YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.40 | e | 61.72 | m | 46.93 | 33.10 | 52.14 | i | ||
1925 | 35.42 | 47.25 | 54.93 | a | 61.48 | a | 73.55 | 76.03 | 91.26 | 85.40 | a | 74.37 | 61.81 | 47.43 | 40.32 | 62.44 | ||||||||||
1926 | 36.65 | 45.54 | 54.35 | 65.23 | 71.84 | 84.93 | 90.16 | 87.13 | 75.23 | 67.00 | 54.33 | 37.32 | 64.14 | |||||||||||||
1927 | 37.83 | a | 43.21 | 50.68 | 59.53 | 66.65 | 82.53 | 91.10 | 85.61 | 76.93 | 67.03 | 54.91 | h | ----- | z | 66.11 | b | |||||||||
1928 | ----- | z | 42.38 | 53.65 | 58.57 | 76.31 | b | 77.86 | a | 90.39 | 86.87 | 81.52 | a | 64.52 | 47.72 | a | 32.65 | 64.77 | a | |||||||
1929 | 31.52 | 33.36 | 47.07 | a | 56.13 | 71.14 | b | 79.97 | 90.71 | 89.65 | 72.39 | b | 67.65 | 48.07 | 45.48 | 61.09 | ||||||||||
1930 | 29.84 | 46.36 | 51.84 | 68.87 | 68.97 | 81.60 | 90.71 | 84.45 | 76.30 | 59.03 | 44.07 | 26.10 | 60.68 | |||||||||||||
1931 | 28.42 | 38.11 | 50.58 | 63.50 | 72.39 | c | 87.72 | a | 96.03 | 92.19 | 79.76 | a | 66.26 | 45.41 | a | 32.97 | 62.78 | |||||||||
1932 | 28.40 | a | 36.93 | 45.77 | 61.68 | b | 72.55 | b | 79.87 | 89.42 | 88.74 | 82.90 | 65.23 | 53.90 | 29.32 | 61.23 | ||||||||||
1933 | 34.73 | a | 32.35 | b | 47.74 | 60.00 | b | 65.39 | 89.73 | 95.42 | 90.19 | 82.23 | 74.03 | 52.80 | 46.87 | 64.29 | ||||||||||
1934 | 41.74 | 50.79 | 62.16 | 72.43 | 83.19 | 84.13 | 94.87 | 92.16 | 78.47 | 69.55 | 52.13 | 38.45 | 68.34 | |||||||||||||
1935 | 40.39 | 44.39 | 51.19 | 62.50 | 67.23 | 85.03 | 93.42 | 90.58 | 83.17 | 65.29 | 46.32 | b | 40.13 | a | 64.14 | |||||||||||
1936 | 36.87 | 40.07 | 51.80 | a | 65.50 | 77.90 | 83.97 | 91.81 | 89.26 | 78.97 | 66.71 | 48.07 | 41.42 | 64.36 | ||||||||||||
1937 | 24.16 | 40.46 | 48.26 | 57.73 | 73.61 | 77.90 | a | 90.42 | 92.19 | 83.37 | 68.68 | 53.77 | 44.90 | 62.95 | ||||||||||||
1938 | 45.16 | 45.82 | 50.87 | 63.53 | 69.13 | 84.47 | 87.97 | 89.03 | 84.30 | 67.52 | ----- | z | 42.19 | 66.36 | a | |||||||||||
1939 | 38.81 | 34.36 | 52.23 | 67.10 | 76.26 | 79.67 | 92.61 | 91.16 | 78.17 | 68.26 | 56.80 | 46.90 | 65.19 | |||||||||||||
1940 | 37.52 | 46.41 | 56.87 | 63.17 | 79.45 | 88.43 | 92.94 | 92.39 | 77.97 | 71.00 | 45.70 | 43.74 | 66.30 | |||||||||||||
1941 | 37.16 | 46.96 | 55.68 | 57.50 | 74.65 | 78.43 | 89.13 | 84.94 | 74.50 | 64.55 | 51.43 | 41.87 | 63.07 | |||||||||||||
1942 | 30.61 | 34.89 | 45.39 | 64.77 | 67.03 | 80.80 | 95.39 | 92.35 | 81.77 | 66.71 | 52.90 | 41.35 | 62.83 | |||||||||||||
1943 | 42.45 | 43.96 | 52.71 | 70.80 | 71.42 | 79.33 | 91.16 | 90.35 | 84.73 | 70.17 | a | 53.93 | 42.52 | b | 66.13 | |||||||||||
