YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.36 | 1.83 | 0.89 | 0.62 | 1.69 | 5.39 | g | |||||
1949 | 1.15 | 1.35 | 0.30 | 0.05 | 3.51 | 0.56 | 0.00 | 0.12 | 0.23 | 0.35 | 0.00 | b | 0.75 | 8.37 | ||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.15 | g | 0.02 | a | 0.31 | 0.33 | j | |
1960 | 0.30 | 2.38 | 1.55 | 0.78 | 1.09 | 0.02 | 0.16 | 0.00 | 0.53 | 0.68 | 2.89 | 1.70 | 12.08 | |||||||||||||
1961 | 0.28 | 0.61 | f | 0.41 | 0.39 | 1.75 | 0.87 | a | 0.00 | 0.58 | 0.48 | 0.79 | 3.48 | 1.24 | 10.27 | a | ||||||||||
1962 | 0.75 | 2.27 | 1.30 | 0.21 | 1.83 | 0.17 | 0.04 | 0.26 | 0.23 | 8.30 | 0.98 | 1.38 | 17.72 | |||||||||||||
1963 | 0.48 | 1.14 | 1.38 | 1.77 | 2.26 | 1.59 | 0.00 | 0.08 | 0.39 | 1.54 | 1.68 | 0.76 | 13.07 | |||||||||||||
1964 | ----- | z | ----- | z | 1.11 | 0.30 | 1.30 | 3.14 | 0.34 | 0.18 | 0.07 | 0.09 | 1.23 | 6.15 | 13.91 | b | ||||||||||
1965 | 4.78 | 0.10 | 0.03 | 2.54 | 1.02 | 3.00 | 0.36 | 1.33 | 0.08 | 0.05 | 4.27 | a | 1.14 | 18.70 | ||||||||||||
1966 | 0.23 | 0.69 | 0.83 | 0.38 | 0.86 | 0.93 | 0.18 | 0.57 | 0.40 | 0.15 | 6.49 | 2.01 | 13.72 | |||||||||||||
1967 | 1.43 | 0.32 | 3.24 | 2.49 | 1.68 | 1.09 | 0.09 | 0.03 | 0.10 | 1.00 | 0.70 | 0.79 | 12.96 | |||||||||||||
1968 | 1.24 | 0.69 | 0.73 | 0.20 | 2.08 | 0.83 | 0.02 | 2.33 | 0.11 | 1.13 | 1.30 | 4.51 | 15.17 | |||||||||||||
1969 | 4.97 | 2.02 | 0.59 | 1.11 | 1.01 | 2.42 | 0.07 | 0.00 | 0.01 | 1.42 | 0.61 | 3.68 | 17.91 | |||||||||||||
1970 | 2.97 | 0.74 | 2.55 | 0.69 | 1.13 | 2.66 | 0.00 | 0.05 | 0.02 | 0.87 | 3.19 | 1.88 | 16.75 | |||||||||||||
1971 | 0.38 | 0.45 | 2.70 | 1.13 | 2.98 | 1.26 | 0.46 | 0.10 | 0.86 | 0.80 | 0.76 | 2.43 | 14.31 | |||||||||||||
1972 | 1.28 | 1.17 | 0.95 | 1.89 | 1.51 | 0.36 | 0.01 | 0.56 | 0.46 | 1.89 | 1.54 | 0.88 | 12.50 | |||||||||||||
1973 | 1.75 | 1.69 | 1.22 | 0.45 | 1.49 | 0.00 | 0.55 | 0.12 | 0.90 | 2.68 | ----- | z | ----- | z | 10.85 | b | ||||||||||
1974 | 3.01 | a | 1.15 | 4.42 | 0.48 | ----- | z | ----- | z | 1.03 | 0.47 | 0.00 | 0.53 | 0.77 | 2.23 | 14.09 | b | |||||||||
1975 | 1.28 | 3.34 | 1.51 | 1.34 | 0.21 | 1.13 | 0.09 | 0.63 | 0.74 | 3.24 | 1.05 | 0.54 | b | 15.10 | ||||||||||||
1976 | 0.31 | 1.54 | 0.60 | 0.42 | 0.06 | 0.80 | 0.22 | 3.16 | 0.24 | 0.18 | 0.37 | 0.23 | 8.13 | |||||||||||||
