YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | 2.55 | 3.97 | 1.23 | 2.74 | 1.71 | 0.29 | 1.43 | 0.19 | 14.11 | d | ||||||||
1936 | 1.00 | 0.23 | 0.10 | 0.03 | 2.96 | 1.74 | 1.30 | 0.22 | 3.82 | 0.20 | 1.20 | 0.10 | 12.90 | |||||||||||||
1937 | 0.06 | 0.10 | 1.77 | 2.10 | 6.40 | 1.06 | 0.14 | 1.57 | 5.00 | 1.75 | 0.00 | 0.60 | 20.55 | |||||||||||||
1938 | 0.60 | 3.35 | 0.45 | 0.25 | 0.88 | 4.62 | 3.64 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 13.79 | e | |||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.77 | 0.24 | 1.01 | i | |||
1948 | 0.54 | 1.28 | 0.00 | 1.21 | 1.32 | 2.43 | 2.77 | 1.13 | g | 2.00 | 0.36 | 0.00 | 0.45 | 12.36 | a | |||||||||||
1949 | 2.56 | 0.15 | 0.00 | 3.33 | 3.60 | 2.32 | 2.24 | 3.14 | 3.94 | 0.47 | a | 0.00 | 0.05 | 21.80 | ||||||||||||
1950 | 0.17 | 0.00 | 0.00 | 0.87 | 0.46 | 0.73 | 8.04 | 1.79 | 8.29 | 1.05 | 0.00 | 0.02 | 21.42 | |||||||||||||
1951 | 0.39 | 0.93 | 0.17 | 0.00 | 4.79 | 0.05 | 0.56 | 3.62 | 0.89 | 1.67 | 0.18 | 0.10 | 13.35 | |||||||||||||
1952 | 0.44 | 0.12 | 0.02 | 1.08 | 0.12 | 1.09 | 2.23 | 1.50 | 1.03 | 0.00 | 0.69 | 0.02 | 8.34 | |||||||||||||
1953 | 0.64 | 0.14 | 0.72 | 0.96 | 1.07 | 1.18 | 2.25 | 1.87 | 0.03 | 1.88 | 0.20 | 0.16 | 11.10 | |||||||||||||
1954 | 0.02 | 0.00 | 0.00 | 1.32 | 2.94 | 0.40 | 0.00 | 2.84 | 0.04 | 2.91 | 0.00 | 0.24 | 10.71 | |||||||||||||
1955 | 0.69 | 0.00 | 0.03 | 0.09 | 3.19 | 0.26 | 2.18 | 0.50 | 1.85 | 3.86 | 0.40 | 0.00 | 13.05 | |||||||||||||
1956 | 0.07 | 0.71 | 0.00 | 0.00 | 2.12 | 1.83 | 1.84 | 0.85 | 0.00 | 0.64 | 0.00 | 0.03 | 8.09 | |||||||||||||
1957 | 0.00 | 0.57 | 0.92 | 1.61 | 1.44 | 4.87 | 0.61 | 1.90 | 1.12 | 2.57 | 1.06 | 0.00 | 16.67 | |||||||||||||
1958 | 1.27 | 0.26 | 2.41 | 1.44 | 2.43 | 1.36 | 2.11 | 1.99 | 4.36 | 1.53 | 0.51 | 0.02 | 19.69 | |||||||||||||
1959 | 0.00 | 0.07 | 0.03 | 0.65 | 4.62 | 3.13 | 4.96 | 1.66 | 2.10 | 2.24 | 0.00 | 1.28 | 20.74 | |||||||||||||
1960 | 0.79 | 0.36 | 0.37 | 0.30 | 0.98 | 4.66 | 9.87 | 1.29 | 0.30 | 3.68 | 0.00 | 1.06 | 23.66 | |||||||||||||
1961 | 0.27 | 1.04 | 1.30 | 0.21 | 0.40 | 3.25 | 2.09 | 2.52 | 0.35 | 0.48 | 2.07 | 0.28 | 14.26 | |||||||||||||
1962 | 0.40 | 0.28 | 0.08 | 0.15 | 0.59 | 1.36 | 6.10 | 1.11 | 4.82 | 3.45 | 0.19 | 0.27 | 18.80 | |||||||||||||
1963 | 0.05 | 0.73 | 0.00 | 1.56 | 2.81 | 2.94 | 1.48 | 1.46 | 2.88 | 0.48 | 1.13 | 0.10 | 15.62 | |||||||||||||
1964 | 0.07 | 0.57 | 0.04 | 0.00 | 0.47 | 2.00 | 0.18 | 1.40 | 2.66 | 0.27 | 0.78 | 0.63 | 9.07 | |||||||||||||
