YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | 39.53 | l | 46.21 | 53.87 | 65.33 | 77.03 | 86.96 | c | 88.71 | 83.17 | a | 74.70 | 65.97 | 47.38 | a | 38.19 | 66.14 | a | ||||||||
1962 | 37.32 | 48.79 | 49.70 | a | 69.47 | 76.23 | 85.20 | 88.20 | a | 90.81 | 78.53 | 66.81 | 55.13 | 46.40 | a | 66.05 | ||||||||||
1963 | 34.07 | b | 46.79 | 54.81 | 67.37 | 79.94 | 85.72 | a | 91.58 | 83.94 | 80.33 | 71.48 | 53.70 | 44.42 | 66.18 | |||||||||||
1964 | 41.39 | 36.59 | 48.67 | a | 61.61 | b | 75.73 | a | 84.79 | b | 89.81 | 84.17 | a | 73.47 | 70.58 | 52.57 | b | 41.90 | a | 63.44 | ||||||
1965 | 43.23 | 44.43 | 50.27 | a | 64.27 | 72.68 | 80.00 | 87.74 | 85.43 | a | 74.50 | 73.74 | 57.33 | 43.81 | 64.79 | |||||||||||
1966 | 37.23 | 39.43 | 57.84 | 66.70 | 78.00 | 82.57 | 91.65 | 86.10 | b | 77.40 | 67.73 | a | 57.17 | 41.07 | a | 65.24 | ||||||||||
1967 | 42.26 | 50.71 | 62.87 | 67.30 | 74.70 | a | 82.26 | c | 89.52 | 83.26 | 76.37 | 69.87 | a | 57.80 | 36.80 | f | 68.81 | a | ||||||||
1968 | 40.20 | a | 49.86 | a | 53.58 | 60.28 | a | 72.46 | c | 87.40 | 87.43 | a | 82.43 | a | 81.13 | 70.52 | b | 50.73 | 38.48 | 64.54 | ||||||
1969 | 45.07 | a | 46.41 | a | 49.74 | 68.20 | 77.03 | a | 82.16 | e | 88.73 | e | 87.65 | 80.17 | a | 62.67 | a | 52.17 | 47.45 | 65.62 | ||||||
1970 | 42.32 | 52.57 | 50.58 | 60.47 | 76.33 | a | 77.22 | l | 87.72 | b | 86.74 | 77.45 | a | 63.19 | 55.10 | 46.35 | 63.53 | a | ||||||||
1971 | 44.19 | 46.85 | a | 56.58 | 63.72 | a | 74.16 | 87.20 | 89.76 | b | 84.97 | 77.63 | 63.58 | 51.10 | a | 37.75 | c | 64.79 | ||||||||
1972 | 44.72 | f | 53.93 | 65.65 | 70.27 | 76.39 | 84.62 | a | 90.71 | 82.87 | 77.37 | 65.31 | b | 42.87 | 40.37 | a | 68.21 | a | ||||||||
1973 | ----- | z | 41.32 | 48.23 | a | 58.17 | 72.19 | 82.93 | 86.58 | 86.93 | a | 79.20 | 70.94 | 56.80 | 45.52 | 66.26 | a | |||||||||
1974 | 38.19 | 46.07 | 62.19 | 66.07 | 80.65 | 90.23 | 87.77 | 83.39 | 75.80 | 63.90 | a | 51.10 | 36.65 | 65.17 | ||||||||||||
1975 | 35.16 | 40.96 | 51.58 | 60.10 | 72.03 | 84.53 | 85.97 | 85.37 | a | 74.17 | 69.48 | 52.57 | 43.29 | 62.93 | ||||||||||||
1976 | 41.80 | a | 53.55 | 55.84 | 64.63 | 74.47 | a | 85.70 | 88.26 | 85.03 | 76.47 | 64.00 | a | 52.33 | 40.52 | 65.22 | ||||||||||
1977 | 33.60 | a | 45.25 | 51.71 | 66.60 | 73.81 | 87.67 | 87.43 | a | 86.10 | a | 78.73 | 69.20 | a | 54.30 | 48.29 | 65.22 | |||||||||
