YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.00 | l | 69.00 | 53.32 | 45.00 | 55.77 | i | |||
1951 | 42.08 | 48.73 | 54.75 | a | 61.52 | 72.44 | 83.05 | 84.84 | 82.82 | 76.45 | 68.73 | 51.26 | c | 49.85 | 64.71 | |||||||||||
1952 | 51.60 | 51.48 | 53.40 | 62.72 | 72.23 | 80.76 | k | 80.42 | 86.06 | 73.42 | 64.83 | h | 52.60 | 43.32 | 62.72 | b | ||||||||||
1953 | 51.43 | a | 46.46 | 59.50 | a | 62.57 | 71.97 | 83.98 | 80.95 | 78.92 | 71.30 | b | 60.79 | j | 48.95 | s | 40.11 | 64.72 | b | |||||||
1954 | 46.55 | 54.07 | ----- | z | 71.73 | s | 74.32 | q | 76.89 | g | 83.92 | m | 81.36 | i | 76.64 | w | 60.89 | q | 52.36 | b | 47.27 | 50.06 | h | |||
1955 | 41.35 | k | ----- | z | ----- | z | 67.17 | 72.34 | b | 80.35 | 79.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.90 | h | |||
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 | 49.15 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.15 | k |
1972 | ----- | z | 51.95 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.95 | k |
1973 | ----- | z | 45.27 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.27 | k | |
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 | 45.10 | a | ----- | z | 45.10 | k |
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 | 46.10 | 46.10 | k | |
1979 | 40.11 | c | 49.25 | b | 57.72 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.72 | a | ----- | z | ----- | z | 54.70 | h |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.72 | a | 46.12 | f | 48.72 | k |
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 | 47.02 | c | 53.90 | e | 59.34 | b | 68.26 | a | 80.45 | c | 79.70 | g | 88.33 | d | 85.46 | e | 80.60 | a | 64.23 | a | 48.74 | a | 41.88 | c | 65.29 | a |
2001 | 41.59 | d | 49.25 | b | 54.27 | e | 68.48 | 77.35 | a | 85.52 | 87.79 | 83.10 | 76.03 | 67.27 | a | 56.32 | 46.19 | 66.10 | ||||||||
2002 | 47.41 | c | 45.33 | h | 54.62 | a | 69.90 | 75.90 | 83.45 | b | 82.45 | 85.07 | a | 75.88 | d | 63.44 | d | 51.67 | d | 44.88 | b | 66.79 | a | |||
2003 | 46.60 | e | 48.69 | g | 58.97 | a | 68.78 | 78.30 | d | ----- | z | 83.32 | a | 83.74 | b | 75.20 | b | 66.31 | d | 56.00 | a | 48.09 | c | 66.53 | b | |
2004 | 48.71 | e | 45.97 | 58.83 | a | ----- | z | 75.23 | 81.03 | a | 81.62 | a | 79.67 | a | 73.22 | 65.84 | 51.06 | c | 45.83 | d | 64.27 | a | ||||
2005 | 48.45 | c | 48.67 | a | 54.74 | b | 64.52 | 71.60 | a | 82.05 | 82.13 | a | 79.06 | 78.12 | a | 64.32 | a | 55.95 | a | 45.90 | a | 64.63 | ||||
2006 | 48.30 | a | 48.48 | 60.10 | b | 71.27 | 79.64 | c | 83.73 | 80.48 | d | 81.52 | b | 73.02 | a | 64.77 | a | 55.98 | 44.89 | 66.02 | ||||||
2007 | 39.98 | c | 48.98 | a | 59.15 | a | 62.34 | b | 69.53 | b | 78.97 | 79.78 | a | 81.70 | a | 77.50 | a | 69.55 | 55.36 | a | 47.57 | a | 64.20 | |||
2008 | 44.03 | a | 52.90 | 58.85 | h | 67.71 | a | 76.68 | 85.92 | e | 82.26 | 79.56 | 73.68 | 66.90 | a | 57.50 | a | 53.60 | g | 68.71 | b | |||||
2009 | 50.68 | a | 57.31 | b | 61.90 | b | 68.28 | a | 76.23 | a | 83.70 | 84.27 | 84.83 | a | 74.30 | 65.50 | a | 58.21 | b | 45.87 | 67.59 | |||||
