YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | 0.20 | 0.00 | 0.00 | 0.23 | 3.50 | 0.22 | 0.12 | 0.57 | 4.84 | d | ||||||||
1940 | ----- | z | 1.33 | 0.46 | 0.02 | 0.05 | 0.00 | 0.00 | 0.21 | 0.99 | 0.12 | 0.46 | 1.86 | 5.50 | a | |||||||||||
1941 | 0.84 | 1.70 | 1.67 | 2.02 | 0.18 | 0.09 | 0.32 | 1.92 | 0.22 | 2.12 | 0.56 | 0.73 | 12.37 | |||||||||||||
1942 | 0.02 | ----- | z | 0.23 | 0.14 | 0.00 | 0.00 | 0.16 | 0.22 | 0.00 | 0.31 | 0.05 | 0.05 | 1.18 | a | |||||||||||
1943 | 1.29 | 0.38 | 1.39 | ----- | z | 0.00 | 0.00 | 0.00 | 0.14 | 0.56 | 0.18 | 0.00 | 1.94 | 5.88 | a | |||||||||||
1944 | 1.11 | 1.68 | 0.15 | 0.13 | 0.28 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.23 | 0.05 | 3.63 | |||||||||||||
1945 | 0.16 | 0.45 | x | ----- | z | 0.00 | 0.10 | 0.00 | 0.56 | 1.13 | 0.00 | 0.24 | 0.00 | 0.63 | 2.82 | b | ||||||||||
1946 | 0.11 | 0.03 | 0.00 | 0.29 | 0.14 | 0.00 | 0.21 | 0.74 | 0.51 | 1.73 | 1.19 | 0.29 | 5.24 | |||||||||||||
1947 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 | 0.00 | 0.00 | 0.07 | 0.00 | 0.50 | 0.09 | 2.13 | 3.14 | |||||||||||||
1948 | 0.00 | 0.69 | 0.05 | 0.09 | 0.00 | ----- | z | 0.00 | 0.04 | 0.03 | 0.09 | 0.00 | 1.08 | 2.07 | a | |||||||||||
1949 | 2.10 | 0.49 | 0.09 | 0.10 | 0.02 | 0.10 | 0.39 | 0.51 | 0.23 | 0.02 | 0.14 | 0.16 | 4.35 | |||||||||||||
1950 | 0.01 | 0.11 | 0.16 | 0.00 | 0.00 | 0.00 | 0.69 | 0.04 | 0.09 | 0.00 | 0.01 | 0.00 | 1.11 | |||||||||||||
1951 | 0.91 | 0.01 | 0.36 | 0.72 | 0.53 | 0.00 | 0.19 | 0.48 | 1.28 | 0.26 | 0.15 | 0.51 | 5.40 | |||||||||||||
1952 | 0.68 | 0.00 | 1.41 | 0.49 | 0.00 | 0.01 | 0.15 | 0.00 | 0.57 | 0.00 | 1.35 | 1.23 | 5.89 | |||||||||||||
1953 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.02 | 0.14 | 0.00 | 0.00 | 0.40 | 0.00 | 0.10 | 0.71 | |||||||||||||
1954 | 1.20 | 0.16 | 1.50 | 0.00 | 0.08 | 0.34 | 0.11 | 0.01 | 0.48 | 0.08 | 0.32 | 0.46 | 4.74 | |||||||||||||
1955 | 1.03 | 0.52 | 0.00 | 0.09 | 0.15 | 0.11 | 0.19 | 0.86 | 0.00 | 0.06 | 0.10 | 0.11 | 3.22 | |||||||||||||
1956 | 0.03 | 0.26 | 0.00 | 0.03 | 0.01 | 0.00 | 0.52 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.87 | |||||||||||||
1957 | 0.76 | 0.23 | 0.10 | 0.17 | 0.21 | 0.18 | 0.07 | 1.43 | 0.00 | 1.85 | 1.52 | 0.21 | 6.73 | |||||||||||||
1958 | 0.58 | 1.23 | 0.52 | 0.81 | 1.19 | 0.00 | 0.00 | 0.03 | 0.53 | 0.47 | 0.67 | 0.00 | 6.03 | |||||||||||||
1959 | 0.35 | 0.96 | 0.00 | 0.00 | 0.00 | 0.12 | 0.44 | 0.49 | 0.13 | 0.64 | 0.64 | 1.62 | 5.39 | |||||||||||||
1960 | 0.68 | 0.43 | 0.18 | 0.32 | 0.00 | 0.00 | 0.11 | 0.04 | 0.88 | 1.40 | 1.52 | 0.15 | 5.71 | |||||||||||||
1961 | 0.23 | 0.00 | 0.42 | 0.08 | 0.12 | 0.00 | 0.25 | 0.30 | 0.00 | 0.11 | 0.31 | 0.43 | 2.25 | |||||||||||||