1965 | 0.07 | 0.46 | 0.08 | 0.51 | 0.63 | 6.16 | 0.57 | 3.45 | 2.25 | 0.42 | 0.09 | 0.43 | 15.12 | |||||||||||||
1966 | 0.34 | 0.08 | 0.00 | 3.63 | 0.79 | 4.07 | 0.02 | 10.89 | 2.97 | 0.09 | 0.12 | 0.08 | 23.08 | |||||||||||||
1967 | 0.00 | 0.00 | 0.18 | 0.19 | 0.68 | 4.98 | 4.79 | 0.55 | 2.24 | 0.88 | 0.11 | ----- | z | 14.60 | a | |||||||||||
1968 | ----- | z | ----- | z | ----- | z | 0.29 | 3.76 | 1.26 | ----- | z | 0.92 | t | 1.65 | 0.56 | 1.87 | 0.16 | 9.55 | e | |||||||
1969 | 0.00 | 0.84 | 1.96 | 1.81 | 4.75 | 4.16 | 1.30 | 2.57 | 4.33 | 5.20 | 0.55 | 0.97 | 28.44 | |||||||||||||
1970 | 0.00 | 0.29 | 1.23 | 0.45 | 1.20 | 2.01 | 0.68 | 0.77 | 7.35 | 0.93 | 0.00 | 0.00 | 14.91 | |||||||||||||
1971 | 0.00 | 0.40 | 0.00 | 0.79 | ----- | z | 1.47 | 1.39 | 6.17 | 5.30 | 1.70 | 0.92 | 0.50 | 18.64 | a | |||||||||||
1972 | 0.02 | 0.05 | 0.08 | 0.03 | 2.67 | 2.95 | 3.53 | 6.62 | 5.21 | 2.29 | 0.35 | 0.38 | 24.18 | |||||||||||||
1973 | 1.21 | 0.68 | 1.87 | 1.55 | 0.65 | 0.81 | 2.92 | 0.36 | 0.90 | 1.10 | 0.05 | 0.00 | 12.10 | |||||||||||||
1974 | 0.40 | 0.00 | 0.40 | 0.00 | 0.67 | 0.58 | 0.11 | ----- | z | ----- | z | 3.47 | 0.10 | 1.36 | 7.09 | b | ||||||||||
1975 | 0.41 | 1.70 | 0.14 | 0.63 | 1.08 | 3.72 | 2.58 | 0.22 | 3.95 | 0.04 | 0.36 | 0.10 | 14.93 | |||||||||||||
1976 | 0.00 | 0.32 | 0.05 | 0.97 | 0.94 | 0.74 | 2.62 | 0.52 | 4.46 | 1.13 | 0.62 | 0.00 | 12.37 | |||||||||||||
1977 | 0.11 | 0.52 | 0.56 | 2.21 | 2.03 | 1.70 | 1.51 | 6.53 | ----- | z | ----- | z | 0.11 | 0.04 | 15.32 | b | ||||||||||
1978 | 0.25 | 0.77 | 0.01 | 0.61 | 1.55 | 3.40 | 0.00 | 1.37 | 2.89 | 1.12 | 1.97 | 0.15 | 14.09 | |||||||||||||
1979 | 0.30 | 0.76 | 0.88 | 3.07 | 1.06 | 3.27 | 2.08 | 6.60 | 0.00 | 0.00 | 0.15 | 0.00 | a | 18.17 | ||||||||||||
1980 | 1.00 | 0.94 | 0.07 | 0.77 | 2.09 | 2.04 | 1.67 | 3.93 | 5.41 | 0.50 | 1.47 | ----- | z | 19.89 | a | |||||||||||
1981 | 0.18 | 0.11 | 0.41 | 1.26 | 2.22 | 1.41 | 6.23 | 3.64 | 3.49 | 5.28 | 0.73 | 0.20 | 25.16 | |||||||||||||
1982 | 0.41 | 0.47 | 0.26 | 0.15 | 1.42 | 1.71 | 5.07 | 0.33 | 0.51 | 0.18 | 1.12 | 2.03 | 13.66 | |||||||||||||
1983 | 1.81 | 0.98 | 0.07 | 0.98 | 3.35 | 1.72 | 0.78 | 0.50 | 0.45 | 3.31 | 1.56 | 0.41 | 15.92 | |||||||||||||
1984 | 0.18 | 0.07 | 0.29 | 0.06 | 2.00 | 3.29 | 1.29 | 4.30 | 0.63 | 2.58 | 1.46 | 1.97 | 18.12 | |||||||||||||
1985 | 0.81 | 0.34 | 1.68 | 0.45 | 3.83 | 7.38 | 3.09 | 0.72 | 4.06 | 4.58 | 0.45 | 0.49 | 27.88 | |||||||||||||
1986 | 0.00 | 1.35 | 0.17 | c | 0.34 | 1.82 | 4.49 | 1.51 | 3.48 | 5.31 | 4.46 | 2.22 | 1.59 | 26.74 | ||||||||||||
