YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.00 | 0.48 | 0.55 | 0.46 | 0.90 | 2.39 | f | ||||||
1940 | 10.23 | o | 8.33 | 6.32 | 0.48 | 0.41 | 0.00 | 0.00 | 0.00 | 0.37 | 1.11 | 0.51 | 6.19 | 23.72 | a | |||||||||||
1941 | 8.58 | 7.05 | 4.99 | 4.88 | 1.07 | 0.11 | 0.03 | 0.00 | 0.00 | 1.09 | 2.00 | 8.93 | 38.73 | |||||||||||||
1942 | 6.36 | 4.27 | 2.61 | 4.16 | 1.32 | 0.12 | 0.00 | 0.00 | 0.16 | 1.24 | 4.50 | 3.09 | 27.83 | |||||||||||||
1943 | 7.93 | 2.97 | 3.89 | 1.78 | 0.09 | 0.34 | 0.00 | 0.00 | 0.00 | 1.15 | 1.02 | 2.75 | 21.92 | |||||||||||||
1944 | 3.67 | 5.79 | 0.77 | 2.76 | 1.05 | 0.45 | 0.00 | 0.00 | 0.00 | 2.99 | 5.60 | 3.67 | 26.75 | |||||||||||||
1945 | 0.65 | 4.47 | 3.93 | 0.44 | 0.94 | 0.07 | 0.00 | ----- | z | 0.04 | 2.09 | 4.48 | 7.23 | 24.34 | a | |||||||||||
1946 | 1.68 | 2.89 | 2.44 | 0.18 | 0.89 | 0.00 | 0.20 | 0.00 | 0.08 | 0.29 | 3.32 | 2.59 | 14.56 | |||||||||||||
1947 | 1.00 | 1.98 | 3.22 | 0.24 | 0.44 | 0.84 | 0.00 | 0.00 | 0.00 | 3.23 | 1.23 | 1.37 | 13.55 | |||||||||||||
1948 | 0.65 | 2.17 | 3.38 | 3.52 | 0.52 | 0.11 | 0.00 | 0.00 | 0.04 | 0.55 | 0.66 | 4.99 | 16.59 | |||||||||||||
1949 | 1.73 | 3.91 | 4.96 | 0.00 | 0.41 | 0.00 | 0.00 | 0.17 | 0.00 | n | 0.00 | c | ----- | z | ----- | z | 11.18 | c | ||||||||
1950 | ----- | z | 2.24 | d | 1.34 | 2.12 | 0.37 | 0.14 | 0.00 | 0.00 | 0.08 | 1.95 | 5.46 | 6.01 | 19.71 | a | ||||||||||
1951 | 5.11 | 2.98 | 2.84 | 0.91 | 0.98 | 0.17 | 0.12 | 0.00 | 0.28 | 1.16 | 4.15 | 11.30 | a | 30.00 | ||||||||||||
1952 | 9.31 | 2.20 | 6.21 | 0.62 | 0.45 | 1.14 | 0.03 | 0.00 | 0.15 | 0.27 | 2.66 | 11.36 | 34.40 | |||||||||||||
1953 | 4.55 | 0.09 | o | ----- | z | 3.17 | f | 0.60 | 0.56 | 0.00 | 0.53 | 0.12 | 0.67 | 3.33 | 1.04 | 11.40 | c | |||||||||
1954 | 4.18 | 2.58 | 5.03 | 1.49 | 0.06 | 0.64 | 0.10 | 0.55 | 0.08 | 0.23 | 1.96 | 4.53 | 21.43 | |||||||||||||
1955 | 5.06 | 1.37 | 0.28 | 2.50 | 0.36 | 0.07 | 0.11 | c | 0.00 | f | 0.28 | 0.21 | 2.32 | 13.81 | 26.37 | a | ||||||||||
1956 | 11.38 | c | 2.81 | a | 0.00 | 1.88 | 1.37 | a | 0.07 | 0.25 | a | 0.45 | 0.45 | 1.75 | 0.00 | 0.57 | 20.98 | |||||||||
