YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | 52.59 | f | 56.37 | d | 63.33 | 69.03 | 86.73 | 92.81 | 95.06 | 75.21 | a | 66.97 | 51.50 | 43.35 | 70.04 | b | ||||||||
1962 | 40.43 | a | 46.68 | 51.31 | b | 68.57 | 65.81 | 80.20 | 88.58 | 84.58 | 83.27 | 66.68 | 54.00 | 46.87 | 64.75 | |||||||||||
1963 | 35.31 | b | 54.67 | a | 56.45 | 56.70 | 72.74 | 73.12 | v | 84.68 | 87.74 | d | 85.17 | a | 70.76 | b | 54.47 | 43.23 | 63.81 | a | ||||||
1964 | 45.00 | a | 50.34 | 53.32 | 61.97 | 69.61 | ----- | z | 89.03 | ----- | z | 77.33 | 72.71 | 49.87 | 43.32 | c | 61.25 | b | ||||||||
1965 | 40.90 | 50.57 | 56.61 | 65.13 | 70.48 | ----- | z | 87.32 | 85.03 | 74.17 | 74.68 | 58.80 | 42.26 | 64.18 | a | |||||||||||
1966 | 44.77 | 46.44 | a | 57.81 | 70.07 | 79.84 | 78.90 | 88.40 | a | 89.42 | 80.60 | 68.83 | a | 55.90 | 46.00 | 67.25 | ||||||||||
1967 | 47.63 | a | 53.44 | a | 55.11 | c | 56.93 | 73.03 | a | 81.07 | 93.77 | 97.48 | b | 87.73 | 68.29 | 53.20 | 42.10 | a | 67.48 | |||||||
1968 | 43.84 | 53.90 | 62.29 | 61.27 | 71.57 | a | 80.93 | 94.76 | b | 81.60 | a | 80.27 | 67.45 | 50.97 | 43.52 | 66.03 | ||||||||||
1969 | 37.32 | 44.36 | 56.26 | 64.33 | 76.48 | 81.87 | 88.29 | 90.65 | 81.50 | 61.03 | 55.77 | 45.21 | b | 65.26 | ||||||||||||
1970 | 45.17 | b | 52.86 | 54.68 | 56.79 | a | 73.13 | 83.97 | 92.55 | 93.52 | 73.50 | 65.90 | 54.13 | 43.77 | 65.83 | |||||||||||
1971 | 45.90 | 50.71 | 51.67 | a | 61.83 | a | 72.68 | 75.28 | a | 91.61 | 96.74 | 76.50 | 63.58 | 50.52 | a | 41.90 | 64.91 | |||||||||
1972 | 41.10 | a | 49.55 | 57.61 | 59.79 | a | 73.97 | 81.27 | 89.58 | 91.74 | 75.77 | 66.03 | 50.17 | 35.94 | 64.38 | |||||||||||
1973 | 39.71 | 51.18 | 56.26 | 63.10 | 75.90 | 82.53 | 91.29 | 90.48 | 79.70 | 65.55 | 48.76 | a | 47.45 | 65.99 | ||||||||||||
1974 | 40.03 | 50.25 | 54.16 | 60.60 | 68.29 | 87.80 | 88.94 | 89.32 | 86.33 | 71.52 | 53.27 | 44.74 | 66.27 | |||||||||||||
1975 | 43.35 | 48.21 | 53.13 | 55.77 | 69.61 | 77.87 | 90.35 | 84.52 | 85.60 | 64.29 | 51.97 | 45.35 | 64.17 | |||||||||||||
1976 | 44.33 | a | 49.34 | 54.35 | 60.23 | 75.00 | e | 76.25 | f | 90.57 | j | 81.90 | 83.47 | 71.55 | 56.07 | 46.65 | 62.29 | b | ||||||||
1977 | 37.90 | 55.04 | 52.68 | 71.10 | 64.00 | 85.87 | 90.65 | 92.16 | 76.54 | d | 66.81 | 50.27 | 46.35 | 65.78 | ||||||||||||
