YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.81 | 53.43 | 50.10 | 44.23 | 41.37 | 49.99 | g | |||||
1934 | 42.71 | 43.74 | a | 47.35 | 52.05 | 54.03 | 56.03 | 57.06 | 59.48 | 55.37 | 50.84 | 45.82 | 41.81 | 50.52 | ||||||||||||
1935 | 38.53 | 41.41 | 40.11 | 45.70 | 49.98 | 54.92 | 57.71 | 58.52 | a | 55.27 | 46.92 | a | 40.87 | d | 41.66 | b | 47.63 | |||||||||
1936 | 39.76 | 32.57 | 40.20 | a | 47.57 | a | 52.83 | a | 57.34 | a | 59.03 | 59.92 | a | 53.67 | 51.27 | 42.35 | c | 41.26 | 48.15 | |||||||
1937 | 29.98 | 37.25 | 44.02 | b | 45.53 | 50.69 | b | 56.50 | 57.71 | 57.38 | a | 55.41 | c | 51.78 | b | 44.53 | 42.26 | b | 47.75 | |||||||
1938 | 40.34 | b | 39.59 | 42.42 | a | 47.10 | 50.71 | 55.08 | d | 58.79 | 55.89 | 57.38 | 49.36 | b | 41.97 | 41.98 | g | 48.97 | a | |||||||
1939 | 41.94 | e | 38.54 | d | 42.16 | c | 47.05 | b | 51.50 | a | 53.76 | a | 57.47 | b | 59.92 | a | 56.36 | b | 49.05 | b | 47.33 | c | 44.88 | c | 49.16 | |
1940 | 42.04 | f | 43.16 | a | 45.55 | 49.39 | b | 54.27 | a | 56.47 | a | 58.37 | 60.35 | 57.77 | b | 52.56 | f | 41.35 | d | 42.55 | c | 50.92 | b | |||
1941 | 41.58 | a | 43.50 | e | 46.63 | 49.44 | c | 52.26 | b | 55.97 | a | 62.60 | a | 58.27 | 53.96 | b | 50.22 | a | 44.79 | b | 40.41 | b | 49.97 | |||
1942 | 39.87 | a | 41.79 | 42.92 | a | 47.45 | b | 52.25 | c | 55.60 | 60.67 | b | 59.71 | 55.37 | 50.94 | 41.57 | b | 40.59 | b | 49.06 | ||||||
1943 | 34.71 | g | 42.02 | d | 41.00 | d | 48.61 | b | 48.79 | b | 53.85 | c | 56.41 | b | 57.09 | b | 57.02 | c | 50.34 | f | 44.94 | f | 40.70 | d | 49.50 | c |
1944 | 40.64 | c | 40.28 | d | 41.80 | d | 46.54 | d | 51.22 | f | 54.19 | i | 58.75 | c | 58.45 | c | 58.32 | 53.27 | a | 45.55 | 39.66 | 48.32 | b | |||
1945 | 41.90 | 42.73 | 42.89 | 44.76 | e | 52.25 | g | 55.26 | a | 58.00 | 57.92 | a | 53.88 | 50.63 | 41.70 | 40.27 | 48.18 | a | ||||||||
1946 | 41.26 | 40.95 | 42.55 | 45.88 | 53.10 | 54.78 | 58.60 | 58.31 | 54.47 | 47.37 | 40.55 | 39.39 | 48.10 | |||||||||||||
1947 | 36.34 | 42.57 | 44.76 | 48.67 | 53.95 | 56.42 | 59.16 | 57.73 | 55.70 | 49.32 | 43.02 | a | 42.00 | 49.14 | ||||||||||||
1948 | 39.53 | 39.00 | 41.34 | 44.65 | 51.15 | 58.30 | 58.34 | 57.37 | 54.87 | 48.73 | 42.97 | 36.77 | 47.75 | |||||||||||||
1949 | 32.79 | 36.79 | 43.26 | 46.83 | 53.03 | 54.17 | 56.93 | a | 57.90 | 57.17 | 47.00 | 47.95 | 39.03 | 47.74 | ||||||||||||
1950 | 26.87 | 38.88 | 41.26 | 44.78 | 48.42 | 56.20 | 57.84 | 58.15 | a | 54.83 | 47.40 | 42.85 | 43.31 | 46.73 | ||||||||||||
1951 | 38.02 | 39.34 | 38.76 | 47.43 | 49.73 | 56.25 | 58.27 | 54.88 | a | ----- | z | 49.18 | a | 44.18 | 37.89 | 46.72 | a | |||||||||
1952 | 36.77 | 39.41 | 41.34 | 46.05 | 50.60 | 52.40 | 57.15 | 58.13 | 56.53 | a | 53.69 | 43.42 | 42.29 | 48.15 | ||||||||||||