1962 | 0.20 | 0.33 | 0.12 | 0.01 | 0.00 | 0.10 | 0.00 | 0.00 | 0.28 | 0.14 | 0.00 | 0.12 | 1.30 | |||||||||||||
1963 | 0.19 | 0.29 | 0.50 | 0.30 | 0.00 | 0.00 | 0.00 | 0.21 | 1.10 | 0.14 | 0.59 | 0.00 | 3.32 | |||||||||||||
1964 | 0.00 | ----- | z | 0.21 | 0.01 | 0.27 | 0.05 | 0.52 | 0.01 | 0.00 | 0.01 | 0.55 | 0.08 | 1.71 | a | |||||||||||
1965 | 0.02 | 0.32 | 0.44 | 2.19 | a | 0.43 | 0.00 | 0.03 | 0.64 | 0.00 | 0.02 | 1.93 | 1.64 | 7.66 | ||||||||||||
1966 | 0.02 | 0.13 | 0.06 | 0.08 | 0.15 | 0.00 | 0.00 | 0.00 | 1.44 | 0.23 | 0.07 | 0.33 | 2.51 | |||||||||||||
1967 | 0.64 | 0.00 | 0.00 | 0.07 | 0.13 | 0.35 | 0.13 | 0.06 | 1.01 | 0.00 | 1.21 | 0.66 | 4.26 | |||||||||||||
1968 | 0.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | k | |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1988 | ----- | z | ----- | z | 0.00 | c | 0.84 | 0.07 | 0.03 | 0.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.04 | g | ||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1992 | ----- | z | 1.66 | 4.68 | 0.06 | 0.40 | 0.00 | 0.04 | 0.32 | 0.00 | ----- | z | 0.01 | 1.63 | w | 7.17 | c | |||||||||
1993 | 2.19 | 3.75 | v | 0.77 | y | 0.09 | 0.41 | 0.70 | 0.00 | 0.20 | 0.00 | ----- | z | 0.73 | x | ----- | z | 3.59 | e | |||||||
1994 | 0.03 | 0.48 | v | ----- | z | 0.18 | 0.00 | 0.00 | 0.26 | 1.04 | ----- | z | 0.00 | 0.40 | 1.31 | 3.22 | c | |||||||||
1995 | 2.72 | r | 0.47 | x | 0.59 | w | 0.13 | 0.14 | a | 0.15 | 0.02 | 0.00 | 0.00 | 0.00 | 0.04 | 0.04 | 0.52 | c | ||||||||
1996 | 0.18 | ----- | z | 0.00 | 0.00 | ----- | z | 0.00 | 2.29 | w | ----- | z | 0.00 | 0.43 | ----- | z | ----- | z | 0.61 | f | ||||||
1997 | 0.74 | l | 0.19 | 0.00 | 0.14 | 0.00 | 0.00 | 0.03 | 0.13 | 1.18 | 0.00 | 0.21 | y | 0.15 | 1.82 | b | ||||||||||
1998 | 0.18 | 2.67 | 0.63 | 0.80 | 0.19 | 0.00 | 2.09 | 0.03 | 1.42 | 0.08 | 0.07 | 0.00 | 8.16 | |||||||||||||
1999 | 0.07 | 0.11 | 0.00 | 1.42 | 0.00 | 0.22 | 0.53 | 0.02 | 0.26 | 0.00 | 0.00 | 0.00 | 2.63 | |||||||||||||
2000 | 0.03 | 1.32 | 0.72 | 0.05 | a | 0.00 | 0.00 | 0.00 | 0.24 | 0.00 | 0.47 | k | 0.15 | 0.00 | 2.51 | a | ||||||||||
2001 | 1.10 | 1.05 | 0.72 | 0.29 | 0.03 | 0.00 | 0.00 | 1.66 | 0.00 | 0.00 | 0.21 | l | 0.18 | 5.03 | a | |||||||||||
2002 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.07 | 0.29 | 0.00 | 0.23 | 0.30 | 0.28 | 0.12 | 1.30 | |||||||||||||
2003 | 0.00 | 1.63 | u | 0.83 | 0.68 | c | 0.00 | 0.00 | 0.12 | ----- | z | 0.00 | 0.00 | ----- | z | 0.55 | 2.18 | c | ||||||||
2004 | 0.15 | 1.19 | t | 1.20 | 1.13 | w | 0.00 | 0.00 | 0.00 | 0.40 | 0.00 | ----- | z | 1.99 | y | ----- | z | 1.75 | e | |||||||
2005 | 2.44 | 2.81 | q | ----- | z | ----- | z | 0.00 | 0.25 | a | 0.21 | 0.47 | 0.00 | 1.12 | a | 0.00 | 0.00 | 4.49 | c | |||||||
