YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.45 | i | 53.98 | ----- | z | 40.21 | 47.10 | j | ||
1937 | 30.05 | c | 36.39 | 44.50 | 43.60 | a | 51.25 | a | 57.67 | a | 61.18 | a | 58.90 | 60.03 | 53.92 | 45.43 | a | 41.64 | b | 48.72 | ||||||
1938 | 41.08 | 40.50 | b | 42.12 | a | 47.21 | b | ----- | z | ----- | z | 64.06 | 60.10 | 60.97 | 50.50 | 40.43 | 38.44 | 48.54 | b | |||||||
1939 | 39.38 | c | ----- | z | 41.60 | a | ----- | z | 52.09 | d | 54.07 | a | 58.02 | a | 61.44 | e | 58.95 | b | 50.75 | a | 48.62 | d | 46.96 | f | 51.66 | c |
1940 | 40.97 | 41.95 | 45.81 | b | 49.64 | i | 55.15 | 58.25 | 59.24 | 62.55 | ----- | z | 51.55 | a | 40.30 | 41.58 | a | 49.73 | b | |||||||
1941 | 41.65 | a | 43.92 | b | 49.68 | a | 50.98 | b | 51.90 | 56.02 | 64.03 | b | 59.97 | b | ----- | z | ----- | z | ----- | z | ----- | z | 52.27 | d | ||
1942 | 38.07 | j | ----- | z | ----- | z | ----- | z | 52.35 | g | ----- | z | 67.37 | 65.68 | 60.67 | d | 57.31 | w | ----- | z | ----- | z | 64.57 | i | ||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.67 | l | 60.17 | a | 58.43 | b | 60.58 | 51.98 | f | 45.37 | 39.10 | 52.73 | g | |||
1944 | 38.62 | g | 39.09 | 41.00 | 45.67 | l | 51.98 | f | 55.78 | e | 61.10 | a | 59.47 | b | 60.28 | c | 53.84 | 43.94 | l | 39.83 | p | 52.94 | e | |||
1945 | 40.11 | 39.40 | m | 40.03 | p | 43.77 | q | 54.45 | i | 56.70 | t | 60.98 | e | 61.11 | h | 56.11 | p | 52.09 | n | 39.91 | n | 38.84 | l | 50.55 | j | |
1946 | 38.85 | 40.24 | k | 41.36 | m | 46.62 | i | 57.86 | i | 57.35 | q | 64.47 | m | 65.36 | i | 59.28 | l | 47.61 | m | 38.82 | m | 39.46 | s | 38.85 | k | |
1947 | 35.72 | a | 42.67 | j | 47.23 | p | 48.45 | j | 58.61 | m | ----- | z | 61.65 | h | 62.38 | n | 59.83 | o | 50.11 | l | 41.78 | l | 40.98 | k | 35.72 | k |
1948 | 38.00 | n | 35.17 | n | 38.85 | k | 42.17 | l | 50.35 | n | ----- | z | 66.17 | m | ----- | z | 60.25 | l | ----- | z | 41.05 | t | 34.08 | k | ----- | z |
1949 | 29.95 | j | 35.16 | l | 43.60 | k | 47.70 | o | 54.12 | s | ----- | z | 59.13 | h | 59.44 | e | 61.90 | j | 47.54 | q | 48.74 | m | 37.50 | r | 59.44 | k |
1950 | 23.82 | i | 35.84 | c | 39.53 | l | 44.20 | o | 48.35 | k | 59.36 | p | 63.68 | q | 63.71 | g | 62.22 | n | ----- | z | ----- | z | ----- | z | 35.84 | k |
1951 | ----- | z | ----- | z | ----- | z | 55.00 | p | ----- | z | 60.17 | u | 62.21 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.21 | k |
