YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.10 | u | 49.70 | c | 36.31 | e | 43.01 | j |
1952 | 35.35 | 41.19 | c | 41.00 | a | 64.86 | h | 70.26 | 74.78 | c | 88.22 | d | 87.77 | e | 85.18 | h | 77.55 | t | ----- | z | ----- | z | 62.65 | e | ||
1953 | 47.96 | e | 47.86 | 52.37 | a | 59.00 | c | 58.67 | a | 73.60 | e | 92.48 | b | 84.87 | a | 84.17 | 65.68 | 53.46 | d | 43.10 | a | 63.60 | ||||
1954 | 40.84 | f | 51.30 | a | 48.88 | f | 65.22 | c | 77.07 | a | 77.25 | b | 91.74 | 81.50 | e | 78.07 | a | 67.04 | d | 58.10 | 38.55 | i | 71.92 | c | ||
1955 | 31.05 | l | ----- | z | 48.42 | g | 52.72 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 65.64 | p | 65.52 | 57.19 | d | 43.00 | o | 61.35 | j | |
1960 | 36.57 | c | 40.41 | l | 53.74 | 59.74 | g | 64.86 | c | 82.57 | 91.77 | i | 84.43 | h | 82.95 | k | 69.46 | g | 52.57 | p | 44.06 | m | 59.43 | h | ||
1961 | 44.57 | q | 48.41 | k | 52.78 | m | 61.70 | 68.63 | a | 84.95 | h | 91.83 | a | 89.26 | 73.33 | 64.03 | a | 49.00 | a | 35.79 | q | 71.11 | e | |||
1962 | 37.38 | g | 42.55 | f | 46.52 | 67.30 | 62.84 | 79.20 | 86.20 | f | 85.71 | c | 81.38 | a | 66.37 | a | 53.54 | b | 46.71 | j | 67.86 | d | ||||
1963 | 41.10 | 52.89 | 49.52 | 51.63 | 68.10 | a | 72.07 | 83.78 | d | 86.00 | b | 80.53 | 68.19 | 49.86 | a | 42.31 | b | 62.17 | ||||||||
1964 | 39.00 | 45.14 | 48.94 | 58.10 | 65.16 | 71.07 | 87.16 | 85.35 | 76.07 | 70.03 | 46.28 | a | 41.19 | 61.12 | ||||||||||||
1965 | 40.00 | 48.00 | a | 51.74 | 62.40 | 65.26 | 73.76 | a | 86.96 | g | 80.97 | 72.03 | 69.58 | 50.31 | a | 36.73 | a | 59.16 | a | |||||||
1966 | 38.16 | 37.76 | c | 48.74 | 62.07 | b | 77.17 | b | 77.07 | b | 87.48 | b | 89.18 | c | 78.89 | b | 68.37 | d | 51.23 | d | 40.94 | 63.09 | ||||
1967 | 43.10 | 49.68 | 48.58 | 46.00 | b | 69.73 | a | 74.19 | c | 90.24 | b | 91.81 | 80.96 | b | 68.17 | b | 52.48 | a | 37.19 | 62.68 | ||||||
1968 | 40.32 | 48.90 | 55.25 | c | 59.59 | a | 67.55 | b | 80.74 | c | 90.69 | b | 78.50 | a | 77.29 | b | 65.70 | a | 45.90 | a | 38.83 | b | 62.44 | |||
1969 | 42.53 | a | 38.56 | a | 48.79 | b | 61.62 | a | 74.69 | e | 74.07 | 87.52 | d | 89.17 | a | 79.54 | b | 55.70 | a | 52.83 | 43.03 | b | 62.34 | |||
1970 | 40.68 | f | 49.57 | 50.38 | b | 52.00 | b | 69.40 | a | 81.91 | h | 88.37 | d | 89.59 | b | 73.66 | a | 60.80 | a | 50.71 | m | 39.19 | d | 63.66 | c | |
1971 | 45.00 | b | 47.89 | a | 47.55 | ----- | z | 65.75 | c | 74.34 | a | 86.00 | q | 90.64 | c | 72.86 | a | 57.17 | b | 48.36 | e | 36.21 | b | 58.58 | b | |
1972 | 39.04 | h | 45.48 | b | 59.52 | d | 56.61 | g | 72.81 | e | 80.09 | h | 89.19 | d | 87.69 | e | 74.70 | c | 60.21 | b | 45.18 | b | 35.32 | f | 66.85 | d |
1973 | 37.37 | d | 44.18 | f | 48.28 | f | 60.21 | a | 73.72 | b | 83.08 | f | 88.15 | e | 84.68 | c | 77.78 | g | 64.36 | c | 47.74 | c | 45.60 | f | 65.18 | e |
1974 | 38.40 | a | 45.88 | b | 51.00 | e | 58.29 | f | 69.08 | g | 85.00 | u | 87.15 | d | 87.80 | p | ----- | z | ----- | z | ----- | z | 38.61 | m | 55.61 | h |
