YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | 53.17 | p | 55.58 | 66.30 | 73.81 | 81.97 | 85.42 | 85.74 | 81.97 | 66.19 | 65.47 | 45.19 | 70.76 | b | ||||||||||
1950 | 46.23 | 53.64 | 58.23 | 69.20 | 74.55 | 85.73 | 85.81 | 87.29 | 77.43 | 78.87 | 63.33 | 55.94 | 69.69 | |||||||||||||
1951 | 46.23 | 49.11 | 55.19 | 62.73 | 74.48 | 83.17 | 90.87 | 85.42 | 82.43 | 67.77 | 53.77 | 42.94 | 66.18 | |||||||||||||
1952 | 46.48 | 47.59 | 47.68 | 63.70 | 74.68 | 83.90 | 87.19 | 87.26 | 81.93 | 76.90 | 48.73 | 43.65 | 65.81 | |||||||||||||
1953 | 50.16 | 49.71 | 56.48 | 63.63 | 68.55 | 85.97 | 89.29 | 86.35 | 85.33 | 70.77 | 58.17 | 40.42 | 67.07 | |||||||||||||
1954 | 49.52 | 57.89 | 53.03 | 71.73 | 75.39 | 84.97 | 89.39 | 84.68 | 81.57 | 73.13 | 62.73 | 46.81 | 69.24 | |||||||||||||
1955 | 40.45 | 41.89 | 56.52 | 63.37 | 71.90 | 82.53 | 86.39 | 84.19 | 83.47 | 74.35 | 57.77 | 52.29 | 66.26 | |||||||||||||
1956 | 50.77 | 42.24 | 61.00 | 62.83 | 78.23 | 88.27 | 87.71 | 84.23 | 85.67 | 70.97 | 54.17 | 47.84 | 67.83 | |||||||||||||
1957 | 45.45 | 56.00 | 54.52 | 61.63 | 67.84 | 83.53 | 86.03 | 82.29 | 81.30 | 64.65 | 49.60 | 51.52 | 65.36 | |||||||||||||
1958 | 45.74 | 51.64 | 47.32 | 61.80 | 78.74 | 87.33 | 88.61 | 87.29 | 78.23 | 68.84 | 56.63 | 55.81 | 67.33 | |||||||||||||
1959 | 50.29 | 49.25 | 57.06 | 66.90 | 74.29 | 86.63 | 90.23 | 83.10 | 79.60 | 67.55 | 56.77 | 47.16 | 67.40 | |||||||||||||
1960 | 39.90 | 41.79 | 59.35 | 67.23 | 73.52 | 86.10 | 88.45 | 88.52 | 83.00 | 65.03 | 58.03 | a | 43.81 | 66.23 | ||||||||||||
1961 | 48.87 | 49.68 | 55.00 | 65.03 | 75.55 | 88.27 | 88.68 | 83.39 | 76.43 | 67.90 | 51.20 | 41.74 | 65.98 | |||||||||||||
1962 | 41.16 | 48.43 | 50.32 | 70.33 | 73.68 | 84.17 | 87.84 | 89.16 | 79.13 | 69.58 | 59.03 | 50.13 | 66.91 | |||||||||||||
1963 | 40.94 | 51.75 | 55.94 | 65.07 | 77.55 | 84.17 | 89.39 | 81.06 | 81.83 | 72.23 | 56.63 | 49.52 | 67.17 | |||||||||||||
1964 | 43.65 | 42.03 | 49.61 | 59.97 | 75.10 | 83.67 | 88.35 | 83.26 | 77.13 | 74.35 | 53.50 | 44.87 | 64.62 | |||||||||||||
1965 | 47.13 | 46.07 | 51.94 | 63.20 | 70.52 | 78.50 | 84.84 | 84.77 | 74.40 | 73.10 | 58.60 | 47.65 | 65.06 | |||||||||||||
1966 | 43.61 | 43.86 | 60.03 | 67.27 | 78.61 | 84.03 | 90.68 | 86.29 | 78.60 | 70.74 | 61.17 | 45.61 | 67.54 | |||||||||||||