1977 | 1.07 | 0.27 | 1.27 | 0.24 | 2.25 | 1.83 | ----- | z | 0.20 | 1.42 | 0.40 | 0.80 | 2.95 | 12.70 | a | |||||||||||
1978 | 3.54 | 1.29 | 1.74 | 3.36 | ----- | z | ----- | z | ----- | z | ----- | z | 0.28 | ----- | z | ----- | z | ----- | z | 10.21 | g | |||||
1979 | ----- | z | ----- | z | 1.27 | 0.84 | ----- | z | ----- | z | ----- | z | ----- | z | 0.11 | ----- | z | 1.13 | a | 5.83 | 9.18 | g | ||||
1980 | ----- | z | 3.72 | a | 1.00 | b | 0.77 | b | 0.48 | 1.27 | 0.00 | 0.00 | 0.32 | 0.55 | 0.37 | 1.86 | c | 10.34 | a | |||||||
1981 | 1.63 | a | 2.43 | 1.48 | 1.01 | a | 2.30 | 0.34 | 0.21 | 0.00 | 0.31 | 3.64 | 5.24 | 2.68 | 21.27 | |||||||||||
1982 | 1.22 | a | 1.69 | a | 2.68 | b | 1.69 | 0.63 | 2.13 | 0.24 | ----- | z | 1.00 | a | 1.54 | b | 1.19 | j | 1.61 | b | 14.43 | b | ||||
1983 | 5.21 | g | 5.75 | 2.42 | 0.72 | g | 0.40 | 0.26 | 0.00 | 0.33 | 0.54 | 0.71 | 3.25 | f | 3.41 | f | 10.41 | d | ||||||||
1984 | 0.15 | d | 0.72 | g | 2.37 | d | 1.05 | d | 0.33 | 0.81 | 0.63 | 0.99 | 0.27 | 1.46 | 2.22 | a | 0.82 | 11.10 | a | |||||||
1985 | 0.07 | 0.72 | 1.59 | 0.02 | b | 0.49 | 0.36 | 0.83 | 0.21 | 1.88 | 0.47 | a | 1.26 | 0.42 | 8.32 | |||||||||||
1986 | 1.11 | 4.25 | 2.42 | 0.68 | 1.89 | a | 0.26 | 0.27 | 0.00 | 1.29 | ----- | z | 0.98 | 0.26 | 13.41 | a | ||||||||||
1987 | 1.42 | 1.08 | 1.42 | 0.12 | 1.00 | ----- | z | 4.70 | 1.52 | 0.01 | 0.13 | 1.00 | 2.56 | a | 14.96 | a | ||||||||||
1988 | 0.59 | a | 0.11 | 0.59 | 1.63 | 1.40 | 0.15 | 0.92 | 0.00 | 0.27 | ----- | z | 2.25 | 0.60 | 8.51 | a | ||||||||||
1989 | 0.85 | c | 0.93 | 4.55 | b | 0.50 | 3.15 | a | 0.17 | 0.00 | 0.69 | 1.17 | 2.61 | 0.60 | 0.25 | 15.47 | ||||||||||
1990 | 1.55 | a | 1.60 | 1.57 | 1.49 | 1.74 | 0.40 | 1.22 | 2.31 | 1.00 | a | 0.48 | 0.73 | 0.30 | a | 14.39 | ||||||||||
1991 | 0.43 | a | 0.23 | 2.98 | g | 1.97 | b | 1.35 | f | 0.62 | c | 0.53 | 0.03 | 0.05 | 1.10 | 0.46 | a | 0.67 | 6.09 | b | ||||||
1992 | 0.52 | 0.72 | 1.45 | 0.43 | 0.36 | 3.33 | 0.45 | 0.18 | 0.13 | 1.33 | 0.43 | 3.41 | d | 12.74 | ||||||||||||
1993 | 3.32 | 1.96 | a | 1.45 | 1.32 | 0.97 | 2.05 | 0.33 | 2.03 | 0.39 | 0.94 | 0.68 | 1.48 | 16.92 | ||||||||||||
