YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1936 | ----- | z | ----- | z | ----- | z | 2.26 | 2.41 | 1.65 | 0.15 | 3.62 | 1.90 | 0.86 | 0.94 | 1.26 | 15.05 | c | |||||||||
1937 | 1.58 | 2.13 | 0.27 | 2.80 | 4.01 | 6.67 | 3.61 | 5.33 | 1.22 | 0.92 | 0.84 | 0.50 | 29.88 | |||||||||||||
1938 | 0.84 | 0.73 | 1.65 | 4.24 | 7.53 | 2.15 | 3.44 | 2.27 | 6.70 | 0.38 | 2.24 | 0.94 | 33.11 | |||||||||||||
1939 | 1.63 | 2.78 | 0.62 | 1.97 | 2.66 | 4.99 | 2.33 | 2.29 | 0.44 | 1.73 | 0.02 | 0.53 | 21.99 | |||||||||||||
1940 | 0.84 | 2.16 | 3.45 | 3.43 | 2.17 | 2.39 | 3.40 | 2.77 | 0.91 | 2.76 | 3.16 | 0.75 | 28.19 | |||||||||||||
1941 | 1.22 | 1.64 | 1.34 | 2.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 6.80 | h | ||||
1942 | 0.13 | 1.25 | 3.78 | 1.89 | 4.88 | 1.66 | 1.85 | 8.90 | 3.02 | 0.85 | a | 0.11 | 0.80 | 29.12 | ||||||||||||
1943 | 0.70 | 0.55 | 1.10 | 1.37 | 6.09 | 5.49 | 2.70 | 3.60 | 1.87 | 1.70 | 1.19 | 0.00 | 26.36 | |||||||||||||
1944 | 0.60 | a | 0.65 | 0.70 | b | 1.84 | 6.55 | 11.98 | 4.78 | 5.59 | 2.20 | 0.10 | 1.64 | 0.35 | 36.98 | |||||||||||
1945 | 0.70 | a | 1.39 | a | 2.48 | a | 2.09 | a | 1.17 | 5.20 | a | ----- | z | ----- | z | ----- | z | 0.32 | 2.20 | a | ----- | z | 15.55 | d | ||
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 | ----- | z | ----- | z | ----- | z | 0.00 | l |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
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 | 1.92 | ----- | z | ----- | z | 1.92 | k | |
1960 | ----- | z | ----- | z | 0.86 | 1.23 | a | 3.61 | 2.95 | 1.42 | 2.59 | 1.24 | 0.53 | 0.96 | 0.62 | 16.01 | b | |||||||||
1961 | 0.02 | 0.11 | 0.50 | 2.56 | 2.71 | 0.22 | 3.58 | 0.77 | 4.12 | 1.89 | 0.79 | ----- | z | 17.27 | a | |||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.84 | 5.26 | 3.19 | 2.36 | 0.69 | 0.15 | u | 0.13 | 13.47 | f | ||||||
1963 | 0.09 | ----- | z | ----- | z | ----- | z | 1.57 | n | 4.04 | 2.95 | 4.24 | 2.91 | 0.58 | 1.51 | 0.80 | 17.12 | d | ||||||||
1964 | 0.27 | 0.10 | 1.42 | 3.47 | 4.15 | 3.33 | 3.46 | 6.06 | 3.98 | 0.11 | 0.62 | 0.93 | 27.90 | |||||||||||||
1965 | 0.32 | 0.83 | 3.60 | 1.79 | 4.38 | 2.73 | 3.05 | 3.64 | 5.42 | 1.35 | 2.39 | 1.65 | 31.15 | |||||||||||||
1966 | 0.63 | 0.88 | 2.34 | 2.18 | 2.40 | 4.07 | 4.32 | 5.56 | 0.72 | 2.08 | 0.77 | 0.75 | 26.70 | |||||||||||||
1967 | 1.62 | 0.10 | 0.43 | 0.82 | 1.20 | 7.72 | 2.57 | 4.53 | 0.47 | 0.94 | 0.36 | 2.44 | b | 23.20 | ||||||||||||
1968 | 0.77 | 0.02 | 1.15 | 4.79 | 4.65 | 7.43 | 4.62 | 2.45 | 6.45 | 4.99 | 0.73 | 1.77 | 39.82 | |||||||||||||
