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 | 64.79 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.79 | k | |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.27 | a | ----- | z | ----- | z | 56.27 | k |
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 | 40.12 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.12 | k |
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 | 54.88 | s | 63.75 | 74.18 | 72.87 | a | 68.22 | e | 55.94 | e | 44.63 | 33.32 | 58.99 | e | ||||
2009 | 26.85 | r | 39.22 | c | 41.84 | c | 48.55 | 60.27 | 64.30 | 76.52 | b | 73.77 | 69.43 | 51.84 | 41.98 | 34.08 | 54.71 | a | ||||||||
2010 | 41.56 | 42.80 | 44.85 | 45.40 | 51.31 | 62.93 | 75.03 | 71.47 | 63.43 | 56.10 | 38.07 | 37.63 | a | 52.55 | ||||||||||||
2011 | 35.27 | 36.48 | 40.71 | 42.37 | 50.47 | 58.16 | a | 69.22 | a | 72.16 | 69.02 | 53.58 | 41.58 | 34.90 | 50.33 | |||||||||||
2012 | 35.15 | 38.64 | 40.95 | 49.98 | 58.21 | b | 61.48 | b | 72.29 | 75.95 | a | 70.69 | a | 57.61 | 46.90 | a | 36.11 | 53.66 | ||||||||
2013 | 32.48 | 39.02 | 47.58 | 51.67 | c | 59.45 | 67.42 | 79.19 | 72.81 | 65.43 | 52.34 | 45.52 | 31.26 | 53.68 | ||||||||||||
2014 | 38.52 | 42.70 | 48.28 | a | 51.88 | 60.21 | 66.12 | 79.89 | 75.58 | 69.20 | 57.16 | c | 44.26 | a | 42.68 | 56.37 | ||||||||||
2015 | 40.28 | b | 46.29 | b | 51.21 | b | 51.05 | a | 58.81 | d | 72.81 | d | 75.12 | b | 73.88 | a | 66.07 | a | 60.10 | a | 41.50 | a | 37.50 | 56.22 | ||
2016 | 37.55 | a | 45.15 | b | 46.11 | d | 55.41 | b | 59.03 | 67.97 | 73.32 | a | 74.37 | 65.32 | 51.88 | c | 46.55 | b | 33.81 | g | 56.60 | a | ||||
2017 | 31.93 | c | 40.17 | d | 45.46 | d | 47.39 | b | 58.00 | d | 66.42 | 75.07 | a | 76.31 | d | 66.80 | b | 53.05 | b | 43.38 | b | 35.15 | 53.26 | |||
2018 | 41.19 | b | 39.31 | b | 43.50 | c | 50.62 | d | 61.08 | 65.27 | b | 78.38 | f | 75.61 | c | 66.12 | a | 55.94 | 45.80 | 37.90 | 52.94 | a | ||||
2019 | 41.10 | a | 36.02 | a | 43.95 | 53.27 | 58.18 | 67.07 | 73.38 | a | 75.08 | 63.72 | 50.61 | 45.52 | a | 39.08 | a | 53.91 | ||||||||
2020 | 37.85 | a | 42.98 | b | 44.22 | b | 53.84 | a | 59.91 | b | 66.55 | 74.71 | 76.19 | d | 70.84 | b | 58.16 | c | 41.16 | e | 35.80 | a | 55.18 | |||
2021 | 37.07 | a | 39.13 | b | 43.47 | 54.11 | c | 60.02 | d | 73.17 | 80.64 | c | 75.84 | f | 67.81 | a | 53.65 | 44.03 | 36.71 | 53.62 | a | |||||
2022 | 40.57 | d | 42.57 | f | 47.96 | f | 46.40 | 54.19 | d | 64.77 | d | 78.31 | b | 78.56 | d | 70.10 | e | 59.80 | c | 39.74 | e | 34.59 | d | 56.70 | b | |
2023 | 37.63 | d | 37.24 | c | 37.18 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.43 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.88 | 40.37 | 44.78 | 50.14 | 58.26 | 65.88 | 75.49 | 74.61 | 67.48 | 55.25 | 43.37 | 36.19 | 53.91 | |||||||||||||
S.D. | 3.08 | 3.15 | 3.00 | 3.73 | 3.71 | 3.84 | 3.16 | 1.93 | 2.42 | 2.92 | 2.61 | 2.77 | 1.88 | |||||||||||||
SKEW | -0.62 | 0.46 | 0.58 | -0.54 | -0.80 | 0.19 | -0.02 | 0.18 | -0.20 | 0.09 | -0.46 | 0.55 | -0.39 | |||||||||||||
MAX | 41.56 | 46.29 | 51.21 | 55.41 | 64.79 | 73.17 | 80.64 | 78.56 | 70.84 | 60.10 | 46.90 | 42.68 | 56.37 | |||||||||||||
MIN | 31.93 | 36.02 | 40.71 | 42.37 | 50.47 | 58.16 | 69.22 | 71.47 | 63.43 | 50.61 | 38.07 | 31.26 | 50.33 | |||||||||||||
YRS | 15 | 14 | 13 | 14 | 15 | 15 | 14 | 14 | 15 | 16 | 15 | 14 | 9 |