1978 | 45.97 | 51.18 | 61.65 | 62.13 | 65.81 | 81.23 | 88.23 | 86.97 | 74.93 | a | 73.65 | 46.30 | 35.73 | a | 64.48 | |||||||||||
1979 | 28.39 | 43.21 | 59.10 | 60.70 | 72.45 | 83.57 | 92.52 | 88.10 | 86.40 | 69.81 | 47.53 | 47.50 | m | 66.52 | a | |||||||||||
1980 | 39.35 | 49.03 | 53.37 | a | 67.10 | 70.16 | 75.07 | 90.61 | 86.13 | 81.47 | 70.23 | 53.96 | d | 48.61 | 65.42 | |||||||||||
1981 | 48.26 | 50.75 | 58.97 | 64.93 | 70.03 | 77.50 | 87.61 | 95.45 | 83.13 | 66.13 | 55.03 | 46.48 | 67.02 | |||||||||||||
1982 | 40.81 | e | 45.57 | 55.45 | 60.53 | 70.94 | 81.77 | 86.32 | 91.16 | 75.83 | 64.10 | 48.73 | 44.26 | 63.79 | ||||||||||||
1983 | 47.39 | 52.32 | 58.06 | 61.03 | 74.13 | 76.83 | 83.84 | 90.23 | 78.67 | 67.97 | 54.07 | b | 33.65 | 64.85 | ||||||||||||
1984 | 41.43 | a | 48.76 | 57.00 | 59.67 | 68.68 | 74.47 | 93.16 | 93.35 | 78.03 | a | 61.48 | 51.13 | 38.84 | 63.83 | |||||||||||
1985 | 37.10 | 42.61 | 55.52 | 69.47 | 75.58 | 84.93 | 97.03 | 85.09 | h | 73.07 | 64.29 | 37.93 | 33.52 | 61.00 | a | |||||||||||
1986 | 45.55 | 50.46 | 62.00 | 65.17 | 73.74 | 89.57 | 85.90 | 97.39 | 74.70 | 69.60 | k | 53.23 | 44.68 | 67.49 | a | |||||||||||
1987 | 38.81 | 51.07 | 56.52 | 73.43 | 76.16 | 86.20 | 85.68 | 90.03 | 88.59 | a | 77.42 | 56.40 | 43.53 | a | 68.65 | |||||||||||
1988 | 39.84 | 53.03 | 58.48 | 69.20 | 74.06 | 81.03 | 92.10 | 92.42 | e | 82.67 | c | 81.14 | i | 51.44 | l | 43.96 | h | 71.43 | c | |||||||
1989 | 40.90 | j | 36.72 | c | 55.03 | 68.23 | 70.87 | h | 85.95 | k | 93.29 | j | 84.33 | g | 81.85 | j | 67.24 | j | 53.94 | l | 46.05 | k | 53.33 | i | ||
1990 | 47.62 | j | 49.87 | m | 61.73 | i | 72.52 | g | 69.95 | j | 82.14 | h | 94.00 | h | 90.08 | f | 89.74 | k | 67.83 | h | 52.12 | m | 39.88 | n | ----- | z |
1991 | 38.68 | i | 57.44 | j | 53.22 | m | 61.81 | i | 66.96 | h | 74.19 | i | 91.45 | i | 92.48 | h | 88.79 | k | 69.09 | h | 50.39 | l | 46.42 | l | ----- | z |
1992 | 48.32 | i | 56.71 | l | 64.65 | n | 69.52 | i | 84.33 | j | 87.77 | h | 88.36 | i | 95.50 | i | 84.20 | j | 71.00 | j | 47.47 | o | 40.82 | n | ----- | z |
1993 | 36.46 | r | 40.28 | j | 56.88 | f | 61.73 | h | 77.90 | j | 76.14 | h | 80.00 | j | 86.79 | g | 84.43 | g | 69.90 | k | 48.35 | m | 47.74 | l | ----- | z |