1952 | ----- | z | ----- | z | ----- | z | 47.24 | k | ----- | z | 56.55 | t | 63.84 | b | 65.52 | 64.42 | e | ----- | z | 37.00 | r | 39.22 | m | 64.59 | i | |
1953 | 42.07 | j | 40.38 | t | 43.42 | y | 44.70 | y | 49.88 | k | 50.32 | h | 63.45 | a | 64.04 | f | ----- | z | ----- | z | 45.38 | r | 40.57 | x | 63.45 | k |
1954 | 34.05 | k | 38.65 | o | 38.77 | t | 42.18 | p | 50.11 | l | 50.91 | h | 57.25 | g | 57.58 | 56.10 | e | 49.52 | i | 46.60 | d | 40.50 | e | 50.19 | h | |
1955 | 37.87 | h | 36.28 | a | 35.60 | 40.75 | 46.63 | a | 54.73 | 57.48 | c | 59.25 | a | 56.72 | 49.78 | d | 38.30 | g | 36.24 | l | 48.58 | c | ||||
1956 | 35.86 | j | 33.65 | i | 38.12 | j | 48.92 | f | 56.33 | d | 53.25 | h | 62.55 | 61.81 | 57.04 | c | 47.15 | k | 42.50 | l | 37.50 | l | 59.43 | h | ||
1957 | 31.22 | f | 37.14 | f | 41.36 | j | 47.28 | e | 54.24 | h | 55.52 | j | 56.74 | d | 58.36 | b | 61.55 | a | 49.58 | f | 41.58 | l | 41.26 | j | 55.98 | h |
1958 | 42.33 | h | 44.23 | d | 41.34 | f | 45.84 | e | 57.54 | d | 63.00 | e | 66.84 | 62.31 | 57.74 | g | 51.77 | g | 39.33 | j | 44.12 | o | 56.63 | f | ||
1959 | 36.96 | f | 39.00 | d | 40.60 | f | 45.98 | d | 49.98 | b | 55.32 | 61.87 | 58.53 | 54.55 | 50.05 | a | 42.23 | d | 41.25 | o | 50.83 | c | ||||
1960 | 37.32 | f | 39.30 | f | 41.47 | a | 46.75 | d | 47.70 | a | 54.67 | 61.40 | a | 58.95 | 56.70 | 50.79 | 41.91 | a | 38.69 | 49.90 | b | |||||
1961 | 41.67 | b | 40.89 | j | 41.45 | 44.27 | 50.98 | 59.65 | 64.19 | 64.95 | a | 56.93 | h | 47.20 | a | 39.57 | 37.87 | 49.18 | b | |||||||
1962 | 37.92 | 40.35 | a | 39.52 | 46.79 | a | 47.82 | 54.52 | b | 59.27 | 59.18 | a | 58.34 | a | 51.05 | b | 44.15 | 42.08 | 48.42 | |||||||
1963 | 35.38 | c | 45.91 | 41.16 | 45.03 | 51.57 | a | 55.97 | a | 57.66 | 61.75 | a | 60.93 | h | 49.50 | o | 39.86 | p | 40.53 | m | 49.30 | d | ||||
1964 | 38.55 | j | 39.90 | c | 40.88 | a | 44.79 | a | 50.53 | a | 54.62 | b | 57.77 | 57.21 | b | 55.97 | 51.84 | b | 40.02 | a | 33.38 | b | 47.90 | a | ||
1965 | ----- | z | 40.00 | 44.21 | b | 46.42 | 48.52 | b | 55.75 | 61.95 | a | 62.61 | 56.32 | 52.74 | 44.90 | f | 37.12 | b | 50.56 | b | ||||||
1966 | 37.58 | 39.75 | 41.75 | a | 47.12 | 50.76 | 54.20 | 58.85 | a | 60.24 | 58.95 | 49.31 | 43.33 | f | ----- | z | 49.85 | b | ||||||||
1967 | 38.77 | i | 40.36 | 38.68 | 42.86 | e | 50.78 | b | 61.24 | c | 61.24 | 65.93 | c | 61.02 | 50.05 | 43.88 | a | 35.02 | j | 51.60 | b | |||||
1968 | 38.23 | a | 43.40 | i | 43.52 | j | 43.95 | 51.55 | a | 54.90 | 62.63 | 59.58 | 57.02 | 47.08 | 42.58 | 34.36 | b | 49.19 | b | |||||||