1978 | 41.03 | 42.21 | 58.03 | 66.66 | a | 71.71 | 86.93 | 90.77 | 86.52 | b | 79.48 | a | 69.61 | 51.11 | b | 35.30 | a | 64.95 | ||||||||
1979 | 33.14 | b | 40.96 | b | 52.26 | 64.23 | 70.19 | 83.07 | 89.55 | 84.06 | 82.40 | 71.84 | 44.52 | a | 45.27 | a | 63.46 | |||||||||
1980 | 41.07 | a | 47.79 | 51.75 | c | 63.37 | 71.10 | b | 88.97 | a | 92.35 | 87.00 | 80.40 | 67.20 | a | 55.48 | a | 52.52 | b | 66.58 | ||||||
1981 | 50.10 | 52.79 | 51.94 | 70.50 | 73.26 | 89.64 | b | 88.87 | 87.10 | b | 79.34 | a | 65.07 | b | 59.23 | 48.32 | c | 68.01 | ||||||||
1982 | 40.88 | e | 41.32 | i | 54.89 | d | 64.55 | a | 73.32 | c | 85.46 | d | 87.53 | a | 84.00 | a | 76.81 | c | 64.64 | c | 50.17 | a | 40.12 | f | 68.23 | b |
1983 | 41.37 | a | 45.42 | b | 52.64 | q | 59.07 | a | 71.68 | 84.72 | a | 88.26 | 86.06 | 81.07 | 65.97 | a | 53.40 | 42.34 | b | 65.40 | a | |||||
1984 | 40.20 | a | 47.67 | b | 56.00 | a | 61.73 | 80.87 | 84.13 | 89.82 | c | 85.10 | 79.43 | 57.00 | 53.30 | 41.71 | 64.75 | |||||||||
1985 | 38.52 | b | 42.21 | 54.97 | a | 66.93 | 74.93 | d | 87.80 | 89.23 | 88.61 | 74.97 | 67.11 | c | 47.57 | 43.58 | 64.70 | |||||||||
1986 | 50.71 | 51.04 | 61.84 | 65.77 | 75.90 | 84.37 | 85.32 | 88.90 | 77.36 | b | 63.97 | 51.57 | 44.58 | 66.78 | ||||||||||||
1987 | 39.27 | a | 44.54 | 53.61 | 67.23 | 72.39 | 86.60 | 89.10 | 85.00 | 79.17 | 70.84 | 51.93 | 40.61 | 65.02 | ||||||||||||
1988 | 36.45 | 47.83 | 58.93 | c | 66.80 | 73.93 | a | 83.80 | 88.32 | 82.74 | 75.10 | 72.03 | 52.97 | 43.10 | a | 65.17 | ||||||||||
1989 | 43.29 | 50.14 | 64.45 | 74.00 | 80.10 | 87.10 | a | 88.87 | a | 85.06 | 80.97 | 66.23 | 57.17 | 46.03 | 68.62 | |||||||||||
1990 | 42.16 | 46.58 | b | 58.60 | a | 66.82 | b | 74.38 | b | 90.73 | d | 87.16 | 83.55 | 80.97 | 69.87 | 54.47 | 38.65 | 66.16 | ||||||||
1991 | 37.19 | 50.29 | 53.50 | a | 66.77 | 76.65 | 83.73 | 87.31 | b | 86.42 | 78.73 | 71.39 | 48.86 | b | 40.68 | 65.13 | ||||||||||
1992 | 37.42 | 47.45 | 59.69 | b | 72.33 | 73.23 | 84.57 | 86.97 | 85.32 | 81.10 | 71.77 | 48.47 | 38.93 | b | 65.60 | |||||||||||
1993 | 43.23 | 48.50 | 57.45 | 69.17 | 76.81 | 85.73 | 91.33 | a | 84.35 | 81.43 | 66.66 | b | 53.00 | 47.55 | 67.10 | |||||||||||
1994 | 51.34 | b | 49.89 | 61.97 | a | 68.53 | 77.38 | e | 92.62 | d | 92.72 | b | 89.58 | 79.15 | d | 67.59 | b | 50.29 | b | 47.29 | 69.03 | |||||
1995 | 42.19 | 54.86 | 58.63 | a | 62.71 | b | 72.10 | a | 83.38 | a | 89.43 | a | 90.06 | 79.66 | a | 71.32 | c | 59.54 | b | 47.79 | c | 67.64 | ||||
