YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | 36.75 | 50.30 | a | 57.53 | 67.39 | 73.12 | a | 82.78 | v | 69.57 | q | 69.95 | b | 57.21 | 49.42 | 35.00 | e | 55.18 | c | |||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.42 | 78.26 | 73.26 | 68.68 | 60.97 | 49.02 | 33.79 | 62.48 | e | |||||||
1968 | 38.75 | a | 41.71 | 48.25 | e | 52.89 | b | 64.32 | 76.43 | 76.35 | a | 75.02 | 68.52 | 60.82 | 45.52 | 40.20 | a | 57.40 | ||||||||
1969 | 45.50 | 42.96 | 40.34 | 57.08 | 65.47 | 70.58 | 80.21 | 77.60 | a | 69.38 | 55.35 | 45.22 | 39.31 | 57.42 | ||||||||||||
1970 | 34.44 | 43.93 | 42.95 | 52.85 | 66.05 | 70.27 | 77.05 | 76.47 | 66.67 | 53.02 | 46.75 | 42.95 | 56.12 | |||||||||||||
1971 | 38.24 | 41.29 | 48.71 | 55.53 | 62.90 | 74.62 | 76.40 | 71.56 | 66.30 | 56.68 | a | 48.32 | 37.52 | 56.51 | ||||||||||||
1972 | 39.52 | 43.05 | 52.32 | 58.42 | 65.08 | 75.58 | 76.06 | 74.21 | 68.72 | 58.13 | 39.33 | 37.98 | 57.37 | |||||||||||||
1973 | 34.85 | 39.82 | 46.66 | 49.64 | a | 62.56 | 73.77 | 76.66 | 76.98 | a | 67.97 | 60.97 | 51.57 | 39.77 | 56.77 | |||||||||||
1974 | 39.16 | 42.00 | 53.87 | 57.35 | 71.79 | 76.70 | 79.34 | 74.92 | 65.45 | 59.24 | 46.50 | 37.31 | 58.64 | |||||||||||||
1975 | 38.24 | 39.45 | 48.16 | 54.43 | 62.66 | 73.80 | 75.10 | 77.26 | 66.95 | 60.06 | 46.50 | 41.58 | 57.02 | |||||||||||||
1976 | 38.61 | 48.34 | 49.00 | a | 58.58 | 63.47 | 74.38 | 75.82 | 76.10 | 68.88 | 53.60 | 42.27 | 37.55 | 57.22 | ||||||||||||
1977 | 33.53 | 42.25 | 45.60 | a | 57.18 | 67.37 | 78.22 | 79.98 | 78.65 | 72.75 | 60.40 | 49.05 | 44.67 | a | 59.14 | |||||||||||
1978 | 33.95 | 37.70 | 49.27 | 59.98 | 65.13 | 75.80 | 80.10 | 76.43 | a | 69.27 | 60.13 | 47.22 | 33.97 | 57.41 | ||||||||||||
1979 | 30.55 | a | 40.93 | 47.44 | 55.63 | 64.66 | 71.55 | 78.92 | 74.80 | a | 70.10 | 62.10 | 40.68 | 39.52 | 56.41 | |||||||||||
1980 | 38.70 | a | 40.75 | a | 46.85 | 52.98 | 62.37 | 80.32 | 83.81 | 77.82 | 71.28 | 57.05 | 45.36 | a | 46.28 | a | 58.63 | |||||||||
1981 | 38.81 | 44.46 | 47.47 | 62.87 | 65.06 | 77.78 | 79.69 | 75.16 | 69.83 | 58.97 | 51.43 | 43.48 | 59.59 | |||||||||||||
1982 | 40.15 | 39.98 | a | 50.18 | a | 57.45 | b | 65.42 | 73.83 | 78.72 | b | 77.18 | 71.11 | b | 57.80 | a | 45.83 | 36.61 | 57.86 | |||||||
1983 | 37.95 | 41.14 | 47.62 | a | 51.88 | 61.55 | 72.47 | a | 80.23 | 79.40 | 73.93 | a | 60.32 | 50.41 | a | 33.00 | c | 57.49 | ||||||||