1967 | 45.97 | 53.79 | 61.42 | 64.03 | 73.10 | 81.20 | 87.23 | 82.55 | 77.63 | 71.81 | 60.63 | 39.00 | 66.53 | |||||||||||||
1968 | 42.94 | 53.28 | 55.94 | 60.57 | 72.81 | 84.70 | 86.13 | 80.84 | 79.33 | 70.68 | 52.73 | 43.00 | 65.24 | |||||||||||||
1969 | 47.23 | 48.11 | 50.35 | 66.50 | 75.65 | 82.90 | 87.90 | 87.65 | 80.40 | 64.39 | 53.77 | 50.32 | 66.26 | |||||||||||||
1970 | 45.65 | 53.32 | 51.32 | 58.73 | 75.77 | 82.77 | 87.90 | 86.61 | 76.17 | 62.87 | 58.47 | 48.71 | 65.69 | |||||||||||||
1971 | 48.97 | 49.18 | 59.55 | 63.60 | 71.03 | 85.00 | 89.55 | 82.87 | 77.03 | 62.61 | 54.37 | 42.65 | 65.53 | |||||||||||||
1972 | 49.52 | 56.38 | 65.84 | 67.50 | 75.42 | 81.47 | 89.97 | 83.90 | 78.67 | 63.10 | 49.00 | 44.61 | 67.11 | |||||||||||||
1973 | 38.14 | x | ----- | z | 45.58 | g | 58.66 | a | 74.62 | b | ----- | z | 85.81 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.03 | i |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.29 | n | ----- | z |
1975 | 45.63 | a | 44.96 | d | 54.07 | q | 58.72 | e | 70.54 | c | 82.59 | h | ----- | z | 85.33 | j | 75.48 | c | 71.71 | g | 57.17 | g | 47.18 | i | 59.07 | g |
1976 | 47.04 | c | ----- | z | ----- | z | 65.92 | d | 74.36 | c | 85.23 | 86.75 | c | 83.72 | f | 78.96 | c | ----- | z | 56.81 | d | ----- | z | 70.72 | e | |
1977 | 40.00 | 51.68 | 53.90 | b | 66.36 | b | 71.87 | a | 83.61 | b | 85.10 | 84.19 | 78.10 | 70.68 | 58.30 | 51.45 | 66.27 | |||||||||
1978 | ----- | z | 48.16 | c | 57.48 | 67.22 | c | 71.13 | 84.44 | c | 88.74 | d | 80.66 | b | 70.91 | g | 71.65 | 53.81 | c | 41.00 | b | 66.43 | b | |||
1979 | 40.16 | 47.81 | g | 53.19 | 65.04 | b | 71.29 | c | 81.04 | b | 87.52 | 83.06 | 83.48 | i | 74.32 | c | 50.25 | f | 51.42 | g | 69.45 | d | ||||
1980 | 44.03 | b | 51.96 | e | 53.13 | 64.43 | 69.67 | d | 85.07 | 89.58 | 83.52 | 80.57 | 70.77 | 60.89 | c | 56.50 | a | 67.51 | ||||||||
1981 | 53.69 | e | 55.04 | b | 52.40 | a | 70.27 | h | 72.20 | a | 85.29 | b | 85.52 | 84.58 | 76.48 | c | 66.52 | b | 62.48 | a | 51.55 | 67.79 | a | |||
1982 | 43.00 | 47.33 | a | 54.65 | 63.33 | 70.39 | 82.10 | 84.71 | 82.76 | b | 77.19 | c | 66.46 | c | 52.00 | b | 45.10 | a | 64.08 | |||||||
