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 | 91.10 | 94.65 | 85.53 | 86.13 | 76.67 | 71.68 | 84.29 | f | ||||||
1951 | 59.81 | 61.93 | 65.68 | 67.87 | 77.32 | 83.70 | 94.55 | 92.06 | 93.63 | 77.90 | 66.97 | 56.61 | 74.84 | |||||||||||||
1952 | 55.81 | 60.69 | 55.90 | 67.70 | 82.19 | 80.07 | 94.03 | 94.65 | 92.97 | 88.00 | 62.77 | 59.03 | 74.48 | |||||||||||||
1953 | 66.94 | 63.79 | 64.94 | 66.50 | 70.58 | 83.69 | a | 94.87 | 92.32 | 91.90 | 79.65 | 71.13 | 63.23 | 75.79 | ||||||||||||
1954 | 61.16 | 69.18 | 60.97 | 73.40 | 78.32 | 83.79 | a | 94.13 | 88.97 | 90.73 | 80.81 | 73.38 | a | 61.71 | 76.38 | |||||||||||
1955 | 54.03 | 59.41 | a | 66.77 | 70.27 | 72.58 | 84.07 | 89.77 | 93.55 | 90.47 | 81.48 | 67.40 | 62.19 | 74.33 | ||||||||||||
1956 | 62.94 | 57.03 | 69.77 | 67.21 | a | 76.23 | 88.87 | 92.48 | 90.81 | 94.90 | 76.16 | 70.37 | 64.68 | 75.95 | ||||||||||||
1957 | 55.03 | 68.00 | 65.52 | 68.83 | 69.80 | a | 88.70 | 96.00 | 91.68 | 88.13 | 71.19 | 62.90 | 65.58 | 74.28 | ||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 66.68 | 58.93 | 71.65 | 76.10 | a | 75.26 | 89.87 | 96.84 | 91.61 | 85.10 | 80.55 | 71.37 | 62.06 | 77.17 | ||||||||||||
1960 | 57.23 | 59.41 | 70.65 | 75.27 | 78.47 | a | 92.33 | 96.23 | 94.23 | a | 91.57 | 78.65 | 68.17 | 62.90 | 77.09 | |||||||||||
1961 | 65.61 | 66.93 | 65.39 | 75.00 | 75.06 | 91.20 | 93.93 | a | 93.68 | 85.40 | 78.16 | 65.57 | 60.77 | 76.39 | ||||||||||||
1962 | 61.77 | a | 59.61 | 60.16 | 77.97 | 73.74 | 85.83 | 93.23 | 98.39 | 91.21 | a | 80.68 | 73.30 | 66.81 | 76.89 | |||||||||||
1963 | 59.38 | g | 70.93 | a | 63.97 | 66.80 | 77.60 | a | 80.00 | 94.32 | 91.94 | 90.40 | 79.84 | 67.40 | 65.52 | 77.16 | a | |||||||||
1964 | 59.10 | 61.14 | 61.90 | 66.50 | 75.68 | 84.57 | 94.97 | 91.39 | 88.13 | 84.67 | a | 63.23 | 60.77 | 74.34 | ||||||||||||
1965 | 62.26 | ----- | z | 60.97 | 69.27 | 74.43 | a | 76.93 | b | 91.74 | 94.45 | ----- | z | 84.81 | 67.53 | 58.74 | 74.11 | b | ||||||||
1966 | 59.60 | a | 58.36 | 69.16 | 74.60 | 78.21 | c | 86.17 | 92.77 | 94.10 | 87.80 | 79.42 | 69.90 | ----- | z | 77.28 | a | |||||||||
1967 | 62.58 | 66.93 | 66.19 | 59.73 | 76.40 | a | 80.10 | 94.68 | 96.87 | 85.55 | a | 83.71 | 73.34 | a | 56.87 | 75.25 | ||||||||||
1968 | 61.42 | 68.79 | 66.52 | 70.72 | a | 77.13 | 85.33 | 91.61 | 88.39 | 87.73 | 79.55 | 69.55 | a | 60.52 | 75.61 | |||||||||||
1969 | 61.81 | 55.64 | 64.23 | a | 69.63 | 79.00 | a | 77.03 | 91.87 | 96.71 | 91.53 | 75.52 | 66.90 | 64.61 | 74.54 | |||||||||||
1970 | 61.45 | 65.79 | 64.97 | a | 67.67 | 80.52 | 87.93 | 95.94 | 95.35 | 87.50 | 76.69 | b | 70.60 | 60.06 | 76.21 | |||||||||||