1957 | 3.31 | a | 4.42 | 5.98 | a | 1.65 | 4.10 | 0.08 | 0.00 | 0.08 | 1.08 | 3.17 | 1.78 | 3.88 | 29.53 | |||||||||||
1958 | 6.23 | a | 10.79 | a | 9.38 | 5.83 | 0.68 | 0.71 | 0.38 | 0.00 | 0.18 | 0.27 | 0.50 | 1.89 | 36.84 | |||||||||||
1959 | 5.07 | 5.64 | 0.64 | 0.42 | 0.36 | 0.00 | 0.00 | 0.21 | 3.66 | 0.40 | 0.00 | 1.97 | 18.37 | |||||||||||||
1960 | 5.29 | 4.66 | 1.90 | 1.27 | 0.71 | 0.00 | 0.00 | 0.00 | 0.00 | 0.88 | 5.12 | 1.70 | 21.53 | |||||||||||||
1961 | 2.98 | a | 1.89 | 3.25 | e | 1.06 | 1.73 | 0.22 | 0.00 | 0.10 | 0.57 | 0.12 | 3.66 | 3.18 | a | 18.76 | ||||||||||
1962 | 2.09 | 8.64 | 3.52 | 0.82 | 0.24 | 0.00 | 0.00 | 0.29 | a | 0.51 | 10.97 | 0.60 | 3.57 | b | 31.25 | |||||||||||
1963 | 3.44 | 3.65 | 4.33 | 5.08 | c | 0.64 | 0.00 | 0.00 | 0.03 | 0.09 | 2.48 | 4.00 | 1.04 | 24.78 | ||||||||||||
1964 | 5.32 | 0.52 | 2.46 | 0.23 | 0.47 | 0.58 | 0.00 | 0.00 | 0.00 | 1.89 | 3.11 | 7.50 | b | 22.08 | ||||||||||||
1965 | 4.41 | 1.40 | 1.58 | a | 5.22 | 0.00 | 0.06 | 0.00 | 0.23 | 0.00 | 0.00 | 5.58 | 4.96 | 23.44 | ||||||||||||
1966 | 3.77 | 3.51 | 0.68 | 0.71 | 0.20 | 0.00 | 0.12 | 0.27 | 0.25 | 0.00 | 5.18 | 3.62 | 18.31 | |||||||||||||
1967 | 10.44 | 0.25 | 6.18 | 7.43 | 0.25 | 1.44 | 0.00 | 0.00 | 0.00 | 0.76 | 2.13 | 2.89 | 31.77 | |||||||||||||
1968 | 6.19 | 2.62 | 5.78 | 0.61 | 0.24 | 0.00 | 0.00 | 0.28 | 0.00 | 0.65 | 2.69 | 5.90 | 24.96 | |||||||||||||
1969 | 8.06 | 8.68 | 2.07 | 2.76 | 0.06 | 0.40 | 0.00 | 0.00 | 0.21 | 1.73 | 0.76 | 4.55 | 29.28 | |||||||||||||
1970 | 8.49 | 2.31 | 2.04 | 0.32 | 0.27 | 0.21 | 0.00 | 0.00 | 0.00 | 0.90 | 8.41 | 7.67 | 30.62 | |||||||||||||
1971 | 1.61 | 0.76 | 3.49 | 1.51 | 0.53 | 0.08 | 0.28 | 0.36 | 0.40 | 0.23 | 2.29 | a | 5.10 | a | 16.64 | |||||||||||
1972 | 1.27 | 1.33 | 0.19 | 1.25 | 0.11 | 0.28 | 0.00 | 0.00 | 0.98 | 6.90 | 6.49 | 3.17 | 21.97 | |||||||||||||
1973 | 8.78 | 7.33 | ----- | z | 0.23 | 0.21 | 0.05 | 0.00 | 0.09 | 0.62 | 3.04 | 9.50 | 6.32 | 36.17 | a | |||||||||||
1974 | 4.87 | 2.16 | 7.20 | 3.22 | 0.01 | 0.50 | 1.01 | 0.13 | 0.00 | 1.36 | 0.64 | 3.64 | 24.74 | |||||||||||||
1975 | 2.95 | 4.88 | 7.11 | 2.14 | 0.10 | 0.28 | 0.52 | 0.59 | 0.02 | 4.49 | 0.85 | 0.69 | 24.62 | |||||||||||||
