YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.43 | x | 44.40 | 42.55 | 43.47 | j | ||
1956 | 39.26 | 38.17 | 58.55 | 71.43 | 79.52 | 86.60 | 98.16 | 93.16 | 87.10 | 64.58 | 46.60 | 38.23 | 66.78 | |||||||||||||
1957 | 28.45 | 41.29 | 56.61 | 65.33 | 74.57 | a | 87.33 | 96.19 | 93.90 | 87.93 | 64.42 | 50.70 | 40.06 | 65.57 | ||||||||||||
1958 | 36.45 | 48.96 | 55.10 | 63.17 | 84.65 | 86.31 | a | 96.77 | 98.77 | 82.40 | 73.81 | 51.57 | 44.37 | a | 68.53 | |||||||||||
1959 | 42.87 | 48.36 | 56.84 | 71.80 | 72.90 | 91.07 | 100.19 | 92.87 | 76.83 | 67.16 | 51.03 | 40.68 | 67.72 | |||||||||||||
1960 | 33.35 | 42.38 | 56.94 | 68.07 | 73.48 | 92.21 | a | 102.74 | 91.16 | 88.13 | 68.61 | 50.63 | 39.97 | 67.31 | ||||||||||||
1961 | 39.10 | 50.61 | 56.77 | 66.53 | 78.55 | 96.57 | 100.20 | a | 99.45 | 78.17 | 65.94 | 49.30 | 39.23 | 68.37 | ||||||||||||
1962 | 30.26 | 39.54 | 54.84 | 73.23 | 73.03 | 88.33 | 94.61 | 92.52 | 86.33 | 65.70 | a | 53.17 | 41.42 | 66.08 | ||||||||||||
1963 | 35.45 | 54.32 | 59.37 | a | 61.73 | 79.32 | 82.23 | 93.61 | 94.74 | 86.77 | 71.45 | 50.73 | 33.74 | 66.96 | ||||||||||||
1964 | 33.94 | 38.00 | 51.13 | 64.90 | 74.71 | 80.70 | 97.00 | 90.39 | 80.27 | 71.42 | 49.33 | 41.32 | 64.43 | |||||||||||||
1965 | 37.45 | 49.64 | 57.94 | 68.67 | 74.94 | 85.27 | 96.06 | 90.23 | 77.33 | 74.13 | 54.17 | 40.35 | 67.18 | |||||||||||||
1966 | 44.61 | 47.89 | 60.52 | 70.97 | 83.74 | 85.43 | 97.90 | 96.84 | 88.27 | 67.97 | 53.90 | 39.84 | 69.82 | |||||||||||||
1967 | 42.94 | 50.93 | 56.48 | 59.33 | 77.65 | 85.33 | 101.16 | 102.35 | 89.93 | 65.84 | 51.80 | 36.29 | 68.34 | |||||||||||||
1968 | 38.74 | 52.04 | b | 62.00 | 65.73 | 76.84 | 87.63 | 101.23 | 86.23 | 81.40 | 65.61 | 48.57 | 39.73 | a | 67.15 | |||||||||||
1969 | 36.32 | 40.86 | 56.42 | 68.63 | 82.00 | 85.63 | 97.06 | 97.39 | 85.20 | 63.03 | 52.70 | 43.19 | 67.37 | |||||||||||||
1970 | 42.10 | 53.32 | 55.68 | 60.90 | 77.65 | 88.43 | 97.68 | 99.68 | 78.03 | 63.23 | 50.73 | 39.48 | 67.24 | |||||||||||||
1971 | 40.06 | 49.36 | 52.76 | b | 67.53 | 79.16 | 83.87 | 98.45 | 101.90 | 78.87 | 66.70 | a | 48.73 | 36.32 | 66.98 | |||||||||||
1972 | 37.55 | 44.03 | 59.87 | 64.40 | 81.74 | 88.57 | 95.87 | 97.65 | 79.03 | 70.03 | 50.03 | 30.52 | 66.61 | |||||||||||||
1973 | 36.94 | 49.43 | 57.42 | 66.50 | 81.87 | 88.97 | 99.71 | 95.84 | 82.43 | 67.35 | 48.00 | 43.71 | 68.18 | |||||||||||||
1974 | 36.65 | 48.75 | 56.13 | 66.13 | 74.19 | 93.27 | 93.10 | 93.52 | 86.17 | 67.87 | 51.40 | 37.39 | 67.05 | |||||||||||||
1975 | 32.71 | 41.82 | 52.77 | 57.37 | 73.03 | 81.47 | 97.00 | 87.48 | 85.57 | 65.35 | 47.73 | 35.53 | a | 63.15 | ||||||||||||
1976 | 36.20 | a | 41.00 | 51.55 | 63.83 | 80.53 | a | 82.43 | 94.65 | 85.26 | 81.63 | 67.50 | a | 52.97 | 39.90 | 64.79 | ||||||||||