1953 | 41.83 | b | 41.73 | 43.14 | b | 47.10 | a | 53.37 | 54.67 | a | 59.09 | d | 61.03 | 58.18 | 51.83 | a | 47.48 | a | 43.53 | a | 50.25 | |||||
1954 | 36.61 | 43.37 | b | 41.17 | b | 45.19 | a | 52.32 | a | 54.03 | 57.08 | 57.56 | 57.72 | 50.16 | 48.17 | 41.63 | a | 48.75 | ||||||||
1955 | 40.89 | 39.52 | 39.00 | 44.60 | 49.55 | a | 55.69 | a | 57.09 | b | 58.28 | a | 56.84 | a | 49.17 | a | 38.21 | b | 37.86 | b | 47.23 | |||||
1956 | 38.45 | a | 37.12 | a | 41.00 | a | 49.33 | 55.32 | 55.28 | 61.24 | 60.31 | 56.72 | a | 49.55 | 42.85 | 40.91 | b | 49.01 | ||||||||
1957 | 34.08 | 38.95 | h | 43.52 | 48.47 | 55.52 | 57.08 | 58.79 | 59.84 | 61.62 | 50.50 | 44.43 | 42.63 | 50.59 | a | |||||||||||
1958 | 43.00 | a | 46.17 | a | 44.34 | 48.05 | a | 55.85 | 62.19 | a | 65.60 | a | 62.22 | b | 57.67 | 51.28 | b | 41.81 | d | 43.07 | a | 51.77 | ||||
1959 | 39.52 | f | 40.22 | a | 43.81 | 48.32 | b | 51.81 | 57.47 | 61.47 | 58.37 | 55.65 | 49.86 | b | 42.21 | a | 40.89 | 50.01 | a | |||||||
1960 | 39.35 | 41.48 | 42.35 | 47.95 | a | 51.02 | 55.73 | 61.24 | 59.53 | 56.38 | a | 51.87 | 43.92 | 40.91 | b | 49.31 | ||||||||||
1961 | 43.26 | 43.93 | 45.07 | a | 47.72 | 53.19 | b | 60.03 | 62.32 | 61.90 | 54.53 | a | 48.23 | 40.32 | 39.18 | 49.97 | ||||||||||
1962 | 39.02 | 42.20 | 41.39 | 48.45 | a | 50.06 | 55.06 | c | 57.89 | 59.21 | 57.77 | 51.08 | 46.03 | 42.53 | 49.22 | |||||||||||
1963 | 37.48 | 45.48 | 43.76 | 48.53 | 53.77 | 56.32 | 58.53 | 59.82 | 60.53 | 52.69 | 44.58 | 42.56 | 50.34 | |||||||||||||
1964 | 41.73 | 41.78 | 44.11 | 45.83 | 50.81 | 55.66 | a | 58.15 | 58.76 | 54.88 | 49.61 | 40.60 | 35.68 | 48.13 | ||||||||||||
1965 | 37.74 | 41.75 | 44.65 | 47.93 | a | 49.77 | a | 55.65 | 59.97 | 59.56 | 55.02 | 52.29 | 46.22 | 40.45 | b | 49.25 | ||||||||||
1966 | 39.18 | 41.87 | a | 43.23 | 47.31 | a | 51.52 | 55.80 | 58.02 | 59.90 | 57.72 | 49.15 | 44.07 | 42.31 | 49.17 | |||||||||||
1967 | 40.52 | 42.98 | 42.23 | 45.40 | 52.18 | 59.58 | 60.84 | 62.40 | 59.35 | 51.56 | 45.63 | 40.92 | 50.30 | |||||||||||||
1968 | 40.34 | 43.53 | 45.76 | 46.73 | 53.33 | a | 56.33 | 61.78 | a | 59.44 | 57.05 | 49.44 | 44.93 | a | 36.69 | 49.61 | ||||||||||
1969 | 31.76 | 39.46 | 44.58 | 47.38 | 55.21 | 60.48 | 60.06 | 59.35 | 57.02 | 50.43 | b | 44.48 | f | 42.90 | 49.88 | a | ||||||||||
1970 | 40.11 | 44.09 | 44.52 | 46.45 | 51.26 | d | 58.68 | 59.44 | 58.21 | 54.08 | 48.85 | a | 44.30 | 39.37 | 49.11 | |||||||||||
1971 | 40.37 | 41.64 | 40.52 | 47.58 | 52.73 | 53.95 | 59.85 | 62.44 | 55.90 | 50.31 | 44.88 | 37.34 | 48.96 | |||||||||||||
1972 | 36.39 | 41.16 | 44.56 | 44.42 | 55.18 | 56.47 | 61.74 | 61.76 | 54.45 | 49.60 | 44.80 | 38.02 | 49.04 | |||||||||||||