1976 | 0.52 | 2.54 | 1.13 | 2.04 | 0.13 | 0.04 | 0.14 | 1.56 | 0.59 | 0.30 | 1.73 | 2.41 | 13.13 | |||||||||||||
1977 | 2.26 | 1.31 | 3.15 | 0.20 | 1.23 | 0.00 | 0.16 | 0.27 | 1.59 | 0.47 | 3.37 | 5.60 | 19.61 | |||||||||||||
1978 | 9.01 | 5.62 | 5.58 | 4.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 3.04 | 0.83 | 28.63 | |||||||||||||
1979 | 8.11 | 6.27 | 4.83 | 0.89 | 0.85 | 0.00 | 0.29 | 0.13 | 0.00 | 3.23 | 3.97 | 5.76 | 34.33 | |||||||||||||
1980 | 5.40 | 7.49 | 1.90 | 1.88 | 0.32 | 0.03 | 0.07 | 0.05 | 0.18 | 0.18 | 0.65 | 2.44 | 20.59 | |||||||||||||
1981 | 7.48 | 2.42 | 4.71 | 0.24 | 0.33 | 0.00 | 0.00 | 0.42 | 0.37 | 3.98 | 7.08 | 6.00 | 33.03 | |||||||||||||
1982 | 12.01 | 5.11 | 7.91 | 4.98 | v | 0.00 | 0.42 | 0.00 | 0.15 | 1.73 | 3.82 | a | 7.03 | 5.41 | 43.59 | a | ||||||||||
1983 | 8.98 | 9.14 | a | 13.05 | a | 3.33 | 0.89 | a | 0.03 | b | 0.00 | 0.14 | 0.80 | 1.12 | 8.07 | c | 9.46 | 55.01 | ||||||||
1984 | 0.26 | 2.15 | 2.12 | a | 1.09 | 0.20 | 0.46 | 0.06 | 0.33 | 0.18 | 3.81 | 9.86 | 3.20 | 23.72 | ||||||||||||
1985 | 1.02 | a | 2.90 | 5.07 | 0.13 | a | 0.32 | 0.47 | 0.31 | 0.05 | 0.40 | 1.51 | ----- | z | 3.18 | 15.36 | a | |||||||||
1986 | 4.98 | 11.48 | 7.12 | 0.50 | 0.84 | 0.09 | 0.08 | 0.25 | 2.22 | 0.42 | 0.32 | 3.10 | 31.40 | |||||||||||||
1987 | 5.10 | 3.87 | a | 4.16 | 0.95 | 0.06 | 0.08 | 0.00 | 0.10 | 0.00 | 2.13 | a | 2.63 | 6.03 | 25.11 | |||||||||||
1988 | 4.48 | 0.58 | 0.12 | 3.04 | 0.69 | 0.29 | 0.15 | q | 0.01 | 0.02 | 0.94 | 3.55 | 5.17 | 18.89 | a | |||||||||||
1989 | 2.01 | 1.30 | 7.95 | 1.83 | 0.31 | 0.10 | 0.13 | a | 0.27 | 0.95 | 2.05 | 1.95 | 0.03 | 18.88 | ||||||||||||
1990 | 4.29 | a | 2.52 | 1.33 | 0.29 | 2.82 | 0.46 | a | 0.24 | 0.14 | 0.33 | 0.55 | 0.74 | 2.58 | 16.29 | |||||||||||
1991 | 0.56 | 4.19 | 8.81 | 0.90 | 0.67 | 0.32 | 0.27 | 0.92 | 0.25 | 2.63 | b | 1.01 | o | 3.60 | b | 23.12 | a | |||||||||
1992 | 3.87 | 8.33 | g | 3.13 | k | 0.40 | s | 0.06 | t | 0.85 | v | 0.02 | 0.18 | 0.12 | 3.00 | l | 0.55 | p | 8.10 | 12.29 | g | |||||
1993 | 9.21 | k | 5.59 | i | 3.12 | j | 1.68 | 1.38 | 0.48 | a | 0.06 | 0.17 | c | 0.21 | a | 0.62 | 1.55 | d | 2.77 | r | 6.15 | d | ||||
