YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1956 | ----- | z | ----- | z | 50.92 | f | 58.30 | 65.58 | 71.70 | 83.03 | 79.55 | 76.87 | 59.10 | 53.27 | 47.19 | j | 68.42 | d | ||||||||
1957 | ----- | z | ----- | z | 52.41 | i | 58.29 | f | 63.50 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | 57.45 | a | 76.97 | a | 76.23 | 86.39 | 89.48 | 80.67 | 71.84 | 56.30 | 55.87 | 72.36 | c | |||||||
1959 | 47.55 | 45.89 | 55.17 | a | 66.23 | 62.10 | 81.57 | 92.00 | 87.97 | 71.93 | 72.87 | 64.77 | 47.46 | g | 68.00 | a | ||||||||||
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 | 70.91 | h | 74.90 | 82.97 | 86.35 | 79.59 | a | 75.55 | k | 54.24 | a | 49.74 | 71.30 | f | ||||
1964 | 44.13 | 50.00 | 52.77 | 62.77 | 68.87 | 73.03 | a | 87.94 | 85.52 | 76.03 | 72.35 | 47.00 | 40.45 | 63.41 | ||||||||||||
1965 | 40.19 | 48.82 | 53.55 | 59.23 | 65.23 | 75.70 | 85.29 | 80.13 | 72.70 | 72.42 | 51.07 | 42.74 | 62.26 | |||||||||||||
1966 | 41.65 | 43.39 | 54.74 | 66.12 | d | 76.06 | 75.00 | 85.42 | 87.52 | 78.30 | 70.16 | 51.93 | 42.94 | 64.44 | ||||||||||||
1967 | 44.71 | 49.25 | 48.61 | 47.10 | 68.35 | 75.50 | 89.97 | 91.65 | 81.43 | 69.03 | a | 54.23 | 37.26 | 63.09 | ||||||||||||
1968 | 41.55 | 49.54 | a | 55.97 | a | 59.87 | 68.93 | a | 80.03 | 90.84 | 78.06 | 77.43 | 65.97 | 47.40 | 38.97 | 62.88 | ||||||||||
1969 | 40.10 | 38.21 | 46.47 | a | 59.72 | a | 73.68 | 74.73 | 86.74 | 88.23 | a | 79.90 | 57.32 | 55.37 | 44.68 | 62.10 | ||||||||||
1970 | 41.26 | 51.61 | 49.00 | i | 52.93 | 70.16 | 78.40 | 89.42 | 89.90 | 75.78 | c | 63.06 | 49.50 | 34.74 | 63.34 | a | ||||||||||
1971 | 45.31 | e | 47.07 | 43.52 | h | 57.10 | 64.81 | 72.00 | 88.33 | d | 90.26 | 72.33 | 59.52 | 48.83 | 35.71 | 61.93 | a | |||||||||
1972 | 37.90 | 44.52 | 57.64 | f | 55.57 | 71.90 | 78.96 | c | 87.97 | 88.30 | d | 71.41 | a | 62.65 | 46.10 | 36.32 | 61.96 | a | ||||||||
1973 | 38.39 | 46.75 | 48.87 | 60.20 | 76.29 | 82.31 | a | 89.68 | 90.14 | i | 78.07 | 66.43 | h | 44.67 | 44.45 | 60.97 | b | |||||||||
1974 | 38.42 | 46.79 | 49.94 | 58.73 | 68.94 | 86.27 | 88.68 | c | 87.68 | 83.50 | 68.83 | a | 54.11 | b | 41.78 | d | 64.47 | |||||||||
1975 | 43.93 | a | 43.12 | c | 47.19 | 50.37 | 68.29 | 75.87 | 88.42 | 83.06 | 82.07 | 62.32 | 48.10 | 47.97 | a | 61.73 | ||||||||||
1976 | 46.74 | 47.17 | 48.84 | 59.30 | 75.39 | 76.30 | 87.94 | 78.16 | 80.97 | a | 68.16 | 59.53 | 50.65 | 64.93 | ||||||||||||
1977 | 37.19 | 52.50 | 48.65 | 67.47 | 60.19 | 83.07 | 87.23 | 87.68 | 74.67 | ----- | z | ----- | z | ----- | z | 66.52 | c | |||||||||