1971 | 64.00 | 64.18 | 69.68 | 68.10 | 70.71 | 84.97 | 94.57 | a | 93.68 | 88.97 | 74.48 | 67.97 | 55.10 | a | 74.70 | |||||||||||
1972 | 64.77 | 68.90 | 78.35 | 75.80 | 79.42 | 86.10 | 96.10 | 90.55 | 85.43 | 72.29 | 64.60 | 59.42 | 76.81 | |||||||||||||
1973 | 57.03 | 59.32 | 56.26 | 68.47 | 80.45 | 90.00 | a | 93.23 | 93.19 | 86.33 | 80.93 | a | 66.27 | 65.35 | 74.74 | |||||||||||
1974 | 60.10 | 64.64 | 66.97 | 73.40 | 76.94 | 91.10 | 91.29 | 91.84 | 90.30 | 76.16 | 69.03 | 60.42 | 76.02 | |||||||||||||
1975 | 64.06 | 61.89 | 61.35 | 61.57 | 78.19 | 83.90 | 92.77 | 93.00 | 89.27 | 76.42 | 70.27 | 64.13 | 74.74 | |||||||||||||
1976 | 65.06 | 63.10 | 63.84 | 67.28 | a | 80.03 | 88.77 | 91.10 | 90.53 | a | 80.50 | 78.55 | 71.79 | a | 64.84 | 75.45 | ||||||||||
1977 | 60.06 | 69.75 | 61.77 | 75.27 | 70.32 | 88.47 | 95.55 | 92.58 | 87.80 | 82.55 | 75.17 | ----- | z | 78.12 | a | |||||||||||
1978 | 60.61 | 60.86 | 63.97 | a | 66.23 | 78.45 | 90.67 | 95.97 | 93.26 | 85.47 | 84.35 | 65.53 | 58.45 | 75.32 | ||||||||||||
1979 | 54.00 | 62.36 | 62.94 | 72.30 | 76.71 | 89.70 | 94.35 | 89.93 | a | 95.75 | b | 80.42 | 66.73 | 67.77 | 76.08 | |||||||||||
1980 | 60.17 | a | 65.28 | 61.87 | a | 70.53 | 69.39 | 86.43 | 96.06 | 91.55 | 88.67 | 81.32 | 72.50 | 68.23 | 76.00 | |||||||||||
1981 | 65.52 | 67.89 | 63.65 | 73.40 | 77.87 | 93.87 | 95.65 | 98.03 | 90.87 | 74.48 | 72.80 | 68.80 | a | 78.57 | ||||||||||||
1982 | 58.70 | a | 64.11 | a | 62.38 | b | 71.14 | b | 76.18 | c | 79.63 | 94.35 | 95.23 | a | 88.18 | b | 78.61 | 63.83 | 63.00 | e | 74.61 | |||||
1983 | 63.93 | a | 63.42 | b | 62.26 | 64.36 | b | 79.13 | a | 82.77 | 93.47 | a | 91.23 | 90.66 | a | 77.10 | 67.47 | 63.00 | a | 74.90 | ||||||
1984 | 63.65 | 67.00 | 71.43 | a | 71.80 | 89.00 | a | 86.28 | a | 93.00 | 92.84 | 90.76 | a | 74.66 | b | 66.25 | b | 56.03 | a | 76.89 | ||||||
1985 | ----- | z | 63.59 | a | 65.25 | c | 78.46 | b | 79.18 | c | 92.82 | b | 94.90 | 95.23 | 83.00 | c | 78.35 | 64.37 | 65.20 | a | 78.21 | a | ||||
1986 | 70.39 | c | 65.54 | b | 69.53 | a | 72.53 | 81.31 | b | 89.63 | 91.97 | a | 96.97 | 81.40 | 75.90 | a | 70.23 | 63.71 | 77.43 | |||||||
1987 | 60.60 | a | 62.88 | c | 63.53 | a | 79.52 | c | 79.60 | a | 89.63 | 89.83 | a | 92.26 | 89.73 | 80.66 | b | 65.86 | a | 58.24 | b | 76.03 | ||||
1988 | 61.90 | a | 68.04 | b | 70.71 | 73.04 | c | 80.00 | b | 86.93 | c | 94.57 | a | 93.06 | 88.93 | a | 87.23 | 69.82 | b | 60.32 | 77.88 | |||||
1989 | 59.00 | a | 63.60 | c | 73.28 | b | 80.20 | 81.07 | c | 87.14 | a | 95.87 | 91.06 | 91.17 | a | 79.47 | a | 73.47 | 67.00 | 78.53 | ||||||
