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 | 82.12 | f | 72.20 | 51.39 | 33.97 | 34.68 | 48.06 | h | ||||
1960 | 26.42 | 29.66 | 31.13 | 54.07 | 62.52 | 73.07 | a | 79.40 | a | 77.48 | 69.90 | 57.26 | 44.33 | 25.84 | 52.59 | |||||||||||
1961 | 24.03 | 33.93 | 39.84 | 48.97 | 64.90 | b | 76.66 | a | 79.19 | 78.87 | 69.87 | 59.42 | 40.17 | 27.86 | i | 55.99 | a | |||||||||
1962 | 17.50 | g | 22.26 | a | 35.74 | 52.07 | 69.20 | a | 74.13 | 76.29 | 78.87 | 65.80 | 58.93 | a | 41.83 | 27.43 | a | 54.78 | a | |||||||
1963 | 12.52 | 20.14 | 40.29 | 59.13 | 63.32 | 80.53 | 82.16 | 76.90 | 69.27 | 69.39 | 46.47 | 21.84 | 53.50 | |||||||||||||
1964 | 28.35 | 32.17 | 37.13 | a | 54.63 | 71.84 | 76.03 | 82.13 | a | 73.74 | 65.28 | a | 56.74 | 45.73 | 23.77 | 53.96 | ||||||||||
1965 | 20.84 | 23.64 | 31.32 | 47.10 | 69.71 | 74.17 | a | 77.74 | 75.19 | 62.50 | 58.35 | 42.30 | 32.19 | 51.26 | ||||||||||||
1966 | 18.35 | 26.93 | 40.65 | 49.83 | 61.97 | 78.48 | a | 83.13 | 75.06 | 71.92 | e | 57.82 | c | 38.90 | 27.94 | 52.58 | ||||||||||
1967 | 25.55 | 21.89 | 36.68 | 52.80 | 60.16 | 73.97 | 77.55 | 74.55 | 69.57 | 54.65 | 37.50 | 29.13 | 51.17 | |||||||||||||
1968 | 21.84 | 24.17 | 46.19 | 55.37 | 62.52 | 74.00 | 78.70 | a | 77.13 | 68.73 | 60.19 | 41.77 | d | 31.53 | n | 55.51 | a | |||||||||
1969 | ----- | z | 30.64 | 37.40 | a | 55.70 | 68.16 | 66.64 | b | 78.53 | a | 82.23 | 71.04 | c | 54.03 | a | 39.61 | g | 27.58 | 57.20 | b | |||||
1970 | 16.06 | 28.64 | 36.20 | a | 54.07 | 65.72 | b | 76.15 | c | 83.10 | 79.97 | 67.64 | b | 58.77 | 39.27 | 27.45 | 52.75 | |||||||||
1971 | 18.03 | 23.86 | 34.03 | 54.43 | 65.17 | a | 78.55 | a | 76.16 | 75.26 | 70.00 | a | 62.97 | 41.47 | 28.65 | 52.38 | ||||||||||
1972 | 19.07 | a | 23.28 | 33.77 | 47.83 | 71.90 | 74.73 | 77.55 | 75.57 | a | 67.00 | 52.93 | a | 38.41 | c | 22.60 | a | 50.39 | ||||||||
1973 | 26.90 | 28.61 | 46.70 | a | 46.61 | g | 60.00 | d | 75.58 | d | 81.33 | a | 78.83 | a | 69.64 | b | 63.37 | a | 40.48 | c | 27.32 | 54.43 | a | |||
1974 | 23.07 | a | 26.16 | c | 37.00 | 55.50 | 62.97 | a | 66.14 | w | ----- | z | 77.60 | p | 65.47 | 57.13 | 43.07 | 31.35 | 44.63 | c | ||||||
1975 | 25.29 | 26.07 | 34.48 | 46.97 | 72.00 | 73.28 | a | 81.94 | 78.19 | 64.70 | 60.67 | a | 47.40 | 28.10 | 53.26 | |||||||||||
1976 | 21.23 | 32.97 | 37.74 | 57.50 | 65.94 | 80.10 | 83.68 | 79.06 | 69.52 | a | 54.10 | 36.73 | 21.16 | 53.31 | ||||||||||||
