YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.65 | 1.25 | 1.90 | j | ||
1941 | 0.77 | 1.01 | a | 3.49 | 1.62 | l | 1.04 | 0.97 | 1.49 | 1.05 | 1.49 | 3.10 | a | 0.88 | 0.54 | 15.83 | a | |||||||||
1942 | 1.15 | 1.16 | 1.85 | 1.79 | q | 0.21 | 1.25 | 2.23 | 1.32 | 0.43 | 0.96 | 0.80 | 1.56 | 12.92 | a | |||||||||||
1943 | 3.30 | 0.34 | a | 3.84 | a | 0.25 | 1.70 | 1.60 | 2.45 | 2.70 | 0.75 | 1.25 | 0.04 | 0.20 | a | 18.42 | ||||||||||
1944 | 1.45 | 2.10 | 2.71 | 2.02 | 1.26 | 0.50 | 0.70 | 0.85 | 0.20 | 1.39 | 1.33 | 1.05 | 15.56 | |||||||||||||
1945 | 0.50 | 1.00 | 1.50 | 1.55 | 0.40 | 0.70 | 2.70 | 3.05 | 0.95 | 0.58 | 1.15 | a | 1.37 | 15.45 | ||||||||||||
1946 | 0.60 | 0.37 | 1.05 | 2.25 | 2.15 | 0.40 | 2.30 | 1.29 | 0.50 | 2.15 | 1.50 | 0.65 | 15.21 | |||||||||||||
1947 | 0.85 | 1.35 | 1.40 | 1.70 | 2.10 | 1.95 | 1.70 | 1.75 | 2.15 | 2.00 | 0.80 | 0.65 | 18.40 | |||||||||||||
1948 | 1.15 | 2.10 | 2.40 | 2.25 | 0.45 | 1.35 | 0.75 | 1.95 | 0.20 | 1.15 | 1.55 | 1.46 | 16.76 | |||||||||||||
1949 | 1.00 | 1.75 | 1.35 | 1.20 | 1.50 | 2.95 | 2.95 | 0.45 | 1.40 | 1.10 | 0.55 | 1.05 | 17.25 | |||||||||||||
1950 | 2.45 | 1.25 | 1.35 | 1.45 | 0.55 | 0.15 | 1.45 | 0.20 | 1.65 | 0.25 | 1.75 | 1.85 | 14.35 | |||||||||||||
1951 | 1.30 | 0.90 | 0.65 | 1.35 | 0.65 | 0.55 | 1.15 | 1.75 | 0.50 | 0.75 | 1.35 | 4.20 | 15.10 | |||||||||||||
1952 | 1.95 | 0.85 | 1.75 | 0.65 | 0.90 | 0.50 | 2.20 | 2.05 | 1.20 | 0.00 | 1.10 | 0.95 | 14.10 | |||||||||||||
1953 | 1.49 | 0.45 | a | 1.60 | 1.10 | 1.85 | 0.75 | 2.40 | 2.15 | 0.05 | 1.70 | 1.15 | 0.75 | 15.44 | ||||||||||||
1954 | 0.85 | 0.80 | 1.81 | 0.75 | 1.70 | 0.30 | 3.15 | 0.70 | 1.45 | 0.45 | 1.30 | 1.10 | 14.36 | |||||||||||||
1955 | 1.06 | 1.27 | 1.36 | 0.50 | 1.70 | 0.60 | 2.55 | 4.55 | 0.20 | 0.85 | 1.65 | 1.40 | 17.69 | |||||||||||||
1956 | 2.75 | 1.31 | 0.85 | 2.20 | 1.05 | 1.50 | 0.95 | 1.25 | 0.50 | 1.50 | 1.00 | 0.75 | 15.61 | |||||||||||||
1957 | 4.65 | 1.40 | 1.30 | 2.50 | 3.05 | 1.15 | 2.55 | 2.15 | 0.15 | 0.95 | 1.35 | 1.50 | 22.70 | |||||||||||||
1958 | 0.55 | 1.40 | 1.85 | 1.40 | 0.40 | 0.10 | 0.45 | 1.35 | 1.35 | 0.25 | 0.65 | 0.70 | 10.45 | |||||||||||||