1978 | 42.67 | y | 52.38 | l | 61.06 | 55.73 | 67.68 | f | 78.23 | h | 86.71 | 84.63 | d | 72.85 | d | 75.19 | e | 48.62 | a | 37.67 | a | 65.31 | d | |||
1979 | 36.45 | 43.14 | 54.35 | 58.66 | a | 70.87 | 81.21 | a | 89.74 | 83.65 | 83.07 | 66.29 | 47.40 | 47.07 | a | 63.49 | ||||||||||
1980 | 42.39 | 50.62 | 49.29 | 62.22 | c | 67.00 | a | 74.67 | 87.77 | 85.13 | a | 78.47 | 67.52 | 52.67 | 49.10 | a | 63.90 | |||||||||
1981 | 45.29 | 46.82 | 52.50 | a | 62.07 | 69.45 | 79.27 | 88.97 | 90.13 | a | 76.86 | b | 57.26 | 51.13 | 44.20 | a | 63.66 | |||||||||
1982 | 38.03 | a | 44.25 | 48.27 | a | 54.28 | a | 67.75 | c | 76.33 | c | 84.79 | b | 87.27 | a | 70.33 | c | 62.25 | w | 43.37 | 37.71 | j | 61.47 | b | ||
1983 | 44.29 | 44.96 | a | 48.37 | a | 51.97 | 66.45 | b | 75.00 | a | 83.60 | a | 88.22 | m | 78.39 | b | 67.57 | a | 46.63 | c | 43.33 | y | 60.72 | b | ||
1984 | 44.39 | ----- | z | ----- | z | 56.13 | 71.68 | 74.28 | a | 89.74 | 89.52 | 78.14 | a | 57.64 | f | ----- | z | ----- | z | 71.98 | e | |||||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.88 | e | 92.00 | 84.94 | 68.10 | 62.81 | d | ----- | z | 43.48 | d | 72.37 | f | |||
1986 | 51.21 | b | 48.52 | c | ----- | z | ----- | z | 83.47 | p | 83.97 | 83.97 | ----- | z | ----- | z | 65.27 | p | 54.80 | e | 46.67 | a | 61.52 | f | ||
1987 | 42.75 | g | 50.30 | e | 54.76 | b | 72.17 | f | 73.86 | b | 84.18 | h | 83.92 | f | 90.65 | e | 85.65 | d | 75.12 | e | 52.31 | a | 38.93 | a | 65.20 | d |
1988 | 41.65 | h | 55.23 | c | 58.41 | b | 67.32 | e | 72.07 | d | 84.66 | a | 93.48 | d | 90.06 | 83.79 | b | 79.61 | 50.00 | a | 43.33 | a | 70.72 | a | ||
1989 | 39.45 | 37.96 | 54.68 | 67.29 | b | 69.61 | h | 80.75 | f | 90.74 | 84.22 | d | 80.20 | e | 67.62 | b | 57.52 | c | 50.21 | b | 62.99 | b | ||||
1990 | 45.08 | f | 43.55 | f | 59.61 | c | 68.70 | c | 69.03 | a | 79.07 | b | 90.07 | d | 88.89 | d | 83.74 | c | 66.11 | c | 43.54 | b | 36.80 | f | 72.08 | c |
1991 | 47.17 | b | ----- | z | ----- | z | 56.62 | d | 61.52 | h | ----- | z | ----- | z | ----- | z | ----- | z | 68.25 | c | 50.80 | e | 44.43 | c | 53.45 | g |
1992 | 46.28 | b | ----- | z | 57.87 | 64.62 | d | ----- | z | 69.89 | k | 83.47 | l | 88.05 | l | 80.75 | j | 66.96 | f | 47.53 | k | 37.22 | m | 56.25 | i | |
1993 | ----- | z | 39.53 | i | 50.82 | i | 56.33 | o | 74.36 | q | 70.53 | o | 78.20 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | 47.52 | j | 42.44 | l | 60.16 | l | 62.67 | o | 68.71 | q | 77.44 | l | 91.62 | r | 87.64 | q | 81.80 | o | 64.93 | p | 42.60 | t | 36.00 | l | ----- | z |
