YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | ----- | z | ----- | z | ----- | z | 55.43 | 68.61 | 80.43 | 82.90 | 82.13 | 74.27 | 62.68 | 53.50 | 36.00 | a | 66.22 | c | ||||||||
1925 | 33.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.65 | 46.77 | 39.27 | a | 45.15 | h | |||
1926 | 30.77 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.26 | 81.77 | ----- | z | ----- | z | ----- | z | ----- | z | 63.93 | i | ||
1927 | 42.35 | 43.04 | ----- | z | ----- | z | ----- | z | ----- | z | 81.54 | c | 75.71 | 70.10 | 63.77 | 51.80 | 34.84 | 57.89 | d | |||||||
1928 | 41.74 | d | 40.62 | 51.23 | 56.40 | 68.32 | 75.04 | f | ----- | z | 80.67 | m | ----- | z | 62.45 | b | 43.50 | 36.55 | 50.10 | d | ||||||
1929 | 34.97 | a | 35.15 | b | 44.20 | a | 51.57 | b | 63.74 | d | 73.69 | d | 79.18 | c | 72.29 | 66.35 | d | 59.42 | g | 40.10 | i | 42.43 | c | 56.36 | b | |
1930 | 35.55 | 47.71 | n | ----- | z | ----- | z | ----- | z | ----- | z | 84.41 | b | 79.47 | a | 71.36 | h | ----- | z | ----- | z | ----- | z | 66.48 | i | |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.48 | 83.52 | 74.90 | a | 62.81 | 43.41 | c | 36.29 | 64.73 | f | ||||
1932 | 30.68 | 43.66 | 46.23 | 57.90 | 68.29 | 77.23 | 84.03 | 82.00 | 76.23 | 62.52 | 53.07 | 34.65 | 59.71 | |||||||||||||
1933 | 36.68 | 34.54 | 49.06 | 54.33 | 63.26 | 83.03 | 86.13 | 82.81 | 76.45 | a | 65.61 | 52.59 | a | 46.23 | 60.89 | |||||||||||
1934 | 41.74 | h | 44.29 | u | 64.17 | s | 71.80 | y | 76.75 | k | 82.35 | g | 88.39 | 85.39 | 75.67 | 61.35 | 53.53 | 42.07 | a | 67.73 | f | |||||
1935 | 40.55 | 50.29 | 48.77 | 57.53 | 62.48 | 83.10 | 84.23 | 81.06 | 75.17 | 63.32 | 50.53 | 42.13 | 61.60 | |||||||||||||
1936 | 38.55 | b | 40.11 | a | 52.10 | a | 63.53 | 73.45 | 83.63 | 85.23 | 82.29 | 74.37 | 64.23 | a | 50.73 | 41.55 | 62.48 | |||||||||
1937 | 29.57 | a | 42.00 | a | 47.48 | 60.83 | 73.35 | 77.93 | 84.30 | a | 83.68 | 76.33 | 65.23 | a | ----- | z | ----- | z | 64.07 | b | ||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.38 | f | 41.58 | 41.58 | k | |
1939 | 37.90 | 35.58 | b | 49.59 | b | 62.71 | b | 70.68 | 78.79 | b | 85.26 | ----- | z | 77.47 | 68.29 | 58.30 | 44.81 | 60.85 | a | |||||||
1940 | 38.26 | 41.52 | 56.10 | 57.55 | a | 71.29 | 81.83 | 85.52 | 83.39 | 70.83 | 65.74 | ----- | z | ----- | z | 65.20 | b | |||||||||
1941 | 39.68 | 42.39 | 43.83 | a | 52.97 | 68.97 | b | 73.20 | 83.53 | a | 80.19 | ----- | z | ----- | z | ----- | z | ----- | z | 60.60 | d | |||||
