YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | 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 | ----- | 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 | ----- | z | 79.36 | p | 91.06 | 84.94 | 78.17 | 71.76 | f | 50.47 | 35.55 | 68.04 | g | |||||
1964 | 33.35 | 34.97 | 42.10 | 57.23 | 70.16 | 78.85 | d | 91.47 | a | 86.16 | 77.67 | 68.13 | 39.53 | 30.68 | 59.19 | |||||||||||
1965 | 31.29 | 34.50 | 38.42 | 56.23 | 67.27 | a | 75.50 | 85.25 | c | 82.77 | 67.52 | a | 67.68 | 51.13 | 34.06 | 57.64 | ||||||||||
1966 | 30.67 | a | 35.54 | 50.94 | 62.40 | 73.87 | a | 80.20 | 89.43 | a | 85.84 | 77.67 | 63.39 | 50.00 | 25.55 | 60.46 | ||||||||||
1967 | ----- | z | 37.79 | 51.84 | 58.55 | a | 66.00 | a | 73.83 | 86.48 | 86.87 | a | 76.83 | 63.65 | 50.83 | 24.63 | a | 61.57 | a | |||||||
1968 | 26.32 | 37.00 | 50.90 | a | 52.69 | a | 66.23 | 82.03 | ----- | z | 78.17 | a | 73.93 | a | 63.83 | a | 44.27 | 32.84 | 55.29 | a | ||||||
1969 | 36.32 | 35.43 | 40.10 | a | 61.40 | 76.87 | 75.33 | 88.45 | 89.60 | a | 78.63 | 52.26 | 46.10 | 39.39 | 59.99 | |||||||||||
1970 | 34.42 | 46.11 | 45.39 | 54.17 | 72.29 | 79.97 | 87.90 | 89.52 | 75.50 | b | 56.81 | 46.79 | a | 36.35 | 60.43 | |||||||||||
1971 | 35.26 | 39.11 | 49.45 | 60.41 | a | 67.81 | 83.27 | 90.82 | c | 89.70 | a | 73.70 | 59.29 | 38.20 | 29.35 | 59.70 | ||||||||||
1972 | 37.32 | 44.93 | 59.26 | 61.77 | 72.00 | a | 82.63 | 89.90 | 86.81 | 75.47 | 60.29 | 40.27 | 25.19 | 61.32 | ||||||||||||
1973 | 19.23 | 26.86 | 41.52 | 53.73 | 70.84 | 79.97 | 86.87 | 88.10 | a | 75.60 | 66.10 | 42.67 | 33.97 | 57.12 | ||||||||||||
1974 | 24.23 | 32.43 | 53.97 | 57.90 | 76.13 | 85.63 | 89.35 | 86.71 | 79.50 | 64.32 | 47.28 | a | 32.90 | 60.86 | ||||||||||||
1975 | 34.45 | 37.25 | 46.87 | 54.23 | 66.26 | 76.87 | 89.42 | 86.16 | 78.03 | 65.06 | 44.97 | 36.94 | 59.71 | |||||||||||||
1976 | 33.06 | 42.79 | 45.94 | 60.47 | 72.65 | 82.13 | 92.97 | 87.10 | 78.77 | 63.20 | a | 51.53 | 40.55 | 62.60 | ||||||||||||
1977 | 36.94 | 46.56 | a | 49.00 | 66.03 | 72.03 | 91.87 | 91.16 | 88.00 | 79.80 | 67.39 | 48.30 | 43.08 | e | 65.01 | |||||||||||
1978 | 35.29 | 39.25 | 52.10 | 62.90 | 69.58 | 85.67 | 94.00 | 90.03 | a | 79.03 | 69.61 | 41.57 | 25.45 | 62.04 | ||||||||||||
1979 | 22.45 | 35.29 | 45.48 | 61.67 | 70.16 | 85.67 | 92.03 | 88.52 | 85.87 | 68.65 | 41.13 | 36.52 | 61.12 | |||||||||||||
1980 | 31.74 | 40.24 | 47.71 | 61.07 | 67.71 | 87.63 | 93.74 | 90.10 | 78.93 | 63.77 | 50.13 | 46.93 | a | 63.31 | ||||||||||||
1981 | 45.84 | 48.04 | 51.61 | 68.86 | a | 69.97 | 88.28 | a | 92.81 | 89.71 | 81.93 | a | 59.81 | 50.20 | 41.35 | 65.70 | ||||||||||
1982 | 34.48 | 39.96 | 50.19 | 59.10 | a | 69.35 | 83.10 | a | 91.23 | 90.48 | 76.47 | 57.97 | a | 42.62 | a | 33.86 | b | 60.74 | ||||||||