1983 | 45.59 | b | 47.81 | a | 52.79 | b | 59.30 | 73.33 | a | 82.27 | 87.16 | 79.52 | 74.75 | n | 62.84 | 49.53 | 42.97 | 62.10 | a | |||||||
1984 | 44.27 | a | 53.75 | a | 59.59 | b | 63.73 | d | 81.68 | 83.59 | c | 88.23 | a | 84.69 | b | 79.41 | c | 58.48 | d | 56.92 | f | 47.44 | d | 67.71 | a | |
1985 | 44.37 | a | 46.43 | 56.53 | a | 69.11 | b | 75.50 | e | 88.17 | a | 89.61 | 88.03 | a | 76.90 | 70.77 | 54.58 | d | 50.50 | e | 67.54 | |||||
1986 | 58.77 | 53.22 | a | 61.50 | a | 66.37 | c | 76.48 | b | 85.39 | b | 86.07 | a | 87.89 | c | 78.32 | b | 68.55 | b | 55.90 | 46.76 | b | 68.77 | |||
1987 | 47.30 | a | 48.57 | 53.81 | 69.57 | 73.17 | b | 86.41 | a | 87.48 | 84.00 | 80.96 | c | 73.73 | a | 56.92 | e | 45.26 | d | 67.27 | ||||||
1988 | 44.03 | a | 54.71 | a | 61.18 | c | 66.93 | 76.97 | b | 86.46 | d | 89.79 | b | 84.21 | b | 77.86 | a | 75.63 | d | 55.62 | f | 49.75 | c | 69.78 | a | |
1989 | 46.07 | b | 53.54 | 66.30 | a | 75.60 | 79.94 | 87.57 | 91.68 | 86.10 | a | 84.83 | a | 69.55 | 58.65 | d | 51.00 | p | 72.71 | a | ||||||
1990 | 46.74 | 48.75 | 56.10 | b | 67.34 | a | 72.59 | b | 90.69 | a | 88.07 | d | 85.07 | b | 82.30 | c | 72.03 | b | 58.89 | c | 42.28 | b | 67.57 | |||
1991 | 43.38 | b | 57.11 | a | 53.94 | 67.28 | a | 77.45 | b | 83.86 | b | 89.50 | a | 86.17 | b | 81.68 | b | 72.93 | a | 55.04 | b | 46.34 | b | 67.89 | ||
1992 | 42.59 | b | 51.50 | a | 58.27 | a | 71.86 | b | 71.94 | 83.08 | d | 85.56 | d | 86.48 | d | 82.19 | d | 72.41 | b | 51.59 | c | 45.19 | 66.89 | |||
1993 | 48.17 | b | 50.35 | b | 60.34 | b | 69.21 | a | 77.07 | b | 86.89 | b | 90.39 | c | 85.90 | b | 82.36 | b | 69.14 | b | 54.32 | h | 51.48 | b | 70.12 | a |
1994 | 52.00 | 52.25 | d | 61.35 | 68.17 | a | 77.11 | c | 90.39 | b | 92.10 | b | 90.00 | a | 82.80 | 67.63 | a | 54.32 | b | 51.27 | a | 69.95 | ||||
1995 | 47.31 | b | 58.69 | b | 60.55 | b | 63.17 | 70.84 | 85.07 | a | 91.45 | 91.07 | b | 81.93 | b | 74.77 | 62.96 | e | 52.96 | c | 70.06 | |||||
1996 | 52.03 | a | 58.24 | 61.55 | 71.53 | 82.84 | 89.18 | b | 92.29 | 89.13 | 76.21 | b | 68.48 | 58.86 | b | 50.84 | 70.93 | |||||||||
1997 | 45.03 | b | 51.89 | a | 65.69 | b | 64.28 | a | 79.14 | b | 84.70 | 90.55 | 88.55 | b | 83.82 | b | 70.16 | 58.47 | 44.45 | b | 68.89 | |||||
