YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.46 | r | 81.38 | d | 70.65 | 61.43 | b | 47.78 | d | 65.31 | h | |
1955 | 38.52 | b | 49.25 | 57.06 | 63.10 | 72.90 | 85.92 | d | 94.00 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.13 | f | ||||
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 | 99.32 | i | 93.00 | 82.10 | 72.35 | 54.53 | 47.94 | 69.98 | g | |||||
1962 | 43.81 | 48.18 | 57.50 | a | 76.20 | 74.48 | 88.03 | 93.58 | 93.50 | a | 87.70 | 74.55 | 61.37 | 52.97 | 70.99 | |||||||||||
1963 | 45.77 | 60.43 | 59.52 | 61.97 | 78.13 | 80.00 | 94.65 | 94.03 | 87.13 | 75.48 | 58.63 | 51.65 | 70.62 | |||||||||||||
1964 | 49.87 | a | 52.00 | 57.10 | 65.93 | 74.35 | 83.93 | 96.68 | 93.86 | b | 85.28 | a | 78.87 | 57.43 | 53.81 | 70.76 | ||||||||||
1965 | 50.94 | 58.54 | 64.83 | g | 67.79 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.09 | i | ||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 86.59 | a | ----- | z | 93.58 | 87.59 | h | 75.61 | h | 54.05 | i | 46.83 | a | 75.67 | i | |
1993 | 44.41 | d | 50.08 | d | 65.76 | b | 69.04 | c | 82.42 | e | 82.11 | c | 92.54 | c | 92.50 | a | 86.83 | g | 72.19 | d | 54.18 | b | 48.04 | d | 68.48 | a |
1994 | 52.39 | 53.33 | d | 66.94 | 69.38 | a | 78.79 | c | 91.70 | 98.11 | c | 96.21 | b | 85.25 | b | 71.03 | 47.41 | a | 48.28 | b | 71.57 | |||||
1995 | 48.27 | a | 64.19 | a | 60.23 | a | 66.15 | d | 70.48 | d | 81.81 | c | 93.57 | a | 94.16 | 88.12 | d | 76.89 | c | 68.60 | e | 53.35 | 72.15 | |||
1996 | 53.90 | a | 56.32 | a | 63.93 | a | 72.03 | a | 78.70 | a | 89.96 | c | 97.56 | f | 95.86 | c | 84.41 | h | 71.19 | e | 59.48 | e | 53.54 | c | 69.49 | b |
1997 | 48.14 | c | 55.13 | e | 68.36 | i | 67.44 | e | 84.17 | h | 87.27 | h | 90.47 | l | 95.21 | l | 84.37 | k | 72.68 | l | ----- | z | 45.73 | i | 56.90 | i |
1998 | 55.05 | i | 50.72 | j | 61.74 | d | 63.20 | e | 67.29 | j | 80.73 | h | 96.57 | c | 97.82 | i | 82.81 | i | 69.09 | i | 58.79 | k | 45.14 | j | 73.84 | i |
1999 | 52.00 | m | 54.53 | m | 63.87 | p | 59.19 | n | 75.62 | o | 86.58 | k | 95.12 | n | 92.65 | n | 83.61 | l | 77.53 | n | 64.71 | m | 51.00 | k | ----- | z |
2000 | 53.41 | n | 56.00 | l | 61.14 | j | 75.14 | p | 81.83 | m | 91.14 | i | 94.11 | l | 94.12 | n | 85.65 | m | 71.17 | m | 53.44 | n | 49.50 | q | ----- | z |
2001 | 43.89 | l | 46.14 | n | 63.06 | o | 65.11 | k | 85.95 | l | 89.56 | l | 93.46 | g | 97.48 | j | 88.44 | l | 78.48 | j | 60.29 | m | 48.44 | m | ----- | z |
2002 | 46.62 | j | 59.83 | j | 61.57 | j | 70.29 | i | 76.86 | i | 92.40 | j | 99.09 | i | 92.32 | i | 86.17 | g | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | 60.15 | k | 51.06 | k | 63.53 | l | 61.83 | l | 78.41 | n | 87.84 | k | 99.39 | c | 93.37 | d | 88.08 | d | 79.04 | d | 52.48 | a | 51.00 | b | 77.23 | f |
2004 | 49.00 | b | 49.59 | b | 70.17 | b | 70.45 | h | 79.28 | b | 89.20 | 95.35 | 91.55 | 84.48 | c | 67.52 | 51.90 | 45.77 | 70.35 | a | ||||||
2005 | 39.97 | a | 47.11 | 60.94 | 66.00 | c | 76.03 | a | 83.41 | a | 98.61 | 94.13 | a | 81.82 | b | 70.32 | c | 59.87 | 49.30 | a | 68.96 | |||||