1990 | 62.55 | b | 62.96 | b | 67.77 | 73.79 | b | 77.03 | b | 92.08 | d | 95.27 | a | 91.06 | 90.03 | 84.97 | b | 70.77 | 58.90 | 77.27 | ||||||
1991 | 63.17 | a | 71.57 | 59.00 | 71.00 | 75.32 | 82.66 | a | 89.70 | a | 92.03 | 90.40 | 84.70 | a | 72.10 | 60.83 | b | 76.04 | ||||||||
1992 | 60.22 | h | 65.85 | c | 63.87 | 77.63 | 82.13 | 87.08 | f | 93.35 | e | 95.67 | a | 93.37 | 80.93 | d | 68.74 | c | 59.00 | c | 78.05 | b | ||||
1993 | 59.83 | g | 59.52 | e | 71.56 | v | 76.23 | 69.80 | u | 87.97 | 87.00 | 92.64 | f | 89.89 | b | 80.57 | a | 68.59 | c | 63.74 | 76.69 | d | ||||
1994 | 67.03 | 60.75 | 68.74 | 72.00 | a | 75.94 | 92.83 | 93.42 | 95.52 | 90.93 | 77.68 | 64.00 | 62.87 | a | 76.81 | |||||||||||
1995 | ----- | z | 69.43 | 66.42 | 69.77 | 72.06 | 84.73 | 95.77 | 98.55 | 92.70 | 84.10 | 78.50 | 67.58 | 79.96 | a | |||||||||||
1996 | 65.97 | 65.97 | 68.32 | 77.93 | 81.90 | 88.60 | 95.39 | 96.16 | 89.07 | 79.90 | 71.43 | 64.87 | 78.79 | |||||||||||||
1997 | 60.19 | 62.71 | 75.35 | 73.90 | 88.52 | ----- | z | ----- | z | 96.24 | b | 92.04 | c | 77.70 | d | 70.80 | 59.71 | 75.72 | b | |||||||
1998 | 63.65 | 57.07 | 63.67 | a | 67.67 | f | 69.52 | 79.53 | 95.55 | 98.30 | a | 85.29 | b | 77.97 | 71.25 | b | 62.48 | 74.93 | a | |||||||
1999 | 65.90 | 65.32 | 63.87 | 64.37 | 77.87 | a | 85.67 | 92.07 | a | 94.00 | a | 88.83 | 85.28 | b | 76.66 | a | 65.48 | b | 77.11 | |||||||
2000 | 67.48 | 63.14 | a | 67.07 | b | 77.79 | b | 83.37 | a | 90.54 | b | 93.72 | b | 94.42 | 89.03 | 74.35 | 65.67 | 70.14 | c | 78.06 | ||||||
2001 | 58.79 | b | 59.50 | 66.25 | c | 68.76 | a | 85.63 | a | 91.03 | a | 91.61 | 96.45 | 92.75 | b | 83.40 | a | 71.41 | a | 61.71 | 77.28 | |||||
2002 | 64.00 | a | 69.35 | b | 67.30 | a | 71.77 | 78.17 | a | 89.59 | a | 93.90 | 93.87 | a | 90.87 | 75.55 | b | 70.83 | a | 61.63 | a | 77.23 | ||||
2003 | 72.07 | c | 61.19 | a | 67.35 | 65.66 | a | 78.87 | a | 83.57 | b | 96.61 | 95.29 | 93.50 | 87.33 | a | 66.63 | 62.65 | 77.56 | |||||||
2004 | 62.63 | a | 60.03 | 77.65 | 73.33 | 81.00 | 85.63 | 93.32 | 92.45 | 88.67 | 73.45 | 62.30 | 61.97 | 76.04 | ||||||||||||
2005 | 59.68 | 58.68 | 65.32 | 72.47 | 81.77 | 83.55 | a | 95.90 | 93.71 | 87.37 | 79.13 | a | 73.03 | 67.19 | 76.48 | |||||||||||
2006 | 65.16 | 68.21 | ----- | z | 68.83 | 82.61 | 92.90 | 97.20 | a | 93.77 | 89.90 | 75.94 | 74.43 | 65.81 | 79.52 | a | ||||||||||
2007 | 59.48 | 65.39 | 74.35 | 74.80 | 80.81 | 90.33 | 95.74 | ----- | z | ----- | z | 79.06 | 74.87 | 60.50 | a | 75.53 | b | |||||||||
2008 | 57.71 | 63.72 | 69.38 | b | 73.97 | 75.10 | 92.47 | 95.71 | 94.55 | 92.50 | 84.00 | a | 73.90 | 60.55 | 77.80 | |||||||||||