2006 | ----- | z | 0.00 | 0.90 | 0.00 | 0.00 | 0.14 | 1.18 | 0.03 | ----- | z | 1.38 | 0.00 | 0.10 | 3.73 | b | ||||||||||
2007 | 0.25 | 0.34 | 0.00 | 0.02 | 0.00 | 0.00 | ----- | z | ----- | z | 0.57 | 0.00 | 0.00 | 1.63 | 2.81 | b | ||||||||||
2008 | 0.56 | 0.25 | 0.00 | 0.00 | 0.32 | 0.00 | 0.50 | 0.10 | 0.03 | 0.47 | 0.62 | 1.38 | 4.23 | |||||||||||||
2009 | 0.25 | 1.25 | 0.00 | 0.26 | 0.01 | 0.04 | 0.32 | 0.01 | 0.00 | 0.00 | 0.00 | 0.46 | 2.60 | |||||||||||||
2010 | 2.55 | 1.16 | 0.69 | 0.07 | 0.04 | 0.00 | 0.00 | 0.89 | 0.00 | 1.51 | 0.04 | 2.89 | 9.84 | |||||||||||||
2011 | 0.01 | 0.89 | 0.23 | 0.20 | 0.21 | 0.00 | 0.77 | 0.00 | 0.41 | 1.46 | 0.49 | 0.32 | 4.99 | |||||||||||||
2012 | 0.03 | 0.22 | 0.28 | 0.44 | 0.00 | 0.00 | 0.08 | 1.70 | 0.81 | 0.76 | 0.00 | 1.02 | 5.34 | |||||||||||||
2013 | 0.42 | 0.11 | 0.57 | 0.08 | 0.00 | 0.00 | 0.10 | 0.15 | 0.35 | 0.17 | 1.49 | 0.14 | 3.58 | |||||||||||||
2014 | 0.04 | 0.01 | S | 0.46 | 0.06 | 0.00 | 0.00 | 0.10 | 0.83 | 0.93 | 0.00 | 0.06 | 0.61 | 3.10 | ||||||||||||
2015 | 0.56 | 0.69 | 0.37 | 0.18 | 0.10 | 0.01 | 0.14 | 1.03 | 0.12 | 1.22 | 0.14 | 0.22 | 4.78 | |||||||||||||
2016 | 1.52 | 0.81 | 0.00 | 1.04 | 0.39 | 0.09 | 0.14 | 0.63 | 0.02 | 0.32 | 0.54 | 1.79 | 7.29 | |||||||||||||
2017 | 0.89 | 0.55 | 0.04 | 0.27 | 0.03 | 0.00 | 0.98 | 0.20 | 0.51 | 0.00 | 0.00 | 0.07 | 3.54 | |||||||||||||
2018 | 1.65 | 0.07 | 0.68 | 0.00 | 0.24 | 0.00 | 1.46 | 0.67 | 0.85 | 0.68 | 0.04 | 0.11 | 6.45 | |||||||||||||
2019 | 1.69 | 2.57 | 0.92 | 0.34 | 1.26 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 2.57 | 1.13 | 10.51 | |||||||||||||
2020 | 0.00 | 0.67 | 3.17 | 0.32 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.01 | 0.04 | 0.00 | 4.23 | |||||||||||||
2021 | 0.30 | 0.00 | 0.27 | 0.00 | 0.00 | a | 2.10 | 0.96 | 0.00 | 0.24 | 0.28 | 0.01 | 0.37 | 4.53 | ||||||||||||
2022 | 0.04 | 0.00 | 0.03 | 0.10 | 0.00 | 0.10 | 0.77 | 0.53 | 2.08 | 0.36 | 0.39 | 0.10 | 4.50 | |||||||||||||
2023 | 1.36 | 0.85 | 0.94 | 0.05 | 0.06 | 0.08 | 0.00 | 1.22 | 1.78 | 0.34 | 0.27 | 0.04 | 6.99 | |||||||||||||
2024 | 0.97 | 1.42 | 1.08 | 0.00 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.47 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.57 | 0.59 | 0.52 | 0.28 | 0.14 | 0.09 | 0.27 | 0.39 | 0.43 | 0.39 | 0.39 | 0.56 | 4.74 | |||||||||||||
S.D. | 0.68 | 0.66 | 0.80 | 0.46 | 0.24 | 0.29 | 0.40 | 0.49 | 0.65 | 0.55 | 0.57 | 0.68 | 2.57 | |||||||||||||
SKEW | 1.30 | 1.36 | 3.20 | 2.67 | 3.08 | 5.98 | 2.39 | 1.47 | 2.35 | 1.65 | 1.94 | 1.43 | 0.83 | |||||||||||||
MAX | 2.55 | 2.67 | 4.68 | 2.19 | 1.26 | 2.10 | 2.09 | 1.92 | 3.50 | 2.12 | 2.57 | 2.89 | 12.37 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.71 | |||||||||||||
YRS | 57 | 51 | 57 | 58 | 61 | 61 | 60 | 58 | 59 | 57 | 55 | 57 | 41 |