1977 | 13.96 | c | 31.04 | 43.81 | 60.63 | 77.27 | a | 74.62 | a | 84.58 | e | 74.94 | 67.00 | a | 57.90 | 40.90 | a | 28.83 | h | 56.97 | a | |||||
1978 | 21.35 | e | 23.16 | c | 39.41 | b | 52.17 | a | 68.97 | a | 76.50 | b | 76.36 | c | 78.00 | e | 70.69 | d | 57.20 | f | 41.00 | a | 26.28 | b | 52.17 | a |
1979 | 15.00 | e | 20.62 | b | 35.74 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.28 | f | 40.00 | g | 34.61 | c | 26.49 | h |
1980 | 24.48 | d | 26.81 | b | 35.69 | e | 59.27 | h | 72.67 | d | 74.48 | e | 81.89 | c | 77.89 | d | 68.78 | c | 54.30 | h | 44.91 | h | 27.32 | l | 57.84 | d |
1981 | 25.15 | e | 32.32 | c | 44.79 | b | 55.28 | a | 67.86 | b | 76.32 | b | 79.17 | h | 78.42 | g | 67.64 | h | 52.96 | h | 47.71 | b | 28.03 | a | 47.18 | d |
1982 | 15.96 | c | 25.18 | f | 36.54 | e | 51.21 | a | 71.08 | f | 69.10 | j | 81.50 | g | 76.29 | j | 66.19 | c | 58.11 | d | 42.00 | j | 33.60 | k | 45.60 | g |
1983 | 28.28 | b | 34.96 | c | 39.50 | g | 51.00 | c | 61.41 | b | 78.31 | d | 85.42 | g | 83.00 | f | 70.48 | g | 56.68 | c | 42.74 | g | 16.04 | c | 46.67 | e |
1984 | 21.76 | b | 37.00 | g | 33.82 | c | 56.80 | 64.19 | e | 77.17 | g | 79.24 | j | 80.67 | g | 67.73 | h | 57.92 | f | 43.63 | k | 30.18 | n | 44.14 | h | |
1985 | 20.35 | e | 27.59 | f | 43.35 | e | 59.26 | c | 70.54 | c | 72.86 | h | 79.82 | c | 76.04 | f | 67.85 | c | 57.31 | e | 35.68 | e | 18.33 | g | 54.27 | d |
1986 | 23.54 | e | 26.62 | g | 41.00 | g | 58.60 | 70.17 | b | 76.14 | i | 81.00 | c | 74.22 | d | 66.68 | b | 55.96 | d | 36.71 | b | 27.96 | f | 58.36 | d | |
1987 | 27.50 | a | 35.07 | 44.03 | 60.87 | 68.03 | b | 79.41 | a | 82.04 | c | 76.00 | c | 70.93 | a | 51.11 | c | 42.52 | c | 31.68 | 55.77 | |||||
1988 | 18.68 | 23.62 | c | 37.07 | a | 55.72 | a | 72.93 | a | 82.73 | 85.14 | c | 82.62 | b | 71.32 | e | 46.92 | g | 39.65 | d | 28.69 | e | 54.38 | a | ||
1989 | 28.57 | a | 20.14 | 33.35 | 52.07 | a | 65.41 | b | 73.77 | 81.50 | c | 78.87 | 70.91 | g | 59.62 | b | 37.32 | b | 19.68 | c | 50.03 | a | ||||
1990 | 32.71 | 30.63 | a | 42.76 | b | 58.07 | a | 63.90 | 76.32 | b | 78.07 | c | 77.31 | e | 71.12 | f | 56.38 | e | 46.14 | a | 26.40 | a | 53.52 | a | ||
1991 | 19.58 | 31.73 | b | 39.61 | 56.86 | a | 67.68 | c | 79.32 | e | 77.56 | d | 79.23 | e | 65.80 | e | 55.05 | i | 35.23 | 28.71 | c | 52.85 | a | |||
1992 | 26.17 | a | 32.97 | 37.58 | 49.61 | b | 67.66 | b | 73.55 | a | 73.27 | p | 73.85 | d | 64.50 | 51.68 | f | 36.65 | d | 28.32 | 49.09 | b | ||||
