YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 47.77 | 47.77 | k | |
1965 | 50.34 | 48.27 | 53.15 | 62.52 | 66.56 | 72.48 | 78.66 | 78.24 | 72.41 | a | 63.81 | 57.80 | 47.33 | a | 62.63 | |||||||||||
1966 | 42.56 | 44.36 | 55.56 | 62.17 | 70.60 | 76.72 | 80.00 | 76.27 | 71.85 | 63.56 | 56.70 | 46.52 | 62.24 | |||||||||||||
1967 | 46.84 | 51.79 | 59.39 | 60.18 | 66.24 | 74.82 | 78.26 | 75.61 | 72.12 | 63.03 | a | 53.78 | 42.60 | 62.05 | ||||||||||||
1968 | 45.11 | 51.71 | a | 52.02 | 56.82 | 65.79 | 75.52 | 76.27 | 72.35 | 70.40 | 62.08 | 50.17 | 41.85 | 60.01 | ||||||||||||
1969 | 47.87 | 46.43 | 48.29 | 60.16 | a | 66.20 | a | 75.80 | 80.81 | 79.83 | a | 73.82 | 63.98 | a | 52.07 | 46.95 | b | 61.85 | ||||||||
1970 | 43.90 | 50.57 | 52.18 | a | 56.83 | 68.84 | 77.50 | b | 80.57 | b | 77.98 | g | 72.57 | 60.39 | 53.53 | 48.34 | b | 60.48 | a | |||||||
1971 | 45.68 | 48.33 | a | 55.60 | a | 59.57 | 67.27 | a | 76.25 | 81.75 | a | 75.61 | 73.25 | 60.76 | 52.50 | 46.27 | a | 61.90 | ||||||||
1972 | 46.55 | 49.35 | b | 59.60 | a | 61.27 | 66.98 | a | 76.02 | a | 81.05 | 76.77 | c | 72.58 | 64.29 | 48.48 | 45.53 | a | 62.37 | |||||||
1973 | 42.70 | d | 47.18 | 49.53 | b | 56.47 | a | 67.77 | a | 76.53 | 78.57 | c | 78.55 | 74.43 | 64.31 | 53.62 | 45.56 | 61.27 | ||||||||
1974 | 47.09 | b | 46.24 | a | 56.88 | a | 60.73 | b | 69.82 | 80.30 | e | 77.05 | 75.39 | 70.73 | 62.60 | b | 50.37 | 41.79 | 61.58 | |||||||
1975 | 43.15 | a | 46.75 | 51.50 | 55.52 | 64.83 | a | 75.33 | c | 78.88 | a | 79.73 | a | 71.52 | 62.65 | 51.93 | 45.39 | 60.60 | ||||||||
1976 | 44.47 | 51.91 | a | 54.28 | a | 59.67 | 68.08 | a | 76.08 | 76.37 | a | 77.76 | 71.37 | 58.42 | 50.23 | 42.77 | 60.95 | |||||||||
1977 | 44.23 | 49.61 | 50.84 | 60.47 | 66.69 | 76.83 | 78.98 | 79.03 | 73.18 | 62.74 | 53.05 | 48.93 | a | 62.05 | ||||||||||||
1978 | 45.92 | 46.07 | 56.10 | 60.50 | 67.10 | 77.85 | 80.17 | a | 75.77 | a | 71.62 | a | 62.76 | 51.79 | a | 40.95 | 61.38 | |||||||||
1979 | 41.87 | a | 48.30 | 52.13 | 60.97 | 66.40 | 75.68 | 80.05 | 75.24 | 74.69 | a | 65.60 | 47.82 | 45.52 | a | 61.19 | ||||||||||
1980 | 46.92 | 50.40 | 51.13 | 59.18 | 65.34 | 78.43 | 81.69 | 76.08 | a | 72.71 | a | 60.02 | 49.25 | b | 48.89 | 61.67 | ||||||||||
1981 | 47.08 | 51.26 | a | 52.82 | 62.85 | 68.32 | 79.13 | 79.16 | 79.11 | 74.78 | 64.50 | b | 54.85 | 49.47 | a | 63.61 | ||||||||||
1982 | 48.18 | c | 51.62 | c | 54.82 | i | 63.27 | j | 68.21 | b | 76.02 | b | 79.34 | c | 79.21 | 75.08 | 62.71 | 53.23 | 44.95 | a | 63.85 | b | ||||
1983 | 45.34 | b | 48.88 | b | 52.08 | 54.89 | b | 65.79 | 73.45 | b | 79.15 | 77.45 | 75.59 | c | 62.89 | 51.55 | 48.43 | a | 61.29 | |||||||