1944 | 33.74 | 41.54 | a | 49.52 | 59.40 | ----- | z | 74.69 | a | 88.84 | 87.55 | ----- | z | 71.06 | 48.57 | b | ----- | z | 61.66 | c | ||||||
1945 | ----- | z | ----- | z | 49.03 | 57.66 | a | 70.35 | 68.37 | 89.60 | a | 82.23 | 71.76 | a | 67.77 | a | 40.96 | b | 44.67 | v | 66.41 | c | ||||
1946 | 35.87 | 42.79 | 53.94 | 67.30 | 69.13 | 81.52 | a | 91.72 | b | 90.37 | d | 76.50 | b | 57.10 | 46.83 | 44.40 | a | 63.12 | ||||||||
1947 | 31.97 | 45.64 | 53.90 | 59.80 | 77.03 | 76.77 | 92.58 | 87.26 | 80.47 | 68.61 | 43.67 | 37.94 | 62.97 | |||||||||||||
1948 | 38.48 | 42.10 | 46.52 | 62.27 | 72.65 | 81.30 | 91.42 | 90.94 | 82.17 | 66.97 | 44.57 | 35.65 | 62.92 | |||||||||||||
1949 | 24.84 | 34.38 | b | 51.55 | 66.80 | 73.00 | a | 80.47 | 90.97 | 91.13 | 82.40 | 60.39 | 57.30 | 38.87 | 62.67 | |||||||||||
1950 | 35.06 | 47.30 | a | 51.61 | 61.83 | 66.94 | 82.37 | 88.06 | 90.10 | 76.40 | 72.65 | 51.60 | 39.97 | 63.66 | ||||||||||||
1951 | 35.55 | 44.79 | 48.68 | 63.90 | 71.28 | b | 78.20 | 92.03 | 88.00 | 80.43 | 62.29 | 47.37 | 35.74 | 62.35 | ||||||||||||
1952 | 35.61 | 37.59 | 41.84 | 64.87 | 74.68 | 82.93 | 88.55 | 89.48 | 83.60 | 74.61 | 46.70 | 39.61 | 63.34 | |||||||||||||
1953 | 47.97 | 46.57 | 56.63 | a | 58.67 | 66.32 | 81.97 | 92.71 | 89.87 | 84.00 | 68.13 | 56.63 | 39.23 | 65.72 | ||||||||||||
1954 | 42.32 | 44.50 | 50.35 | 67.17 | 76.77 | 79.97 | 94.16 | 88.35 | 80.73 | 70.13 | 59.87 | ----- | z | 68.58 | a | |||||||||||
1955 | 30.87 | 33.96 | 44.53 | a | 55.55 | a | 71.68 | c | 77.73 | 90.17 | a | 90.26 | 80.23 | 67.45 | 46.27 | 42.90 | 60.97 | |||||||||
1956 | 43.65 | 34.39 | a | 52.21 | b | 62.04 | b | 72.03 | a | 83.70 | 90.40 | a | 86.90 | b | 83.25 | b | 65.07 | c | 46.68 | b | 40.17 | a | 63.37 | |||
1957 | 34.37 | a | 49.93 | 53.83 | a | 57.97 | 68.30 | a | 78.90 | 90.63 | a | 90.23 | 79.75 | b | 65.35 | 43.83 | 43.03 | 63.01 | ||||||||
1958 | 38.81 | 50.86 | 49.27 | a | 58.93 | 80.52 | 85.83 | 90.66 | b | 92.42 | 82.27 | 71.74 | 50.20 | 46.42 | 66.49 | |||||||||||
1959 | 43.10 | 44.04 | 53.97 | a | 65.03 | a | 69.48 | b | 87.97 | 93.77 | 89.32 | 76.03 | 67.57 | a | 54.14 | a | 41.52 | 65.49 | ||||||||
1960 | 33.71 | 37.17 | 54.26 | 65.03 | 74.97 | 87.70 | 96.67 | a | 90.63 | a | 83.60 | 68.13 | 52.97 | 42.59 | b | 65.62 | ||||||||||
1961 | 43.68 | 46.71 | 52.23 | 61.67 | 74.87 | 89.93 | 95.58 | 93.39 | 74.70 | 65.13 | 46.03 | 38.26 | 65.18 | |||||||||||||
1962 | 32.87 | 39.68 | 47.90 | a | 67.13 | 70.97 | 82.33 | 90.65 | 91.39 | 85.47 | 72.00 | 56.03 | 42.32 | 64.89 | ||||||||||||