1994 | 2.63 | o | 5.61 | 0.77 | k | 1.85 | c | 1.64 | b | 0.11 | 0.13 | 0.17 | 0.09 | 0.08 | 5.34 | a | 3.93 | 18.95 | b | |||||||
1995 | 11.38 | 0.26 | 8.71 | l | 2.35 | 1.54 | 0.78 | 0.05 | 0.05 | 0.15 | 0.07 | 0.30 | 8.25 | 25.18 | a | |||||||||||
1996 | 8.27 | 7.05 | 3.34 | 1.98 | 2.16 | 0.13 | 0.06 | 0.07 | 0.20 | 1.47 | 2.71 | 8.83 | 36.27 | |||||||||||||
1997 | 9.86 | 0.29 | 0.59 | 0.96 | 0.44 | 0.57 | 0.13 | 0.77 | 0.08 | 0.77 | 7.84 | 3.65 | 25.95 | |||||||||||||
1998 | 12.13 | 15.70 | 2.58 | 2.73 | 4.01 | 0.30 | 0.18 | 0.06 | 0.25 | 0.99 | 3.75 | 2.12 | 44.80 | |||||||||||||
1999 | 6.40 | 7.60 | 4.82 | 2.73 | 0.12 | 0.46 | 0.05 | 0.34 | 0.21 | 0.82 | 2.94 | 0.93 | 27.42 | |||||||||||||
2000 | 7.53 | 11.27 | 2.45 | 3.10 | 1.72 | 0.18 | 0.26 | 0.19 | 0.41 | 3.74 | 1.30 | 0.69 | 32.84 | |||||||||||||
2001 | 5.75 | 6.44 | 1.67 | 2.19 | 0.02 | n | 0.12 | b | 0.28 | 0.39 | 0.26 | 0.47 | ----- | z | ----- | z | 17.57 | c | ||||||||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.18 | a | 0.21 | c | 0.17 | b | 0.17 | f | 2.70 | d | 9.00 | m | 3.26 | h |
2003 | 1.34 | e | 3.46 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.25 | d | 0.22 | 2.27 | 8.81 | 12.89 | g | |||
2004 | 3.33 | 6.37 | 1.39 | 0.31 | 0.15 | 0.05 | 0.34 | 0.33 | 0.29 | 4.60 | 1.38 | 8.66 | 27.20 | |||||||||||||
2005 | 6.11 | 5.28 | 5.52 | 1.69 | 2.32 | 1.31 | 0.23 | 0.04 | 0.15 | 0.57 | 1.89 | 9.94 | 35.05 | |||||||||||||
2006 | 4.68 | 2.64 | a | 9.50 | 5.37 | 0.50 | 0.07 | 0.15 | 0.00 | a | 0.07 | 0.54 | 2.38 | 4.26 | 30.16 | |||||||||||
2007 | 1.43 | 6.03 | 0.91 | 1.96 | 0.46 | 0.10 | 0.38 | 0.06 | 0.27 | 2.17 | 1.08 | 3.72 | 18.57 | |||||||||||||
2008 | 8.64 | 3.62 | 0.35 | 0.17 | 0.11 | 0.08 | 0.17 | 0.23 | 0.07 | 0.42 | 2.66 | 2.65 | 19.17 | |||||||||||||
2009 | 1.17 | 8.76 | 2.66 | 0.41 | 1.39 | 0.15 | 0.21 | 0.17 | 0.53 | 3.05 | 0.44 | 2.66 | 21.60 | |||||||||||||
2010 | 6.40 | 3.41 | 2.33 | 3.59 | 2.06 | 0.49 | 0.00 | 0.28 | 0.30 | 1.10 | 2.95 | 7.71 | 30.62 | |||||||||||||
2011 | 1.47 | a | 4.01 | a | 6.02 | 0.64 | 1.16 | 2.11 | 0.30 | 0.37 | 0.03 | a | 2.26 | 1.76 | 0.39 | 20.52 | ||||||||||