1996 | 46.65 | 54.52 | 59.16 | 70.86 | a | 83.87 | 88.30 | 90.71 | 87.45 | 77.59 | a | 66.40 | a | 54.50 | 46.84 | 68.90 | ||||||||||
1997 | 39.23 | 47.54 | 64.32 | 62.97 | a | 77.13 | 85.27 | 89.30 | a | 85.48 | 81.93 | a | 67.81 | 52.30 | 38.87 | 66.01 | ||||||||||
1998 | 45.48 | 44.79 | 56.73 | a | 64.33 | 78.74 | 87.23 | 89.19 | 88.10 | b | 85.28 | a | 67.00 | 55.77 | 47.84 | 67.54 | ||||||||||
1999 | 50.97 | a | 55.21 | 62.29 | 64.79 | a | 73.81 | 84.60 | 85.94 | 82.70 | a | 78.67 | 73.74 | 63.80 | 45.74 | 68.52 | ||||||||||
2000 | 50.16 | 54.97 | 56.71 | 70.87 | 82.71 | 87.33 | 91.48 | 89.48 | 84.37 | 64.23 | 46.17 | 47.52 | 68.83 | |||||||||||||
2001 | 42.03 | 51.39 | 57.90 | 71.10 | 81.26 | 90.34 | a | 90.45 | 85.97 | a | 83.77 | 73.29 | 57.10 | a | 43.87 | 69.04 | ||||||||||
2002 | 43.26 | 52.04 | 60.06 | 74.73 | 80.97 | 92.00 | 91.17 | a | 87.97 | a | 77.33 | 65.42 | 53.57 | 41.29 | 68.32 | |||||||||||
2003 | 52.32 | 48.82 | 56.81 | 68.17 | 79.42 | 86.17 | 94.80 | a | 88.10 | 80.03 | 71.47 | a | 53.28 | a | 46.52 | 68.82 | ||||||||||
2004 | 44.55 | 43.00 | a | 63.77 | a | 62.59 | a | 76.97 | a | 86.67 | c | 89.03 | 85.20 | a | 77.30 | 65.97 | 50.86 | b | 43.40 | a | 65.77 | |||||
2005 | 49.47 | a | 47.29 | 52.87 | a | 66.20 | 76.45 | 85.43 | 92.79 | c | 85.31 | b | 80.97 | a | 66.96 | d | 58.50 | b | 47.81 | 67.50 | ||||||
2006 | 47.83 | b | 53.18 | 55.10 | a | 70.72 | a | 80.46 | c | 88.89 | b | 87.93 | c | 82.22 | d | 74.03 | 64.38 | b | 57.75 | f | 41.93 | a | 67.88 | a | ||
2007 | 36.90 | b | 44.93 | 60.71 | 64.86 | a | 73.19 | e | 86.93 | c | 89.77 | a | 89.41 | d | 80.77 | d | 70.27 | a | 58.64 | b | 41.00 | b | 66.45 | |||
2008 | 37.57 | a | 47.17 | f | 59.93 | d | 66.04 | e | 72.61 | h | 89.23 | h | 86.83 | b | 86.87 | h | 79.71 | i | 68.52 | h | 55.83 | 43.42 | 58.27 | f | ||
2009 | 44.57 | a | 53.67 | a | 59.42 | 65.68 | b | 78.23 | a | 80.24 | a | 90.58 | 87.48 | 77.21 | b | 64.35 | 56.67 | 37.97 | 66.34 | |||||||
2010 | 39.10 | 41.14 | 56.29 | 66.37 | 74.45 | 88.17 | a | 89.10 | 86.42 | 83.50 | 69.06 | 52.50 | 47.77 | 66.16 | ||||||||||||
2011 | 39.13 | 45.82 | 61.77 | 67.83 | 71.38 | e | 89.10 | 90.87 | a | 90.00 | 78.55 | a | 66.10 | a | 52.40 | 37.19 | 65.85 | |||||||||
2012 | 44.32 | 47.00 | 60.74 | 70.93 | 79.10 | 90.90 | 87.77 | 88.32 | 80.43 | 72.43 | a | 59.28 | a | 42.55 | 68.65 | |||||||||||