1942 | 45.10 | 44.43 | 53.10 | 70.08 | d | 78.19 | 90.31 | a | 90.00 | 83.11 | c | 76.07 | 64.52 | 53.90 | 43.61 | 66.03 | ||||||||||
1943 | 41.23 | a | 48.30 | a | 49.81 | d | 67.17 | 69.23 | 74.93 | 83.39 | 77.10 | 74.53 | 62.03 | 50.17 | 37.03 | 61.24 | ||||||||||
1944 | 34.42 | 37.45 | 42.43 | a | 50.30 | 63.87 | 72.93 | 79.94 | 79.19 | 74.43 | 63.19 | 44.90 | 36.84 | 56.66 | ||||||||||||
1945 | ----- | z | 38.71 | 43.45 | 50.07 | 66.71 | 72.70 | 82.29 | 79.42 | 71.83 | 61.65 | 48.63 | 34.45 | 59.08 | a | |||||||||||
1946 | 36.42 | 41.46 | 49.81 | 61.80 | 62.68 | 78.83 | 83.42 | 79.68 | 74.37 | 56.71 | 45.20 | 44.90 | 59.61 | |||||||||||||
1947 | 35.93 | a | 45.82 | 48.74 | 56.87 | 68.90 | 72.23 | 84.87 | 77.58 | 75.10 | 63.61 | 41.10 | 37.70 | a | 59.04 | |||||||||||
1948 | 36.55 | 38.41 | 40.87 | 57.50 | 68.77 | 74.47 | 83.32 | 80.61 | 76.41 | a | 63.13 | 43.50 | f | 39.55 | 59.96 | a | ||||||||||
1949 | 30.90 | 36.68 | 47.71 | 59.93 | 65.19 | 72.83 | 81.58 | 81.39 | 76.63 | 58.96 | d | 57.17 | 38.45 | 58.95 | ||||||||||||
1950 | 35.61 | 44.64 | 47.58 | 59.57 | 65.32 | 77.93 | 77.00 | h | 80.29 | 69.80 | 69.65 | 51.62 | a | 42.97 | 58.63 | a | ||||||||||
1951 | 36.90 | 41.07 | 48.21 | c | 56.67 | 67.71 | 75.67 | 85.81 | 79.26 | 75.82 | h | 60.20 | a | 40.37 | 33.00 | 56.81 | a | |||||||||
1952 | 33.61 | 35.72 | 38.77 | 57.57 | 68.52 | 79.00 | 81.71 | 79.42 | 74.10 | 66.25 | g | 41.83 | 33.52 | 56.71 | a | |||||||||||
1953 | 41.19 | 38.25 | 48.77 | 54.93 | 62.10 | 81.03 | 83.97 | 78.71 | 75.60 | 62.06 | 48.40 | 33.67 | a | 59.06 | ||||||||||||
1954 | 40.87 | 49.32 | 45.74 | 64.43 | 71.23 | 78.93 | 83.97 | 80.97 | 71.10 | 62.39 | 50.17 | 37.52 | 61.39 | |||||||||||||
1955 | 33.52 | 31.43 | 44.52 | 55.23 | 66.61 | 75.23 | 84.57 | a | 80.85 | k | 76.13 | 64.77 | 44.90 | 40.06 | 56.09 | a | ||||||||||
1956 | 42.19 | 35.66 | 49.35 | 57.00 | 71.58 | 82.69 | a | 83.03 | 78.55 | 78.47 | 63.77 | 41.00 | 34.55 | 59.82 | ||||||||||||
1957 | 35.03 | 44.57 | 47.33 | a | 53.87 | 60.00 | 77.43 | 79.70 | a | 77.39 | 72.03 | 56.97 | 39.63 | 40.48 | 57.04 | |||||||||||
1958 | 36.19 | 42.71 | 42.00 | 55.63 | 72.65 | 81.87 | 83.77 | 83.94 | 72.73 | 62.58 | 46.70 | 44.35 | 60.43 | |||||||||||||
1959 | 37.83 | a | 38.86 | 47.58 | 59.24 | a | 69.10 | 82.63 | 85.74 | 79.55 | 71.20 | 59.00 | 46.97 | 39.45 | 59.76 | |||||||||||