1975 | 40.55 | b | 41.91 | e | 46.80 | a | 49.71 | b | 69.64 | c | 74.92 | e | 88.37 | a | 82.27 | e | 80.46 | b | 58.56 | m | 47.16 | e | 45.16 | f | 62.18 | b |
1976 | 44.04 | c | 46.37 | b | 48.74 | 59.27 | d | 75.38 | b | 77.76 | a | 87.30 | d | 78.60 | a | 76.82 | b | 65.97 | b | 59.08 | e | 49.61 | c | 64.08 | ||
1977 | 35.29 | 48.26 | e | 45.52 | b | 67.29 | f | 62.85 | d | 83.52 | c | 88.04 | e | 86.22 | d | 77.00 | a | 65.85 | e | 51.59 | c | 46.82 | i | 64.41 | b | |
1978 | 42.63 | a | 45.07 | 57.86 | c | 56.86 | a | 64.30 | d | 77.83 | a | 88.85 | e | 86.04 | d | 70.81 | d | 72.63 | d | 47.52 | c | 37.70 | a | 62.34 | ||
1979 | 33.79 | b | 42.27 | b | 52.76 | b | 59.25 | b | 71.72 | b | 81.52 | a | 90.00 | f | 85.22 | d | ----- | z | 70.26 | l | ----- | z | 49.00 | s | 60.93 | e |
1980 | 41.61 | h | 47.60 | i | 48.93 | q | 63.76 | m | 68.00 | h | 71.80 | j | 87.60 | p | 85.62 | o | 76.26 | k | 67.00 | i | 54.60 | t | 49.24 | n | ----- | z |
1981 | 41.18 | i | 47.00 | k | 50.37 | l | 69.47 | o | 65.79 | g | 77.67 | l | 87.95 | j | 90.46 | c | 81.79 | f | 59.91 | h | 51.57 | i | 44.89 | d | 67.68 | j |
1982 | 40.03 | a | 40.86 | f | 47.43 | a | 55.56 | c | 69.61 | c | 75.55 | a | ----- | z | 90.67 | m | ----- | z | ----- | z | ----- | z | 37.82 | i | 57.64 | g |
1983 | 42.37 | d | 45.81 | a | 47.83 | b | 52.89 | b | 67.17 | a | 74.22 | g | 82.00 | 83.00 | d | 75.57 | 66.45 | 46.30 | c | ----- | z | 60.94 | b | |||
1984 | 40.57 | j | 42.77 | c | 51.89 | c | 54.12 | d | 67.72 | b | 72.32 | b | 89.77 | i | 88.30 | k | 76.00 | c | 55.58 | 45.23 | d | 35.64 | f | 58.20 | d | |
1985 | 36.13 | a | 42.33 | d | 48.56 | d | 65.75 | b | 69.88 | o | 81.96 | e | 90.71 | g | 84.38 | b | 68.62 | f | 63.70 | k | 43.28 | l | 40.13 | h | 59.85 | f |
1986 | 48.55 | b | 49.19 | a | 54.86 | i | 58.40 | e | 69.40 | f | 82.90 | 83.87 | 91.55 | 63.44 | e | ----- | z | 57.00 | k | 41.91 | h | 68.27 | e | |||
1987 | 39.36 | c | 46.75 | 51.32 | c | 66.47 | m | 71.21 | g | 81.62 | d | 84.78 | h | 89.17 | h | 83.24 | i | 72.00 | i | 47.30 | g | ----- | z | 54.76 | h | |
1988 | 38.71 | g | 52.04 | d | 53.41 | i | 63.14 | i | 64.56 | o | 83.93 | o | 92.30 | h | 89.19 | e | 76.54 | f | 76.16 | 47.16 | e | 37.08 | e | 60.33 | g | |
1989 | 40.25 | c | 38.54 | d | 46.89 | v | 64.52 | i | 64.00 | u | 81.56 | u | 93.08 | r | 81.53 | n | 77.50 | f | 63.97 | a | 55.16 | e | 47.83 | a | 49.15 | g |
1990 | 43.75 | c | 43.21 | 56.83 | a | 64.60 | e | 64.13 | h | 79.67 | c | 88.04 | g | 83.60 | f | 82.77 | d | 66.09 | i | 52.36 | b | 34.78 | d | 57.25 | d | |
1991 | 43.65 | 53.52 | g | 46.61 | c | 55.87 | g | 62.33 | j | 72.67 | l | 85.26 | l | 88.56 | f | 82.38 | f | 69.03 | 54.16 | k | 44.40 | k | 53.09 | i | ||
1992 | 41.96 | g | 53.61 | k | 57.00 | f | 66.88 | f | 80.52 | f | 81.31 | a | 85.57 | c | 89.10 | 78.04 | e | 65.79 | l | 47.62 | f | 36.57 | c | 74.12 | g | |
