YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 93.50 | w | 94.13 | 87.14 | a | 76.84 | 59.47 | 40.26 | 71.57 | g | ||||
1927 | 45.52 | 56.21 | 60.61 | 72.57 | 81.94 | 86.59 | c | 91.12 | o | 89.78 | h | 81.76 | a | 72.68 | 59.87 | 42.13 | 65.99 | b | ||||||||
1928 | 48.45 | 51.79 | 62.81 | 66.47 | 80.06 | 87.40 | 94.13 | 87.90 | 86.53 | 72.94 | 53.60 | 44.16 | 69.69 | |||||||||||||
1929 | 46.32 | 47.54 | 61.70 | a | ----- | z | 80.48 | 90.77 | 93.87 | 89.60 | a | ----- | z | 73.13 | 54.73 | 50.81 | 68.89 | b | ||||||||
1930 | 39.20 | a | 55.39 | 61.32 | 75.73 | 78.06 | 92.50 | 93.32 | 91.48 | 84.50 | 72.52 | 55.37 | 42.71 | 70.18 | ||||||||||||
1931 | 44.23 | 54.43 | 59.77 | 71.90 | 75.87 | 91.77 | 95.45 | 93.42 | 86.10 | 74.68 | 48.73 | 32.19 | 69.05 | |||||||||||||
1932 | 35.55 | 48.28 | 54.07 | a | 67.80 | 76.61 | 89.73 | 93.00 | 92.19 | 85.07 | a | 76.77 | 60.21 | a | 31.00 | g | 70.84 | a | ||||||||
1933 | 31.16 | 40.61 | 63.19 | 65.67 | 74.94 | 92.07 | 97.77 | 92.97 | 89.10 | 76.19 | 61.50 | 50.74 | 69.66 | |||||||||||||
1934 | 50.13 | a | ----- | z | 72.48 | 78.00 | 85.20 | a | 91.50 | 95.68 | f | 93.35 | 85.73 | 77.42 | 61.00 | 46.16 | 74.10 | b | ||||||||
1935 | 49.10 | 54.89 | 62.97 | 68.34 | a | 73.23 | 91.07 | 93.90 | 90.77 | a | ----- | z | 74.90 | ----- | z | 45.87 | 70.50 | b | ||||||||
1936 | 47.48 | 51.69 | 64.26 | 74.00 | t | 83.90 | 81.14 | w | 98.87 | p | 95.55 | 85.77 | 75.23 | 64.33 | 48.65 | 68.54 | c | |||||||||
1937 | 33.42 | 48.68 | 60.83 | a | 74.60 | 88.87 | 91.76 | a | 95.03 | 95.03 | 88.30 | 74.32 | 62.93 | 46.32 | 71.68 | |||||||||||
1938 | 49.14 | c | 53.93 | 50.00 | a | 67.10 | 88.45 | ----- | z | 91.59 | n | ----- | z | 85.21 | k | 73.91 | t | 58.25 | r | 48.32 | 59.49 | f | ||||
1939 | 45.58 | 42.54 | 63.32 | 74.45 | a | ----- | z | 90.33 | 95.87 | 93.87 | a | 84.76 | a | 71.90 | 58.97 | 52.62 | o | 72.16 | b | |||||||
1940 | 41.77 | 49.80 | d | 64.29 | 70.80 | 82.68 | 91.80 | 94.94 | 93.61 | 85.87 | 76.23 | 56.00 | 42.47 | a | 70.85 | |||||||||||
1941 | 43.16 | 50.00 | 60.50 | e | 64.32 | e | 80.72 | f | 85.92 | d | 92.77 | e | 91.38 | g | 82.95 | h | 70.62 | e | 56.47 | 47.77 | 63.50 | c | ||||
1942 | 43.55 | 47.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.36 | j | ||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.43 | w | 95.10 | 93.23 | 85.67 | 72.39 | 52.60 | 44.16 | 73.86 | f | ||||||