1984 | 36.59 | b | 43.34 | 47.31 | 54.24 | a | 68.85 | 74.58 | 77.95 | 74.97 | 68.37 | 54.73 | 46.20 | 39.10 | 57.19 | |||||||||||
1985 | 32.79 | b | 39.61 | 50.73 | 59.02 | 66.03 | 74.88 | 77.44 | 77.35 | 68.60 | 59.00 | a | 48.42 | 37.35 | 57.60 | |||||||||||
1986 | 44.56 | 41.64 | 53.08 | 59.42 | 64.98 | 72.48 | 78.58 | 76.60 | 69.13 | 56.44 | 44.58 | 37.24 | 58.23 | |||||||||||||
1987 | 35.52 | 41.70 | 46.06 | 55.55 | 64.03 | 72.67 | 78.24 | 75.47 | 68.73 | 60.85 | 46.22 | 36.44 | 56.79 | |||||||||||||
1988 | 34.47 | 42.79 | 48.16 | 56.28 | 64.27 | 74.28 | 76.69 | 75.71 | 67.85 | 61.35 | 48.93 | 36.47 | a | 57.27 | ||||||||||||
1989 | 40.97 | 36.78 | a | 53.77 | 59.97 | 69.94 | 70.27 | 77.24 | 75.44 | 63.75 | v | 60.38 | k | 49.79 | b | 32.83 | d | 56.70 | b | |||||||
1990 | 40.08 | a | 38.00 | m | 45.06 | v | 58.06 | l | 63.23 | a | 80.23 | 75.52 | b | 72.34 | c | 69.31 | a | 57.57 | b | 49.52 | e | 31.88 | f | 63.48 | d | |
1991 | 35.10 | b | 41.87 | b | 48.05 | b | 56.63 | c | 65.64 | f | 72.54 | f | 74.07 | d | 73.45 | 65.00 | e | 59.30 | d | 41.30 | g | 37.36 | b | 54.54 | c | |
1992 | 35.26 | b | 42.85 | c | 49.17 | j | 59.38 | i | 61.78 | f | 70.63 | c | 76.74 | d | 75.10 | b | 69.65 | c | 61.03 | b | 41.30 | b | 37.36 | b | 56.66 | c |
1993 | 38.93 | c | 40.68 | c | 48.39 | d | 56.35 | c | 64.81 | e | 73.60 | f | 88.13 | e | 90.40 | f | 60.85 | m | 56.55 | j | 43.60 | d | 39.00 | c | 52.49 | d |
1994 | 37.21 | e | 41.64 | f | 49.03 | p | 56.93 | c | 65.90 | g | 80.07 | o | 78.55 | 79.62 | b | 69.95 | b | 57.12 | j | 47.81 | f | 42.03 | b | 60.71 | f | |
1995 | 39.28 | b | 47.24 | g | 50.00 | g | 51.56 | m | 63.33 | g | 73.50 | h | 78.91 | n | 80.78 | h | 69.24 | i | 59.52 | k | 52.62 | j | 40.57 | d | 39.92 | j |
1996 | 40.62 | e | 44.07 | a | 47.12 | a | 56.88 | f | 73.69 | d | 76.54 | f | 77.79 | 75.32 | f | 66.74 | e | 57.96 | f | 46.62 | b | 42.57 | b | 54.90 | d | |
1997 | 34.12 | f | 39.06 | d | 50.61 | c | 49.92 | d | 64.52 | e | 71.89 | h | 77.35 | g | 74.12 | f | 69.24 | m | 58.62 | b | 43.19 | c | 32.37 | d | 48.33 | e |
1998 | 40.64 | c | 40.58 | d | 45.11 | c | 52.02 | d | 67.08 | g | 75.11 | b | 80.56 | g | 74.58 | f | 73.59 | h | 58.98 | g | 49.30 | b | 39.30 | c | 48.87 | e |
1999 | 43.24 | f | 47.52 | b | 49.08 | f | 53.81 | f | ----- | z | ----- | z | ----- | z | ----- | z | 67.55 | j | 57.60 | j | 50.72 | 38.04 | e | 45.42 | i | |