1973 | 38.63 | a | 41.93 | 44.45 | 47.70 | 52.94 | 55.52 | 59.71 | 57.03 | 58.25 | 49.77 | 41.70 | 43.74 | 49.28 | ||||||||||||
1974 | 38.95 | a | 41.59 | 43.85 | 47.90 | 49.94 | 55.45 | 58.53 | 60.27 | 60.78 | 51.13 | 45.32 | 43.32 | 49.75 | ||||||||||||
1975 | 39.55 | 39.32 | 42.58 | a | 44.55 | 52.13 | 55.45 | 60.53 | a | 58.15 | 58.45 | 50.13 | a | 44.48 | 40.63 | 48.83 | ||||||||||
1976 | 41.48 | 41.09 | 41.32 | 47.77 | 51.71 | 54.55 | 59.27 | 58.00 | 58.57 | 50.77 | 44.95 | 42.97 | a | 49.37 | ||||||||||||
1977 | 39.48 | 45.07 | 43.30 | a | 48.67 | 51.35 | 57.25 | 58.05 | 62.06 | 55.37 | 49.00 | 42.20 | 40.00 | 49.32 | ||||||||||||
1978 | 41.35 | 43.52 | 45.97 | 47.97 | 52.19 | 60.52 | 61.25 | a | 60.95 | 56.53 | a | 51.84 | 40.82 | 38.08 | 50.08 | |||||||||||
1979 | 35.61 | 39.86 | 45.71 | 48.50 | 53.68 | 56.10 | 61.18 | 60.56 | 60.27 | 52.08 | 44.03 | 44.13 | 50.14 | |||||||||||||
1980 | 36.08 | 43.22 | 43.94 | ----- | z | 52.85 | 55.35 | 59.68 | 58.58 | 57.53 | 52.18 | 45.65 | 43.83 | a | 49.90 | a | ||||||||||
1981 | 44.58 | 43.94 | a | 47.15 | 47.85 | ----- | z | 55.25 | 59.33 | b | 63.08 | 57.21 | a | 49.47 | 45.48 | 41.47 | a | 50.44 | a | |||||||
1982 | ----- | z | 41.46 | 43.43 | a | 45.12 | a | 52.03 | 58.97 | a | 59.03 | a | 60.47 | 58.78 | a | 51.27 | a | 42.28 | a | 40.80 | a | 50.33 | a | |||
1983 | 44.15 | 44.91 | 47.33 | a | 49.27 | 55.68 | c | 57.38 | a | 60.24 | 62.18 | a | 56.78 | a | 49.60 | 46.70 | 35.08 | a | 50.77 | |||||||
1984 | 42.04 | d | 44.24 | 47.11 | 48.63 | 51.35 | 55.43 | a | 60.35 | a | 60.58 | a | 56.28 | 48.97 | 43.48 | 37.00 | 49.62 | |||||||||
1985 | 38.55 | 39.41 | 42.18 | 45.33 | 50.27 | 53.77 | 58.77 | a | 57.24 | 53.10 | 47.67 | a | 33.48 | c | 34.71 | 46.21 | ||||||||||
1986 | 41.55 | 38.48 | 43.82 | a | 43.40 | 48.97 | 55.15 | 53.53 | 60.43 | b | 53.00 | 48.05 | 42.12 | b | 38.74 | 47.27 | ||||||||||
1987 | 38.13 | a | 42.19 | a | 42.87 | a | 46.12 | 50.08 | 52.98 | b | 56.10 | 56.33 | a | 54.67 | a | 47.88 | a | 44.03 | 37.45 | b | 47.40 | |||||
1988 | 36.13 | a | 39.43 | b | 40.87 | 44.78 | a | 50.88 | a | 55.86 | a | 59.52 | 60.16 | 56.69 | c | 51.75 | a | 44.78 | 41.13 | 48.50 | ||||||
1989 | 39.43 | a | 34.24 | a | 41.48 | 49.65 | 52.56 | 58.53 | a | 58.52 | 59.05 | 59.19 | a | 50.47 | 45.43 | 43.02 | a | 49.30 | ||||||||
1990 | 41.77 | 39.00 | b | 43.77 | 49.28 | 52.47 | 57.08 | 62.48 | a | 61.64 | b | 59.97 | 49.52 | 45.65 | 35.84 | 49.87 | ||||||||||
1991 | 38.66 | 44.74 | a | 41.80 | c | 46.86 | a | 51.94 | 55.17 | 59.63 | 59.65 | 58.58 | 49.56 | 45.33 | 43.18 | 49.59 | ||||||||||
1992 | 42.87 | a | 44.47 | 47.52 | a | 49.47 | a | 54.81 | b | 59.79 | a | 61.93 | d | 60.87 | a | 55.62 | 51.94 | 44.18 | 38.61 | 51.00 | ||||||
1993 | 34.81 | 38.17 | a | 44.97 | 48.43 | 57.16 | 58.27 | 58.85 | 61.11 | 57.12 | a | 51.89 | 41.14 | a | 41.28 | b | 49.43 | |||||||||