1959 | 0.50 | 2.00 | 0.85 | 1.80 | 0.70 | 1.05 | 1.45 | 1.85 | 4.05 | 1.50 | 0.60 | 0.45 | 16.80 | |||||||||||||
1960 | 0.50 | 2.40 | 1.25 | 1.55 | 1.00 | 0.10 | 1.55 | 0.30 | 0.75 | 0.95 | 1.45 | 0.60 | 12.40 | |||||||||||||
1961 | 0.30 | 0.95 | 2.10 | 2.00 | 1.20 | 0.35 | 0.89 | 1.67 | 4.20 | 3.00 | 1.65 | 1.00 | 19.31 | |||||||||||||
1962 | 3.00 | 1.95 | 0.35 | 1.75 | 1.10 | 0.15 | 1.73 | 0.80 | 0.95 | a | 0.90 | 0.75 | 1.05 | a | 14.48 | |||||||||||
1963 | 1.25 | 1.65 | 0.90 | 0.40 | 0.80 | 1.20 | 1.15 | 4.35 | 0.75 | 1.65 | 0.40 | 0.80 | 15.30 | |||||||||||||
1964 | 0.50 | 0.55 | 2.35 | a | 1.35 | 1.10 | 0.90 | 2.15 | 3.00 | 0.85 | 0.05 | 2.00 | 3.65 | 18.45 | ||||||||||||
1965 | 1.45 | 1.05 | 2.75 | 1.40 | 1.15 | 1.95 | 2.65 | 2.40 | 1.80 | 0.90 | 2.50 | 1.15 | 21.15 | |||||||||||||
1966 | 0.40 | 0.85 | 0.40 | 1.05 | 2.55 | 1.30 | 1.15 | 1.25 | 1.00 | 0.95 | 1.00 | 2.35 | a | 14.25 | ||||||||||||
1967 | 2.15 | 0.90 | 0.85 | 0.25 | 1.50 | 1.80 | 1.65 | 2.20 | 2.75 | 0.20 | 0.75 | 2.25 | 17.25 | |||||||||||||
1968 | 0.75 | 1.05 | 0.50 | 1.50 | 0.95 | 0.10 | 2.20 | 3.60 | 1.15 | 0.75 | 1.30 | 1.15 | 15.00 | |||||||||||||
1969 | 3.45 | 1.00 | 0.85 | 0.55 | 1.40 | 3.60 | 1.70 | 1.90 | 1.50 | 3.85 | 0.55 | 1.80 | 22.15 | |||||||||||||
1970 | 0.65 | 0.30 | 1.60 | 1.20 | 0.05 | 1.45 | 1.16 | 2.00 | 4.00 | 1.60 | 1.00 | 0.80 | 15.81 | |||||||||||||
1971 | 0.65 | 1.35 | 1.20 | 0.90 | 1.10 | 0.10 | 2.20 | 1.60 | 2.15 | 1.75 | 1.00 | 2.25 | 16.25 | |||||||||||||
1972 | 0.90 | 0.70 | 1.55 | 1.20 | 0.85 | 1.20 | 0.35 | 0.80 | 1.85 | 2.35 | 1.45 | 1.50 | 14.70 | |||||||||||||
1973 | 0.30 | 0.60 | 1.15 | 1.20 | 1.30 | 1.75 | 1.85 | 1.80 | 1.25 | 0.10 | 0.65 | 2.15 | 14.10 | |||||||||||||
1974 | 2.25 | 0.45 | 1.40 | 1.10 | 0.05 | 0.85 | 1.00 | 0.70 | 0.90 | 1.20 | 0.70 | 0.88 | 11.48 | |||||||||||||
1975 | 1.55 | 1.15 | 1.20 | 0.80 | 0.85 | 0.70 | 1.15 | 0.70 | 0.75 | 0.85 | 1.75 | 0.65 | 12.10 | |||||||||||||
1976 | 0.90 | 2.55 | 1.25 | 1.20 | 1.15 | 0.90 | 1.95 | 1.85 | 1.70 | 0.25 | 0.20 | 0.05 | 13.95 | |||||||||||||
1977 | 0.45 | 0.40 | 0.50 | 1.75 | 0.80 | 0.55 | 3.35 | 2.20 | 1.55 | 1.40 | 0.85 | 2.60 | 16.40 | |||||||||||||