1994 | 0.48 | 1.65 | 0.93 | 0.45 | 2.09 | 0.79 | 0.00 | 0.00 | 0.64 | 0.26 | 1.14 | 0.93 | c | 9.36 | ||||||||||||
1995 | 6.71 | 0.28 | 8.67 | 2.22 | 0.78 | 1.97 | 1.13 | 0.00 | 0.08 | 0.37 | 0.45 | 5.13 | h | 22.66 | a | |||||||||||
1996 | 1.61 | 3.60 | 1.07 | 1.72 | 1.75 | 1.10 | 1.09 | 0.10 | 0.57 | 2.10 | 0.87 | 3.79 | 19.37 | |||||||||||||
1997 | 2.70 | 0.54 | 0.46 | 1.12 | 0.56 | 0.91 | 1.20 | 0.53 | 0.94 | 0.74 | 1.56 | 1.02 | 12.28 | |||||||||||||
1998 | 3.07 | a | 3.86 | 3.17 | 1.38 | 4.18 | 3.72 | 1.23 | 0.00 | 0.81 | 1.10 | a | 3.53 | a | 2.67 | 28.72 | ||||||||||
1999 | 1.08 | 2.10 | c | 1.25 | a | 0.95 | 0.23 | 0.28 | 0.08 | 1.09 | 0.32 | 0.69 | 1.29 | a | 0.67 | 10.03 | ||||||||||
2000 | 3.18 | c | 1.82 | 1.06 | 1.70 | 0.43 | 0.10 | 0.59 | 0.00 | 1.03 | 0.79 | 1.14 | 0.14 | 11.98 | ||||||||||||
2001 | 0.57 | 0.95 | 1.24 | 1.79 | 0.03 | 0.70 | 0.33 | 0.06 | 1.18 | 0.28 | 2.33 | 2.02 | 11.48 | |||||||||||||
2002 | 1.00 | 0.84 | 2.81 | 0.79 | 0.89 | 0.64 | 0.02 | 0.06 | 0.00 | 0.12 | 1.80 | 3.38 | a | 12.35 | ||||||||||||
2003 | 1.26 | c | 0.63 | 2.49 | 1.51 | a | 0.91 | 0.47 | 0.92 | 0.77 | 0.60 | 0.02 | 1.32 | a | 1.14 | d | 12.04 | |||||||||
2004 | 0.69 | a | 4.74 | a | 0.21 | 0.41 | 2.20 | 0.18 | 0.21 | 0.65 | 0.15 | 2.38 | 1.93 | 1.21 | e | 14.96 | ||||||||||
2005 | 1.53 | 0.64 | 0.70 | 1.76 | 2.19 | a | 0.59 | 0.00 | 0.00 | 0.33 | 1.01 | 4.92 | 3.87 | 17.54 | ||||||||||||
2006 | 2.24 | 2.81 | 1.76 | 1.83 | 0.89 | 0.38 | a | 0.03 | 0.79 | 0.02 | 0.83 | 1.19 | 0.90 | 13.67 | ||||||||||||
2007 | 0.96 | 2.87 | 0.42 | a | 0.38 | 0.40 | 0.52 | 0.76 | 0.16 | 0.69 | 1.30 | i | 0.79 | 1.07 | 9.02 | a | ||||||||||
2008 | 3.51 | b | 0.88 | 0.57 | 0.37 | 2.47 | 0.10 | 0.00 | 0.14 | 0.00 | 0.01 | 1.67 | c | 0.88 | 10.60 | |||||||||||
2009 | 0.31 | b | 3.06 | 2.25 | b | 0.60 | 0.37 | a | 2.04 | b | 0.06 | 0.22 | d | 0.03 | 1.72 | g | 2.30 | 0.37 | 11.61 | a | ||||||
2010 | 3.06 | j | 0.82 | 0.93 | g | 1.45 | d | 0.40 | 1.36 | 0.12 | b | 0.58 | b | 0.13 | 1.28 | 1.01 | f | 2.35 | 8.49 | c | ||||||
2011 | 0.03 | q | 2.51 | 2.95 | 2.05 | b | 0.39 | 0.06 | 0.06 | q | 0.00 | 0.14 | 0.48 | 0.26 | e | 0.09 | n | 8.84 | c | |||||||
2012 | 0.89 | j | 1.64 | 3.20 | g | 2.36 | d | 0.38 | h | 0.57 | f | 0.07 | g | 0.05 | f | 0.00 | k | 2.29 | j | 4.03 | d | 3.81 | k | 8.03 | i | |
