YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 69.59 | c | 60.00 | 45.31 | 58.30 | i | ||
2009 | 50.92 | 49.35 | a | 55.19 | 60.82 | 75.97 | 74.15 | c | 87.40 | 83.69 | 80.93 | 63.76 | 56.97 | 45.15 | 65.36 | |||||||||||
2010 | 48.65 | 50.93 | 54.32 | 58.70 | 64.48 | 77.68 | 86.11 | 82.87 | 79.00 | 66.40 | 53.80 | 51.16 | 64.51 | |||||||||||||
2011 | 48.47 | 46.89 | 55.68 | 61.38 | 64.69 | 75.48 | 84.66 | 86.47 | 81.03 | 69.79 | 53.28 | 46.08 | 64.49 | |||||||||||||
2012 | 52.21 | 51.45 | 56.82 | 64.48 | 73.69 | 80.45 | 85.65 | 88.11 | 82.25 | 69.27 | 59.63 | 48.08 | 67.68 | |||||||||||||
2013 | 45.13 | 49.27 | 61.74 | 65.22 | 72.60 | 83.05 | 88.81 | 82.57 | a | 78.48 | 64.24 | 56.03 | 48.52 | 66.30 | ||||||||||||
2014 | 55.15 | 56.07 | 57.63 | 63.83 | 69.92 | 80.18 | 85.61 | d | 82.18 | a | 79.70 | c | 70.76 | 57.67 | 49.10 | 67.32 | ||||||||||
2015 | 51.02 | 58.82 | 62.08 | 62.55 | 67.39 | 82.88 | 81.61 | 86.74 | 80.59 | a | 70.19 | 53.32 | 44.95 | 66.85 | ||||||||||||
2016 | 46.23 | 55.96 | a | 58.44 | 62.97 | 66.76 | 83.87 | 86.27 | 85.29 | 75.67 | 68.27 | 58.42 | 47.58 | 66.31 | ||||||||||||
2017 | 44.94 | 52.86 | 60.37 | 63.22 | 69.76 | 82.07 | a | 88.15 | 86.29 | 75.18 | 68.23 | 59.83 | i | 52.05 | 67.55 | a | ||||||||||
2018 | 52.45 | 51.50 | 55.48 | 66.75 | 70.37 | 81.47 | 89.47 | 88.11 | 81.63 | 65.55 | 55.18 | 48.50 | 67.21 | |||||||||||||
2019 | 46.89 | 43.27 | 54.21 | 65.27 | 64.05 | 80.37 | 85.05 | 85.05 | 77.23 | 62.90 | 57.90 | 45.52 | 63.97 | |||||||||||||
2020 | 49.56 | 52.43 | a | 51.27 | 60.65 | 72.87 | 79.45 | 85.48 | 88.61 | 82.58 | 71.82 | 56.43 | b | 47.72 | b | 66.57 | ||||||||||
2021 | 47.44 | 50.79 | 52.24 | 64.17 | 71.24 | 84.40 | 88.32 | 84.61 | 79.85 | 63.00 | 60.85 | 47.40 | 66.19 | |||||||||||||
2022 | 48.88 | a | 50.64 | 59.13 | d | 64.43 | c | 71.98 | 81.38 | 86.82 | 84.98 | 80.85 | ----- | z | 51.15 | g | 47.68 | 67.68 | b | |||||||
2023 | 46.28 | a | 46.50 | k | 51.90 | 63.63 | 68.69 | 74.87 | 89.35 | 82.71 | 78.12 | 69.12 | c | 55.33 | 51.84 | b | 66.53 | a | ||||||||
2024 | 49.90 | 51.38 | 53.65 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.65 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.01 | 51.44 | 56.26 | 63.20 | 69.63 | 80.12 | 86.58 | 85.22 | 79.54 | 67.53 | 56.77 | 47.91 | 66.06 | |||||||||||||
S.D. | 2.86 | 3.75 | 3.39 | 2.10 | 3.59 | 3.24 | 2.09 | 2.14 | 2.25 | 2.98 | 2.45 | 2.28 | 1.21 | |||||||||||||
SKEW | 0.41 | -0.09 | 0.28 | -0.49 | -0.11 | -0.61 | -0.57 | 0.11 | -0.59 | -0.36 | 0.08 | 0.48 | -0.47 | |||||||||||||
MAX | 55.15 | 58.82 | 62.08 | 66.75 | 75.97 | 84.40 | 89.47 | 88.61 | 82.58 | 71.82 | 60.85 | 52.05 | 67.68 | |||||||||||||
MIN | 44.94 | 43.27 | 51.27 | 58.70 | 64.05 | 74.15 | 81.61 | 82.18 | 75.18 | 62.90 | 53.28 | 44.95 | 63.97 | |||||||||||||
YRS | 16 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 16 | 12 |