YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.27 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.27 | k |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | 22.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.65 | k | |
1972 | ----- | z | 1.12 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.52 | b | 49.61 | b | 36.47 | a | 28.36 | e | 4.35 | h | 35.62 | g |
1973 | 7.89 | d | 12.74 | a | ----- | z | 35.04 | c | ----- | z | ----- | z | ----- | z | 63.43 | a | 51.70 | 44.81 | 27.93 | c | 10.13 | h | 34.79 | e | ||
1974 | ----- | z | 5.73 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.36 | b | ----- | z | ----- | z | ----- | z | 44.36 | k |
1975 | ----- | z | ----- | z | 14.14 | b | 29.70 | 50.90 | 60.00 | 65.26 | 61.26 | 47.10 | a | 39.35 | e | 26.68 | k | ----- | z | 45.96 | d | |||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | 19.81 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.81 | k | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.72 | a | 52.39 | 53.90 | 50.23 | 33.71 | 29.57 | 6.68 | 39.74 | e | ||||||
2010 | -0.48 | -1.21 | 23.68 | 37.00 | 46.32 | 55.23 | 61.42 | 60.77 | 46.33 | 35.71 | 22.80 | 4.39 | 32.66 | |||||||||||||
2011 | -1.65 | 5.64 | 17.03 | 33.03 | 44.97 | 55.10 | 63.65 | 57.55 | 46.73 | 38.35 | 26.40 | 15.58 | 33.53 | |||||||||||||
2012 | 8.45 | 15.93 | 35.45 | 34.47 | 49.61 | 56.90 | 64.06 | 54.48 | 43.67 | 31.87 | 23.27 | 11.58 | 35.81 | |||||||||||||
2013 | 4.06 | 3.71 | 9.48 | 27.80 | 44.52 | 56.20 | 58.71 | 56.58 | 49.70 | 36.97 | 20.63 | 1.00 | 30.78 | |||||||||||||
2014 | -9.39 | -9.86 | 9.26 | 30.07 | 46.03 | 58.10 | 57.39 | 58.58 | 48.57 | 35.65 | 15.40 | 16.87 | 29.72 | |||||||||||||
2015 | 5.90 | -3.75 | 19.71 | 33.93 | 45.87 | 55.80 | 59.61 | 56.13 | 55.07 | 37.68 | 31.73 | 24.71 | 35.20 | |||||||||||||
2016 | 3.29 | 10.14 | 30.13 | 35.60 | 45.55 | 56.73 | 60.61 | 59.90 | 53.87 | 39.29 | 31.83 | 11.97 | 36.58 | |||||||||||||
2017 | 10.16 | 17.04 | 20.84 | 36.27 | 44.10 | 55.53 | 59.48 | 55.26 | 52.10 | 39.13 | 22.23 | 7.84 | 35.00 | |||||||||||||
2018 | 1.46 | e | -3.71 | 15.71 | 19.60 | 50.81 | 58.57 | 57.94 | 56.35 | 52.33 | 33.48 | 17.30 | 15.26 | 31.26 | ||||||||||||
2019 | 2.77 | -4.39 | 11.42 | 31.10 | 41.16 | 54.17 | 60.52 | 54.87 | 51.90 | 34.55 | 20.23 | 8.52 | 30.57 | |||||||||||||
2020 | 8.55 | 2.00 | a | 24.32 | 28.80 | 44.32 | 55.93 | 60.61 | 57.71 | 45.53 | 29.23 | 26.67 | 11.39 | 32.92 | ||||||||||||
2021 | 9.26 | -2.14 | 25.32 | 32.63 | 44.35 | 58.90 | 58.61 | 58.10 | 47.38 | a | 42.06 | 23.73 | 10.81 | 34.08 | ||||||||||||
2022 | -9.19 | -4.07 | 17.77 | 29.21 | b | 45.74 | 56.07 | a | 59.10 | 55.84 | 48.47 | 36.16 | 23.53 | 5.74 | 30.36 | |||||||||||
2023 | 10.74 | 2.07 | 13.29 | 32.10 | 46.97 | 57.13 | 55.13 | 56.84 | 52.74 | c | ----- | z | ----- | z | ----- | z | 36.33 | c | ||||||||
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.46 | 2.58 | 19.41 | 31.65 | 46.08 | 56.38 | 60.10 | 57.78 | 49.34 | 36.73 | 24.48 | 10.88 | 32.96 | |||||||||||||
S.D. | 6.43 | 7.85 | 7.14 | 4.27 | 2.64 | 1.98 | 3.63 | 2.79 | 3.27 | 3.74 | 4.80 | 6.01 | 2.28 | |||||||||||||
SKEW | -0.86 | 0.53 | 0.50 | -1.29 | 0.48 | -0.32 | -0.01 | 0.59 | -0.04 | 0.15 | -0.15 | 0.57 | 0.08 | |||||||||||||
MAX | 10.74 | 17.04 | 35.45 | 37.00 | 50.90 | 60.00 | 67.27 | 63.43 | 55.07 | 44.81 | 31.83 | 24.71 | 36.58 | |||||||||||||
MIN | -9.39 | -9.86 | 9.26 | 19.60 | 41.16 | 51.72 | 52.39 | 53.90 | 43.67 | 29.23 | 15.40 | 1.00 | 29.72 | |||||||||||||
YRS | 15 | 16 | 17 | 16 | 15 | 16 | 17 | 18 | 19 | 17 | 16 | 14 | 13 |