1945 | 44.10 | 51.86 | 55.84 | 65.43 | 80.26 | 86.57 | 94.97 | 93.13 | 83.93 | 70.29 | 57.34 | a | 37.97 | 68.47 | ||||||||||||
1946 | 42.87 | a | 52.61 | 60.47 | a | 74.53 | 76.45 | 92.63 | 94.00 | 89.80 | a | 84.77 | 66.65 | 51.80 | 49.39 | 69.66 | ||||||||||
1947 | 36.48 | 54.18 | 61.58 | 68.90 | 81.29 | 86.30 | 95.90 | a | 87.45 | 85.00 | 71.35 | 49.27 | 42.94 | 68.39 | ||||||||||||
1948 | 44.39 | 46.89 | b | 52.42 | 72.27 | 81.06 | 87.50 | 94.29 | 91.32 | 85.83 | 69.19 | 49.20 | 45.71 | 68.34 | ||||||||||||
1949 | 37.41 | b | 42.93 | 59.26 | 70.87 | 76.42 | 85.13 | 92.61 | 92.94 | 85.97 | 67.97 | 60.53 | 44.81 | 68.07 | ||||||||||||
1950 | 46.77 | 54.29 | 59.67 | a | 72.77 | 78.97 | 90.47 | 92.97 | 91.94 | 81.33 | 79.29 | 60.00 | 51.26 | 71.64 | ||||||||||||
1951 | 43.97 | a | 49.39 | 58.45 | 67.63 | 79.87 | 89.03 | 97.87 | 91.26 | 86.43 | 55.65 | 49.07 | 35.32 | 67.00 | ||||||||||||
1952 | 40.16 | 47.86 | 53.71 | c | 69.93 | 77.74 | 90.33 | 93.71 | 93.32 | 87.93 | 75.94 | 49.13 | 39.77 | 68.30 | ||||||||||||
1953 | 45.35 | ----- | z | 66.69 | r | 67.14 | b | 77.00 | 91.96 | f | ----- | z | 91.07 | d | 87.47 | 71.71 | 56.83 | 39.62 | b | 67.03 | d | |||||
1954 | 46.50 | a | 58.81 | a | 56.00 | a | 75.00 | e | 80.03 | a | 90.39 | g | 94.58 | 90.19 | 83.80 | 73.29 | 60.93 | 42.58 | 69.25 | a | ||||||
1955 | 40.32 | 41.18 | 57.84 | 66.13 | 76.06 | 87.54 | b | 94.80 | a | 92.35 | 88.00 | 76.87 | a | 55.59 | a | 47.86 | b | 68.71 | ||||||||
1956 | 50.90 | a | 44.24 | 60.29 | 67.26 | c | 80.75 | c | 92.96 | b | 94.43 | a | 90.50 | a | 89.40 | 74.90 | b | 49.83 | a | 44.50 | a | 70.00 | ||||
1957 | 44.10 | 54.73 | b | 57.61 | 60.70 | j | 70.03 | 89.40 | o | 89.87 | 88.84 | 83.68 | b | 68.60 | a | 49.79 | f | 47.93 | b | 67.27 | c | |||||
1958 | 44.38 | b | 54.21 | 50.17 | b | 64.00 | a | 81.16 | 92.13 | 93.93 | a | 92.03 | b | 81.83 | 75.14 | i | ----- | z | 51.39 | h | 72.65 | c | ||||
1959 | 45.55 | 50.61 | 58.68 | 69.38 | d | 79.39 | 93.07 | 95.55 | 88.71 | 84.60 | 68.97 | 54.87 | 46.65 | 69.67 | ||||||||||||
1960 | 37.43 | a | 44.18 | a | 61.26 | 70.45 | a | 78.00 | c | 92.14 | a | 96.57 | a | 94.00 | 87.73 | o | 67.23 | a | 57.19 | d | 36.39 | m | 69.84 | b | ||
1961 | 34.04 | e | 50.23 | b | 57.26 | 67.62 | d | 77.07 | d | 92.79 | a | 94.79 | c | 90.52 | 79.34 | a | 70.59 | b | 52.00 | e | 31.73 | a | 66.50 | |||
1962 | 32.35 | 47.96 | a | 55.00 | 73.21 | b | 77.93 | d | 90.41 | h | 94.67 | j | ----- | z | ----- | z | ----- | z | 56.79 | p | 48.33 | j | 57.29 | g | ||