1983 | 35.73 | a | 41.21 | 48.71 | 53.03 | 65.87 | 80.03 | 88.93 | a | 90.90 | 82.14 | a | 66.33 | a | 44.96 | d | 27.97 | b | 60.49 | |||||||
1984 | 19.80 | a | 31.14 | 44.07 | a | 57.97 | a | 75.61 | 80.80 | 91.20 | a | 87.45 | b | 79.33 | 57.10 | a | 47.15 | c | 33.26 | 58.74 | ||||||
1985 | 26.27 | a | 29.82 | 47.10 | b | 65.30 | 74.84 | 86.83 | a | 90.26 | 90.97 | 74.07 | a | 63.03 | b | 44.07 | a | 33.84 | 60.53 | |||||||
1986 | 36.45 | 44.69 | b | 57.87 | a | 60.52 | a | 69.97 | 88.50 | 88.23 | a | 89.55 | 72.58 | d | 61.10 | ----- | z | 39.37 | a | 64.44 | a | |||||
1987 | 35.13 | a | 42.07 | 48.50 | a | 66.77 | 72.86 | b | 88.13 | 89.32 | 87.26 | 81.20 | 69.03 | 45.70 | 33.47 | a | 63.29 | |||||||||
1988 | 28.58 | 40.25 | a | 49.03 | 64.82 | b | 75.90 | a | 90.23 | 95.14 | c | 90.55 | 77.90 | 71.32 | 46.33 | 32.97 | 63.59 | |||||||||
1989 | 29.94 | 29.00 | 55.00 | 67.10 | 75.77 | 83.27 | 93.60 | a | 85.45 | 79.07 | 64.52 | 50.68 | b | 37.03 | 62.54 | |||||||||||
1990 | 39.33 | a | 36.68 | 53.13 | 66.60 | 72.39 | 86.93 | a | 90.55 | 88.48 | 80.83 | a | 63.26 | 46.67 | 26.52 | 62.61 | ||||||||||
1991 | 24.40 | a | 40.39 | 47.77 | 57.27 | 72.83 | a | 84.69 | a | 90.45 | 88.77 | 78.37 | 64.55 | 42.62 | a | 29.83 | a | 60.16 | ||||||||
1992 | 28.45 | 41.64 | a | 53.93 | c | 69.48 | a | 76.45 | 83.33 | 86.73 | a | 88.81 | 79.23 | 67.68 | 40.17 | 31.48 | 62.28 | |||||||||
1993 | 28.07 | a | 30.00 | b | 47.71 | 58.61 | b | 72.26 | 80.62 | a | 88.24 | b | 85.50 | a | 79.27 | d | 59.87 | 40.63 | 34.23 | a | 58.75 | |||||
1994 | 39.74 | 39.57 | 56.16 | 63.43 | 78.35 | 90.93 | a | 94.21 | b | 91.55 | b | 80.50 | 59.13 | 41.34 | a | 34.69 | b | 64.13 | ||||||||
1995 | 33.32 | 47.39 | 53.17 | a | 58.57 | 63.81 | 77.72 | a | 88.17 | a | 90.13 | a | 78.46 | b | 62.97 | a | 52.70 | 40.48 | b | 62.24 | ||||||
1996 | 35.87 | a | 41.34 | 52.27 | a | 61.59 | c | 74.73 | a | 86.11 | b | 92.27 | a | 90.90 | 74.53 | 60.23 | a | 46.17 | a | 36.47 | a | 62.71 | ||||
1997 | 31.10 | a | 33.79 | 53.10 | a | 53.14 | b | 71.10 | a | 82.76 | a | 88.13 | a | 85.13 | 74.14 | a | 62.42 | 44.30 | 29.90 | 59.08 | ||||||
1998 | 39.10 | 39.75 | 49.94 | 56.79 | b | 70.80 | a | 76.34 | a | 89.13 | 87.80 | a | 80.55 | a | 61.79 | b | 47.40 | 34.13 | a | 61.13 | ||||||
1999 | 39.71 | 43.37 | a | 57.16 | 54.86 | a | 66.48 | b | 80.83 | a | 88.39 | 83.42 | 76.48 | e | 69.25 | c | 55.92 | e | 38.03 | b | 62.83 | |||||
2000 | 39.73 | e | 42.75 | e | 51.54 | c | 66.61 | b | 77.61 | c | 86.18 | b | 92.39 | 90.04 | c | 77.00 | f | 62.48 | f | 37.96 | b | 37.55 | b | 62.23 | b | |
2001 | 35.62 | e | 41.20 | c | 52.76 | b | 61.30 | 74.72 | f | 86.17 | 91.00 | a | 88.25 | c | 82.54 | b | 67.38 | b | 50.17 | f | 31.63 | d | 63.78 | b | ||