1963 | 35.52 | 52.32 | 53.77 | 56.97 | 76.06 | 77.33 | 93.48 | 91.65 | 82.07 | 71.90 | 49.83 | 33.40 | a | 64.53 | ||||||||||||
1964 | 32.71 | 35.41 | 42.77 | 58.10 | 69.68 | 75.73 | 94.19 | 87.84 | 80.27 | 71.13 | a | 48.33 | 41.84 | 61.50 | ||||||||||||
1965 | 39.35 | 45.00 | a | 49.65 | 61.00 | d | 67.93 | a | 79.66 | a | 88.74 | 84.84 | 69.17 | 71.16 | 55.67 | 39.00 | 62.60 | |||||||||
1966 | 38.65 | 40.07 | 54.26 | 63.60 | 77.32 | 83.90 | 94.13 | 89.52 | 82.30 | 65.19 | 54.40 | 35.61 | 64.91 | |||||||||||||
1967 | 38.90 | 47.07 | 57.13 | 58.00 | 70.32 | 76.50 | 92.94 | 94.00 | 81.37 | 68.81 | 55.83 | 34.32 | 64.60 | |||||||||||||
1968 | 35.71 | 46.90 | 57.32 | 58.00 | 71.39 | 82.27 | 93.55 | 82.94 | 77.37 | 65.58 | 48.20 | 38.32 | 63.13 | |||||||||||||
1969 | 39.73 | a | 37.63 | a | 46.65 | 65.53 | 79.00 | 77.17 | 91.55 | 92.42 | 82.76 | a | 57.94 | 50.47 | 39.32 | 63.35 | ||||||||||
1970 | 39.87 | a | 48.75 | 48.71 | 53.00 | 70.29 | 80.70 | 89.39 | 91.55 | 72.53 | 59.00 | 48.87 | 39.38 | g | 63.88 | a | ||||||||||
1971 | 37.19 | d | 43.63 | i | 47.90 | b | 59.27 | d | 67.83 | b | 79.70 | 90.90 | 90.03 | 72.53 | 57.35 | 46.13 | 32.84 | 61.97 | a | |||||||
1972 | 37.23 | 43.52 | 57.06 | 58.37 | 72.13 | 82.37 | 90.00 | 88.74 | 74.14 | a | 63.07 | b | 43.60 | 30.77 | 61.75 | |||||||||||
1973 | 29.48 | 39.00 | 46.65 | 58.41 | h | 74.61 | ----- | z | 90.48 | 89.87 | 76.08 | e | 67.61 | 47.93 | 40.90 | a | 60.26 | b | ||||||||
1974 | 35.65 | 38.86 | 54.84 | 59.73 | 73.74 | 87.60 | 93.03 | b | 89.06 | 82.40 | 67.17 | a | 50.47 | 37.45 | 64.17 | |||||||||||
1975 | 34.03 | 41.36 | 48.90 | 53.33 | 65.48 | 78.33 | 93.39 | 87.42 | 80.79 | b | 63.35 | 47.23 | d | 38.19 | 60.98 | |||||||||||
1976 | 35.81 | 40.48 | 47.74 | 62.76 | a | 77.84 | 82.89 | b | 93.58 | e | 87.39 | 81.20 | 65.71 | 55.87 | 41.71 | 64.41 | ||||||||||
1977 | 33.26 | 45.92 | c | 47.26 | 68.17 | 67.35 | 88.97 | a | 92.00 | 88.87 | 80.90 | 69.55 | 53.40 | 45.35 | 65.08 | |||||||||||
1978 | 42.80 | a | 47.33 | a | 58.90 | 62.03 | 70.26 | 83.70 | 93.77 | 87.42 | 76.33 | 70.81 | 46.53 | 36.65 | 64.71 | |||||||||||
1979 | 29.65 | 40.00 | 51.39 | 62.60 | 74.16 | 86.17 | 92.35 | 88.16 | 85.30 | 69.35 | 43.87 | 40.87 | a | 63.66 | ||||||||||||
1980 | 37.71 | 45.34 | 50.24 | b | 64.87 | 68.23 | 81.80 | 92.65 | 88.84 | 80.33 | 66.94 | 51.72 | a | 40.61 | 64.11 | |||||||||||
1981 | 33.77 | 48.38 | b | 52.77 | 66.20 | 69.39 | 83.87 | 93.68 | 92.42 | 82.37 | 60.74 | 53.77 | 44.35 | 65.14 | ||||||||||||