1963 | 35.80 | k | 52.00 | f | 61.26 | l | 73.42 | d | ----- | z | ----- | z | 99.57 | x | 91.32 | 86.93 | 78.10 | 58.53 | 42.52 | 71.80 | f | |||||
1964 | 44.55 | 47.76 | 54.77 | 66.57 | 80.29 | 89.27 | 98.00 | 91.77 | 83.07 | 77.45 | 54.13 | 43.00 | 69.22 | |||||||||||||
1965 | 43.65 | 51.39 | 56.58 | 70.14 | a | 76.74 | 85.33 | 92.60 | a | 91.77 | 80.80 | 74.26 | 60.17 | 46.45 | 69.16 | |||||||||||
1966 | 43.39 | 46.04 | 64.23 | 71.73 | 82.71 | 89.60 | 96.84 | 93.29 | 85.72 | a | 73.52 | b | 62.07 | 45.10 | 71.19 | |||||||||||
1967 | 43.52 | 55.64 | 66.87 | 69.30 | 78.13 | 85.70 | 95.29 | 92.40 | a | 84.27 | 73.10 | a | 59.17 | 36.23 | 69.97 | |||||||||||
1968 | 33.06 | 52.14 | 59.03 | 65.67 | ----- | z | ----- | z | 93.72 | b | 87.97 | 83.83 | 72.71 | 54.63 | 40.68 | 64.34 | b | |||||||||
1969 | 46.87 | 49.39 | 50.17 | a | 64.57 | 73.58 | 77.07 | 87.65 | 91.00 | 83.30 | 62.81 | 53.70 | 44.06 | 65.35 | ||||||||||||
1970 | 45.55 | 52.36 | 50.90 | ----- | z | ----- | z | ----- | z | ----- | z | 91.58 | s | ----- | z | ----- | z | ----- | z | ----- | z | 49.60 | i | |||
1971 | 45.15 | d | 51.11 | 62.23 | 69.67 | 76.14 | b | 89.97 | a | 94.78 | d | 89.70 | a | 82.07 | 67.26 | 52.03 | 37.97 | a | 68.17 | |||||||
1972 | 46.55 | 55.31 | 68.42 | 71.03 | 81.27 | a | 87.93 | b | 95.52 | 91.35 | 81.60 | 67.58 | 49.17 | 38.00 | 69.48 | |||||||||||
1973 | 31.90 | 44.48 | c | 53.13 | 63.45 | a | 77.37 | a | 86.47 | ----- | z | ----- | z | 83.70 | 74.58 | 58.55 | a | 45.17 | a | 61.88 | b | |||||
1974 | 34.19 | 40.93 | 65.55 | 69.47 | 84.29 | 93.57 | 93.20 | a | 91.45 | 83.83 | 71.16 | 54.69 | a | 42.13 | a | 68.71 | ||||||||||
1975 | 39.03 | 47.54 | 57.31 | b | 65.24 | a | 71.34 | b | 86.50 | 91.68 | 91.42 | 82.17 | 75.19 | 54.90 | 41.61 | 66.99 | ||||||||||
1976 | 44.58 | 56.97 | 60.35 | 70.53 | 79.70 | a | 85.86 | b | 91.19 | 87.45 | 80.43 | 67.71 | 57.61 | b | 45.28 | b | 68.97 | |||||||||
1977 | 35.35 | 51.42 | b | 57.39 | 70.90 | a | ----- | z | 89.68 | b | ----- | z | 91.61 | c | 86.04 | d | 74.60 | a | 57.64 | b | ----- | z | 68.29 | c | ||
1978 | 46.84 | 49.11 | 63.33 | a | 71.21 | a | ----- | z | 91.87 | 96.26 | 95.29 | 84.54 | b | ----- | z | ----- | z | 39.32 | 70.86 | c | ||||||
1979 | 38.65 | 45.75 | 59.50 | a | 69.20 | ----- | z | ----- | z | 94.52 | b | 90.58 | 91.17 | a | 78.42 | 49.45 | a | 45.75 | g | 68.58 | c | |||||