1978 | 1.65 | 0.75 | 1.95 | 1.10 | 1.15 | 0.85 | 1.00 | 1.20 | 0.35 | 0.60 | 0.70 | 3.15 | 14.45 | |||||||||||||
1979 | 2.55 | 0.85 | 1.40 | 0.30 | 2.15 | 1.45 | 0.95 | 1.85 | 0.15 | 1.00 | 1.45 | 0.50 | 14.60 | |||||||||||||
1980 | 3.65 | 2.20 | 1.05 | 0.60 | a | 1.95 | 0.00 | 0.60 | 1.05 | 1.00 | 1.40 | 0.70 | 0.60 | 14.80 | ||||||||||||
1981 | 0.60 | 1.35 | 2.40 | 0.50 | 3.05 | 0.25 | 3.35 | 1.70 | 1.15 | 1.80 | 0.50 | 2.45 | 19.10 | |||||||||||||
1982 | 2.30 | 0.50 | 2.85 | 1.20 | 0.95 | 1.00 | 1.25 | 2.50 | 2.95 | 0.80 | 1.30 | 0.60 | 18.20 | |||||||||||||
1983 | 0.45 | 1.55 | 2.15 | a | 1.40 | 2.15 | 1.35 | 2.80 | 2.50 | 0.95 | 0.80 | 3.30 | 3.20 | 22.60 | ||||||||||||
1984 | 0.35 | 0.45 | 1.10 | 0.78 | 1.60 | ----- | z | 2.10 | 3.55 | 0.95 | 2.95 | 1.40 | 1.85 | 17.08 | a | |||||||||||
1985 | 1.35 | 0.90 | 3.20 | 1.50 | 1.95 | 0.55 | ----- | z | 0.55 | 2.40 | 1.35 | 2.95 | 1.35 | 18.05 | a | |||||||||||
1986 | 0.15 | 4.20 | 0.55 | 1.50 | 1.00 | 1.25 | 3.20 | 1.40 | 2.50 | 1.45 | 2.80 | 0.55 | 20.55 | |||||||||||||
1987 | 1.30 | 1.55 | 1.25 | 0.60 | 2.75 | 1.45 | ----- | z | 2.05 | 0.50 | 0.85 | 0.85 | 0.95 | 14.10 | a | |||||||||||
1988 | 1.85 | 0.85 | 0.55 | 1.45 | 0.70 | 2.30 | 1.90 | 1.15 | 1.40 | 0.50 | 1.75 | 1.65 | 16.05 | |||||||||||||
1989 | 0.65 | 1.80 | 1.35 | 1.20 | 0.95 | 1.15 | 2.00 | 0.75 | 1.60 | 1.15 | 1.05 | 0.75 | 14.40 | |||||||||||||
1990 | 0.80 | 0.80 | 0.95 | 2.75 | 1.20 | 0.60 | 2.70 | 1.10 | 2.60 | 2.45 | 1.70 | 0.95 | 18.60 | |||||||||||||
1991 | 0.60 | 0.55 | 3.20 | 1.10 | 0.55 | 1.90 | 1.50 | 1.40 | 1.00 | 1.20 | 2.90 | 0.15 | 16.05 | |||||||||||||
1992 | 0.20 | 0.45 | 1.40 | 0.80 | 2.45 | 0.70 | 3.40 | 3.10 | 1.05 | 0.75 | 1.40 | 1.30 | 17.00 | |||||||||||||
1993 | 1.75 | 4.05 | 2.35 | 1.75 | 0.95 | 0.60 | 0.75 | 1.90 | 1.35 | 2.00 | 1.25 | 0.40 | 19.10 | |||||||||||||
1994 | 0.55 | 1.50 | 0.70 | 2.85 | 1.00 | 0.80 | 0.10 | 1.10 | 2.65 | 1.80 | 1.70 | 0.70 | 15.45 | |||||||||||||
1995 | 1.05 | 2.50 | 3.35 | 2.90 | 3.25 | 1.60 | 1.45 | 2.20 | 1.45 | 0.35 | 1.20 | 0.55 | 21.85 | |||||||||||||