1969 | 2.58 | 0.22 | 0.25 | 1.79 | 1.55 | 2.55 | 3.46 | 0.64 | 2.67 | 1.43 | 0.73 | 2.15 | 20.02 | |||||||||||||
1970 | 0.12 | 0.19 | 0.71 | 3.56 | 3.05 | 3.86 | 1.93 | 2.63 | 2.51 | 5.74 | 3.18 | 0.94 | 28.42 | |||||||||||||
1971 | 1.24 | 1.76 | 0.89 | 1.33 | 2.93 | 4.17 | 3.85 | 3.51 | 1.28 | 8.03 | 1.98 | 0.87 | 31.84 | |||||||||||||
1972 | 1.02 | 0.62 | 1.92 | 1.38 | 2.77 | 3.82 | 22.70 | 5.68 | 2.25 | 2.70 | 0.75 | 1.40 | 47.01 | |||||||||||||
1973 | 0.20 | 0.20 | 1.70 | 2.05 | 3.60 | 3.45 | 6.87 | 4.89 | 3.31 | 5.58 | 2.88 | 1.10 | 35.83 | |||||||||||||
1974 | 0.30 | 1.40 | 0.84 | 4.80 | 4.71 | 7.01 | 4.70 | 5.71 | 0.95 | 1.73 | 3.13 | 0.56 | 35.84 | |||||||||||||
1975 | 1.19 | 0.42 | 1.71 | 3.19 | 3.33 | 7.66 | 6.32 | 3.83 | 4.68 | 1.51 | 2.47 | 0.45 | 36.76 | |||||||||||||
1976 | 1.78 | 1.11 | 2.87 | 1.19 | 2.66 | 9.58 | 3.31 | 1.25 | 0.64 | 0.51 | 0.67 | 0.41 | 25.98 | |||||||||||||
1977 | 1.08 | 0.70 | 3.00 | 1.96 | 3.69 | ----- | z | ----- | z | ----- | z | 4.10 | 2.30 | 3.18 | 1.46 | 21.47 | c | |||||||||
1978 | 0.15 | ----- | z | 0.65 | 2.43 | 3.12 | 4.31 | 8.25 | 4.75 | 3.48 | 0.10 | 0.40 | a | 1.46 | 29.10 | a | ||||||||||
1979 | 0.40 | 1.01 | 3.05 | b | 0.45 | 3.81 | 3.60 | 3.47 | 2.08 | 1.80 | 1.89 | 1.40 | 0.36 | a | 23.32 | |||||||||||
1980 | 0.94 | a | 0.08 | g | 0.43 | l | 0.16 | 1.80 | 3.46 | 2.73 | 3.70 | 4.63 | 0.46 | h | 0.15 | 0.04 | 17.61 | c | ||||||||
1981 | 0.00 | b | 0.75 | 0.87 | 3.14 | h | 1.60 | 8.23 | 2.21 | 5.32 | ----- | z | ----- | z | ----- | z | ----- | z | 18.98 | e | ||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
1983 | ----- | z | ----- | z | ----- | z | 0.92 | 1.72 | b | 2.81 | 3.94 | 1.40 | 3.86 | 1.90 | 4.13 | 1.01 | a | 21.69 | c | |||||||
1984 | 0.55 | 0.73 | 0.36 | 2.06 | 2.54 | 6.54 | 3.74 | 1.00 | 4.94 | 4.81 | 0.17 | 3.58 | 31.02 | |||||||||||||
1985 | 0.15 | 0.36 | 1.78 | 5.24 | 2.46 | 5.96 | 4.67 | 3.43 | 5.78 | 1.46 | 1.44 | 0.45 | 33.18 | |||||||||||||
1986 | 0.87 | 0.71 | 0.69 | a | 3.62 | 4.14 | 7.00 | 4.99 | 6.59 | 5.44 | 0.41 | 1.21 | 0.25 | 35.92 | ||||||||||||
1987 | 0.27 | 0.13 | 0.46 | 0.22 | 2.27 | 1.03 | 2.81 | 4.76 | 2.08 | 0.78 | 0.94 | 0.83 | 16.58 | |||||||||||||
1988 | 0.44 | 0.04 | 1.33 | 0.23 | 2.80 | 1.63 | 3.78 | 5.24 | d | 2.70 | 0.64 | 2.16 | 0.84 | o | 20.99 | a | ||||||||||
1989 | 1.03 | 0.29 | 1.25 | 2.15 | a | 5.11 | 2.06 | 0.41 | 4.51 | 2.85 | 1.49 | 0.97 | a | 0.21 | 22.33 | |||||||||||