2000 | 42.73 | g | 50.79 | h | 49.37 | e | 59.33 | g | 70.04 | f | 74.63 | d | 79.10 | g | 78.44 | d | 74.00 | e | 56.68 | c | 39.79 | b | 34.00 | c | 58.13 | e |
2001 | 33.54 | d | 42.48 | e | 47.22 | f | 59.82 | b | 65.26 | f | 76.65 | f | 81.56 | e | 76.30 | c | 70.24 | i | 60.48 | k | 50.36 | e | 40.19 | d | 54.89 | e |
2002 | 39.00 | d | 39.38 | d | 46.39 | i | 63.02 | j | 67.61 | h | 79.27 | d | 78.11 | d | 79.10 | g | 69.41 | g | 56.85 | g | 44.75 | f | 44.21 | l | 58.94 | h |
2003 | 41.06 | n | 43.16 | f | 50.30 | k | 57.79 | k | 69.14 | j | 71.44 | f | 81.17 | k | 78.29 | e | 70.33 | f | 62.50 | i | 47.20 | c | 41.54 | f | 62.75 | j |
2004 | 41.54 | g | 35.56 | l | 53.00 | d | 55.71 | i | 70.75 | i | 76.67 | l | 76.02 | j | 73.80 | k | 68.34 | e | 58.17 | e | 43.85 | g | 40.84 | f | 59.84 | i |
2005 | 42.81 | j | 43.38 | g | 45.59 | h | 56.17 | i | 64.48 | h | 75.15 | g | 79.46 | f | 75.30 | k | 73.00 | h | 59.26 | j | 48.73 | h | 39.94 | e | 39.94 | k |
2006 | 42.62 | k | 41.21 | k | 48.81 | j | 61.59 | h | 68.66 | i | 77.92 | d | 80.30 | f | 76.15 | e | 65.04 | g | 57.82 | l | 46.85 | j | 39.15 | h | 77.04 | j |
2007 | 31.02 | c | 38.29 | n | 52.42 | l | 51.75 | t | 62.66 | f | 71.46 | f | 78.17 | h | 79.54 | f | 72.15 | g | 61.98 | h | 48.73 | h | 35.39 | h | 31.02 | k |
2008 | 36.33 | d | 44.46 | f | 49.28 | h | 56.82 | m | 64.79 | e | 77.23 | h | 76.29 | g | 74.79 | g | 67.82 | b | ----- | z | 47.02 | j | 42.20 | i | 56.31 | i |
2009 | 41.26 | f | 45.46 | e | ----- | z | ----- | z | 68.12 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.46 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.44 | 41.71 | 48.52 | 56.15 | 65.44 | 74.65 | 78.37 | 76.07 | 69.01 | 58.50 | 46.65 | 38.41 | 57.53 | |||||||||||||
S.D. | 3.39 | 2.61 | 3.03 | 3.17 | 2.80 | 2.80 | 2.71 | 1.94 | 2.11 | 2.38 | 3.32 | 3.36 | 0.89 | |||||||||||||
SKEW | 0.09 | 0.40 | -0.32 | -0.26 | 1.35 | 0.34 | 1.62 | -0.27 | 0.56 | -0.62 | -0.60 | 0.19 | 0.70 | |||||||||||||
MAX | 45.50 | 48.34 | 53.87 | 62.87 | 73.69 | 80.32 | 88.13 | 79.62 | 74.00 | 62.10 | 51.57 | 46.28 | 59.59 | |||||||||||||
MIN | 30.55 | 36.75 | 40.34 | 49.64 | 61.55 | 70.27 | 74.07 | 71.56 | 65.00 | 53.02 | 39.33 | 32.37 | 56.12 | |||||||||||||
YRS | 34 | 33 | 30 | 29 | 28 | 30 | 31 | 31 | 31 | 29 | 34 | 36 | 21 |