1982 | 35.14 | c | 40.11 | a | 50.31 | b | 58.96 | b | 70.25 | c | 81.68 | b | 87.30 | d | 91.43 | a | 74.41 | c | 59.00 | d | 47.31 | a | 38.14 | b | 61.17 | |
1983 | 43.73 | e | 46.96 | d | 53.20 | f | 55.58 | d | 67.00 | 79.35 | d | 90.57 | a | 87.78 | d | 79.56 | c | 66.90 | a | 49.72 | e | 34.14 | b | 63.75 | a | |
1984 | 27.87 | a | 31.48 | 45.90 | a | 58.22 | c | 74.11 | c | 76.15 | d | 89.52 | b | 88.17 | b | 77.62 | a | 57.36 | f | 49.61 | b | 33.14 | b | 59.25 | a | |
1985 | 29.18 | c | 33.19 | b | 46.74 | 68.82 | b | 75.23 | 86.10 | 93.23 | a | 90.94 | 74.47 | 64.90 | a | 43.10 | 31.19 | 61.42 | ||||||||
1986 | 35.19 | 47.93 | a | 59.52 | 60.66 | a | 71.06 | 90.03 | 89.48 | 92.74 | 71.00 | b | 65.00 | c | 50.97 | a | 39.00 | 64.38 | ||||||||
1987 | 35.13 | 46.13 | e | 54.54 | e | 73.04 | d | 74.15 | e | 84.92 | d | 87.85 | d | 88.76 | b | 82.89 | c | 70.13 | a | 50.54 | b | 40.43 | a | 65.71 | ||
1988 | 35.45 | b | 43.50 | c | 52.81 | d | 67.21 | a | 73.92 | f | 89.96 | b | 96.31 | e | 91.90 | 81.53 | 76.24 | b | 49.70 | c | 36.37 | a | 65.54 | a | ||
1989 | 31.21 | c | 34.86 | 56.97 | a | 68.68 | e | 74.82 | c | 83.32 | b | 96.21 | c | 90.52 | b | 82.61 | b | 68.00 | b | 52.69 | a | 41.30 | d | 65.10 | ||
1990 | 42.80 | a | 44.81 | a | 59.30 | a | 68.28 | a | 74.04 | e | ----- | z | 95.15 | e | 90.70 | a | 84.78 | c | 67.57 | h | 50.92 | d | 31.82 | c | 64.26 | b |
1991 | 33.10 | a | 46.04 | e | 53.40 | f | 58.61 | g | 66.08 | g | 80.91 | h | 93.48 | d | 92.00 | g | 77.52 | g | 66.12 | g | 46.96 | e | 35.89 | c | 51.10 | g |
1992 | 34.81 | e | 48.30 | f | 60.08 | e | 71.70 | g | 80.40 | f | 84.60 | j | 88.46 | g | 93.67 | g | 81.71 | f | 70.10 | j | 42.16 | e | 36.43 | h | 45.68 | i |
1993 | 31.59 | d | 35.74 | e | 50.04 | d | 59.65 | g | 75.52 | f | 76.42 | k | 82.46 | g | 87.13 | h | 78.96 | f | 64.73 | i | 46.20 | e | 39.79 | b | 40.67 | g |
1994 | 44.30 | d | 44.32 | f | 58.04 | f | 64.57 | i | 78.52 | f | 87.93 | c | 96.75 | c | 96.18 | i | 86.33 | l | 61.12 | g | 40.20 | e | 39.54 | g | 67.29 | h |
1995 | 38.72 | f | 52.91 | f | 52.58 | g | 62.11 | l | 68.08 | f | 77.72 | e | 91.31 | e | 93.88 | g | 83.83 | g | 67.24 | j | 57.04 | g | 42.42 | g | 84.51 | j |
1996 | 40.27 | e | ----- | z | 56.82 | c | 63.48 | a | 72.57 | h | 87.92 | f | 94.96 | d | 94.19 | d | 80.00 | h | 66.23 | e | 52.72 | a | 42.40 | a | 63.88 | d |
1997 | 37.48 | h | 42.24 | g | 58.30 | k | 58.09 | g | 77.26 | d | 83.39 | g | 90.59 | i | 90.62 | b | 81.30 | g | 64.30 | h | 51.27 | h | 34.64 | f | 83.94 | j |