1994 | 44.17 | a | 39.80 | 45.56 | 49.67 | 54.47 | 56.03 | a | 60.78 | a | 61.28 | a | 58.40 | 49.69 | b | 41.88 | 39.89 | 50.14 | ||||||||
1995 | 41.27 | 43.34 | 44.52 | 48.54 | b | 56.47 | 58.48 | 61.98 | 58.40 | 59.75 | 50.81 | 46.67 | 40.60 | 50.90 | ||||||||||||
1996 | 38.63 | 40.16 | 44.22 | b | 48.95 | 50.55 | 56.72 | a | 62.07 | b | 61.68 | 55.32 | 49.44 | 41.95 | 36.71 | 48.87 | ||||||||||
1997 | 39.72 | b | 42.07 | a | 44.39 | 48.00 | a | 55.85 | a | 57.67 | 61.92 | 62.71 | ----- | z | 51.82 | ----- | z | ----- | z | 51.57 | c | |||||
1998 | 42.52 | g | 45.04 | 45.73 | 48.62 | 54.47 | a | 57.97 | a | 62.10 | 62.71 | 59.17 | 50.94 | 45.90 | 40.95 | b | 52.14 | a | ||||||||
1999 | 40.95 | 42.12 | 42.94 | 47.84 | a | 50.58 | 59.08 | 64.35 | 64.15 | d | 61.03 | 54.89 | 51.82 | 46.79 | b | 52.21 | ||||||||||
2000 | 44.80 | c | 45.19 | 48.29 | 52.45 | 55.53 | 61.48 | 63.92 | 61.68 | 59.48 | ----- | z | 44.48 | 42.84 | 52.74 | a | ||||||||||
2001 | 43.44 | 41.95 | 45.17 | a | 49.63 | 54.76 | 57.95 | 60.74 | ----- | z | 58.47 | 50.85 | 46.45 | a | 41.65 | 50.10 | a | |||||||||
2002 | 43.31 | 44.12 | 43.81 | 54.60 | a | 58.55 | 60.92 | 61.80 | a | 59.73 | 57.32 | 49.08 | 46.05 | b | 42.50 | 51.82 | ||||||||||
2003 | 44.44 | 41.17 | b | 45.60 | b | 46.95 | 51.60 | 59.10 | 61.42 | 60.45 | 58.47 | 52.06 | 42.00 | 40.94 | 50.35 | |||||||||||
2004 | 40.56 | 43.16 | 45.48 | 50.57 | ----- | z | 58.80 | 62.74 | 62.16 | 56.20 | 51.24 | 45.03 | 43.31 | 50.84 | a | |||||||||||
2005 | 41.50 | 40.79 | 43.47 | 48.63 | 55.95 | b | ----- | z | 60.82 | 60.58 | 56.05 | 50.47 | 43.76 | e | ----- | z | 50.20 | b | ||||||||
2006 | 43.61 | 41.48 | 43.50 | 48.18 | 53.76 | 59.10 | 61.37 | 59.32 | 57.85 | 50.26 | 43.37 | 41.56 | 50.28 | |||||||||||||
2007 | 39.94 | 42.80 | 45.41 | b | 47.13 | 52.03 | 55.86 | e | ----- | z | ----- | z | ----- | z | 49.05 | 43.70 | 40.52 | 46.27 | c | |||||||
2008 | 38.95 | 42.14 | 41.31 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.80 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.57 | 41.47 | 43.57 | 47.61 | 52.58 | 56.64 | 59.75 | 59.72 | 56.89 | 50.28 | 43.87 | 40.70 | 49.27 | |||||||||||||
S.D. | 3.37 | 2.53 | 2.06 | 1.95 | 2.17 | 2.08 | 2.09 | 1.85 | 2.01 | 1.57 | 2.54 | 2.45 | 1.25 | |||||||||||||
SKEW | -1.24 | -0.83 | 0.01 | 0.56 | 0.39 | 0.57 | 0.10 | -0.05 | 0.17 | 0.16 | -0.62 | -0.45 | -0.07 | |||||||||||||
MAX | 44.80 | 46.17 | 48.29 | 54.60 | 58.55 | 62.19 | 65.60 | 64.15 | 61.62 | 54.89 | 51.82 | 46.79 | 52.21 | |||||||||||||
MIN | 26.87 | 32.57 | 38.76 | 43.40 | 48.42 | 52.40 | 53.53 | 54.88 | 53.00 | 46.92 | 33.48 | 34.71 | 46.21 | |||||||||||||
YRS | 70 | 74 | 75 | 73 | 70 | 72 | 73 | 73 | 72 | 72 | 72 | 72 | 55 |