1960 | 31.35 | 33.03 | 48.39 | 59.07 | 68.42 | 80.23 | 85.06 | 82.84 | 74.69 | a | 58.74 | 48.90 | 34.13 | 58.74 | ||||||||||||
1961 | 36.10 | 40.77 | b | 45.48 | 56.87 | 69.90 | 82.20 | 83.58 | 79.58 | 65.86 | b | 59.29 | 43.30 | 31.55 | 57.87 | |||||||||||
1962 | 32.71 | 40.50 | 42.74 | 62.60 | 67.42 | 78.77 | 82.10 | a | 82.06 | 74.17 | 62.94 | 50.43 | 39.65 | 59.67 | ||||||||||||
1963 | 29.45 | 43.29 | 46.68 | 58.13 | 73.19 | 78.41 | a | 84.39 | 77.97 | 76.00 | 65.42 | 47.27 | d | 35.61 | 59.65 | |||||||||||
1964 | 32.84 | 34.52 | 40.77 | 53.63 | 68.48 | 75.48 | e | 85.71 | 77.35 | 71.07 | 65.68 | 41.93 | 35.74 | 56.93 | ||||||||||||
1965 | 37.10 | 37.04 | 41.84 | 56.70 | 63.74 | 73.86 | a | 80.81 | 78.81 | 66.23 | 63.26 | 49.30 | 38.61 | 57.27 | ||||||||||||
1966 | 33.67 | a | 35.11 | 52.13 | 59.83 | a | 71.40 | a | 76.97 | 84.42 | 82.13 | 74.97 | 61.84 | 52.23 | 38.81 | 60.29 | ||||||||||
1967 | 39.32 | 44.04 | 53.39 | 56.93 | 66.23 | 73.20 | 82.79 | c | 80.52 | 73.83 | 66.03 | 52.20 | 33.97 | 60.20 | ||||||||||||
1968 | 38.19 | 44.31 | 50.84 | 51.57 | 64.55 | 78.97 | 80.90 | 74.29 | 72.30 | c | 63.52 | 44.73 | 36.87 | a | 58.42 | |||||||||||
1969 | 41.13 | 39.36 | 44.26 | 61.03 | 71.84 | 73.50 | 83.23 | 84.10 | 73.20 | 52.58 | 47.07 | 41.13 | 59.37 | |||||||||||||
1970 | 34.57 | j | 47.29 | 43.23 | 49.77 | 69.45 | 75.30 | 83.74 | 81.97 | 68.50 | 53.57 | a | 47.33 | c | 39.23 | 59.94 | a | |||||||||
1971 | 38.45 | 39.71 | 49.19 | 57.10 | 63.61 | 78.60 | 84.48 | 81.97 | 70.30 | 59.19 | 45.70 | 33.75 | c | 58.51 | ||||||||||||
1972 | 38.48 | 45.72 | 56.00 | 59.47 | 69.58 | 77.50 | 84.70 | a | 79.97 | 72.20 | 56.67 | a | 40.80 | 34.65 | 59.64 | |||||||||||
1973 | 34.17 | a | 40.61 | 43.52 | 53.32 | b | 66.19 | 75.57 | 81.39 | 80.33 | a | 72.74 | c | 64.13 | 51.00 | 39.27 | a | 58.52 | ||||||||
1974 | 34.10 | 38.71 | 52.97 | 56.63 | 72.24 | b | 81.87 | 81.52 | 81.21 | c | 74.96 | b | 61.77 | 47.13 | 36.16 | 59.94 | ||||||||||
1975 | 35.29 | 39.36 | 44.59 | b | 51.87 | 63.93 | a | 75.55 | a | 82.13 | a | 80.97 | 72.40 | 63.71 | 46.83 | 41.10 | 58.14 | |||||||||
1976 | 37.52 | 46.24 | 48.00 | 58.03 | 67.77 | 79.35 | d | 86.00 | 79.39 | 72.66 | a | 60.29 | 50.83 | 42.71 | 60.73 | |||||||||||
1977 | 36.23 | 45.43 | 46.06 | 62.97 | a | 67.43 | a | 83.38 | a | 83.03 | 81.84 | 74.97 | 64.50 | a | 49.00 | b | 43.13 | 61.50 | ||||||||
1978 | 38.55 | 40.46 | 51.48 | 58.13 | 64.07 | b | 79.97 | 86.21 | c | 83.36 | c | 75.54 | d | 65.42 | e | 48.89 | b | 33.20 | a | 60.44 | ||||||