1994 | 49.80 | k | 50.78 | j | 63.14 | i | 66.30 | j | 75.95 | j | 83.00 | i | 97.95 | l | 93.39 | h | 87.42 | k | 67.89 | m | 47.67 | l | 42.37 | l | ----- | z |
1995 | 47.70 | k | 56.69 | l | 59.41 | i | 63.05 | j | 73.57 | j | 77.30 | g | 90.90 | j | 88.41 | i | 83.14 | i | 64.78 | h | 55.11 | l | 48.69 | o | ----- | z |
1996 | 45.06 | m | 51.21 | j | 58.95 | j | 67.10 | i | 67.18 | i | 81.76 | i | 95.38 | g | 93.55 | i | 80.06 | n | 68.00 | i | 56.20 | o | 46.70 | k | ----- | z |
1997 | 44.14 | j | 50.26 | i | 61.30 | k | 63.78 | g | 80.57 | j | 79.05 | i | 90.41 | i | 93.24 | j | 83.50 | h | 68.42 | l | 56.86 | p | 45.78 | m | ----- | z |
1998 | 46.95 | i | 52.50 | j | 60.05 | j | 67.78 | l | 67.05 | k | 79.95 | h | 97.09 | h | 96.29 | j | 88.33 | i | 69.30 | k | 52.28 | l | 45.37 | l | ----- | z |
1999 | 46.81 | j | 50.89 | j | 56.78 | h | 61.67 | i | 71.50 | k | 81.45 | j | 92.76 | j | 90.16 | f | 84.52 | g | 71.12 | e | 59.43 | g | 46.10 | j | 71.12 | k |
2000 | 43.88 | f | 53.04 | e | 59.24 | f | 72.40 | e | 72.44 | f | 83.54 | b | 91.00 | d | 92.74 | d | 79.92 | d | 65.44 | d | 45.57 | g | 40.55 | i | 76.87 | e |
2001 | 42.73 | e | 50.25 | d | 60.44 | f | 62.36 | e | 81.44 | d | 80.85 | c | 88.86 | c | 95.96 | e | 86.35 | g | 67.59 | d | 55.57 | i | 43.12 | e | 68.13 | c |
2002 | 45.96 | d | 53.33 | d | 55.00 | e | 65.61 | g | 72.42 | e | 85.96 | d | 97.33 | d | 89.31 | e | 84.26 | g | 68.27 | e | 57.52 | i | 48.68 | f | 70.95 | d |
2003 | 49.22 | d | 50.04 | d | 60.54 | e | 63.88 | d | 76.15 | e | 88.40 | e | 102.45 | b | 97.69 | e | 87.44 | c | 74.73 | e | 55.06 | m | 47.05 | i | 75.06 | b |
2004 | 44.00 | f | 52.81 | c | 66.85 | d | 71.42 | d | 71.40 | f | 85.27 | d | 95.07 | d | 92.41 | b | 78.82 | b | 68.54 | e | 53.57 | i | 45.96 | e | 73.02 | c |
2005 | 45.16 | f | 53.17 | d | 61.29 | c | 63.65 | d | 72.67 | d | 79.63 | c | 97.11 | d | 94.66 | b | 82.04 | d | 69.11 | d | 48.77 | h | 40.64 | i | 74.81 | c |
2006 | 47.17 | g | 49.25 | d | 54.89 | d | 67.05 | h | 78.88 | e | 83.35 | j | 98.50 | m | 91.65 | h | 85.26 | k | 67.86 | j | 54.67 | l | 47.20 | k | 61.01 | i |
2007 | 44.09 | h | 51.50 | h | 62.48 | j | 65.87 | g | 79.52 | f | 87.37 | k | 99.76 | j | 94.21 | g | 83.42 | k | 67.80 | k | 53.17 | l | 45.82 | n | ----- | z |
2008 | 41.00 | j | 52.32 | j | 56.00 | i | 63.95 | k | 73.88 | n | 81.58 | k | 93.64 | i | 94.14 | b | 87.68 | k | 71.67 | j | 58.59 | m | 44.27 | i | 94.14 | k |
