YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.13 | 78.03 | 73.83 | 53.23 | 36.70 | g | 20.42 | 60.93 | g | |||||
1949 | 11.81 | 13.96 | 29.32 | 58.27 | 66.58 | 73.67 | 78.52 | 83.16 | 67.55 | a | 53.06 | 43.13 | 15.71 | 49.56 | ||||||||||||
1950 | -2.68 | 16.86 | 28.35 | 40.37 | 58.58 | 78.43 | 79.45 | 79.77 | 72.03 | 60.23 | 31.87 | 17.40 | a | 46.72 | ||||||||||||
1951 | 13.10 | 21.43 | 24.77 | 51.73 | 71.97 | 72.33 | 83.32 | 79.00 | f | 66.33 | 55.28 | b | 33.43 | 15.35 | 46.28 | a | ||||||||||
1952 | 13.30 | a | 26.38 | 28.00 | 63.00 | 69.29 | c | 79.83 | 83.10 | b | 81.74 | 77.50 | 58.45 | 41.11 | c | 28.06 | 54.15 | |||||||||
1953 | 25.81 | 30.86 | 38.41 | b | 49.59 | a | 65.87 | 75.77 | 81.23 | 86.29 | 77.04 | b | 69.45 | b | 47.30 | 30.93 | a | 56.54 | ||||||||
1954 | 10.97 | 41.46 | 35.39 | 55.17 | 64.45 | 73.67 | 84.39 | 81.35 | 68.50 | 58.00 | a | 47.50 | 33.39 | 54.52 | ||||||||||||
1955 | 24.06 | 18.00 | 31.97 | 63.73 | 73.69 | b | 76.17 | 85.90 | 88.26 | 73.37 | 64.84 | 27.27 | 15.39 | 53.55 | ||||||||||||
1956 | 18.97 | 20.45 | 31.55 | 48.80 | 67.57 | a | 82.93 | 81.00 | 83.77 | 71.50 | 65.65 | 40.07 | 29.13 | 53.45 | ||||||||||||
1957 | 14.71 | 24.14 | 39.74 | 55.27 | 69.84 | 77.24 | a | 89.06 | 80.35 | 69.57 | 55.90 | 38.07 | 33.48 | 53.95 | ||||||||||||
1958 | 28.65 | 23.04 | 37.71 | 57.72 | a | 73.97 | 73.36 | b | 79.83 | b | 86.34 | b | 77.18 | b | 63.80 | a | 38.84 | e | 23.24 | b | 55.31 | |||||
1959 | 14.93 | a | 21.42 | b | ----- | z | 59.92 | e | 67.40 | a | 83.00 | 86.77 | 89.19 | 72.90 | 51.77 | 29.41 | a | 32.72 | b | 55.41 | a | |||||
1960 | 19.13 | a | 21.86 | 27.65 | 53.55 | a | 70.55 | 75.20 | 88.03 | 86.69 | b | 76.67 | 61.61 | 41.80 | 24.19 | 53.91 | ||||||||||
1961 | 23.00 | 28.64 | 43.19 | 50.73 | 69.46 | c | 87.43 | 84.00 | 88.57 | h | 68.67 | 61.97 | 43.93 | 20.32 | 52.85 | a | ||||||||||
1962 | 19.43 | a | 16.57 | 32.10 | 54.77 | 63.84 | 75.30 | 78.84 | 83.45 | 69.79 | a | 63.75 | c | 45.07 | 29.50 | a | 52.70 | |||||||||
1963 | 14.84 | 25.79 | 47.56 | d | 57.37 | 67.81 | 81.10 | 86.32 | 83.57 | a | 77.77 | 72.61 | c | 45.70 | 20.07 | a | 56.71 | |||||||||
1964 | 27.32 | 32.10 | 34.10 | 56.18 | b | 72.37 | d | 74.79 | b | 84.71 | 79.27 | a | 69.70 | 61.03 | 39.28 | a | 14.07 | b | 53.74 | |||||||
1965 | 11.86 | b | 24.73 | b | 27.50 | a | 51.40 | 69.04 | c | 76.30 | 81.32 | 80.94 | 57.86 | a | 62.59 | d | 39.73 | 32.97 | b | 51.35 | ||||||