1979 | 30.29 | 40.46 | b | 46.64 | c | 56.79 | f | 66.00 | f | 77.37 | 85.60 | f | 80.97 | b | 80.32 | b | 67.27 | a | 41.66 | a | 41.03 | 56.22 | c | |||
1980 | 37.61 | 44.45 | 44.90 | 57.27 | d | 63.36 | c | 81.57 | 86.86 | b | 82.28 | b | 74.41 | h | 61.87 | a | 48.50 | f | 52.00 | q | 62.24 | c | ||||
1981 | 44.97 | a | 45.56 | a | 47.06 | 64.73 | 66.57 | a | 83.38 | f | 84.55 | i | 81.53 | a | 73.48 | c | 57.62 | b | 54.97 | 43.71 | 58.02 | b | ||||
1982 | 37.77 | 40.86 | 48.30 | a | 56.97 | 65.93 | a | 77.63 | 83.90 | b | 80.35 | 70.37 | c | 58.92 | e | 45.83 | 39.10 | 58.83 | ||||||||
1983 | 41.87 | 44.54 | b | 47.23 | 51.07 | 63.90 | 74.53 | 81.77 | 80.90 | a | 75.66 | a | 63.77 | 47.20 | 37.93 | a | 59.20 | |||||||||
1984 | 37.42 | 42.10 | 46.93 | a | 54.47 | 70.41 | i | ----- | z | 83.68 | 81.06 | 73.70 | 52.58 | 50.13 | 40.00 | c | 56.21 | b | ||||||||
1985 | 37.65 | 38.43 | 47.90 | a | 60.69 | a | 67.55 | 80.33 | 82.84 | 83.16 | 68.77 | 61.10 | a | 44.17 | 39.81 | 59.37 | ||||||||||
1986 | 46.26 | 44.93 | 55.23 | 58.59 | c | 66.94 | 78.77 | 80.30 | a | 81.87 | 66.68 | b | 57.23 | 50.33 | 39.55 | 60.56 | ||||||||||
1987 | 37.16 | 40.89 | 47.80 | a | 62.64 | e | 65.55 | b | 79.53 | 80.79 | c | 78.57 | c | 73.62 | a | 64.55 | 46.37 | 35.90 | 59.45 | |||||||
1988 | 33.97 | 42.28 | 49.55 | b | 62.67 | r | 67.28 | b | 80.33 | 84.70 | a | 82.26 | 71.00 | a | 67.60 | k | 45.48 | c | 38.74 | 59.56 | b | |||||
1989 | 34.39 | 39.86 | 56.35 | 63.90 | a | 71.32 | 79.52 | a | 86.03 | b | 79.07 | a | 75.62 | a | 62.76 | b | 51.83 | 40.35 | 61.75 | |||||||
1990 | 38.45 | 43.36 | 51.10 | 60.07 | 67.45 | 84.64 | b | 82.13 | 81.58 | 76.24 | a | 60.76 | b | 47.83 | 33.35 | 60.58 | ||||||||||
1991 | 32.61 | 43.89 | 45.13 | 55.23 | 68.30 | a | 76.77 | 82.16 | 81.03 | 73.47 | 64.45 | 44.10 | 35.68 | 58.57 | ||||||||||||
1992 | 35.13 | 42.55 | 50.39 | 64.60 | 67.79 | b | 76.10 | 78.94 | 79.87 | a | 74.81 | c | 65.39 | 40.07 | 34.87 | 59.21 | ||||||||||
1993 | 39.39 | 38.75 | 51.40 | a | 57.10 | 67.42 | 76.00 | 83.00 | 78.45 | 72.96 | b | 58.86 | c | 44.03 | 39.77 | a | 58.93 | |||||||||
1994 | 41.79 | b | 38.93 | 54.10 | b | 57.10 | a | 70.58 | 83.10 | a | 85.65 | 84.06 | 74.80 | 59.55 | 45.85 | c | 40.68 | 61.35 | ||||||||
1995 | 38.19 | 50.04 | a | 50.20 | a | 55.53 | 60.06 | 73.69 | a | 81.00 | 83.55 | 73.77 | 64.00 | 54.27 | 43.84 | 60.68 | ||||||||||