2009 | 45.37 | l | 53.71 | k | 53.77 | i | 63.67 | i | 74.26 | l | 85.60 | j | 97.05 | k | 96.74 | h | 91.62 | i | 63.00 | l | 57.89 | k | 40.52 | j | ----- | z |
2010 | 50.94 | n | 53.28 | j | 61.45 | i | 65.74 | k | 64.76 | n | 77.00 | i | 94.33 | m | 94.27 | i | 83.37 | k | 72.16 | l | 54.89 | l | 44.84 | l | ----- | z |
2011 | 47.20 | k | 48.44 | l | 56.71 | n | 60.64 | s | 71.57 | j | 81.67 | l | 93.56 | m | 99.12 | o | 94.26 | k | 74.35 | n | 57.60 | t | 47.21 | l | ----- | z |
2012 | 52.33 | v | 54.00 | j | 60.47 | p | 72.00 | k | 79.24 | n | 79.50 | l | 99.53 | l | 101.00 | h | 91.78 | l | 74.88 | n | 62.30 | t | 47.14 | q | ----- | z |
2013 | 42.27 | i | 51.82 | k | 62.35 | k | 67.33 | i | 75.57 | j | 82.95 | j | 102.15 | k | 96.77 | i | 86.35 | j | 68.12 | n | 53.30 | t | 41.74 | l | ----- | z |
2014 | 49.23 | i | 48.71 | k | 63.38 | j | 69.90 | j | 81.53 | n | 86.72 | l | 102.44 | o | 97.25 | s | 93.00 | k | 79.38 | o | 46.38 | v | 50.12 | w | ----- | z |
2015 | 51.17 | m | 59.31 | o | 73.22 | v | 70.62 | i | 78.28 | m | 94.18 | m | 97.40 | k | 100.11 | m | 90.69 | n | 84.92 | s | 55.00 | s | 50.44 | m | ----- | z |
2016 | 51.62 | o | 59.25 | m | 61.45 | k | 80.44 | u | 79.00 | v | 83.57 | 89.30 | a | 92.00 | 78.30 | 64.68 | 58.43 | 34.77 | 71.58 | e | ||||||
2017 | 37.61 | m | 49.07 | 56.71 | 61.27 | 74.97 | 81.77 | 96.68 | 95.87 | 82.90 | 63.73 | e | 54.33 | ----- | z | 71.73 | b | |||||||||
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 | 91.90 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.90 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.12 | 49.81 | 56.76 | 63.83 | 72.63 | 82.04 | 90.98 | 91.08 | 80.28 | 68.03 | 52.30 | 42.80 | 65.59 | |||||||||||||
S.D. | 4.47 | 3.78 | 3.33 | 4.72 | 3.90 | 3.90 | 4.03 | 4.37 | 4.47 | 3.82 | 4.14 | 4.25 | 1.32 | |||||||||||||
SKEW | -0.83 | -1.41 | 0.87 | 0.34 | -0.01 | -0.12 | 0.61 | -0.43 | 0.17 | 0.43 | -1.36 | -1.04 | 0.62 | |||||||||||||
MAX | 49.22 | 55.04 | 66.85 | 73.43 | 81.44 | 89.57 | 102.45 | 97.69 | 88.59 | 77.42 | 58.80 | 48.61 | 68.65 | |||||||||||||
MIN | 28.39 | 36.72 | 51.31 | 55.77 | 64.00 | 74.47 | 83.84 | 81.60 | 73.07 | 61.03 | 37.93 | 33.52 | 63.79 | |||||||||||||
YRS | 30 | 36 | 35 | 35 | 34 | 32 | 36 | 35 | 34 | 35 | 29 | 29 | 19 |