4.63 | 0.68 | 1.45 | 26.63 | |||||||||||||
1973 | 1.35 | 1.87 | 2.93 | 0.96 | 1.86 | 2.25 | 5.33 | 2.76 | 0.35 | 0.01 | 0.67 | 0.15 | 20.49 | |||||||||||||
1974 | 1.97 | g | 1.30 | 0.60 | 0.00 | 0.10 | 0.58 | 3.01 | 3.88 | 4.50 | 6.49 | 0.70 | 1.15 | 22.31 | a | |||||||||||
1975 | ----- | z | ----- | z | 4.46 | 0.80 | 0.80 | 0.70 | 4.42 | ----- | z | 2.78 | 0.30 | 1.55 | 0.46 | 16.27 | c | |||||||||
1976 | 1.25 | 1.50 | 0.61 | 1.40 | 1.30 | 2.75 | 3.05 | 3.55 | 1.80 | 1.45 | 2.05 | 0.15 | 20.86 | |||||||||||||
1977 | 2.20 | 1.51 | 0.55 | 2.97 | 0.40 | 1.25 | 2.87 | 5.55 | 1.50 | 1.40 | 0.00 | 0.35 | 20.55 | |||||||||||||
1978 | 1.55 | 0.72 | 1.15 | 0.20 | 2.30 | ----- | z | 3.60 | 4.60 | 3.40 | 1.59 | 2.48 | 8.88 | 30.47 | a | |||||||||||
1979 | 2.44 | 1.22 | 0.43 | 0.50 | 1.82 | 2.97 | 3.02 | 2.73 | 1.64 | ----- | z | 1.08 | 1.13 | 18.98 | a | |||||||||||
1980 | 2.25 | 0.65 | 0.56 | 0.51 | 1.60 | 0.38 | 2.35 | 5.38 | 4.50 | 0.25 | 0.76 | 0.46 | 19.65 | |||||||||||||
1981 | 1.25 | 0.97 | ----- | z | ----- | z | 0.90 | 2.15 | 4.02 | 4.64 | 2.76 | 1.41 | 1.27 | 0.00 | 19.37 | b | ||||||||||
1982 | 3.44 | a | 1.06 | 0.31 | 0.67 | 0.40 | 0.62 | 5.22 | 2.75 | 5.54 | 0.30 | 0.97 | 2.26 | 23.54 | ||||||||||||
1983 | 1.28 | 1.28 | 1.17 | 2.01 | 0.44 | 0.33 | 2.33 | 1.60 | 2.50 | 2.79 | 1.01 | 1.20 | 17.94 | |||||||||||||
1984 | 0.33 | 0.00 | 0.00 | 0.12 | 2.87 | 1.66 | 2.52 | 11.36 | 2.45 | 4.23 | 0.09 | 4.42 | 30.05 | |||||||||||||
1985 | 2.07 | 1.87 | 2.07 | 1.08 | 0.47 | 2.55 | 1.73 | 2.32 | 2.49 | 6.98 | 0.50 | 0.13 | 24.26 | |||||||||||||
1986 | 0.36 | 2.09 | 1.35 | d | 0.10 | 1.68 | 5.12 | 2.99 | 4.55 | 2.72 | 3.93 | 2.39 | 2.26 | 29.54 | ||||||||||||
1987 | 0.91 | 2.53 | a | 0.70 | 0.74 | 1.84 | 1.11 | t | ----- | z | 5.41 | 1.19 | 0.24 | 1.25 | 2.58 | 17.39 | b | |||||||||
1988 | 1.75 | 1.54 | 0.10 | 1.44 | 0.52 | 1.69 | 7.25 | 7.55 | 3.16 | 0.19 | 0.73 | 2.82 | 28.74 | |||||||||||||
1989 | 0.41 | 1.72 | 1.07 | 0.12 | 1.16 | 0.88 | 4.06 | 8.97 | 1.61 | 0.14 | 0.01 | 0.61 | 20.76 | |||||||||||||
1990 | 0.70 | 1.64 | 1.13 | 1.24 | 0.71 | 0.22 | 8.21 | 2.70 | 6.42 | 0.30 | 1.12 | 3.14 | 27.53 | |||||||||||||
1991 | 0.77 | 1.57 | 1.73 | 0.07 | 1.57 | 0.44 | 5.91 | 3.93 | 2.48 | 0.96 | 1.79 | 3.03 | 24.25 | |||||||||||||
1992 | 1.92 | 0.95 | 1.00 | 1.28 | 5.09 | 1.53 | 2.86 | 3.43 | 1.10 | 1.11 | 0.44 | 2.49 | 23.20 | |||||||||||||