1996 | 39.35 | 46.82 | a | 51.65 | 59.86 | a | 74.00 | 81.43 | 85.97 | 83.77 | 69.67 | 60.21 | b | 47.73 | 40.43 | a | 61.74 | |||||||||
1997 | 37.55 | 40.57 | 55.65 | 53.30 | 68.55 | 76.20 | 80.90 | 78.81 | 73.40 | 61.29 | 47.23 | 37.16 | 59.22 | |||||||||||||
1998 | 41.10 | 39.39 | 48.65 | 54.40 | 68.10 | 76.40 | 83.47 | a | 81.65 | 76.50 | 60.31 | b | 48.67 | 42.10 | 60.06 | |||||||||||
1999 | 43.26 | 46.79 | 57.90 | 52.90 | 65.35 | 76.97 | a | 80.87 | 75.97 | a | 70.73 | 67.19 | 57.93 | 40.55 | 61.37 | |||||||||||
2000 | 40.71 | 46.69 | 48.81 | 63.93 | 74.35 | 81.67 | 86.58 | 83.23 | 76.90 | a | 61.35 | 41.23 | 41.74 | 62.27 | ||||||||||||
2001 | 38.29 | 42.64 | 50.60 | a | 59.47 | 72.45 | b | 82.90 | 83.81 | 80.58 | 78.73 | 65.16 | 51.50 | 37.42 | 61.96 | |||||||||||
2002 | 38.19 | 41.07 | a | 49.83 | a | 65.07 | 72.94 | 86.03 | 88.71 | 83.06 | 72.43 | 58.57 | c | 48.23 | 40.00 | 62.01 | ||||||||||
2003 | 46.45 | 40.50 | 49.80 | a | 59.47 | 71.03 | 79.50 | 91.58 | 83.74 | 75.07 | a | 69.21 | b | 45.90 | 40.48 | 62.73 | ||||||||||
2004 | 36.87 | 38.14 | 58.39 | 58.30 | 71.28 | b | 80.73 | 84.81 | 81.10 | 71.48 | a | 59.55 | 46.45 | a | 40.29 | 60.61 | ||||||||||
2005 | 43.81 | 43.71 | 49.70 | a | 59.43 | 70.58 | 77.10 | a | 88.87 | 80.13 | 73.97 | 62.39 | 51.17 | a | 39.74 | 61.72 | ||||||||||
2006 | 42.16 | 44.75 | 47.84 | 63.23 | 75.21 | b | 84.77 | 84.06 | 80.30 | a | 68.53 | 57.10 | 50.90 | 39.42 | 61.52 | |||||||||||
2007 | 37.61 | 43.75 | 54.80 | a | 60.67 | 68.35 | 82.27 | 88.00 | 82.74 | 74.60 | 63.43 | a | 54.93 | 35.00 | b | 62.18 | ||||||||||
2008 | 33.23 | a | 41.34 | 49.42 | 57.83 | a | 67.73 | a | 80.03 | 86.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.41 | e | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.38 | 41.49 | 48.56 | 58.03 | 68.16 | 78.65 | 83.88 | 80.74 | 73.45 | 62.06 | 48.02 | 38.70 | 60.09 | |||||||||||||
S.D. | 3.87 | 3.95 | 4.13 | 4.15 | 3.60 | 3.65 | 2.50 | 2.35 | 2.94 | 3.43 | 4.39 | 3.36 | 1.67 | |||||||||||||
SKEW | 0.13 | -0.10 | 0.15 | 0.28 | 0.08 | 0.36 | 0.42 | -0.87 | -0.59 | -0.51 | 0.12 | -0.02 | 0.52 | |||||||||||||
MAX | 46.45 | 50.29 | 58.39 | 70.08 | 78.19 | 90.31 | 91.58 | 85.39 | 80.32 | 69.65 | 58.30 | 46.23 | 66.03 | |||||||||||||
MIN | 29.45 | 31.43 | 38.77 | 49.77 | 60.00 | 72.23 | 78.94 | 72.29 | 65.86 | 52.58 | 39.63 | 31.55 | 56.66 | |||||||||||||
YRS | 79 | 78 | 77 | 76 | 76 | 75 | 79 | 79 | 76 | 77 | 75 | 78 | 58 |