1984 | 46.53 | a | 47.75 | a | 55.23 | 59.60 | d | 73.13 | 76.97 | a | 78.80 | a | 75.63 | 73.43 | 60.55 | a | 52.09 | a | 47.39 | c | 62.26 | |||||
1985 | 45.44 | 47.33 | a | 55.57 | a | 61.43 | a | 68.13 | a | 77.86 | a | 80.14 | b | 77.95 | 72.52 | f | 65.61 | d | 52.54 | b | 45.65 | a | 61.60 | a | ||
1986 | 48.45 | 52.93 | a | 57.76 | 64.17 | a | 69.39 | 76.70 | 77.12 | a | 78.32 | a | 71.28 | 61.87 | 52.66 | b | 45.10 | b | 62.98 | |||||||
1987 | 44.04 | d | 47.48 | 50.92 | a | 61.70 | b | 66.07 | a | 76.68 | 78.85 | a | 75.00 | a | 70.72 | a | 67.63 | 52.17 | c | 45.32 | a | 61.38 | ||||
1988 | 45.87 | 50.30 | a | 54.55 | 59.93 | a | 68.62 | b | 78.67 | c | 79.60 | 77.28 | a | 71.48 | b | 66.18 | 52.93 | a | 44.61 | 62.50 | ||||||
1989 | 44.63 | 53.09 | 58.62 | a | 65.69 | a | 70.61 | 77.72 | 81.08 | 76.40 | 74.03 | 63.16 | 53.60 | a | 46.17 | a | 63.73 | |||||||||
1990 | 45.08 | a | 48.78 | a | 55.81 | b | 63.29 | b | 69.35 | a | 82.32 | 78.07 | b | 75.03 | 74.66 | a | 62.80 | a | 54.79 | a | 43.94 | e | 62.83 | |||
1991 | 45.95 | 52.12 | b | 52.74 | 60.24 | a | 67.81 | b | 73.57 | 79.66 | 77.15 | 71.32 | 63.63 | a | 50.31 | a | 44.31 | b | 61.57 | |||||||
1992 | 41.76 | b | 49.84 | 52.98 | 61.57 | b | 67.90 | a | 73.85 | 76.84 | b | 75.10 | a | 72.10 | 62.58 | 46.67 | 44.85 | 60.50 | ||||||||
1993 | 47.42 | 47.42 | b | 53.30 | c | 59.25 | b | 67.82 | 75.30 | b | 75.82 | 77.71 | 73.36 | a | 64.68 | c | 54.28 | a | 55.00 | o | 63.31 | a | ||||
1994 | 46.65 | a | 51.41 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.03 | j | |
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 | 76.34 | k | 68.08 | a | 58.37 | c | 47.57 | a | 58.01 | i |
2002 | 49.60 | a | 50.92 | c | 57.27 | a | 67.89 | c | 71.45 | 82.88 | b | 82.27 | a | 80.17 | e | 76.93 | a | 65.40 | 56.87 | 47.85 | 65.79 | |||||
2003 | 53.50 | b | 53.07 | a | 55.62 | c | 63.52 | 72.77 | c | 80.50 | a | 84.60 | b | 81.36 | c | 78.25 | b | 71.16 | c | 57.10 | a | 49.88 | a | 66.78 | ||
2004 | 50.33 | b | 49.04 | f | 61.79 | c | 63.22 | n | 72.40 | b | 79.43 | b | 80.57 | b | 79.12 | a | 74.31 | d | 66.20 | a | 52.22 | c | 47.35 | d | 66.37 | b |
2005 | 50.71 | b | 51.59 | f | 55.70 | d | 63.05 | i | 72.02 | c | 79.14 | e | 84.32 | c | 78.20 | h | 77.50 | d | 66.85 | d | 57.67 | 51.04 | d | 66.11 | c | |
2006 | 50.56 | g | 54.78 | c | 57.04 | d | 65.10 | e | 74.19 | d | 82.46 | c | 82.12 | c | 77.78 | d | 71.50 | k | 65.00 | e | 59.41 | m | 46.82 | f | 69.81 | d |
2007 | 44.13 | h | 51.15 | b | 57.41 | d | 63.00 | d | 71.64 | f | 80.31 | c | 80.71 | 79.41 | d | 75.58 | d | 68.38 | g | 60.17 | i | 45.56 | 66.64 | d | ||
2008 | 47.32 | a | 51.64 | d | 55.22 | d | 62.88 | 69.17 | a | 80.52 | b | 79.38 | b | 77.86 | b | 74.40 | d | 66.17 | d | 56.92 | e | 50.54 | e | 64.33 | ||