1980 | 44.90 | 54.96 | a | 59.13 | 71.70 | ----- | z | 89.70 | 96.65 | 84.59 | b | ----- | z | 73.45 | 58.30 | 54.84 | 68.82 | b | ||||||||
1981 | 54.84 | 55.46 | 60.35 | 74.77 | 77.06 | 93.50 | 95.13 | 93.13 | a | 86.57 | 69.76 | b | 61.60 | 49.90 | 72.67 | |||||||||||
1982 | 47.00 | 46.61 | 61.67 | a | 70.83 | 76.90 | a | 87.67 | ----- | z | 89.17 | a | 83.03 | 70.48 | b | 53.46 | b | 47.87 | 66.79 | a | ||||||
1983 | 44.17 | b | 52.71 | 57.42 | 63.07 | a | 76.26 | 84.17 | g | 91.81 | d | 90.93 | d | 85.04 | e | 73.00 | b | 56.07 | 45.47 | a | 66.90 | a | ||||
1984 | 42.23 | 51.76 | 59.52 | 69.17 | a | 83.90 | a | 86.24 | a | 92.68 | 91.42 | 85.50 | 65.03 | 57.90 | 49.10 | 69.54 | ||||||||||
1985 | 43.45 | 51.57 | 59.97 | 60.79 | b | 79.81 | 92.23 | 94.81 | 94.13 | 80.97 | 71.68 | 56.67 | 46.30 | a | 69.36 | |||||||||||
1986 | 52.42 | 56.21 | 65.87 | a | 71.50 | 81.58 | 91.87 | 91.23 | 93.90 | 79.57 | 69.06 | 56.20 | 47.23 | 71.39 | ||||||||||||
1987 | 44.20 | a | 52.78 | a | 58.74 | 74.63 | 80.97 | 92.55 | a | 94.00 | 90.23 | a | 85.10 | 72.26 | 54.93 | 41.90 | 70.19 | |||||||||
1988 | 37.52 | 51.54 | a | 61.65 | 71.29 | f | 83.03 | 94.93 | a | 96.77 | a | 92.33 | a | 84.23 | 77.58 | 57.83 | a | 46.00 | a | 71.22 | a | |||||
1989 | 42.90 | 50.67 | g | 69.57 | a | 78.45 | a | 85.16 | 92.03 | 98.55 | 92.03 | 86.96 | c | 73.00 | a | 59.64 | b | 47.48 | 75.07 | a | ||||||
1990 | 43.47 | a | 51.74 | a | 64.03 | 72.17 | a | 80.19 | d | 96.20 | 95.52 | h | 91.86 | c | 86.90 | a | 72.58 | 56.20 | e | 39.78 | d | 68.65 | a | |||
1991 | 37.92 | g | 53.09 | e | 58.38 | e | 70.61 | b | 82.47 | l | 93.00 | y | 95.69 | e | 93.42 | 85.90 | a | 75.52 | b | 53.79 | b | 36.38 | b | 69.20 | c | |
1992 | ----- | z | 51.93 | a | 63.52 | j | 76.52 | e | 80.00 | d | 89.21 | a | 92.42 | e | 91.26 | d | 85.04 | c | 76.64 | q | 51.11 | l | 37.33 | a | 75.46 | d |
1993 | 46.74 | d | 53.90 | g | 62.46 | r | 74.43 | i | 84.42 | g | 91.40 | 96.32 | 91.32 | c | 85.27 | 74.00 | j | 53.30 | g | 46.04 | h | 82.21 | g | |||
1994 | 52.05 | j | 52.29 | g | 65.73 | e | 71.59 | a | 83.75 | c | 96.03 | 98.86 | j | 96.62 | b | 87.57 | p | 73.18 | i | 57.57 | i | 48.50 | g | 82.74 | g | |
1995 | 47.96 | d | 62.17 | d | 65.69 | e | 69.33 | c | 78.64 | f | 89.96 | g | 95.74 | h | 96.13 | h | 88.86 | i | 75.56 | m | 63.22 | l | 50.17 | m | 61.29 | h |