1998 | ----- | z | 44.50 | f | 52.08 | g | 60.40 | e | 71.30 | h | 76.43 | i | 93.50 | e | 92.04 | e | 81.93 | c | 63.84 | f | 51.67 | c | 37.23 | e | 69.46 | f |
1999 | 42.46 | e | 46.85 | h | 59.32 | l | 57.54 | d | 70.83 | h | 83.92 | d | 93.85 | d | ----- | z | 80.88 | f | 72.66 | b | 60.04 | b | 42.10 | b | 64.65 | e |
2000 | 44.18 | c | 50.00 | b | 54.77 | e | 69.87 | g | 77.04 | e | 89.31 | d | 97.07 | c | 95.22 | d | 79.90 | i | 65.26 | h | 42.96 | d | 41.12 | e | 65.74 | c |
2001 | 37.80 | a | 45.23 | b | 59.27 | e | 65.28 | e | 79.71 | g | 87.45 | h | 95.54 | g | 96.33 | d | 88.95 | j | 68.29 | j | 53.78 | g | 33.56 | d | 56.24 | f |
2002 | ----- | z | 36.15 | b | 53.64 | f | 62.54 | f | 76.38 | g | 89.14 | h | 97.64 | f | 90.80 | f | 79.42 | k | 62.58 | g | 48.40 | e | 42.12 | g | 42.28 | j |
2003 | 49.04 | g | 43.67 | g | 54.82 | i | 64.10 | j | ----- | z | 86.45 | h | 97.58 | e | 92.45 | k | 80.21 | k | 72.38 | j | 41.25 | f | 40.24 | f | 97.58 | k |
2004 | 28.50 | g | 35.41 | g | 57.83 | b | 64.52 | i | 73.57 | h | 85.69 | d | 93.23 | e | 88.32 | f | 78.32 | h | 67.30 | k | 47.57 | i | 39.42 | g | 78.92 | i |
2005 | 40.29 | j | 42.04 | b | 52.09 | i | 60.00 | j | 70.95 | i | 78.85 | j | ----- | z | ----- | z | 79.04 | f | 66.05 | k | 46.55 | j | 38.38 | j | 42.04 | k |
2006 | 39.84 | f | 42.00 | b | 51.68 | i | 64.00 | i | 75.81 | j | 86.65 | j | 98.68 | i | 92.88 | g | 78.46 | f | 61.00 | l | 49.20 | j | 36.04 | g | 42.00 | k |
2007 | 28.57 | j | 42.37 | i | 57.38 | j | ----- | z | 78.74 | h | 92.94 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | 52.73 | p | 61.00 | c | 71.61 | c | ----- | z | ----- | z | ----- | z | 80.67 | 66.00 | 53.00 | m | 38.28 | b | 63.51 | g | ||
2009 | 38.10 | b | 43.86 | 52.47 | l | ----- | z | 76.45 | 80.71 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.80 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.29 | 42.37 | 51.89 | 62.31 | 72.44 | 82.17 | 92.20 | 89.70 | 79.39 | 66.87 | 49.59 | 38.91 | 63.74 | |||||||||||||
S.D. | 4.98 | 5.16 | 4.40 | 4.42 | 3.93 | 4.38 | 2.45 | 2.70 | 3.93 | 4.16 | 4.44 | 4.41 | 1.66 | |||||||||||||
SKEW | -0.06 | -0.34 | 0.07 | 0.23 | 0.28 | -0.18 | 0.17 | -0.36 | -0.61 | -0.40 | 0.19 | -0.49 | 0.13 | |||||||||||||
MAX | 47.97 | 52.32 | 62.16 | 73.04 | 83.19 | 90.03 | 97.58 | 96.33 | 85.47 | 76.24 | 60.04 | 46.90 | 68.34 | |||||||||||||
MIN | 24.16 | 31.48 | 41.84 | 53.00 | 65.39 | 68.37 | 87.30 | 82.23 | 69.17 | 57.10 | 40.20 | 26.10 | 60.68 | |||||||||||||
YRS | 73 | 72 | 71 | 70 | 68 | 69 | 75 | 71 | 68 | 67 | 74 | 70 | 53 |