1990 | 0.23 | 0.59 | 2.23 | 3.71 | 1.40 | 5.61 | ----- | z | ----- | z | 2.67 | 4.70 | 0.00 | a | 0.20 | 21.34 | b | |||||||||
1991 | 0.00 | 0.00 | e | 0.00 | c | 1.77 | 5.36 | 4.08 | 7.63 | 1.33 | 3.11 | 0.75 | 2.68 | 0.00 | c | 26.71 | ||||||||||
1992 | 0.00 | a | 0.00 | a | 1.70 | e | 1.45 | a | 0.92 | 2.40 | 3.50 | 5.35 | 1.60 | 0.33 | a | 0.00 | c | 0.00 | d | 17.25 | ||||||
1993 | ----- | z | 0.00 | 0.60 | 2.30 | 4.17 | 3.82 | 4.54 | 5.09 | 0.72 | 0.42 | ----- | z | ----- | z | 21.66 | c | |||||||||
1994 | ----- | z | ----- | z | ----- | z | 3.19 | 1.20 | 4.23 | 2.79 | 1.80 | 4.81 | 2.99 | 0.84 | 0.35 | 22.20 | c | |||||||||
1995 | 0.75 | a | ----- | z | 1.65 | b | 0.88 | a | 1.42 | 0.79 | 6.17 | 7.08 | 2.39 | 3.70 | a | 0.00 | g | 0.00 | d | 24.83 | b | |||||
1996 | 0.00 | e | 0.00 | f | 0.00 | d | 0.70 | c | 2.18 | 2.76 | 4.10 | 1.10 | 2.48 | 3.08 | 2.55 | f | 0.00 | p | 16.40 | c | ||||||
1997 | 0.00 | k | 0.25 | b | 0.00 | g | 0.50 | b | 1.44 | 2.88 | 5.77 | 2.71 | 2.17 | 2.11 | 1.45 | e | 0.00 | j | 19.28 | c | ||||||
1998 | 0.00 | l | 0.00 | b | 0.75 | a | 2.08 | a | 2.64 | 7.16 | 1.90 | 2.95 | 0.97 | 1.70 | 1.42 | a | 0.72 | c | 22.29 | a | ||||||
1999 | 1.82 | 0.45 | 0.50 | o | 0.72 | d | 5.17 | 4.14 | 4.28 | 4.10 | 3.29 | 1.38 | 0.80 | 0.32 | 26.47 | a | ||||||||||
2000 | 0.26 | ----- | z | 0.70 | r | 0.00 | a | 2.34 | 2.91 | 4.15 | 2.16 | 1.11 | 1.00 | 3.93 | 0.36 | a | 18.22 | b | ||||||||
2001 | 0.45 | ----- | z | ----- | z | ----- | z | ----- | z | 8.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | 1.82 | p | 0.45 | a | 8.90 | i | |
2002 | 0.06 | 1.45 | 2.25 | 2.69 | 3.14 | 3.59 | 10.92 | 5.79 | 3.08 | 2.90 | 0.09 | 0.24 | 36.20 | |||||||||||||
2003 | 0.03 | 0.16 | 0.49 | 2.86 | 2.81 | 6.38 | 3.33 | 1.21 | 3.52 | 1.28 | 1.41 | 0.28 | 23.76 | |||||||||||||
2004 | 0.46 | 1.22 | 1.38 | 1.32 | 3.86 | 2.06 | 3.16 | 1.63 | 6.07 | 2.09 | 0.57 | 0.59 | 24.41 | |||||||||||||
2005 | 1.06 | 0.82 | 1.12 | 3.29 | 4.12 | 9.58 | 1.49 | 3.00 | 4.27 | 3.76 | 2.60 | 0.86 | 35.97 | |||||||||||||
2006 | 0.38 | 0.49 | 0.58 | 2.21 | 2.55 | 2.18 | 1.27 | 2.73 | 1.78 | 1.60 | 0.65 | 1.05 | 17.47 | |||||||||||||
2007 | 0.55 | a | 0.74 | 1.90 | 1.89 | 1.26 | 2.11 | 2.74 | 1.78 | 4.02 | 6.57 | 0.12 | 0.90 | 24.58 | ||||||||||||
2008 | 0.13 | 0.40 | 1.02 | 3.15 | c | 2.62 | 5.02 | 2.97 | 2.26 | 3.23 | 3.76 | 1.73 | 0.89 | d | 27.18 | |||||||||||
2009 | 0.21 | a | 0.80 | 3.06 | 1.60 | a | 1.11 | 3.47 | 0.00 | 2.52 | 0.65 | 5.64 | 0.50 | b | 0.76 | a | 20.32 | |||||||||