2013 | 0.78 | f | 0.41 | g | 0.27 | g | 1.41 | d | 1.11 | k | 0.21 | f | 0.00 | j | 0.17 | g | 1.21 | e | 0.11 | r | 0.50 | 0.16 | a | 3.28 | h | |
2014 | 0.25 | 1.50 | b | 1.28 | m | 4.88 | i | 1.34 | l | 0.06 | n | 0.49 | m | 0.82 | m | 0.75 | q | 1.19 | h | 1.08 | m | 4.50 | k | 1.75 | j | |
2015 | 0.04 | k | 1.56 | h | 1.22 | k | 1.62 | 2.61 | 0.88 | 0.60 | 0.01 | 0.33 | l | 0.59 | 0.74 | b | 3.09 | i | 7.05 | e | ||||||
2016 | 3.19 | o | 1.82 | k | 2.62 | g | 1.36 | h | 2.67 | k | 1.20 | b | 0.17 | k | 0.00 | g | 0.11 | j | 3.19 | e | 0.68 | d | 1.47 | i | 5.07 | i |
2017 | 2.49 | f | 5.24 | b | 1.84 | 2.88 | g | 0.53 | h | 1.99 | b | 0.61 | 1.09 | 0.16 | 0.84 | a | 3.62 | d | 0.03 | b | 15.42 | c | ||||
2018 | 1.00 | e | 1.64 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.01 | u | 1.26 | 0.54 | j | 3.90 | i | ||
2019 | ----- | z | 1.59 | s | 2.01 | h | 1.16 | m | 2.97 | w | 0.24 | i | 0.00 | 0.46 | h | 1.04 | l | 0.60 | f | 0.05 | n | 1.72 | c | 1.72 | j | |
2020 | 10.13 | i | ----- | z | ----- | z | ----- | z | ----- | z | 0.81 | x | 0.00 | u | ----- | z | 0.00 | a | 0.10 | n | 0.33 | x | ----- | z | 0.00 | k |
2021 | ----- | z | 0.10 | 0.30 | e | 0.10 | b | 0.10 | 0.00 | c | 0.00 | 0.00 | b | 0.00 | t | 0.24 | n | 0.20 | 0.00 | h | 0.80 | d | ||||
2022 | 0.00 | a | 0.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | x | ----- | z | 1.63 | s | 1.42 | p | 0.00 | j |
2023 | 3.90 | q | 1.00 | t | 1.65 | y | 1.26 | r | ----- | z | 1.05 | u | 0.00 | 1.15 | s | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.52 | 1.68 | 1.68 | 1.10 | 1.31 | 1.03 | 0.42 | 0.48 | 0.48 | 1.16 | 1.57 | 1.67 | 14.24 | |||||||||||||
S.D. | 1.42 | 1.36 | 1.40 | 0.76 | 0.97 | 0.94 | 0.71 | 0.69 | 0.47 | 1.34 | 1.39 | 1.41 | 4.18 | |||||||||||||
SKEW | 1.60 | 1.14 | 2.62 | 0.59 | 0.82 | 1.14 | 4.25 | 2.10 | 1.16 | 3.27 | 1.60 | 1.33 | 1.22 | |||||||||||||
MAX | 6.71 | 5.75 | 8.67 | 3.36 | 4.18 | 3.72 | 4.70 | 3.16 | 1.88 | 8.30 | 6.49 | 6.15 | 28.72 | |||||||||||||
MIN | 0.00 | 0.00 | 0.03 | 0.02 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.03 | 8.13 | |||||||||||||
YRS | 50 | 55 | 53 | 56 | 51 | 53 | 54 | 54 | 57 | 51 | 57 | 53 | 33 |