1993 | 23.84 | 25.86 | 38.30 | a | 49.48 | a | 65.00 | b | 70.39 | l | 76.92 | g | 77.22 | d | 63.42 | d | 55.89 | c | 38.15 | d | 27.21 | b | 46.44 | b | ||
1994 | 13.67 | d | 21.92 | c | 40.90 | a | 53.72 | a | 68.39 | c | 79.40 | 78.64 | q | 76.62 | g | 68.57 | p | 61.54 | e | 48.12 | f | 33.00 | k | 48.51 | e | |
1995 | 25.71 | c | 25.74 | a | 44.54 | c | 47.90 | 66.15 | d | 82.11 | k | 81.79 | b | 81.24 | n | 70.17 | l | 59.64 | f | 32.41 | m | 24.17 | m | 48.64 | f | |
1996 | 21.12 | f | 24.48 | 30.90 | 48.57 | 63.29 | 75.00 | e | 76.81 | d | 78.43 | j | 68.38 | i | 61.00 | l | 36.50 | n | 27.40 | k | 53.18 | f | ||||
1997 | 20.56 | d | 30.82 | 37.55 | 54.14 | a | 59.33 | d | 78.26 | k | 80.25 | w | 72.57 | q | 70.91 | s | 55.81 | o | 36.00 | q | 38.40 | p | 40.48 | g | ||
1998 | 26.00 | m | 37.53 | m | 44.57 | j | 58.88 | d | 73.21 | l | 72.06 | n | 81.24 | n | 80.93 | q | 73.53 | o | 59.21 | q | 43.00 | t | 48.83 | y | 58.88 | k |
1999 | 15.36 | t | 35.38 | l | 44.29 | n | 61.60 | e | 71.40 | p | 73.72 | l | 80.94 | n | 76.07 | p | 68.27 | o | 59.69 | r | 55.06 | n | 38.71 | x | 61.60 | k |
2000 | 25.77 | r | 41.92 | p | 49.04 | f | 54.38 | a | 72.30 | k | 73.93 | o | 78.57 | q | 78.44 | o | 69.23 | q | 63.73 | p | 44.38 | q | 22.50 | w | 54.38 | k |
2001 | 31.13 | p | 27.17 | p | 38.94 | m | 58.22 | g | 70.60 | k | 76.08 | q | 83.00 | o | 82.24 | n | 69.41 | m | 59.93 | q | 47.00 | q | 41.29 | x | ----- | z |
2002 | 31.41 | n | 33.85 | o | 36.59 | n | 52.08 | e | 64.05 | i | 77.17 | l | 82.95 | k | 76.82 | i | 74.12 | n | 54.12 | n | 42.10 | j | 38.00 | u | 52.08 | k |
2003 | 24.35 | n | 22.50 | l | 34.29 | q | 45.33 | r | 64.87 | p | 74.00 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.12 | 27.26 | 38.22 | 53.97 | 66.63 | 76.06 | 80.18 | 77.30 | 68.04 | 57.81 | 40.60 | 27.14 | 52.74 | |||||||||||||
S.D. | 4.85 | 4.54 | 4.25 | 4.05 | 4.19 | 3.12 | 2.67 | 2.35 | 2.64 | 3.79 | 3.77 | 4.25 | 1.42 | |||||||||||||
SKEW | -0.15 | 0.12 | 0.28 | 0.01 | 0.31 | -0.42 | 0.07 | 0.40 | -0.30 | 0.78 | 0.28 | -0.57 | 0.33 | |||||||||||||
MAX | 32.71 | 35.07 | 46.70 | 61.60 | 77.27 | 82.73 | 85.14 | 82.62 | 72.20 | 69.39 | 47.71 | 34.68 | 55.77 | |||||||||||||
MIN | 12.52 | 20.14 | 30.90 | 46.97 | 59.33 | 66.64 | 76.16 | 73.74 | 62.50 | 51.11 | 33.97 | 16.04 | 50.39 | |||||||||||||
YRS | 35 | 34 | 36 | 39 | 36 | 29 | 28 | 27 | 29 | 28 | 29 | 27 | 12 |