1998 | 48.35 | 45.54 | 57.29 | 61.73 | 75.84 | 85.10 | 89.58 | 89.07 | a | 85.10 | 70.90 | 59.70 | 52.23 | a | 68.37 | |||||||||||
1999 | 54.61 | 59.32 | 66.00 | a | 64.03 | 75.57 | a | 86.07 | 87.13 | 85.13 | 81.87 | 75.71 | 68.67 | 49.74 | 71.15 | |||||||||||
2000 | 53.29 | 60.43 | a | 59.47 | a | 73.45 | a | 84.19 | 89.73 | 93.06 | 89.42 | 86.41 | a | 68.42 | 50.30 | 52.77 | 71.75 | |||||||||
2001 | 46.13 | 52.14 | 61.26 | 68.87 | 81.19 | 91.07 | a | 90.23 | 87.93 | a | 85.30 | 75.16 | 59.21 | a | 48.65 | 70.59 | ||||||||||
2002 | 48.35 | 56.04 | 62.48 | 74.55 | a | 80.55 | 92.17 | 91.77 | 88.67 | a | 81.00 | 68.77 | 59.31 | a | 45.58 | 70.77 | ||||||||||
2003 | 55.16 | 50.04 | 57.84 | 67.45 | a | 80.70 | a | 88.80 | 97.00 | 89.26 | 85.00 | 76.52 | 57.23 | 53.06 | 71.50 | |||||||||||
2004 | 50.33 | a | 48.62 | 67.26 | 67.20 | 81.77 | 89.38 | a | 91.29 | 88.28 | b | 82.70 | c | 69.10 | 55.45 | a | 50.00 | a | 70.12 | |||||||
2005 | 51.13 | 50.41 | a | 55.35 | 69.46 | d | 78.74 | 86.77 | 95.61 | 87.59 | b | 85.03 | 74.16 | 63.36 | b | 51.90 | 70.79 | |||||||||
2006 | 55.00 | b | 58.36 | 56.70 | d | 73.10 | 83.77 | a | 92.23 | 90.97 | 84.16 | 77.63 | 68.52 | 62.03 | 49.61 | c | 71.01 | |||||||||
2007 | 46.32 | 51.19 | a | 64.65 | 69.63 | 77.76 | b | 90.30 | 92.94 | 88.87 | 84.03 | 74.76 | b | 66.07 | a | 46.10 | a | 71.05 | ||||||||
2008 | 44.90 | 51.18 | a | 62.80 | a | 70.17 | 75.97 | 89.33 | 89.32 | 89.77 | 83.93 | 73.55 | 62.33 | 49.50 | a | 70.23 | ||||||||||
2009 | 51.03 | 58.04 | 64.50 | c | 67.87 | 79.43 | a | 83.83 | 94.00 | 92.33 | a | 82.76 | a | 68.03 | 64.14 | a | 43.81 | 70.81 | ||||||||
2010 | 47.36 | c | 47.64 | 61.43 | c | 68.30 | 76.60 | a | 89.93 | 91.23 | 87.47 | a | 87.43 | b | 73.13 | 58.00 | b | 53.73 | a | 70.19 | ||||||
2011 | 47.31 | b | 51.70 | a | 64.76 | b | 69.86 | b | 75.00 | 91.63 | 93.16 | 91.45 | b | 83.90 | 70.97 | b | 58.14 | a | 47.10 | 70.41 | ||||||
2012 | 53.87 | 52.57 | a | 63.90 | a | 75.38 | a | 82.70 | a | 94.10 | 91.29 | 90.52 | 83.80 | 75.00 | a | ----- | z | ----- | z | 76.31 | b | |||||
2013 | 45.90 | a | ----- | z | ----- | z | 69.37 | c | 76.87 | 92.27 | 88.65 | 86.10 | 81.38 | a | 68.00 | 57.90 | a | 48.84 | 71.53 | b | ||||||