1993 | 2.76 | 1.46 | 0.48 | 0.74 | ----- | z | ----- | z | ----- | z | ----- | z | 2.00 | 2.04 | 1.01 | 1.21 | 11.70 | d | ||||||||
1994 | 0.31 | a | 0.99 | 1.69 | 0.22 | 2.55 | 0.73 | a | 2.89 | 3.97 | 2.66 | 0.54 | 2.94 | 2.61 | 22.10 | |||||||||||
1995 | 2.07 | 1.10 | 1.04 | 0.44 | 0.05 | 1.78 | 2.88 | 4.04 | 5.07 | 0.00 | 0.20 | 1.33 | 20.00 | |||||||||||||
1996 | 1.73 | 0.52 | 0.15 | 0.20 | 0.04 | 5.16 | 5.97 | 4.48 | a | 3.14 | 1.59 | 0.56 | 0.01 | 23.55 | ||||||||||||
1997 | 2.08 | 1.14 | 0.93 | 1.58 | 3.06 | 2.29 | 3.72 | 4.16 | 2.40 | 0.79 | 0.50 | 3.22 | 25.87 | |||||||||||||
1998 | 0.19 | 0.98 | 2.21 | a | 0.06 | 0.00 | a | 0.32 | ----- | z | 3.66 | 1.17 | 4.34 | b | ----- | z | 1.24 | 14.17 | b | |||||||
1999 | 0.48 | c | 0.00 | ----- | z | 0.88 | c | 0.20 | ----- | z | 5.23 | a | 4.39 | 2.77 | 1.00 | b | 0.00 | 1.08 | b | 16.03 | b | |||||
2000 | 0.00 | 0.10 | 0.30 | 0.65 | 0.15 | 6.54 | 2.25 | b | 3.98 | b | 0.25 | 2.16 | 0.72 | 1.11 | 18.21 | |||||||||||
2001 | 0.69 | 1.49 | 0.67 | 1.00 | 0.75 | c | 2.17 | b | 2.32 | a | 3.62 | a | 4.26 | b | 0.32 | 1.44 | a | 1.69 | a | 20.42 | ||||||
2002 | 0.75 | 0.23 | 0.44 | 0.04 | 0.19 | 1.16 | 4.24 | 3.61 | 2.62 | 1.34 | 0.71 | 2.57 | 17.90 | |||||||||||||
2003 | 0.19 | a | 0.85 | 0.95 | 0.54 | a | 0.24 | 1.54 | 0.54 | b | 4.72 | 0.77 | 1.83 | a | 1.02 | 0.34 | a | 13.53 | ||||||||
2004 | 0.73 | a | 1.13 | 0.34 | 3.02 | 0.42 | a | 1.72 | 2.33 | a | 3.47 | b | 1.38 | 2.29 | 2.15 | a | 1.84 | 20.82 | ||||||||
2005 | 1.75 | 3.47 | 1.08 | 1.20 | c | 0.93 | j | 0.07 | w | 0.86 | 5.28 | b | 2.60 | 2.85 | 0.06 | 0.20 | 19.35 | b | ||||||||
2006 | 0.21 | 0.26 | 0.66 | a | 0.71 | 0.54 | 2.30 | 6.41 | 9.74 | 6.15 | a | 3.92 | 0.49 | 1.02 | 32.41 | |||||||||||
2007 | 2.72 | 1.77 | 1.17 | 0.80 | 3.72 | a | 1.46 | 4.80 | a | 2.10 | 2.27 | 0.08 | 0.88 | 2.38 | 24.15 | |||||||||||
2008 | 1.16 | 0.10 | 0.62 | 0.02 | 1.25 | 2.31 | 10.57 | 4.24 | 2.59 | a | 0.91 | 0.36 | 0.97 | 25.10 | ||||||||||||
2009 | 0.12 | 0.21 | 0.63 | 0.18 | 2.20 | 2.55 | b | 5.00 | a | 2.29 | 2.95 | b | 1.27 | 0.42 | a | 1.67 | 19.49 | |||||||||
2010 | 2.50 | 1.13 | 1.44 | a | 1.99 | 0.24 | 1.87 | 5.15 | 3.62 | 2.42 | 1.92 | 0.00 | 0.81 | 23.09 | ||||||||||||