1969 | 28.41 | c | 35.84 | 41.97 | 44.84 | b | 54.30 | a | 61.41 | a | 59.02 | b | 57.68 | 57.02 | a | 49.92 | 45.13 | c | 39.94 | e | 47.96 | |||||
1970 | 37.77 | 43.96 | b | 43.57 | a | 41.68 | 49.07 | a | 58.25 | 59.16 | 60.40 | 54.16 | b | 48.11 | 41.21 | a | 35.09 | d | 47.70 | |||||||
1971 | 34.70 | i | 38.23 | b | 37.62 | a | 45.41 | a | 50.94 | 52.10 | a | 61.56 | 62.73 | 54.30 | 48.98 | 41.65 | c | 33.77 | 47.94 | a | ||||||
1972 | 32.40 | 37.73 | a | 42.39 | 41.41 | g | 55.63 | 55.85 | 62.13 | 63.34 | 55.77 | 50.21 | 42.67 | 35.57 | b | 48.52 | a | |||||||||
1973 | 36.02 | 40.68 | 41.26 | b | 46.05 | b | ----- | z | ----- | z | ----- | z | 57.22 | b | 58.36 | b | 48.39 | m | 38.90 | t | ----- | z | 46.60 | f | ||
1974 | ----- | z | 38.93 | a | 42.13 | 45.23 | 46.80 | a | 56.85 | f | 56.75 | m | 60.62 | g | 62.22 | a | 51.10 | e | 43.53 | 40.39 | 46.29 | d | ||||
1975 | 36.70 | a | 38.41 | 41.39 | 44.52 | 53.23 | 56.80 | b | 62.00 | a | 58.65 | a | 61.16 | a | 50.25 | k | 42.71 | d | 41.26 | f | 49.56 | b | ||||
1976 | 40.69 | d | 39.34 | 39.02 | b | 47.82 | 52.55 | b | 55.02 | a | 60.08 | a | 59.69 | 60.27 | 53.43 | d | 46.10 | a | 43.84 | f | 50.36 | a | ||||
1977 | 38.19 | r | 44.94 | k | 41.79 | c | 48.31 | a | 49.34 | 56.95 | b | 58.31 | b | 65.73 | a | 54.98 | 49.98 | a | 40.70 | g | 39.18 | 51.62 | c | |||
1978 | 40.62 | a | 42.11 | a | 45.45 | 46.57 | 50.06 | 60.15 | 63.52 | b | ----- | z | 55.47 | 52.75 | a | 38.85 | c | 34.57 | b | 48.19 | a | |||||
1979 | 33.65 | 36.54 | 44.26 | 44.97 | 52.38 | a | 54.91 | b | 60.62 | a | 60.23 | 59.60 | 53.15 | 42.30 | 41.52 | 48.68 | ||||||||||
1980 | 33.34 | 41.09 | b | ----- | z | 48.32 | ----- | z | ----- | z | ----- | z | ----- | z | 56.63 | 51.65 | 41.52 | f | 40.65 | 45.28 | f | |||||
1981 | 42.16 | 42.32 | 46.18 | 46.74 | a | 53.89 | l | ----- | z | 60.95 | b | 64.73 | 57.42 | 50.13 | 44.40 | ----- | z | 50.56 | c | |||||||
1982 | 36.97 | b | 40.89 | a | 42.09 | b | 43.71 | a | 50.85 | 60.20 | b | 59.45 | a | 60.15 | a | 58.68 | 50.11 | 39.86 | b | 38.65 | 48.47 | |||||
1983 | 42.40 | a | 43.48 | 46.35 | 48.28 | 56.16 | 55.93 | 59.45 | 61.00 | 55.30 | 47.62 | b | 44.57 | ----- | z | 50.96 | a | |||||||||
1984 | 41.62 | a | 43.71 | 45.52 | 45.65 | 49.02 | g | 54.20 | 60.53 | 59.87 | a | 56.30 | e | 47.81 | 41.90 | a | 35.44 | d | 48.41 | a | ||||||
1985 | 38.25 | a | 38.62 | 41.57 | c | 46.93 | 52.47 | 56.48 | 64.69 | 62.53 | a | 56.03 | 48.11 | d | 34.87 | d | 39.07 | q | 49.14 | a | ||||||