2013 | 36.97 | a | 45.29 | 61.29 | 67.40 | 76.43 | a | 90.77 | 87.39 | 85.03 | 76.60 | 65.58 | 51.50 | b | 41.16 | 65.45 | ||||||||||
2014 | 48.82 | c | 53.64 | 59.52 | 67.07 | a | 75.00 | a | 87.73 | 87.90 | 82.50 | a | 80.43 | 70.18 | c | 55.72 | a | 45.33 | a | 67.82 | ||||||
2015 | 43.42 | 52.74 | a | 63.07 | a | 65.96 | c | 69.81 | 86.20 | 84.45 | 87.45 | 82.28 | e | 68.72 | b | 52.11 | c | 42.79 | b | 66.58 | ||||||
2016 | 39.52 | b | 53.48 | 62.77 | 65.57 | 74.31 | b | 90.27 | 92.60 | a | 81.84 | 79.30 | 73.24 | b | 54.79 | b | 47.39 | 67.92 | ||||||||
2017 | 43.77 | 54.00 | 65.42 | 66.40 | 74.67 | a | 90.87 | 89.71 | 85.65 | 80.20 | 70.10 | 63.64 | b | 52.38 | b | 69.73 | ||||||||||
2018 | 51.57 | a | 53.37 | a | 59.97 | a | 71.47 | 80.19 | 90.23 | 90.56 | d | 87.83 | a | 83.30 | 64.80 | a | 54.14 | b | 44.86 | c | 69.36 | |||||
2019 | 40.81 | 46.52 | a | 57.39 | 68.07 | 69.68 | 84.14 | a | 91.00 | e | 90.85 | d | 82.83 | a | 67.61 | c | 55.07 | b | 43.61 | c | 66.46 | |||||
2020 | 42.57 | a | 48.48 | 59.32 | c | 68.21 | b | 81.88 | e | 89.32 | b | 91.86 | c | 93.75 | k | 82.00 | h | 76.20 | f | 57.17 | l | 41.48 | d | 65.39 | d | |
2021 | 43.32 | i | 46.87 | e | 57.32 | f | 69.56 | n | 82.00 | v | 89.60 | j | 89.30 | a | 87.67 | d | 82.44 | c | 67.40 | f | 59.46 | f | 47.45 | b | 70.75 | g |
2022 | 45.48 | b | 46.00 | e | 59.04 | d | 70.54 | d | 81.64 | c | 86.26 | c | 90.10 | b | 84.72 | b | 81.81 | c | 63.85 | d | 49.50 | j | 45.96 | g | 70.95 | b |
2023 | 40.57 | h | 44.88 | b | 50.48 | h | 68.00 | f | 75.36 | i | 85.04 | f | 95.62 | e | 87.87 | h | 81.74 | g | ----- | z | ----- | z | 43.24 | b | 61.25 | i |
2024 | 39.73 | a | 49.56 | b | 57.15 | d | 65.23 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.81 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.23 | 48.06 | 57.41 | 66.52 | 75.93 | 86.55 | 89.34 | 86.02 | 79.20 | 67.83 | 53.64 | 43.60 | 66.48 | |||||||||||||
S.D. | 4.79 | 4.37 | 4.46 | 3.52 | 3.51 | 2.87 | 2.14 | 2.30 | 2.75 | 3.39 | 4.04 | 3.79 | 1.70 | |||||||||||||
SKEW | 0.36 | -0.24 | -0.19 | -0.10 | 0.29 | -0.00 | 0.42 | 0.20 | -0.09 | -0.32 | -0.04 | 0.00 | 0.12 | |||||||||||||
MAX | 52.32 | 55.21 | 65.65 | 74.73 | 83.87 | 92.62 | 95.62 | 90.85 | 85.28 | 73.74 | 63.80 | 52.52 | 69.73 | |||||||||||||
MIN | 33.14 | 36.59 | 48.23 | 58.17 | 69.68 | 80.00 | 84.45 | 81.84 | 73.47 | 57.00 | 42.87 | 35.30 | 62.93 | |||||||||||||
YRS | 59 | 62 | 61 | 61 | 60 | 59 | 63 | 60 | 60 | 59 | 58 | 60 | 50 |