1977 | 26.06 | 43.61 | 54.68 | 73.86 | a | 69.19 | 91.07 | 93.48 | 93.35 | 79.47 | 67.94 | 48.13 | 43.03 | 65.32 | ||||||||||||
1978 | 42.60 | a | 46.54 | 61.71 | 62.10 | 72.42 | 85.03 | 93.13 | 90.48 | 78.07 | a | 71.53 | a | 46.30 | 33.61 | 65.29 | ||||||||||
1979 | 24.52 | 39.82 | 58.17 | a | 64.90 | 76.81 | 87.43 | 95.19 | 90.32 | 86.77 | 69.48 | 45.47 | 39.61 | 64.87 | ||||||||||||
1980 | 37.48 | 47.10 | 55.10 | 69.73 | 74.55 | 80.90 | 93.90 | 89.26 | 80.27 | 67.00 | 48.10 | 37.70 | a | 65.09 | ||||||||||||
1981 | 38.87 | 46.89 | 59.13 | 66.63 | 72.52 | 82.07 | 93.00 | 96.87 | 82.70 | 62.87 | 52.10 | 40.00 | 66.14 | |||||||||||||
1982 | 32.17 | a | 36.30 | a | 53.48 | 61.00 | 73.65 | 83.57 | 90.90 | b | 92.87 | a | 77.97 | 64.71 | 44.77 | 36.07 | a | 62.29 | ||||||||
1983 | 38.17 | b | 47.63 | a | 56.60 | a | 61.60 | 75.74 | 82.67 | 89.23 | 92.03 | b | 78.14 | a | 67.39 | 50.67 | 31.57 | a | 64.29 | |||||||
1984 | 29.53 | a | 35.63 | b | 53.56 | d | 60.72 | a | 71.35 | 79.63 | 94.74 | 93.81 | 79.57 | 63.29 | 47.80 | 30.52 | 61.68 | |||||||||
1985 | 27.93 | b | 37.28 | c | 50.00 | 70.83 | 77.23 | 88.59 | a | 100.66 | b | 90.07 | d | 72.43 | g | 62.04 | e | 37.07 | b | 20.48 | b | 60.20 | a | |||
1986 | 31.47 | a | 45.50 | b | 59.75 | c | 64.08 | e | 75.86 | b | 90.54 | f | 89.73 | i | 95.73 | e | 71.88 | f | 67.71 | c | 49.74 | c | 36.27 | a | 58.46 | c |
1987 | 31.70 | a | 46.27 | b | 57.33 | d | 75.83 | g | 80.84 | f | 87.20 | e | 90.33 | d | 90.73 | e | 85.96 | f | 73.46 | e | 50.11 | b | 40.38 | b | 63.06 | c |
1988 | 31.23 | e | 45.18 | a | 58.00 | c | 68.09 | g | 74.44 | f | 89.57 | g | 97.76 | f | 93.58 | g | 81.83 | g | 76.55 | i | 47.96 | b | 31.69 | b | 42.81 | g |
1989 | 27.33 | d | 26.24 | c | 50.79 | c | 69.08 | e | 73.04 | e | 87.71 | i | 96.58 | e | 86.92 | e | 81.70 | g | 65.92 | g | 48.74 | c | 40.42 | 57.68 | c | |
1990 | 42.13 | a | 46.78 | e | 61.27 | e | 72.40 | e | 72.29 | g | 86.08 | e | 96.30 | d | 91.65 | e | 89.31 | d | 65.14 | i | 50.63 | c | 30.15 | d | 66.67 | b |
1991 | 29.64 | c | 49.31 | b | 57.04 | c | 63.41 | c | 70.08 | e | 80.45 | h | 96.21 | c | 95.62 | g | 85.00 | g | 68.19 | e | 44.83 | 38.80 | a | 57.50 | c | |
1992 | 38.85 | d | 51.21 | a | 64.73 | a | 70.04 | f | 83.92 | e | 89.17 | g | 90.50 | g | 93.25 | g | 80.67 | c | 69.15 | d | 43.35 | d | 33.89 | c | 58.22 | d |
1993 | 29.96 | d | 32.46 | b | 47.84 | 61.71 | f | 79.89 | d | 77.92 | d | 82.08 | e | 87.78 | d | 82.89 | c | 67.18 | c | 43.83 | a | 42.93 | d | 61.34 | a | |
1994 | 37.50 | c | 44.48 | c | 63.64 | f | 68.03 | a | 77.19 | 85.33 | 95.97 | b | 95.34 | b | 85.10 | 64.81 | 40.24 | a | 32.80 | a | 66.07 | a | ||||
1995 | 40.84 | 51.43 | 55.16 | 63.03 | 73.19 | 80.30 | 90.21 | b | 88.50 | a | 83.10 | 62.61 | 50.23 | 39.77 | a | 64.86 | ||||||||||