1986 | 42.80 | h | 39.70 | 46.81 | 44.74 | a | 52.64 | b | 61.25 | 59.23 | a | 67.03 | 57.53 | 55.67 | k | 43.25 | 40.19 | b | 51.24 | b | ||||||
1987 | 38.60 | f | 42.96 | 44.65 | 47.89 | b | 52.80 | a | 57.18 | b | 59.27 | 62.90 | a | 61.50 | a | 54.39 | 47.35 | q | 36.90 | 52.04 | b | |||||
1988 | 37.32 | 42.62 | a | 42.82 | 47.88 | a | 51.68 | a | 54.68 | 59.97 | 61.00 | a | 58.53 | a | 51.78 | d | 41.12 | 38.68 | 49.01 | |||||||
1989 | 36.56 | 35.32 | f | 38.34 | 49.19 | a | 53.76 | b | 60.22 | a | 58.58 | 60.47 | 62.22 | a | 49.96 | e | 43.83 | a | 43.29 | q | 51.31 | b | ||||
1990 | 40.00 | b | 37.57 | 44.80 | a | 49.38 | 52.45 | a | 55.22 | 64.21 | 63.61 | 61.67 | 48.60 | a | 44.22 | 36.25 | i | 51.07 | a | |||||||
1991 | 38.77 | a | 46.89 | 42.39 | 47.45 | 51.66 | 55.37 | 61.55 | a | 61.87 | 61.64 | b | 52.30 | c | 44.19 | f | 41.84 | b | 51.07 | a | ||||||
1992 | 43.78 | h | 44.57 | a | 49.52 | b | 50.60 | j | 56.35 | 61.59 | c | 63.45 | c | 64.95 | 56.73 | 52.13 | 42.15 | 34.66 | 52.61 | b | ||||||
1993 | 34.23 | e | 39.45 | 44.71 | 46.88 | a | 56.74 | b | 57.23 | 58.87 | 63.56 | 60.42 | 55.18 | a | 40.28 | 39.40 | 49.75 | |||||||||
1994 | 43.42 | 38.62 | 46.00 | 49.94 | c | 54.06 | 55.15 | 61.68 | a | 60.82 | 60.64 | a | 49.86 | b | 41.45 | a | 42.04 | c | 50.31 | |||||||
1995 | 44.34 | 44.59 | 45.18 | 48.16 | b | 56.37 | 58.57 | 63.48 | 59.02 | a | 62.93 | c | 51.02 | 46.76 | k | 39.90 | p | 53.36 | b | |||||||
1996 | 39.12 | k | 43.31 | e | 45.33 | g | 50.33 | f | 48.50 | c | 54.46 | f | 63.08 | m | 65.47 | o | 55.75 | 49.16 | b | 42.89 | c | 35.61 | m | 47.92 | g | |
1997 | 38.11 | d | 41.45 | 41.47 | 45.77 | 53.66 | b | 55.66 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.02 | f | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.07 | 40.65 | 42.82 | 46.24 | 52.04 | 56.85 | 61.16 | 61.20 | 58.50 | 50.78 | 42.57 | 38.45 | 48.78 | |||||||||||||
S.D. | 3.65 | 2.82 | 2.96 | 2.12 | 2.79 | 2.58 | 2.39 | 2.56 | 2.62 | 2.05 | 2.56 | 2.73 | 0.82 | |||||||||||||
SKEW | -0.68 | 0.18 | 0.09 | -0.27 | 0.08 | 0.72 | 0.42 | 0.50 | 0.19 | 0.18 | -0.35 | -0.41 | 0.63 | |||||||||||||
MAX | 44.34 | 46.89 | 49.68 | 50.98 | 57.54 | 63.00 | 67.37 | 67.03 | 64.42 | 55.18 | 48.62 | 42.08 | 50.31 | |||||||||||||
MIN | 28.41 | 35.84 | 35.60 | 40.75 | 46.63 | 52.10 | 56.74 | 57.21 | 54.16 | 47.08 | 34.87 | 33.38 | 47.70 | |||||||||||||
YRS | 35 | 42 | 42 | 42 | 42 | 41 | 50 | 49 | 47 | 41 | 35 | 30 | 9 |