1996 | 3.05 | 2.45 | 1.65 | 1.30 | 0.65 | 1.25 | 0.45 | 0.55 | 1.00 | 1.10 | 1.45 | 3.20 | 18.10 | |||||||||||||
1997 | 1.95 | 1.40 | 0.30 | 2.15 | 2.75 | 0.85 | 0.75 | 2.60 | 1.20 | 1.30 | 1.80 | 1.05 | 18.10 | |||||||||||||
1998 | 0.95 | 0.80 | 1.40 | 1.65 | 0.15 | 0.25 | 2.15 | 1.40 | 0.25 | 2.80 | 1.75 | 0.35 | 13.90 | |||||||||||||
1999 | 2.70 | 1.30 | 0.50 | 4.25 | 1.55 | 1.00 | 4.15 | 3.00 | 2.40 | 0.60 | 0.35 | 1.35 | 23.15 | |||||||||||||
2000 | 1.80 | 2.05 | 1.45 | 0.95 | 2.05 | 0.95 | 2.70 | 2.70 | 1.70 | 1.05 | 0.77 | 1.57 | 19.74 | |||||||||||||
2001 | 0.77 | 1.11 | 0.93 | 1.23 | 1.38 | 0.93 | 2.32 | 3.41 | 0.80 | 1.74 | 1.00 | 0.88 | 16.50 | |||||||||||||
2002 | 0.32 | 0.65 | 0.90 | 0.73 | 0.24 | 0.30 | 1.38 | 1.48 | 2.32 | 1.45 | 2.55 | 0.62 | 12.94 | |||||||||||||
2003 | 0.37 | 2.18 | 1.58 | 1.09 | 1.31 | 1.29 | 1.21 | 2.39 | 2.58 | 0.37 | 1.72 | 0.98 | 17.07 | |||||||||||||
2004 | 1.66 | 1.25 | 0.68 | 2.49 | 0.60 | 1.42 | 2.24 | 0.55 | 2.30 | 1.22 | 1.43 | 0.74 | 16.58 | |||||||||||||
2005 | 2.97 | 0.81 | 0.25 | 1.28 | 1.19 | 1.85 | 1.16 | 2.29 | 2.21 | 1.96 | 1.77 | 1.73 | 19.47 | |||||||||||||
2006 | 0.91 | 0.66 | 1.04 | 1.67 | 0.68 | 0.51 | 2.39 | 3.01 | 1.48 | 2.44 | 1.37 | 0.58 | 16.74 | |||||||||||||
2007 | 0.15 | 0.95 | 0.82 | 1.38 | 1.51 | 0.46 | 2.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 7.62 | e | |||||||
2008 | ----- | z | ----- | z | 1.67 | 1.07 | 2.48 | 0.20 | 1.58 | 1.50 | 1.55 | 0.82 | 0.73 | 4.20 | b | 15.80 | b | |||||||||
2009 | 2.76 | a | 3.01 | 0.82 | 1.59 | 2.35 | 2.09 | 1.56 | a | 0.69 | 0.95 | b | 1.62 | 0.67 | 3.89 | 22.00 | ||||||||||
2010 | 1.58 | 1.70 | 1.65 | a | 1.27 | 1.00 | 0.52 | 1.59 | 3.21 | 1.34 | 3.31 | 1.00 | 3.59 | a | 21.76 | |||||||||||
2011 | 1.03 | d | 1.36 | 1.73 | 2.23 | 1.44 | 0.18 | 2.27 | 1.71 | 1.00 | c | 2.26 | 1.29 | e | 0.31 | 16.81 | ||||||||||
2012 | 1.93 | 0.93 | h | 0.35 | 0.63 | 0.50 | c | 0.36 | 2.78 | 2.76 | 1.52 | 1.08 | 0.55 | 1.95 | b | 14.41 | a | |||||||||
2013 | 1.91 | 1.09 | 1.40 | b | 1.81 | a | 2.03 | 0.49 | a | 3.05 | 3.06 | 3.21 | b | 1.21 | 1.78 | e | 1.40 | a | 22.44 | |||||||