2014 | ----- | z | 56.89 | 61.00 | c | 66.60 | 75.13 | 88.93 | 90.20 | a | 84.52 | 83.21 | b | 73.52 | 60.62 | a | 48.23 | 71.71 | a | |||||||
2015 | 51.19 | e | 59.00 | 65.00 | 66.59 | a | 71.36 | c | 88.73 | 85.90 | 89.57 | a | 84.03 | 72.37 | a | 55.93 | 46.24 | b | 69.66 | |||||||
2016 | 47.14 | c | 57.93 | 64.45 | b | 67.83 | a | 76.97 | a | 92.23 | 92.52 | d | 83.97 | b | 81.23 | d | 74.55 | 58.81 | c | 51.57 | a | 70.77 | ||||
2017 | 46.00 | b | 55.31 | b | 66.06 | 68.04 | d | 75.60 | a | 91.20 | 89.83 | b | 87.21 | b | 82.07 | a | 75.16 | 66.80 | 55.10 | 71.53 | ||||||
2018 | 54.81 | 54.14 | 61.80 | a | 72.81 | d | 80.68 | 91.27 | 90.48 | 89.15 | e | 83.83 | 64.37 | d | 56.71 | b | 47.82 | c | 70.66 | |||||||
2019 | 44.03 | a | 47.78 | a | 59.52 | b | 68.43 | 69.80 | a | 86.41 | a | 93.04 | c | 90.83 | a | 83.54 | b | 70.53 | a | ----- | z | ----- | z | 71.39 | b | |
2020 | 47.93 | a | 52.45 | 60.31 | b | 68.60 | 80.76 | b | 87.96 | b | 90.90 | 93.40 | a | 84.86 | b | 75.71 | 61.93 | b | 49.46 | c | 71.19 | |||||
2021 | 49.23 | a | 50.52 | a | 58.97 | 69.69 | a | 79.38 | b | 91.03 | 89.81 | 87.27 | a | 82.80 | 69.23 | a | 63.31 | d | 50.97 | b | 70.18 | |||||
2022 | 48.77 | a | 50.93 | 61.19 | 70.57 | 80.33 | a | 88.03 | 91.16 | 84.47 | a | 82.82 | b | 67.07 | a | 53.68 | b | 47.40 | a | 68.87 | ||||||
2023 | 43.07 | a | 48.50 | b | 52.58 | 68.23 | 76.29 | 83.93 | 96.42 | 87.94 | 83.96 | b | 74.07 | a | 60.04 | b | 51.43 | a | 68.87 | |||||||
2024 | 43.80 | a | 52.82 | a | 56.03 | a | 67.84 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.12 | h |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.23 | 51.46 | 58.25 | 66.78 | 75.75 | 86.44 | 89.38 | 86.32 | 81.24 | 70.47 | 57.79 | 48.14 | 68.38 | |||||||||||||
S.D. | 4.03 | 4.49 | 4.83 | 3.89 | 3.81 | 3.36 | 2.71 | 2.94 | 3.05 | 4.03 | 4.46 | 3.99 | 2.14 | |||||||||||||
SKEW | 0.46 | -0.13 | -0.14 | -0.04 | 0.17 | 0.21 | 0.47 | 0.03 | -0.28 | -0.48 | 0.04 | -0.06 | -0.10 | |||||||||||||
MAX | 58.77 | 60.43 | 67.26 | 75.60 | 84.19 | 94.10 | 97.00 | 93.40 | 87.43 | 78.87 | 68.67 | 56.50 | 71.75 | |||||||||||||
MIN | 39.90 | 41.79 | 47.32 | 58.66 | 67.84 | 78.50 | 84.71 | 79.52 | 74.40 | 58.48 | 48.73 | 39.00 | 64.08 | |||||||||||||
YRS | 71 | 70 | 71 | 74 | 74 | 72 | 73 | 71 | 70 | 71 | 66 | 67 | 58 |