2002 | 31.74 | d | 39.05 | g | 49.62 | b | 66.04 | g | 75.31 | b | 90.12 | e | 96.04 | d | 89.74 | h | 73.21 | f | 61.00 | d | 42.75 | b | 31.28 | f | 63.80 | e |
2003 | 33.03 | a | 37.78 | e | 51.57 | h | 60.58 | f | 72.77 | 81.24 | a | 96.73 | e | 90.18 | c | 78.92 | d | 72.86 | b | 42.62 | a | 36.74 | d | 64.29 | b | |
2004 | 31.46 | c | 36.79 | a | 60.56 | d | 63.74 | g | 75.32 | c | 84.04 | f | 89.75 | c | 85.71 | g | 76.78 | g | 60.61 | h | 43.96 | f | 38.33 | g | 58.78 | g |
2005 | 38.45 | 42.00 | a | 47.52 | b | 59.97 | 72.59 | d | 79.79 | b | 93.33 | a | 87.41 | b | 77.27 | 64.77 | 47.77 | 35.68 | 62.21 | |||||||
2006 | 38.62 | e | 43.07 | 47.86 | b | 64.00 | k | 76.58 | 88.50 | 93.00 | 85.93 | d | 74.59 | c | 58.81 | 47.93 | a | 32.39 | c | 62.48 | a | |||||
2007 | 26.52 | b | 43.57 | 57.27 | a | 63.40 | 74.48 | 88.73 | ----- | z | ----- | z | ----- | z | 63.81 | j | 55.00 | d | 27.83 | m | 58.42 | e | ||||
2008 | 26.00 | i | 35.55 | i | 47.16 | 57.97 | 68.03 | 79.68 | k | 93.13 | a | 87.00 | g | 78.11 | b | 66.90 | a | 53.43 | 33.70 | a | 62.30 | d | ||||
2009 | 37.37 | a | 42.93 | 54.90 | 59.68 | b | 73.63 | a | 76.52 | c | 90.31 | b | 85.33 | a | 78.93 | a | 56.27 | a | 49.03 | 23.23 | 60.68 | |||||
2010 | 27.68 | 30.93 | 48.87 | 60.20 | 66.29 | 82.67 | 90.55 | 85.87 | 81.77 | 65.39 | 43.70 | 36.42 | 60.03 | |||||||||||||
2011 | 24.23 | 31.11 | 48.42 | 56.93 | 64.03 | a | 81.47 | 87.19 | 89.61 | 79.43 | 61.55 | 46.87 | 27.76 | j | 60.99 | a | ||||||||||
2012 | 38.64 | f | 39.44 | t | 57.87 | 66.53 | 76.10 | 89.67 | 89.74 | 89.77 | 78.57 | 61.81 | 51.38 | a | 30.32 | 69.18 | b | |||||||||
2013 | 17.87 | 30.25 | 48.32 | 54.37 | 70.06 | 86.70 | 90.65 | 85.65 | 74.81 | d | ----- | z | 41.57 | 22.61 | c | 56.62 | a | |||||||||
2014 | 33.52 | 41.86 | 52.84 | 58.73 | 72.35 | 84.10 | 91.42 | 80.61 | 76.50 | 64.55 | 44.50 | 35.00 | 61.33 | |||||||||||||
2015 | 36.06 | 47.39 | 57.52 | 61.50 | 65.10 | 85.77 | 85.97 | 85.84 | l | ----- | z | ----- | z | ----- | z | ----- | z | 62.76 | e | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.36 | 38.73 | 50.40 | 60.29 | 71.52 | 83.48 | 90.56 | 87.64 | 77.90 | 63.53 | 46.11 | 33.63 | 61.25 | |||||||||||||
S.D. | 6.01 | 5.39 | 4.86 | 4.41 | 3.86 | 4.49 | 2.58 | 2.75 | 3.08 | 4.24 | 4.41 | 5.20 | 1.93 | |||||||||||||
SKEW | -0.51 | -0.33 | -0.14 | 0.18 | -0.25 | -0.18 | 0.21 | -1.17 | -0.54 | -0.18 | 0.18 | -0.09 | 0.12 | |||||||||||||
MAX | 45.84 | 48.04 | 60.56 | 69.48 | 78.35 | 91.87 | 96.73 | 91.55 | 85.87 | 72.86 | 55.92 | 46.93 | 65.70 | |||||||||||||
MIN | 17.87 | 26.86 | 38.42 | 52.69 | 63.81 | 73.83 | 85.25 | 78.17 | 67.52 | 52.26 | 37.96 | 22.61 | 57.12 | |||||||||||||
YRS | 49 | 49 | 51 | 48 | 51 | 50 | 51 | 48 | 48 | 47 | 49 | 48 | 37 |