1966 | 5.42 | 21.46 | 42.66 | b | 48.48 | e | 67.86 | b | 78.74 | c | 86.24 | b | 79.48 | b | 73.52 | a | 60.90 | a | 33.29 | b | 24.83 | b | 51.91 | |||
1967 | 22.65 | 20.07 | 38.31 | b | 48.73 | 65.86 | b | 75.64 | b | 86.86 | b | 86.52 | d | 76.59 | a | 58.46 | r | 40.70 | g | 25.55 | b | 54.68 | b | |||
1968 | 18.93 | b | 22.55 | 46.10 | a | 56.90 | 63.65 | 74.41 | a | 81.87 | a | 81.43 | a | 69.88 | e | 58.29 | c | 42.07 | b | 17.10 | b | 52.77 | ||||
1969 | 6.03 | 21.25 | 27.19 | 54.53 | 70.73 | a | 70.07 | c | 80.93 | b | 89.13 | 74.00 | g | 51.83 | a | 41.53 | 26.42 | 49.06 | a | |||||||
1970 | 10.81 | 25.96 | 29.45 | 47.74 | c | 63.90 | b | 82.28 | a | 86.38 | b | 88.00 | i | 74.60 | 60.88 | g | 36.93 | 22.43 | a | 48.05 | b | |||||
1971 | 9.17 | b | 22.07 | a | 35.59 | b | 56.04 | d | 66.71 | 78.03 | 79.32 | c | 86.55 | 71.53 | 57.32 | 36.17 | 20.77 | 51.61 | ||||||||
1972 | 15.13 | 18.10 | 35.87 | a | 50.37 | 72.39 | 80.87 | 81.81 | 85.00 | 70.53 | 55.27 | a | 34.40 | 17.00 | 51.39 | |||||||||||
1973 | 25.06 | 31.54 | 43.74 | 54.21 | b | 71.71 | 80.00 | 85.87 | 89.16 | 69.20 | 62.06 | 32.50 | 19.20 | a | 55.36 | |||||||||||
1974 | 16.55 | 7.38 | t | 32.16 | 52.97 | 62.48 | 79.13 | 88.45 | 77.74 | 72.03 | 64.68 | 38.83 | 30.65 | 55.97 | a | |||||||||||
1975 | 24.03 | 21.75 | 33.50 | a | 40.67 | 68.42 | 75.80 | 85.77 | 81.07 | a | 69.28 | a | 61.74 | 42.73 | 28.20 | a | 52.75 | |||||||||
1976 | 21.06 | 33.86 | 36.28 | b | 59.07 | 73.35 | 80.83 | a | 86.68 | 87.48 | 78.60 | 54.81 | 38.20 | 21.65 | 55.99 | |||||||||||
1977 | 8.00 | 31.93 | 43.74 | 65.70 | 78.40 | a | 80.23 | 83.43 | a | 75.48 | 66.97 | a | 61.00 | 35.70 | 14.28 | b | 53.74 | |||||||||
1978 | 7.20 | f | 15.77 | b | 36.27 | a | 52.41 | a | 73.64 | f | 78.24 | e | 83.30 | d | 84.38 | e | 77.62 | f | 63.12 | o | 35.23 | d | 17.97 | a | 50.45 | d |
1979 | 7.07 | a | 10.00 | a | 31.63 | a | 42.34 | a | 59.36 | c | 76.43 | 83.37 | a | 78.57 | c | 77.90 | a | 55.73 | a | 35.71 | b | 36.64 | f | 50.74 | a | |
1980 | 17.07 | a | 22.74 | b | 33.52 | 66.30 | 76.74 | 79.00 | 85.16 | 75.27 | a | 67.43 | b | 54.20 | f | 44.61 | b | 26.93 | d | 54.07 | a | |||||
1981 | 24.39 | c | 30.04 | c | 47.65 | e | 59.55 | j | 67.69 | b | 75.48 | a | 85.36 | q | 83.48 | f | 72.12 | d | 58.96 | e | 47.36 | b | 22.33 | g | 52.96 | d |