1996 | 38.55 | 43.29 | a | 59.10 | 65.03 | 69.80 | a | 84.20 | 96.74 | 92.61 | 77.50 | 65.97 | a | 52.03 | a | 40.45 | 65.44 | |||||||||
1997 | ----- | z | 47.57 | 58.45 | 62.43 | 79.19 | 83.10 | 90.06 | 93.87 | 83.23 | 66.13 | 51.77 | ----- | z | 71.58 | b | ||||||||||
1998 | 41.58 | 48.07 | 55.87 | 63.63 | 71.07 | b | 79.33 | 96.84 | 95.81 | 84.70 | 66.65 | 52.87 | ----- | z | 68.77 | a | ||||||||||
1999 | 42.83 | a | 43.26 | a | 57.00 | 63.59 | a | 73.52 | 81.73 | 93.03 | 90.97 | 81.03 | 69.19 | 54.79 | a | 34.90 | 65.49 | |||||||||
2000 | 37.67 | a | 49.07 | 56.48 | 69.17 | 74.84 | ----- | z | 94.13 | 95.77 | e | 79.67 | 64.90 | 42.70 | 35.67 | a | 63.64 | a | ||||||||
2001 | 33.13 | 40.14 | 58.03 | 62.07 | 77.29 | 84.83 | 93.00 | 96.48 | 84.87 | 66.84 | 53.40 | 35.97 | 65.50 | |||||||||||||
2002 | 37.29 | 42.07 | 52.13 | 64.77 | 75.00 | 86.17 | 98.81 | 88.71 | 82.63 | 66.42 | 50.73 | 43.16 | 65.66 | |||||||||||||
2003 | 41.16 | 48.18 | 59.61 | 62.23 | 72.77 | 85.83 | 97.39 | 93.97 | 82.57 | 71.48 | 46.87 | 43.69 | b | 67.15 | ||||||||||||
2004 | 32.07 | a | 40.45 | 63.19 | 68.37 | 73.97 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.61 | g | ||||
2005 | ----- | z | ----- | z | 59.88 | f | 63.93 | 73.65 | 81.00 | 96.00 | 93.94 | 80.43 | 63.87 | 43.57 | 30.48 | 69.65 | c | |||||||||
2006 | 40.74 | 45.11 | 52.45 | 64.67 | 77.55 | 87.83 | 100.81 | 91.81 | 82.17 | 64.84 | 50.70 | 37.27 | a | 66.33 | ||||||||||||
2007 | 38.35 | 47.82 | 61.03 | 65.20 | ----- | z | 84.23 | 97.81 | 89.87 | 79.63 | 63.13 | 50.53 | 38.71 | 65.12 | a | |||||||||||
2008 | 32.71 | 41.76 | 52.29 | 60.20 | 74.48 | 81.80 | 93.00 | 91.06 | 79.17 | 65.55 | 50.67 | 37.77 | 63.37 | |||||||||||||
2009 | 33.87 | a | 41.57 | ----- | z | ----- | z | ----- | z | ----- | z | 91.81 | 88.90 | 85.40 | ----- | z | 49.60 | 33.23 | 60.62 | e | ||||||
2010 | 39.23 | 44.89 | 57.32 | 61.43 | 67.00 | 78.37 | 92.00 | 89.58 | 81.55 | a | 72.80 | a | 50.10 | 36.17 | a | 64.20 | ||||||||||
2011 | 34.69 | b | 46.33 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.69 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 35.99 | 44.70 | 56.60 | 65.49 | 75.82 | 85.19 | 95.54 | 92.95 | 82.42 | 67.10 | 49.07 | 37.57 | 66.01 | |||||||||||||
S.D. | 4.88 | 5.46 | 3.48 | 3.84 | 3.96 | 3.98 | 3.73 | 3.90 | 3.57 | 3.06 | 3.58 | 4.54 | 1.77 | |||||||||||||
SKEW | -0.38 | -0.85 | -0.16 | 0.32 | 0.31 | 0.47 | -0.79 | 0.35 | 0.34 | 0.59 | -1.06 | -1.12 | -0.35 | |||||||||||||
MAX | 44.61 | 54.32 | 64.73 | 73.86 | 84.65 | 96.57 | 102.74 | 102.35 | 89.93 | 74.13 | 54.79 | 44.37 | 69.82 | |||||||||||||
MIN | 24.52 | 26.24 | 47.84 | 57.37 | 67.00 | 77.92 | 82.08 | 85.26 | 76.83 | 62.04 | 37.07 | 20.48 | 61.68 | |||||||||||||
YRS | 54 | 54 | 52 | 50 | 50 | 47 | 51 | 51 | 48 | 50 | 55 | 53 | 38 |