2010 | 0.35 | a | 0.10 | d | 0.75 | 0.98 | 3.30 | 3.29 | 6.20 | 7.11 | 3.72 | 4.61 | 1.01 | a | 1.27 | b | 32.69 | |||||||||
2011 | 0.31 | a | 0.22 | b | 0.47 | h | 2.25 | 5.97 | 3.14 | 4.44 | b | 5.53 | 1.00 | 1.20 | a | 0.62 | a | 0.16 | 24.84 | a | ||||||
2012 | 0.34 | d | 0.75 | a | 1.28 | 2.52 | 8.12 | 8.31 | S | 5.11 | c | 2.17 | 0.81 | a | 0.85 | 0.71 | a | 0.59 | h | 30.97 | a | |||||
2013 | 0.56 | h | 0.55 | 1.61 | 2.91 | n | 3.98 | a | 6.43 | 1.12 | a | 0.92 | 3.28 | c | 5.49 | 0.36 | 1.69 | 25.43 | b | |||||||
2014 | 0.36 | g | 1.04 | 1.28 | 3.23 | a | 3.94 | 6.27 | 3.62 | 5.80 | b | 4.04 | a | 1.23 | a | 1.42 | a | 0.84 | f | 31.87 | b | |||||
2015 | 0.09 | g | 0.30 | 0.63 | 0.83 | a | 4.52 | 5.07 | 4.82 | b | 4.11 | 2.35 | 2.94 | a | 2.06 | 1.35 | c | 28.98 | a | |||||||
2016 | 0.52 | 0.68 | 2.67 | 2.78 | 2.03 | a | 4.78 | c | 9.17 | a | 3.67 | 4.01 | 1.86 | 1.62 | d | 1.34 | d | 35.13 | ||||||||
2017 | 0.77 | a | 0.95 | a | 0.91 | 3.11 | 2.57 | c | 4.31 | 3.48 | 5.82 | a | 4.79 | 3.89 | 0.88 | a | 0.35 | c | 31.83 | |||||||
2018 | 0.14 | g | 0.90 | 1.28 | 0.75 | b | 1.44 | 8.84 | 7.89 | 6.35 | 2.39 | 4.98 | 1.14 | a | 0.61 | c | 36.57 | a | ||||||||
2019 | 0.35 | e | 0.80 | b | 1.41 | 3.03 | 4.47 | 4.01 | a | 5.09 | f | 1.62 | f | 10.21 | a | 4.59 | b | 1.04 | a | 3.11 | c | 33.02 | b | |||
2020 | 0.59 | l | 0.01 | 1.71 | 1.12 | c | 1.09 | a | 3.34 | 8.39 | a | 6.26 | c | 1.26 | 1.87 | a | 1.58 | b | 0.63 | b | 27.26 | a | ||||
2021 | 0.66 | 0.42 | 2.30 | c | 2.69 | b | 1.37 | b | 1.52 | a | 2.67 | 3.75 | 3.67 | 2.50 | 1.25 | 2.36 | a | 25.16 | ||||||||
2022 | 0.27 | a | 0.60 | 1.08 | 1.92 | c | 6.60 | a | 4.49 | 2.18 | a | 2.48 | b | 2.79 | b | 0.94 | 2.69 | d | 1.85 | 27.89 | ||||||
2023 | 1.81 | d | 0.98 | 1.85 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 4.64 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.63 | 0.68 | 1.41 | 2.11 | 3.23 | 4.46 | 4.20 | 3.74 | 2.97 | 2.24 | 1.35 | 0.88 | 28.90 | |||||||||||||
S.D. | 0.57 | 0.59 | 0.91 | 1.17 | 1.63 | 2.40 | 3.12 | 1.86 | 1.80 | 1.80 | 1.00 | 0.74 | 6.66 | |||||||||||||
SKEW | 1.21 | 1.28 | 0.79 | 0.41 | 0.84 | 0.77 | 3.38 | 0.31 | 1.12 | 1.10 | 0.86 | 1.49 | 0.24 | |||||||||||||
MAX | 2.58 | 2.78 | 3.78 | 5.24 | 8.12 | 11.98 | 22.70 | 8.90 | 10.21 | 8.03 | 4.13 | 3.58 | 47.01 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.92 | 0.22 | 0.00 | 0.64 | 0.44 | 0.10 | 0.00 | 0.00 | 16.58 | |||||||||||||
YRS | 60 | 61 | 62 | 67 | 68 | 70 | 66 | 66 | 68 | 69 | 65 | 62 | 41 |