1982 | 0.42 | g | 19.04 | e | 34.72 | f | 52.08 | d | 65.79 | g | 72.67 | c | 85.15 | d | 81.96 | g | 71.95 | i | 57.77 | i | 33.61 | l | 29.38 | g | 57.23 | h |
1983 | 24.90 | u | 33.05 | f | 35.56 | f | 49.75 | b | 65.29 | c | 77.47 | 86.82 | i | 91.36 | c | 68.92 | e | 54.52 | b | 38.19 | c | 8.00 | c | 56.69 | d | |
1984 | 23.10 | a | 35.04 | f | 32.50 | i | 53.71 | f | 68.66 | b | 76.85 | c | 85.20 | a | 87.81 | d | 67.92 | e | 55.69 | b | 37.96 | c | 24.35 | h | 62.90 | d |
1985 | 19.33 | a | 24.07 | 44.22 | d | 63.96 | c | 75.87 | a | 73.63 | c | 87.29 | g | 78.32 | c | 64.31 | d | 56.61 | 26.70 | c | 14.37 | l | 52.70 | b | ||
1986 | 28.69 | e | 22.35 | e | 48.96 | d | 54.16 | e | 71.27 | a | 81.88 | d | 84.37 | d | 80.33 | d | 65.41 | a | 60.37 | d | 34.40 | j | 32.72 | f | 59.78 | b |
1987 | 28.42 | e | 36.09 | e | 37.07 | d | 68.42 | d | 74.85 | e | 82.23 | d | 84.00 | d | 79.54 | e | 74.88 | e | 59.64 | i | 48.64 | h | 32.08 | e | 59.76 | b |
1988 | 18.78 | d | 23.33 | e | 41.93 | b | 64.19 | d | 75.97 | a | 92.00 | f | 92.59 | d | 88.00 | f | 73.20 | 58.32 | f | 36.24 | e | 29.28 | m | 53.28 | d | |
1989 | 28.65 | h | 18.65 | e | 30.44 | f | 56.10 | a | 72.77 | a | 78.18 | b | 89.63 | a | 84.69 | b | 74.00 | b | 66.00 | f | 40.87 | g | 18.08 | g | 67.72 | e |
1990 | 36.52 | f | 35.38 | d | 44.69 | b | 59.12 | e | 69.97 | b | 78.62 | a | 82.19 | e | 85.92 | g | 75.04 | g | 64.00 | f | 46.55 | h | 27.40 | k | 61.66 | f |
1991 | 20.52 | f | 38.77 | f | 45.54 | e | 60.27 | d | 71.19 | d | 80.15 | d | 84.23 | e | 87.76 | f | 72.81 | d | 56.48 | d | 33.40 | j | 31.12 | n | 67.24 | e |
1992 | 32.24 | f | 36.15 | i | 45.00 | e | 55.55 | h | 74.26 | l | 75.33 | f | 74.86 | j | 79.00 | i | 70.09 | g | 56.00 | j | 32.95 | k | 19.83 | m | 45.00 | k |
1993 | 18.56 | o | 27.36 | n | 38.88 | o | 57.88 | v | 71.37 | a | 73.27 | 76.10 | 80.16 | 69.67 | 60.39 | 36.76 | a | 26.03 | 61.72 | d | ||||||
1994 | 6.84 | 17.00 | 43.77 | a | 58.60 | 74.37 | a | 78.77 | 78.32 | 80.74 | 75.77 | 58.58 | 41.07 | 29.00 | 53.57 | |||||||||||
1995 | 18.52 | 25.54 | 33.63 | a | 49.77 | 66.06 | 80.47 | 80.61 | 83.68 | 73.30 | 56.26 | 32.80 | 21.65 | 51.86 | ||||||||||||
1996 | 14.39 | 26.41 | 32.00 | 49.83 | 66.35 | 80.93 | 82.03 | a | 83.94 | 72.37 | 60.58 | 27.03 | 14.71 | 50.88 | ||||||||||||
1997 | 10.93 | a | 29.18 | 33.87 | 49.83 | 70.03 | ----- | z | 80.75 | k | 84.39 | 76.60 | 60.68 | 34.50 | 33.68 | 48.37 | b | |||||||||