1995 | 41.15 | d | 58.56 | l | 48.86 | q | 58.42 | r | 65.78 | v | 72.90 | t | 81.70 | u | 85.21 | q | 79.00 | q | 66.61 | m | 57.86 | p | 44.44 | m | 41.15 | k |
1996 | 37.50 | u | 46.29 | l | 56.19 | o | 59.27 | o | 70.12 | w | ----- | z | ----- | z | ----- | z | ----- | z | 64.29 | q | 49.58 | r | 43.21 | q | ----- | z |
1997 | 41.77 | i | 47.00 | l | 53.86 | j | 55.42 | k | 76.60 | p | ----- | z | 86.43 | q | 85.07 | p | 76.87 | o | 66.25 | o | 55.36 | p | 43.38 | o | ----- | z |
1998 | 44.43 | q | 39.32 | 51.61 | 59.38 | i | 56.23 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.22 | l | 41.83 | h | 45.47 | j | ||
1999 | 43.85 | e | 39.60 | m | 51.86 | i | 53.10 | j | ----- | z | 76.73 | o | 88.56 | o | 85.69 | o | 81.47 | o | 72.76 | n | 57.10 | 48.23 | 49.72 | i | ||
2000 | 42.50 | a | 45.97 | 52.72 | b | 67.00 | l | 67.87 | 80.20 | e | ----- | z | 85.76 | n | 76.22 | g | 62.77 | 45.77 | d | 46.50 | o | 56.83 | e | |||
2001 | 43.26 | 43.36 | 54.26 | 55.43 | 76.86 | i | 76.10 | i | 84.83 | g | ----- | z | 77.93 | p | 75.12 | o | 51.67 | f | 37.95 | i | 49.08 | h | ||||
2002 | 39.93 | b | 47.50 | d | 49.45 | i | 69.10 | t | 64.11 | l | 80.12 | e | ----- | z | ----- | z | 81.00 | o | 61.24 | j | 53.71 | f | 45.56 | d | 53.28 | h |
2003 | 50.58 | g | 43.71 | 53.06 | 52.00 | 65.41 | b | 81.68 | b | ----- | z | ----- | z | 79.78 | g | 72.08 | e | 44.50 | 40.68 | c | 56.64 | d | ||||
2004 | 41.06 | 42.89 | j | 59.77 | a | 59.94 | m | 68.17 | b | 78.38 | d | 87.70 | d | 84.92 | e | 75.08 | e | 59.32 | f | 45.68 | h | 45.53 | a | 67.58 | d | |
2005 | 41.07 | c | 48.18 | 54.74 | 56.67 | 63.10 | a | 71.57 | 89.19 | ----- | z | 78.12 | n | 64.40 | k | 50.93 | a | 38.07 | a | 57.06 | c | |||||
2006 | 41.00 | 45.68 | 43.84 | 49.50 | j | 74.50 | m | 81.97 | 92.19 | e | ----- | z | 84.00 | y | 66.07 | c | 48.94 | m | 40.71 | c | 58.78 | e | ||||
2007 | 40.84 | 47.15 | a | 58.57 | c | 61.57 | 72.48 | d | 79.43 | ----- | z | 89.21 | q | 70.00 | j | 61.90 | 54.43 | 37.86 | c | 57.14 | c | |||||
2008 | 37.19 | 45.55 | 50.32 | 59.00 | f | 72.24 | f | 76.46 | d | 89.90 | 88.21 | q | 81.00 | r | 68.46 | g | 54.72 | e | 39.86 | b | 56.29 | e | ||||
2009 | 45.77 | 45.19 | a | 48.72 | b | 59.84 | k | 71.07 | p | 75.60 | o | 90.80 | p | ----- | z | 85.00 | o | 57.71 | n | 52.25 | j | 38.17 | h | 46.56 | i | |
2010 | 43.96 | d | 45.32 | c | 50.57 | h | 54.88 | m | 59.00 | q | 78.08 | q | 89.33 | v | 88.25 | o | 80.06 | n | 68.20 | p | 49.21 | k | 41.71 | g | 44.64 | j |
2011 | 42.56 | d | 40.46 | 44.52 | 54.65 | j | 63.67 | p | ----- | z | 87.00 | p | 90.25 | w | 85.73 | o | 64.56 | m | 47.81 | d | 45.07 | c | 44.08 | g | ||