1993 | 32.96 | d | 34.09 | e | 54.41 | d | 59.57 | i | 72.21 | c | 69.27 | s | 78.92 | g | 81.44 | d | 76.92 | f | 64.56 | f | 50.10 | i | 43.22 | h | 55.02 | g |
1994 | 47.50 | e | 42.57 | e | 61.21 | g | 62.00 | n | 69.36 | f | 82.39 | l | 92.78 | h | 90.15 | e | 79.09 | g | 64.36 | q | 38.41 | m | 37.79 | g | 60.07 | i |
1995 | 38.09 | h | 56.27 | b | 52.58 | l | 50.80 | y | 64.95 | l | 72.00 | m | 83.80 | p | 87.06 | n | 82.00 | p | 68.53 | p | 56.83 | x | 52.38 | w | 56.27 | k |
1996 | 38.91 | t | 47.15 | p | 53.54 | r | 61.35 | m | 67.65 | n | 77.62 | n | 92.87 | p | 87.80 | p | 77.25 | n | 68.76 | n | 55.00 | q | 44.14 | q | ----- | z |
1997 | 42.29 | n | 44.71 | n | 58.28 | m | 57.71 | m | 74.95 | l | 78.21 | p | 88.90 | k | 87.90 | b | 78.63 | 64.36 | c | ----- | z | ----- | z | 76.96 | i | |
1998 | ----- | z | 42.29 | d | ----- | z | 58.38 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.65 | j | 40.91 | i | 42.29 | k |
1999 | 44.63 | a | 44.18 | f | 53.19 | j | 56.68 | h | 69.13 | p | 69.90 | t | 87.80 | u | ----- | z | 83.10 | t | 76.46 | r | 56.75 | r | ----- | z | 44.63 | k |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.65 | 51.17 | a | 38.23 | 52.01 | i | ||
2002 | ----- | z | 48.32 | f | 52.12 | f | 61.30 | 69.96 | e | 81.23 | 92.66 | b | 85.33 | a | 77.57 | 62.65 | 51.80 | 43.52 | 69.56 | c | ||||||
2003 | 49.90 | 42.67 | a | 54.74 | 54.43 | 70.22 | d | 83.07 | 93.92 | f | 86.46 | c | 79.81 | c | 72.04 | d | 44.53 | 41.10 | 61.73 | a | ||||||
2004 | 40.55 | 41.55 | 60.32 | 63.03 | 68.32 | 79.27 | h | 89.92 | e | 86.14 | c | 76.89 | c | 65.80 | f | 46.57 | 43.50 | c | 61.68 | b | ||||||
2005 | 35.57 | c | 44.00 | 54.85 | d | 58.05 | j | 66.36 | f | 72.17 | f | 92.26 | 88.67 | j | 75.33 | c | 64.06 | 49.60 | 36.78 | d | 56.56 | d | ||||
2006 | 41.42 | s | 44.75 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.96 | c | 64.06 | 52.00 | o | ----- | z | 70.51 | j | |
2007 | ----- | z | ----- | z | 58.33 | y | 59.23 | 73.42 | 81.63 | 94.38 | b | 89.74 | l | 75.23 | 60.55 | b | 52.60 | 35.68 | 66.59 | d | ||||||
2008 | 34.27 | a | 44.34 | 50.77 | 59.43 | i | 68.78 | h | 82.13 | g | 91.55 | 89.42 | 78.80 | 65.63 | a | 54.17 | 39.33 | a | 60.92 | c | ||||||
2009 | 44.56 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.63 | 45.21 | 50.96 | 58.56 | 69.14 | 77.91 | 88.80 | 86.34 | 76.89 | 65.39 | 50.41 | 40.06 | 62.65 | |||||||||||||
S.D. | 4.42 | 4.63 | 4.28 | 5.17 | 4.37 | 3.91 | 2.99 | 3.53 | 3.97 | 4.55 | 3.86 | 3.89 | 0.86 | |||||||||||||
SKEW | 0.23 | 0.02 | 0.27 | -0.52 | -0.13 | -0.13 | -0.31 | -0.53 | -1.10 | -0.20 | 0.45 | 0.77 | 0.02 | |||||||||||||
MAX | 49.90 | 56.27 | 60.32 | 67.30 | 77.17 | 83.52 | 94.38 | 91.81 | 84.17 | 76.16 | 59.08 | 49.61 | 64.08 | |||||||||||||
MIN | 32.96 | 34.09 | 41.00 | 46.00 | 58.67 | 71.07 | 82.00 | 78.50 | 63.44 | 55.58 | 44.53 | 34.78 | 61.12 | |||||||||||||
YRS | 33 | 35 | 32 | 27 | 30 | 28 | 26 | 34 | 31 | 32 | 32 | 25 | 9 |