1998 | 20.13 | 33.93 | 35.42 | 63.37 | 73.68 | 74.60 | 87.03 | 85.80 | u | 75.47 | o | 60.97 | 37.20 | 30.68 | 51.70 | b | ||||||||||
1999 | 18.38 | b | 34.07 | 43.35 | 56.13 | 68.81 | 77.17 | g | 84.56 | d | 82.65 | 68.86 | a | 60.43 | j | 53.83 | f | ----- | z | 57.10 | d | |||||
2000 | 24.10 | j | 34.50 | i | 48.73 | i | 57.79 | f | 71.96 | h | 74.70 | g | 83.10 | a | 81.26 | h | 72.20 | 61.77 | i | 31.85 | j | 11.00 | 55.43 | i | ||
2001 | 28.23 | 17.32 | 37.06 | 56.83 | 71.42 | 75.72 | a | ----- | z | 84.63 | a | 69.38 | n | 54.59 | b | 49.85 | j | 29.32 | 50.57 | c | ||||||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | 64.40 | a | 84.69 | n | 85.71 | j | 80.42 | 75.57 | g | 39.71 | n | 41.33 | l | 30.10 | a | 58.31 | i | |
2003 | 19.95 | j | 20.17 | j | 34.60 | a | 58.67 | 65.71 | 74.20 | 80.52 | 85.52 | 72.20 | 64.81 | 32.50 | 30.32 | 59.90 | b | |||||||||
2004 | 13.35 | e | 25.31 | 40.57 | c | 58.57 | 63.68 | 70.76 | a | 79.14 | i | 73.04 | h | 71.73 | 57.68 | 48.60 | 29.10 | 47.93 | b | |||||||
2005 | 18.20 | a | 31.72 | c | 40.58 | g | 62.30 | 63.58 | 77.03 | 82.20 | f | 80.68 | 77.07 | 61.26 | 43.90 | 28.52 | 54.43 | b | ||||||||
2006 | 35.36 | t | 23.89 | 37.26 | 63.30 | 69.45 | 76.00 | 87.55 | 84.32 | 71.43 | 54.20 | a | 45.31 | a | 34.15 | r | 61.27 | b | ||||||||
2007 | ----- | z | 17.23 | f | 45.00 | 52.37 | 72.70 | a | 80.07 | 83.42 | 79.55 | 75.23 | 60.84 | 43.77 | 21.59 | d | 61.45 | b | ||||||||
2008 | ----- | z | ----- | z | ----- | z | 54.45 | s | 65.43 | c | 73.36 | b | 81.61 | 82.32 | ----- | z | ----- | z | ----- | z | ----- | z | 75.68 | h | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 17.13 | 24.49 | 37.10 | 55.31 | 69.01 | 77.38 | 83.70 | 82.95 | 71.84 | 59.37 | 38.54 | 23.94 | 53.12 | |||||||||||||
S.D. | 7.17 | 6.50 | 6.36 | 6.29 | 4.28 | 3.47 | 3.30 | 3.72 | 4.06 | 4.41 | 5.62 | 6.78 | 2.22 | |||||||||||||
SKEW | -0.34 | 0.35 | 0.07 | -0.18 | -0.12 | 0.27 | 0.11 | 0.12 | -0.67 | 0.56 | -0.22 | -0.36 | -0.77 | |||||||||||||
MAX | 28.69 | 41.46 | 48.96 | 68.42 | 78.40 | 87.43 | 92.59 | 91.36 | 78.60 | 72.61 | 48.60 | 33.68 | 56.71 | |||||||||||||
MIN | -2.68 | 10.00 | 24.77 | 40.37 | 58.58 | 70.07 | 76.10 | 75.27 | 57.86 | 51.77 | 26.70 | 8.00 | 46.72 | |||||||||||||
YRS | 46 | 49 | 50 | 53 | 56 | 54 | 52 | 49 | 52 | 47 | 47 | 47 | 25 |