2012 | 46.10 | b | 45.61 | a | 49.93 | a | 61.56 | l | 73.25 | o | 81.36 | s | 90.57 | q | 92.88 | n | ----- | z | 68.55 | k | 54.95 | h | 39.29 | 45.23 | h | |
2013 | 35.86 | b | 45.15 | a | 56.75 | g | 58.76 | m | 68.88 | n | 86.83 | x | ----- | z | ----- | z | 77.85 | q | 62.12 | n | 51.53 | k | 41.10 | a | 40.70 | i |
2014 | 51.24 | b | 48.15 | a | 55.80 | k | 62.94 | l | 72.21 | q | 79.67 | o | 94.17 | m | 87.08 | r | ----- | z | ----- | z | ----- | z | 42.65 | 47.34 | i | |
2015 | 50.13 | a | 54.26 | e | 60.76 | n | 66.93 | o | 66.31 | o | 86.67 | o | 85.95 | l | 90.36 | t | 79.94 | m | 73.87 | p | 43.95 | h | 39.50 | c | 47.96 | i |
2016 | 38.39 | 52.14 | 52.32 | 68.00 | s | 65.28 | m | 83.41 | m | ----- | z | 91.15 | r | 83.20 | y | 57.78 | v | 51.68 | h | 38.71 | g | 47.62 | i | |||
2017 | 32.68 | 44.15 | a | 53.13 | a | 56.61 | l | 76.00 | l | ----- | z | 89.50 | w | 91.25 | o | 77.87 | o | 68.18 | n | 51.00 | k | 44.41 | b | 43.59 | h | |
2018 | 48.79 | b | 45.82 | 46.79 | b | 60.12 | n | 70.94 | o | 81.08 | q | 88.17 | y | 84.83 | y | 78.14 | p | 64.00 | k | 51.20 | j | 40.55 | 45.49 | h | ||
2019 | 42.58 | 37.33 | a | 48.43 | a | 61.42 | r | 68.00 | p | 82.50 | x | ----- | z | ----- | z | ----- | z | 63.21 | l | 57.50 | p | 41.52 | h | 42.78 | i | |
2020 | 43.88 | g | 50.04 | e | 57.04 | g | 66.05 | h | 72.50 | o | 86.20 | o | 96.64 | q | 98.83 | y | ----- | z | ----- | z | ----- | z | ----- | z | 50.04 | k |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.73 | s | 90.86 | i | 92.94 | o | 85.00 | p | 74.50 | s | 45.54 | q | 37.18 | i | ----- | z |
2023 | 40.54 | e | 43.58 | i | 41.04 | h | 55.29 | m | 70.56 | o | 76.00 | s | 92.69 | r | 88.00 | t | 76.88 | v | 65.41 | n | 52.50 | r | 49.05 | i | 40.54 | k |
2024 | 48.05 | k | 46.82 | g | 51.67 | j | 59.42 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.43 | 46.37 | 52.12 | 59.08 | 69.26 | 78.13 | 88.20 | 86.33 | 77.69 | 67.06 | 51.12 | 42.96 | 63.36 | |||||||||||||
S.D. | 4.06 | 4.01 | 4.31 | 5.35 | 4.18 | 3.85 | 2.67 | 3.77 | 4.43 | 5.52 | 4.81 | 4.65 | 1.00 | |||||||||||||
SKEW | 0.14 | -0.18 | 0.20 | -0.01 | -0.01 | 0.15 | -0.27 | -0.81 | -0.24 | 0.10 | 0.51 | 0.48 | -0.12 | |||||||||||||
MAX | 51.24 | 55.23 | 61.06 | 68.70 | 76.97 | 86.27 | 93.48 | 91.65 | 85.65 | 79.61 | 64.77 | 55.87 | 64.93 | |||||||||||||
MIN | 32.68 | 37.33 | 43.84 | 47.10 | 60.19 | 71.57 | 82.97 | 78.06 | 68.10 | 57.26 | 43.37 | 34.74 | 61.73 | |||||||||||||
YRS | 47 | 45 | 39 | 33 | 31 | 36 | 34 | 29 | 31 | 30 | 36 | 40 | 12 |