2012 | 2.18 | 0.89 | 5.02 | a | 2.41 | 0.15 | 0.40 | a | 0.22 | 0.10 | 0.04 | 2.51 | a | 4.26 | 7.68 | 25.86 | ||||||||||
2013 | 0.39 | 0.70 | a | 1.34 | 0.76 | b | 0.24 | 0.54 | 0.03 | 0.26 | 0.85 | 0.00 | b | 1.24 | 0.23 | 6.58 | ||||||||||
2014 | 0.17 | 3.36 | 1.99 | 1.21 | 0.05 | b | 0.05 | a | 0.06 | 0.11 | a | 0.52 | 0.94 | a | 1.74 | 10.80 | a | 21.00 | ||||||||
2015 | 0.00 | 1.16 | 0.18 | 0.75 | 0.11 | 0.08 | a | 0.05 | 0.08 | 0.11 | 0.16 | 1.70 | 5.16 | a | 9.54 | |||||||||||
2016 | 6.01 | a | 1.25 | 7.24 | 0.95 | 0.15 | 0.07 | a | 0.26 | 0.13 | 0.00 | b | 4.90 | 2.11 | a | 4.34 | 27.41 | |||||||||
2017 | 10.27 | 7.92 | a | 3.61 | a | 3.27 | 0.02 | 0.24 | 0.04 | 0.17 | 0.24 | 0.46 | 3.97 | 0.16 | 30.37 | |||||||||||
2018 | 5.91 | 0.38 | 4.27 | 2.69 | 0.23 | 0.10 | 0.06 | 0.10 | 0.03 | 0.11 | 3.20 | 1.69 | 18.77 | |||||||||||||
2019 | 4.02 | 7.71 | 5.12 | 1.32 | 2.66 | 0.15 | 0.10 | b | 0.25 | 0.32 | a | 0.04 | 1.62 | 4.49 | 27.80 | |||||||||||
2020 | 3.16 | 0.00 | 2.52 | 1.46 | 0.68 | 0.10 | 0.03 | 0.30 | 0.04 | 0.05 | 0.71 | 2.36 | 11.41 | |||||||||||||
2021 | 2.88 | 2.56 | 1.83 | a | 0.06 | 0.14 | 0.13 | 0.20 | 0.07 | 0.18 | 5.29 | 0.84 | 11.31 | 25.49 | ||||||||||||
2022 | 0.66 | 0.12 | 0.86 | a | 1.84 | a | 0.19 | 0.36 | 0.50 | a | 0.17 | 0.45 | 0.20 | 1.85 | 10.54 | 17.74 | ||||||||||
2023 | 8.55 | a | 4.28 | 8.44 | 0.40 | 1.92 | 0.20 | 0.14 | 0.26 | 0.24 | 0.34 | 1.78 | 4.91 | 31.46 | ||||||||||||
2024 | 6.04 | 5.80 | 5.95 | 1.23 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.79 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 4.91 | 4.16 | 3.78 | 1.80 | 0.74 | 0.28 | 0.12 | 0.19 | 0.33 | 1.53 | 2.89 | 4.66 | 25.14 | |||||||||||||
S.D. | 3.24 | 3.11 | 2.68 | 1.55 | 0.85 | 0.36 | 0.16 | 0.24 | 0.54 | 1.80 | 2.27 | 3.16 | 8.24 | |||||||||||||
SKEW | 0.37 | 1.06 | 0.82 | 1.29 | 2.00 | 2.60 | 2.58 | 3.01 | 3.83 | 2.39 | 1.18 | 0.72 | 0.64 | |||||||||||||
MAX | 12.13 | 15.70 | 13.05 | 7.43 | 4.10 | 2.11 | 1.01 | 1.56 | 3.66 | 10.97 | 9.86 | 13.81 | 55.01 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 6.58 | |||||||||||||
YRS | 80 | 80 | 77 | 79 | 80 | 81 | 83 | 82 | 84 | 83 | 80 | 81 | 66 |