2009 | 66.58 | 62.25 | 68.29 | 71.33 | 84.87 | 82.37 | 97.06 | 95.42 | 93.23 | 77.65 | 73.23 | 59.19 | 77.62 | |||||||||||||
2010 | 63.61 | 61.14 | 65.13 | 68.20 | 75.45 | 85.07 | 90.87 | 93.19 | 91.70 | 74.10 | 65.07 | a | 65.06 | 74.88 | ||||||||||||
2011 | 64.16 | 59.57 | 67.39 | 72.07 | 74.81 | 85.00 | 92.23 | 96.65 | 91.77 | 81.90 | 66.50 | 60.55 | 76.05 | |||||||||||||
2012 | 67.23 | 63.00 | 66.37 | a | 74.33 | 82.83 | a | 88.33 | 93.39 | 95.94 | 92.87 | 81.81 | 73.70 | 61.10 | 78.41 | |||||||||||
2013 | 60.35 | 61.29 | 73.06 | 74.23 | 81.32 | 91.40 | 94.61 | 94.23 | 90.50 | 76.65 | 69.10 | 63.10 | 77.49 | |||||||||||||
2014 | 72.23 | 70.46 | 71.10 | 76.10 | 82.42 | 89.87 | 94.45 | 92.10 | 91.70 | 85.00 | 71.67 | 63.45 | 80.04 | |||||||||||||
2015 | 66.58 | 73.46 | 75.42 | 74.97 | 72.23 | 91.30 | 89.03 | 95.84 | 90.63 | 82.23 | 68.13 | 62.58 | 78.53 | |||||||||||||
2016 | 61.65 | 73.21 | a | 71.35 | 73.67 | 75.00 | 93.83 | 97.26 | 95.84 | 86.20 | 82.81 | 72.67 | 63.68 | 78.93 | ||||||||||||
2017 | 57.65 | 63.50 | 73.74 | 77.50 | 78.70 | a | 92.13 | 97.26 | 95.32 | 85.43 | 84.16 | 75.83 | 70.87 | 79.34 | ||||||||||||
2018 | 70.32 | 65.54 | 67.45 | 77.20 | 77.35 | 90.33 | 97.03 | 95.16 | 93.53 | 78.19 | 71.10 | 63.68 | 78.91 | |||||||||||||
2019 | 63.00 | 55.79 | 64.74 | 74.53 | 69.81 | 86.40 | 95.23 | 97.68 | 88.53 | 81.03 | 72.60 | 61.03 | 75.86 | |||||||||||||
2020 | 65.87 | 67.83 | 62.65 | 71.03 | 84.87 | 85.43 | 95.90 | 99.23 | 96.23 | 86.77 | 73.60 | 66.06 | 79.62 | |||||||||||||
2021 | 65.19 | 68.07 | 65.03 | a | 78.31 | a | 81.77 | 94.87 | 98.23 | 96.07 | a | 92.77 | 76.81 | 78.33 | 63.55 | 79.92 | ||||||||||
2022 | 66.23 | 64.93 | 71.77 | 76.87 | 83.65 | 94.47 | 95.77 | 98.77 | 91.70 | 81.97 | 66.40 | 63.29 | 79.65 | |||||||||||||
2023 | 60.19 | 58.96 | 60.71 | 75.30 | 76.65 | 81.77 | 99.52 | 96.16 | 88.23 | 84.90 | 70.80 | 68.77 | 76.83 | |||||||||||||
2024 | 63.35 | 62.66 | 63.65 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.22 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 62.62 | 63.90 | 66.53 | 72.03 | 78.05 | 87.22 | 94.15 | 94.10 | 89.66 | 79.99 | 69.82 | 62.91 | 76.71 | |||||||||||||
S.D. | 3.93 | 4.15 | 4.63 | 4.36 | 4.35 | 4.31 | 2.31 | 2.43 | 3.14 | 3.89 | 3.85 | 3.50 | 1.58 | |||||||||||||
SKEW | 0.12 | 0.21 | 0.34 | -0.42 | 0.01 | -0.35 | -0.55 | 0.00 | -0.55 | 0.04 | 0.05 | 0.23 | 0.31 | |||||||||||||
MAX | 72.23 | 73.46 | 78.35 | 80.20 | 89.00 | 94.87 | 99.52 | 99.23 | 96.23 | 88.00 | 78.50 | 71.68 | 80.04 | |||||||||||||
MIN | 54.00 | 55.64 | 55.90 | 59.73 | 69.39 | 76.93 | 87.00 | 88.39 | 80.50 | 71.19 | 62.30 | 55.10 | 74.28 | |||||||||||||
YRS | 68 | 72 | 71 | 71 | 71 | 70 | 72 | 71 | 71 | 73 | 73 | 71 | 60 |