1987 | 0.97 | 1.31 | 0.24 | 0.12 | 3.77 | 1.92 | 1.42 | 6.20 | 2.78 | a | 0.90 | 0.28 | 1.69 | 21.60 | ||||||||||||
1988 | 0.16 | 0.26 | 0.04 | 2.65 | 3.98 | 2.27 | a | 5.82 | 2.69 | 2.59 | 0.10 | 0.09 | 0.51 | 21.16 | ||||||||||||
1989 | 0.17 | 1.00 | 0.47 | 0.02 | 0.50 | 4.53 | 2.31 | 4.36 | 2.49 | 0.00 | 0.00 | 0.39 | 16.24 | |||||||||||||
1990 | 0.75 | 1.20 | 1.78 | 1.09 | 0.69 | 0.11 | 4.08 | 2.78 | 1.84 | 3.26 | 1.11 | 0.22 | 18.91 | |||||||||||||
1991 | 0.76 | 0.12 | ----- | z | 0.00 | 1.13 | 1.94 | 3.84 | 0.20 | n | 5.59 | 0.55 | 1.51 | 2.83 | 18.27 | b | ||||||||||
1992 | 1.17 | 1.02 | 0.43 | 1.54 | 6.00 | 7.36 | 1.75 | 2.41 | 1.85 | 0.00 | 1.13 | 0.15 | a | 24.81 | ||||||||||||
1993 | 1.95 | a | 0.00 | 1.20 | 0.60 | 1.36 | 0.57 | 4.18 | 1.35 | 1.43 | 0.71 | 0.46 | 0.00 | 13.81 | ||||||||||||
1994 | 0.00 | 0.00 | 0.38 | 0.76 | 2.57 | 0.50 | 2.59 | 0.60 | 1.16 | 0.26 | 0.94 | 0.05 | 9.81 | |||||||||||||
1995 | 0.39 | 0.11 | 0.55 | 0.61 | 1.86 | 0.73 | 1.97 | 1.77 | 5.02 | 0.44 | 0.10 | 0.35 | 13.90 | |||||||||||||
1996 | 0.00 | a | 0.00 | b | 0.10 | 0.00 | 1.12 | 4.54 | 5.69 | 4.52 | 1.37 | 0.77 | 0.56 | 0.00 | 18.67 | |||||||||||
1997 | 0.07 | b | 1.06 | a | 0.02 | 3.95 | 1.40 | 1.60 | 3.36 | 2.37 | ----- | z | 1.28 | y | ----- | z | 1.20 | d | 15.03 | c | ||||||
1998 | 0.00 | 1.94 | 1.52 | g | 0.04 | 0.23 | 0.13 | 0.31 | 3.15 | 0.66 | 3.18 | 0.60 | 0.37 | 10.61 | a | |||||||||||
1999 | 1.44 | 0.00 | 3.47 | 0.48 | 4.70 | 4.22 | 3.25 | a | 2.18 | 2.14 | 0.63 | a | 0.00 | 0.97 | b | 23.48 | ||||||||||
2000 | 0.00 | 0.00 | 1.54 | 1.01 | 0.04 | 4.49 | 1.40 | 0.67 | 0.00 | 3.52 | 2.56 | 0.00 | b | 15.23 | ||||||||||||
2001 | 1.24 | 0.52 | 3.16 | 0.00 | 3.84 | 0.68 | 0.15 | 2.72 | 2.28 | 0.41 | 1.41 | 0.46 | 16.87 | |||||||||||||
2002 | 0.82 | 0.54 | 3.28 | 0.50 | 0.00 | 0.60 | 0.94 | 2.75 | 1.18 | 3.27 | 0.40 | 1.34 | 15.62 | |||||||||||||
2003 | 0.00 | 0.38 | 0.27 | 0.00 | 0.98 | 4.99 | 0.06 | 0.17 | 0.07 | 0.48 | 0.42 | 0.00 | 7.82 | |||||||||||||
2004 | 0.59 | 3.05 | 1.47 | 3.38 | 1.35 | 2.00 | 1.72 | 5.48 | 6.96 | 3.75 | 4.63 | 0.58 | 34.96 | |||||||||||||
2005 | 1.33 | 0.97 | 0.75 | 0.34 | 3.65 | u | 0.49 | 2.49 | 3.27 | 0.10 | 0.92 | 0.03 | g | 0.04 | 10.70 | b | ||||||||||
2006 | 0.00 | 0.16 | 1.55 | 1.66 | 0.88 | 0.80 | 1.34 | 3.22 | 5.86 | 1.92 | 2.00 | 2.60 | f | 19.39 | a | |||||||||||
2007 | 2.66 | 0.35 | 4.56 | 1.89 | 5.64 | 2.65 | 0.72 | 2.80 | 4.71 | 0.00 | 0.35 | 1.29 | 27.62 | |||||||||||||