2009 | 50.12 | f | 53.00 | a | 57.69 | d | 62.02 | b | 73.66 | c | 76.86 | i | 83.29 | c | 80.79 | g | 75.08 | j | 64.02 | e | 57.10 | y | ----- | z | 65.61 | f |
2010 | 47.42 | g | 49.21 | i | 55.31 | o | 62.29 | i | 71.04 | s | 80.72 | l | 81.83 | g | 79.96 | f | 76.85 | j | 67.86 | m | 52.96 | r | 52.06 | o | ----- | z |
2011 | 48.24 | l | 46.86 | n | 58.92 | k | 66.17 | j | 69.40 | j | 80.89 | l | 82.11 | h | 82.66 | f | 77.32 | h | 68.28 | k | 54.16 | k | 46.39 | q | ----- | z |
2012 | 51.94 | m | 52.54 | e | 56.60 | e | 67.67 | g | 73.04 | f | 81.34 | h | 79.84 | l | 81.07 | a | 73.70 | o | 68.22 | d | 59.16 | h | 47.59 | c | 61.20 | g |
2013 | 45.00 | g | 46.40 | g | 58.98 | k | 64.02 | d | 70.86 | j | 81.58 | d | 79.19 | d | 79.96 | g | 76.57 | b | 64.16 | i | 55.90 | i | 48.60 | j | 75.34 | h |
2014 | 50.46 | h | 56.39 | f | 59.77 | i | 64.62 | i | 70.84 | i | 84.23 | f | 83.18 | i | 78.74 | f | 76.95 | i | 68.50 | j | 56.93 | b | 50.82 | a | 53.87 | j |
2015 | 49.17 | b | 58.20 | a | 59.58 | 63.59 | b | 67.92 | e | 82.80 | c | 81.56 | d | 82.70 | a | 77.32 | e | 69.04 | d | 54.45 | b | 47.65 | e | 66.16 | ||
2016 | 46.48 | h | 56.21 | e | 60.30 | h | 64.23 | d | 70.69 | e | 82.92 | d | 84.29 | g | 74.69 | e | 72.13 | g | 66.84 | o | 55.88 | i | 50.92 | k | 69.75 | g |
2017 | 47.59 | h | 51.28 | l | 59.89 | l | 62.73 | o | 67.39 | v | 80.96 | q | 79.13 | 76.60 | 73.67 | 68.10 | a | 61.05 | j | 48.43 | h | 74.37 | h | |||
2018 | 50.14 | j | 52.27 | b | 56.31 | d | 64.92 | e | 71.95 | l | 79.79 | k | 80.63 | h | 77.62 | j | 75.12 | i | 62.17 | g | 52.42 | l | 48.39 | m | 57.83 | i |
2019 | 46.58 | k | 48.26 | i | 56.26 | h | 62.71 | i | 64.68 | n | 75.46 | p | 80.34 | f | 79.56 | f | 74.31 | f | 63.48 | e | 55.54 | e | 46.46 | f | 59.51 | j |
2020 | 48.26 | f | 50.00 | c | 55.48 | h | 63.11 | g | 72.04 | c | 78.95 | h | 82.45 | i | 82.94 | n | ----- | z | ----- | z | ----- | z | ----- | z | 61.02 | j |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.34 | 50.28 | 54.89 | 61.28 | 68.77 | 77.77 | 79.75 | 77.48 | 73.56 | 64.18 | 53.18 | 46.39 | 62.40 | |||||||||||||
S.D. | 2.63 | 2.87 | 3.04 | 2.86 | 2.49 | 2.82 | 2.03 | 2.15 | 2.07 | 2.63 | 2.88 | 2.49 | 1.65 | |||||||||||||
SKEW | 0.45 | 0.36 | -0.00 | -0.22 | 0.55 | 0.31 | 0.29 | 0.18 | 0.51 | 0.38 | -0.11 | -0.17 | 1.23 | |||||||||||||
MAX | 53.50 | 58.20 | 61.79 | 67.89 | 74.19 | 82.92 | 84.60 | 82.70 | 78.25 | 71.16 | 58.37 | 51.04 | 66.78 | |||||||||||||
MIN | 41.76 | 44.36 | 48.29 | 54.89 | 64.83 | 72.48 | 75.82 | 72.35 | 70.40 | 58.42 | 46.67 | 40.95 | 60.01 | |||||||||||||
YRS | 36 | 41 | 39 | 38 | 39 | 39 | 40 | 38 | 37 | 41 | 38 | 39 | 29 |