2010 | 45.23 | a | 48.09 | a | 57.10 | b | 65.22 | a | 72.80 | a | 85.34 | a | 80.16 | 85.42 | 77.70 | b | 68.82 | 57.79 | a | 50.77 | 66.21 | |||||
2011 | 47.56 | 47.88 | 62.44 | 70.64 | a | 74.23 | 86.79 | a | 85.83 | d | 87.48 | 76.15 | 67.21 | 54.57 | 40.15 | 66.74 | ||||||||||
2012 | 47.60 | 49.45 | a | 62.32 | c | 72.16 | a | 75.40 | 83.79 | b | 82.50 | a | 82.55 | c | 74.98 | 63.94 | 58.17 | d | 47.65 | e | 66.71 | |||||
2013 | 44.20 | d | 48.48 | f | 58.89 | d | 65.46 | d | 73.00 | g | 82.19 | c | 79.80 | c | 81.19 | e | 76.52 | e | 64.40 | b | 50.44 | f | 42.39 | d | 66.12 | c |
2014 | 43.18 | a | 50.31 | g | 55.07 | c | 64.73 | f | 72.63 | d | 81.41 | a | 82.26 | 82.36 | b | 71.91 | a | 67.97 | b | 49.71 | d | 49.02 | c | 65.55 | b | |
2015 | 38.92 | f | 44.33 | a | 53.40 | b | 64.04 | d | 69.40 | a | 78.32 | b | 83.23 | c | 82.73 | a | 77.98 | g | 67.11 | c | 53.85 | d | 49.09 | h | 66.27 | c |
2016 | 45.14 | b | 52.64 | d | 59.58 | e | 64.35 | d | 71.08 | a | 78.22 | e | 85.35 | g | 79.94 | f | 74.30 | c | 70.56 | e | 57.09 | h | 46.04 | d | 62.43 | c |
2017 | 44.38 | j | 55.65 | d | 63.04 | c | 67.98 | f | 71.81 | g | 81.22 | c | 82.46 | e | 78.06 | e | 75.57 | c | 64.02 | f | 56.78 | e | 46.19 | g | 70.40 | e |
2018 | 42.98 | d | 48.25 | f | 59.72 | d | 61.48 | g | 79.83 | g | 84.12 | d | 82.75 | e | 81.95 | c | 73.21 | d | 62.60 | e | 51.10 | e | 44.60 | e | 64.78 | c |
2019 | 44.64 | c | 50.62 | b | 55.06 | f | 65.22 | c | 70.27 | c | 79.96 | e | 82.31 | d | 86.65 | d | 79.44 | e | 62.72 | d | 50.96 | c | 48.26 | b | 65.55 | a |
2020 | 47.45 | b | 46.31 | 59.62 | a | 64.15 | c | 75.00 | e | 81.96 | f | 86.28 | b | 85.00 | 71.38 | b | 64.74 | b | 57.87 | c | 44.64 | b | 63.86 | a | ||
2021 | 42.96 | g | 40.68 | c | 57.26 | 61.05 | b | 70.78 | a | 79.89 | b | 79.88 | a | 79.37 | 77.69 | a | 68.25 | c | 56.36 | e | 55.96 | c | 66.11 | a | ||
2022 | 41.89 | c | 41.91 | e | 55.74 | d | 68.25 | f | 79.40 | g | 83.79 | b | 87.04 | f | 82.33 | g | 76.52 | d | 64.83 | g | 47.96 | q | 48.14 | j | 59.97 | g |
2023 | 46.67 | s | 43.82 | n | 56.42 | r | 63.11 | p | 73.19 | b | 82.12 | i | 86.77 | r | 88.57 | q | 81.58 | q | 66.79 | s | 52.85 | q | 50.25 | q | 73.19 | k |
2024 | 45.38 | r | 52.88 | q | 58.33 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.91 | 49.21 | 58.06 | 66.17 | 73.94 | 82.47 | 82.63 | 82.68 | 75.36 | 66.49 | 53.74 | 46.09 | 65.88 | |||||||||||||
S.D. | 3.30 | 4.02 | 2.91 | 3.27 | 3.09 | 2.44 | 2.44 | 2.69 | 2.42 | 2.50 | 3.49 | 3.39 | 1.13 | |||||||||||||
SKEW | -0.11 | -0.08 | -0.07 | 0.18 | 0.46 | -0.15 | 0.83 | -0.02 | 0.16 | 0.24 | -0.56 | 0.64 | -0.18 | |||||||||||||
MAX | 51.60 | 57.31 | 63.04 | 72.16 | 80.45 | 86.79 | 88.33 | 87.48 | 80.60 | 71.72 | 58.21 | 55.96 | 67.59 | |||||||||||||
MIN | 39.98 | 40.68 | 53.40 | 61.05 | 69.40 | 78.22 | 79.74 | 78.06 | 71.30 | 62.60 | 45.10 | 40.11 | 64.20 | |||||||||||||
YRS | 26 | 25 | 25 | 22 | 24 | 23 | 25 | 24 | 25 | 24 | 26 | 25 | 9 |