2006 | 51.34 | b | 54.46 | 55.75 | g | 65.57 | b | 80.70 | a | 91.59 | c | 98.20 | a | 93.61 | 85.14 | a | 69.71 | 61.44 | l | 47.26 | 73.76 | b | ||||
2007 | 42.31 | b | 55.71 | 66.40 | a | 69.50 | 81.00 | 90.71 | b | 98.87 | a | 94.16 | 81.38 | a | 72.37 | a | 58.70 | 43.23 | 71.19 | |||||||
2008 | 42.68 | c | 54.00 | c | 62.31 | b | 68.45 | a | 73.07 | b | 87.72 | a | 97.21 | b | 96.48 | b | 87.39 | b | 73.33 | a | 59.27 | 45.57 | a | 70.62 | ||
2009 | 48.65 | 54.36 | 58.03 | 66.30 | 81.60 | a | 80.80 | 96.07 | a | 91.45 | 87.00 | a | 65.07 | a | 56.59 | a | 37.45 | 68.61 | ||||||||
2010 | 45.59 | b | 51.18 | 60.29 | 63.97 | 69.90 | 84.67 | 94.17 | b | 92.61 | 86.47 | 67.81 | 54.27 | 51.03 | a | 68.50 | ||||||||||
2011 | 46.04 | f | 51.61 | 58.57 | a | 64.57 | 70.71 | c | 81.17 | 93.81 | 92.45 | 85.70 | 70.74 | 54.38 | a | 43.77 | 69.77 | a | ||||||||
2012 | 50.55 | 49.79 | a | 61.27 | a | 69.20 | 79.26 | 88.59 | a | 93.87 | 94.35 | 86.66 | a | 72.37 | a | 60.17 | 45.20 | a | 70.94 | |||||||
2013 | 38.45 | 50.32 | 62.90 | a | 67.43 | 75.65 | 90.03 | 96.84 | 92.97 | 84.21 | a | 66.81 | 57.93 | b | 40.26 | 68.65 | ||||||||||
2014 | 51.35 | 57.93 | 63.68 | 70.80 | 78.87 | 89.00 | 96.13 | 90.26 | 87.27 | 76.61 | 59.53 | 51.37 | a | 72.73 | ||||||||||||
2015 | 53.23 | 63.22 | a | 69.06 | 68.33 | 73.32 | 90.50 | 89.39 | 94.39 | ----- | z | ----- | z | ----- | z | ----- | z | 75.18 | d | |||||||
2016 | ----- | z | 56.34 | 65.35 | 70.17 | 75.19 | 92.47 | 97.90 | 96.07 | d | 83.00 | 72.56 | f | 62.87 | 48.62 | e | 74.80 | b | ||||||||
2017 | 48.91 | t | 54.14 | 66.42 | 67.20 | 77.77 | 89.40 | 97.33 | a | 94.52 | 90.50 | p | ----- | z | ----- | z | ----- | z | 78.11 | e | ||||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.13 | 86.10 | a | 69.23 | 57.33 | 45.42 | 70.04 | g | ||||
2019 | 50.77 | 47.25 | 57.68 | 70.40 | 71.16 | 85.83 | 92.86 | c | 94.35 | 80.00 | 67.29 | 57.73 | 48.26 | 68.63 | ||||||||||||
2020 | 53.39 | 54.38 | 58.48 | 68.60 | 80.71 | 87.93 | 97.52 | 96.94 | 87.83 | 75.23 | 57.87 | 48.77 | 72.30 | |||||||||||||
2021 | 50.42 | 53.00 | a | 57.48 | 71.17 | 78.77 | 94.90 | 99.13 | 95.29 | 88.00 | 69.45 | 61.70 | 46.61 | 72.16 | ||||||||||||
2022 | 49.68 | 51.82 | 62.84 | 69.37 | 76.97 | 89.63 | 98.26 | 94.81 | 87.93 | 75.10 | 47.93 | 47.45 | 70.98 | |||||||||||||
2023 | 41.55 | 46.50 | 51.29 | 69.10 | 76.52 | 81.70 | 99.77 | 91.68 | 82.03 | 70.43 | a | 57.83 | 52.16 | 68.38 | ||||||||||||
2024 | 51.26 | 52.39 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.83 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.64 | 53.42 | 61.59 | 67.87 | 76.55 | 87.12 | 96.16 | 93.81 | 85.29 | 71.91 | 57.46 | 48.02 | 70.49 | |||||||||||||
S.D. | 4.66 | 4.43 | 4.32 | 3.02 | 3.64 | 4.02 | 2.54 | 1.60 | 2.53 | 3.65 | 4.46 | 3.88 | 1.48 | |||||||||||||
SKEW | -0.61 | 0.64 | -0.01 | 0.27 | -0.29 | -0.21 | -0.69 | -0.02 | -0.61 | 0.24 | -0.22 | -0.66 | -0.21 | |||||||||||||
MAX | 53.90 | 64.19 | 70.17 | 76.20 | 82.42 | 94.90 | 99.77 | 96.94 | 88.12 | 79.04 | 68.60 | 53.81 | 72.73 | |||||||||||||
MIN | 38.45 | 46.50 | 51.29 | 61.97 | 69.90 | 80.00 | 89.39 | 90.26 | 80.00 | 65.07 | 47.41 | 37.45 | 68.38 | |||||||||||||
YRS | 27 | 30 | 27 | 29 | 27 | 28 | 27 | 30 | 26 | 27 | 27 | 29 | 18 |