2014 | 2.05 | 2.40 | a | 1.85 | 0.96 | 1.70 | 0.19 | 3.63 | 2.29 | 4.37 | 1.31 | 1.81 | f | 2.32 | d | 23.07 | a | |||||||||
2015 | 0.36 | d | 1.48 | e | 1.08 | 1.51 | b | 4.69 | c | 1.74 | 2.38 | 2.67 | 1.44 | 1.57 | 1.29 | 2.03 | b | 22.24 | ||||||||
2016 | 1.45 | a | 1.08 | 0.94 | b | 2.14 | a | 2.08 | 1.02 | c | 2.81 | a | 2.83 | 1.11 | e | 0.77 | b | 1.36 | 3.20 | e | 20.79 | |||||
2017 | 8.82 | c | 1.47 | S | 0.82 | b | 1.13 | b | 1.67 | b | 0.06 | 2.97 | c | 3.94 | 1.54 | a | 2.06 | b | 1.64 | b | 1.27 | h | 26.12 | a | ||
2018 | 0.78 | a | 1.30 | 0.81 | d | 1.85 | a | 0.53 | a | 0.33 | e | 0.72 | 2.32 | 1.39 | 2.22 | a | 1.80 | e | 0.77 | f | 14.05 | a | ||||
2019 | 1.79 | d | 2.07 | c | 4.92 | e | 2.89 | 1.85 | 1.31 | 1.81 | 1.51 | a | 0.53 | 1.11 | 0.98 | f | 2.13 | j | 19.79 | b | ||||||
2020 | 1.23 | b | 1.21 | c | 1.50 | a | 0.77 | a | 0.84 | b | 0.98 | 2.59 | d | 0.41 | c | 1.76 | 0.44 | c | 1.89 | d | 1.09 | j | 13.62 | a | ||
2021 | 0.25 | e | 1.29 | c | 1.36 | b | 0.41 | c | 1.98 | e | 1.51 | f | 2.67 | e | 1.45 | b | 0.70 | c | 1.22 | a | 0.49 | c | 4.15 | o | 11.82 | b |
2022 | 1.45 | b | 0.76 | 1.20 | 1.03 | a | 0.99 | a | 1.80 | a | 2.11 | e | 3.06 | h | 1.66 | i | 1.80 | b | 1.12 | e | 2.38 | e | 14.64 | b | ||
2023 | 2.33 | f | 0.68 | S | 4.43 | g | 1.01 | 0.95 | d | 1.91 | a | 0.21 | 2.25 | e | 0.65 | s | 1.68 | c | 0.31 | d | 1.49 | f | 9.00 | d | ||
2024 | 2.42 | e | 2.10 | f | 0.00 | v | 0.22 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.42 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.45 | 1.31 | 1.47 | 1.39 | 1.36 | 0.98 | 1.88 | 1.88 | 1.45 | 1.32 | 1.26 | 1.43 | 17.00 | |||||||||||||
S.D. | 1.25 | 0.75 | 0.86 | 0.71 | 0.82 | 0.69 | 0.88 | 0.96 | 0.95 | 0.79 | 0.64 | 1.00 | 3.01 | |||||||||||||
SKEW | 2.84 | 1.49 | 1.42 | 1.09 | 1.12 | 1.01 | 0.10 | 0.48 | 1.13 | 0.82 | 0.86 | 1.13 | 0.33 | |||||||||||||
MAX | 8.82 | 4.20 | 4.92 | 4.25 | 4.69 | 3.60 | 4.15 | 4.55 | 4.37 | 3.85 | 3.30 | 4.20 | 23.15 | |||||||||||||
MIN | 0.15 | 0.30 | 0.25 | 0.25 | 0.05 | 0.00 | 0.10 | 0.20 | 0.05 | 0.00 | 0.04 | 0.05 | 10.45 | |||||||||||||
YRS | 82 | 81 | 82 | 81 | 83 | 81 | 81 | 81 | 80 | 82 | 81 | 77 | 67 |