1996 | 48.41 | i | 62.50 | k | 65.29 | n | 72.53 | k | 85.88 | g | 94.00 | c | 98.67 | g | 95.42 | e | 83.50 | p | 73.32 | l | 54.90 | j | 48.28 | f | 94.71 | j |
1997 | 47.28 | m | 51.39 | j | 71.25 | s | 66.38 | f | 83.26 | h | 90.83 | f | 94.00 | b | 91.32 | f | 86.04 | d | 75.86 | i | 57.43 | g | 45.62 | e | 75.22 | i |
1998 | 48.63 | d | 50.59 | a | 60.14 | b | 67.41 | c | 82.85 | d | 92.19 | d | 98.85 | e | 95.07 | d | 90.46 | d | ----- | z | 60.11 | l | ----- | z | 76.24 | c |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.04 | b | 93.13 | h | 90.38 | b | 84.33 | i | ----- | z | ----- | z | ----- | z | 91.21 | j |
2000 | 49.47 | n | 57.62 | h | 58.68 | l | 78.29 | m | 89.35 | k | ----- | z | ----- | z | 94.90 | k | 88.05 | h | 72.29 | g | 49.21 | f | 47.32 | f | ----- | z |
2001 | 46.05 | l | 57.27 | q | ----- | z | 72.62 | v | 84.85 | d | 94.21 | b | 96.83 | h | 93.36 | c | 90.73 | h | 77.94 | o | 57.78 | u | 45.38 | r | 90.81 | i |
2002 | 49.17 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | 64.50 | w | 72.11 | l | 84.32 | l | 91.08 | e | ----- | z | 94.61 | c | 84.43 | b | 76.92 | f | 56.42 | f | 49.67 | g | 90.04 | i |
2004 | ----- | z | 50.29 | o | 70.60 | k | 71.57 | i | 86.00 | g | 93.40 | j | 93.82 | n | 91.21 | l | 83.50 | h | 69.88 | e | 53.79 | k | 46.06 | n | 69.88 | k |
2005 | ----- | z | 51.56 | a | 59.65 | e | 72.04 | c | 82.25 | g | 88.67 | f | 98.96 | f | 90.28 | f | 85.23 | 72.50 | i | 63.09 | g | 48.88 | n | 67.12 | h | |
2006 | 52.62 | r | 56.85 | h | 61.63 | l | 77.00 | j | 84.89 | c | 95.09 | g | 95.93 | c | 89.40 | f | 79.39 | g | 68.22 | d | 60.78 | l | 48.07 | q | 83.01 | i |
2007 | 43.47 | n | 53.26 | i | 66.05 | k | 72.67 | l | 81.00 | i | 94.31 | n | 98.39 | m | 94.59 | n | 84.00 | q | 75.71 | j | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.03 | 50.65 | 59.92 | 69.95 | 79.69 | 90.13 | 94.50 | 91.82 | 84.92 | 72.25 | 56.11 | 43.85 | 69.28 | |||||||||||||
S.D. | 5.24 | 4.44 | 4.61 | 3.75 | 3.82 | 3.33 | 2.10 | 2.21 | 2.46 | 4.15 | 4.00 | 4.75 | 1.55 | |||||||||||||
SKEW | -0.52 | -0.27 | -0.02 | -0.03 | 0.00 | -1.04 | -0.49 | -0.51 | -0.02 | -1.15 | -0.23 | -0.42 | -0.20 | |||||||||||||
MAX | 54.84 | 62.17 | 72.48 | 78.45 | 88.87 | 96.20 | 98.85 | 96.62 | 91.17 | 79.29 | 64.33 | 54.84 | 72.67 | |||||||||||||
MIN | 31.16 | 40.61 | 50.00 | 60.79 | 70.03 | 77.07 | 87.65 | 84.59 | 79.34 | 55.65 | 48.73 | 31.73 | 65.35 | |||||||||||||
YRS | 64 | 63 | 64 | 62 | 57 | 58 | 56 | 66 | 62 | 61 | 57 | 58 | 33 |