2008 | 0.00 | 0.48 | 0.61 | 0.11 | 2.77 | 3.52 | 1.89 | 4.32 | 2.60 | 3.38 | 0.03 | 0.07 | 19.78 | |||||||||||||
2009 | 0.00 | 0.42 | 0.52 | 0.93 | 0.66 | 3.22 | 6.03 | 0.65 | 0.63 | 2.59 | 0.32 | 1.80 | 17.77 | |||||||||||||
2010 | 1.93 | 2.17 | 1.71 | 1.65 | 0.88 | 0.91 | 3.61 | 1.92 | 0.79 | 0.99 | 0.57 | 0.00 | 17.13 | |||||||||||||
2011 | 0.00 | 0.22 | 0.20 | 0.00 | 0.00 | 0.65 | 2.14 | 0.07 | 1.43 | 0.97 | 0.12 | 1.67 | 7.47 | |||||||||||||
2012 | 0.00 | 0.40 | 0.58 | 0.23 | 2.62 | 2.50 | 0.63 | 3.71 | 1.49 | 0.55 | 0.00 | 0.59 | 13.30 | |||||||||||||
2013 | 0.80 | 0.86 | 0.05 | 0.00 | 0.42 | 5.18 | 4.37 | 1.82 | 0.79 | 0.40 | 0.67 | 0.51 | 15.87 | |||||||||||||
2014 | 0.00 | 0.20 | 0.30 | 0.20 | 4.98 | 2.23 | 2.19 | 1.11 | 4.67 | 0.40 | 1.81 | 0.20 | 18.29 | |||||||||||||
2015 | 1.52 | 0.77 | 0.46 | 1.84 | 4.22 | 2.08 | 4.96 | 2.91 | 1.04 | 5.29 | 0.91 | 1.99 | 27.99 | |||||||||||||
2016 | 0.33 | 0.28 | 0.00 | 1.91 | 2.05 | 1.02 | 0.90 | 6.07 | 3.73 | 1.06 | 1.76 | 0.50 | 19.61 | |||||||||||||
2017 | 1.82 | 0.39 | 0.57 | 1.28 | 0.42 | 3.67 | 4.01 | 4.11 | 3.13 | 0.97 | 0.06 | 0.00 | 20.43 | |||||||||||||
2018 | 0.00 | 0.34 | 0.19 | 0.21 | 0.54 | 0.97 | 2.80 | 4.56 | 4.29 | 3.44 | 0.22 | 1.00 | 18.56 | |||||||||||||
2019 | 0.12 | 0.23 | 0.98 | 0.91 | 3.54 | 1.95 | 2.33 | 1.20 | 2.76 | 1.86 | 1.11 | 0.27 | 17.26 | |||||||||||||
2020 | 0.21 | 0.85 | 2.43 | 0.10 | 0.17 | 1.90 | 1.08 | 2.16 | 0.14 | 0.72 | 0.22 | 0.00 | 9.98 | |||||||||||||
2021 | 0.80 | 0.55 | 0.05 | 0.32 | 4.81 | 4.71 | 1.80 | 2.72 | 0.86 | 0.95 | 0.00 | 0.00 | 17.57 | |||||||||||||
2022 | 0.48 | 0.13 | 0.02 | 0.00 | 2.40 | 0.12 | 0.71 | 3.84 | 0.77 | 1.51 | 0.86 | 0.21 | 11.05 | |||||||||||||
2023 | 0.39 | 0.14 | 0.01 | 0.04 | 3.65 | 2.34 | 0.92 | 1.12 | 2.81 | 1.61 | 0.10 | 0.87 | 14.00 | |||||||||||||
2024 | 0.73 | 0.53 | 0.31 | 1.02 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.57 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.52 | 0.57 | 0.69 | 0.86 | 2.07 | 2.41 | 2.40 | 2.60 | 2.53 | 1.56 | 0.70 | 0.50 | 17.44 | |||||||||||||
S.D. | 0.62 | 0.63 | 0.94 | 0.95 | 1.61 | 1.72 | 1.94 | 1.97 | 1.98 | 1.46 | 0.80 | 0.63 | 5.73 | |||||||||||||
SKEW | 1.50 | 2.23 | 1.96 | 1.41 | 0.77 | 0.79 | 1.33 | 1.37 | 0.71 | 0.97 | 2.00 | 1.57 | 0.53 | |||||||||||||
MAX | 2.66 | 3.35 | 4.56 | 3.95 | 6.40 | 7.38 | 9.87 | 10.89 | 8.29 | 5.29 | 4.63 | 2.83 | 34.96 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 7.47 | |||||||||||||
YRS | 79 | 79 | 77 | 79 | 78 | 80 | 79 | 75 | 76 | 78 | 78 | 77 | 66 |