2011 | 0.01 | m | 0.86 | g | 0.00 | q | 0.30 | v | 0.00 | v | 0.21 | k | 1.78 | j | 6.05 | i | 0.90 | m | 1.38 | 0.13 | 0.56 | 2.07 | i | |||
2012 | 0.24 | 0.10 | a | 0.08 | b | 0.04 | 0.70 | 0.28 | 2.12 | a | 1.64 | 1.36 | a | 0.00 | 0.06 | 0.16 | 6.78 | |||||||||
2013 | 0.01 | 0.01 | b | 0.06 | 0.00 | 0.00 | 0.39 | 2.63 | 2.08 | 3.67 | 0.32 | 0.11 | 0.03 | e | 9.31 | |||||||||||
2014 | 0.00 | 0.07 | 0.04 | 0.08 | 0.10 | 0.08 | 1.31 | b | 0.53 | 1.78 | 0.40 | b | 0.11 | 0.03 | 4.53 | |||||||||||
2015 | 0.12 | a | 0.03 | e | 0.02 | e | 0.01 | a | 0.08 | 0.10 | 0.01 | c | 0.72 | 0.89 | 0.95 | 0.01 | i | 0.09 | b | 3.02 | a | |||||
2016 | 0.04 | c | 0.00 | a | 0.00 | a | 0.03 | 0.00 | 0.00 | c | 0.00 | a | 1.61 | 0.77 | 0.09 | 0.77 | 0.25 | 3.56 | ||||||||
2017 | 0.00 | d | 0.00 | 0.00 | 0.00 | 0.00 | 2.12 | 0.24 | d | 0.03 | a | 0.55 | a | 0.14 | a | 0.00 | ----- | z | 3.08 | a | ||||||
2018 | 0.00 | i | ----- | z | 0.28 | 0.06 | 0.12 | 0.36 | 0.02 | c | 1.71 | 3.19 | a | 1.75 | b | 0.00 | 0.13 | 7.62 | b | |||||||
2019 | 0.03 | a | 0.06 | n | 0.27 | j | 0.96 | 0.27 | 0.26 | f | ----- | z | 2.79 | c | 1.38 | a | 1.05 | 0.99 | 0.00 | c | 7.47 | d | ||||
2020 | 0.18 | 0.09 | b | 0.62 | a | 0.09 | 0.26 | 0.90 | 1.42 | 1.66 | 1.49 | 0.65 | 0.15 | 0.07 | 7.58 | |||||||||||
2021 | 0.03 | b | 0.07 | a | 0.27 | 0.76 | 1.28 | 4.17 | 2.05 | 3.24 | 0.63 | 0.00 | 0.13 | 0.27 | 12.90 | |||||||||||
2022 | 0.21 | 0.10 | a | 0.44 | 0.00 | 0.03 | 3.33 | 2.74 | 4.89 | 1.32 | c | 3.63 | 0.17 | a | 0.28 | a | 17.14 | |||||||||
2023 | 0.15 | 0.05 | a | 0.05 | a | 0.00 | 0.73 | 0.57 | 0.96 | 2.95 | 1.69 | a | 0.10 | 0.42 | 0.50 | 8.17 | ||||||||||
2024 | 0.10 | 0.30 | 0.32 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.40 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.00 | 0.99 | 0.96 | 0.66 | 0.89 | 1.82 | 3.75 | 3.95 | 2.40 | 1.37 | 0.73 | 1.43 | 20.52 | |||||||||||||
S.D. | 0.85 | 0.77 | 0.97 | 0.72 | 0.96 | 1.43 | 2.13 | 2.09 | 1.55 | 1.42 | 0.69 | 1.45 | 6.32 | |||||||||||||
SKEW | 0.74 | 0.56 | 1.75 | 1.78 | 1.78 | 1.18 | 0.80 | 0.95 | 0.70 | 1.82 | 0.94 | 2.14 | -0.65 | |||||||||||||
MAX | 3.44 | 3.47 | 4.58 | 3.49 | 5.09 | 6.54 | 10.86 | 11.36 | 6.42 | 6.98 | 2.94 | 8.88 | 34.81 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.06 | 0.00 | 0.00 | 0.00 | 3.56 | |||||||||||||
YRS | 78 | 78 | 77 | 79 | 78 | 75 | 75 | 78 | 81 | 81 | 79 | 80 | 63 |