YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.05 | i | 39.26 | 37.28 | a | 33.03 | 36.52 | i | ||
1938 | 31.10 | 31.00 | 32.97 | 38.17 | 39.94 | 47.13 | 54.03 | 45.26 | 44.97 | 37.20 | a | 28.79 | a | 31.26 | 38.48 | |||||||||||
1939 | 29.23 | 27.61 | 31.45 | 35.90 | 40.94 | 43.93 | 50.94 | 49.97 | 43.23 | 36.45 | 27.63 | 32.97 | 37.52 | |||||||||||||
1940 | 30.45 | 34.72 | 36.23 | 38.10 | 42.00 | 48.33 | 49.87 | 48.42 | 46.38 | a | 40.00 | 32.67 | 33.52 | 40.06 | ||||||||||||
1941 | 30.87 | 33.93 | 31.97 | 35.50 | 44.06 | 48.37 | 52.65 | 51.10 | 41.50 | 36.26 | 34.37 | 31.94 | 39.38 | |||||||||||||
1942 | 29.32 | 27.43 | 28.39 | 32.93 | 41.03 | 43.70 | 50.97 | 50.32 | 41.90 | 35.39 | 33.57 | 33.03 | 37.33 | |||||||||||||
1943 | 26.84 | 28.50 | 30.39 | 37.97 | 37.39 | 44.50 | 48.45 | 47.58 | 45.43 | 37.81 | 30.30 | 28.48 | 36.97 | |||||||||||||
1944 | 25.97 | 28.34 | 27.87 | 34.90 | 38.48 | 45.87 | 48.90 | 47.55 | 43.60 | 39.03 | a | 30.27 | 29.48 | 36.69 | ||||||||||||
1945 | 29.39 | 30.29 | 30.65 | 33.63 | 43.42 | 43.57 | 50.48 | 49.42 | 39.57 | 37.23 | 34.27 | 30.13 | 37.67 | |||||||||||||
1946 | 27.29 | 28.71 | 31.65 | 35.17 | 40.42 | 44.33 | 50.29 | 48.26 | 39.20 | 32.77 | 30.17 | 29.58 | 36.49 | |||||||||||||
1947 | 24.10 | 30.96 | 33.29 | 35.53 | 41.26 | 45.07 | 49.84 | 45.87 | 40.80 | 41.77 | 34.07 | 29.37 | a | 37.66 | ||||||||||||
1948 | 24.77 | a | 25.52 | 30.68 | 33.67 | 39.48 | 48.17 | 47.48 | 47.03 | 40.57 | 36.06 | 29.50 | 26.29 | 35.77 | ||||||||||||
1949 | 14.26 | 26.82 | 35.39 | 35.50 | 42.84 | 43.17 | 47.39 | 46.68 | 44.50 | 32.13 | 31.07 | 27.58 | 35.61 | |||||||||||||
1950 | 24.90 | 27.18 | 31.00 | 33.73 | 37.10 | 45.67 | 47.71 | 48.84 | 44.21 | a | 41.42 | 37.73 | 37.81 | 38.11 | ||||||||||||
1951 | 30.74 | 31.71 | 28.74 | 35.73 | 39.13 | 43.03 | 49.45 | 47.26 | 42.53 | 36.20 | a | 33.80 | 28.39 | 37.23 | ||||||||||||
1952 | 26.74 | 28.97 | 30.90 | 34.40 | 39.32 | 45.17 | 49.84 | 48.13 | 44.17 | 36.48 | 24.43 | 32.32 | 36.74 | |||||||||||||
1953 | 34.32 | 30.79 | 31.73 | a | 35.23 | 38.90 | 43.30 | 46.03 | 49.48 | 45.13 | 35.13 | 40.07 | 32.13 | 38.52 | ||||||||||||
1954 | 31.48 | 30.61 | 30.29 | 35.87 | 40.16 | 43.67 | 46.74 | 47.71 | 40.33 | 34.10 | 32.00 | 29.58 | 36.88 | |||||||||||||
1955 | 28.32 | 26.75 | 29.97 | 34.60 | 39.61 | 46.53 | 48.81 | 46.45 | 41.30 | 38.74 | 34.17 | a | 33.84 | 37.42 | ||||||||||||
1956 | 33.87 | 27.83 | 30.19 | 37.80 | 42.32 | 43.53 | 50.32 | 46.65 | 40.27 | 36.42 | 30.34 | a | 27.42 | 37.25 | ||||||||||||
1957 | 25.23 | 32.46 | 38.35 | 37.41 | a | 43.00 | 47.21 | a | 46.81 | 44.00 | 43.50 | 39.58 | 29.43 | 32.71 | 38.31 | |||||||||||
1958 | 31.84 | 38.79 | 31.48 | 36.93 | 43.13 | 50.40 | 52.84 | 52.13 | 41.97 | 36.61 | 38.23 | 35.42 | 40.81 | |||||||||||||
1959 | 34.61 | 31.79 | 31.97 | 36.00 | 38.74 | 46.10 | 49.48 | 45.65 | 43.50 | 37.48 | 26.07 | 25.23 | 37.22 | |||||||||||||
1960 | 32.45 | 31.79 | 35.84 | 37.40 | 40.39 | 43.77 | 50.61 | 48.16 | 42.87 | 36.32 | 34.70 | 29.68 | 38.66 | |||||||||||||
1961 | 30.35 | 36.43 | 36.74 | 35.30 | 41.03 | 49.17 | 49.42 | 53.00 | 41.50 | 38.26 | 31.53 | 31.00 | 39.48 | |||||||||||||
1962 | 25.06 | 30.71 | 32.58 | 36.77 | 40.94 | 42.50 | 46.45 | 49.19 | 43.97 | 39.03 | 36.17 | 32.06 | 37.95 | |||||||||||||
1963 | 21.19 | 37.75 | 33.97 | 37.00 | 43.35 | 46.17 | 47.58 | 49.77 | 48.97 | 40.52 | 36.03 | 30.06 | 39.36 | |||||||||||||
1964 | 30.74 | 25.48 | 31.74 | 32.93 | 38.55 | 46.80 | 51.55 | 48.26 | 39.60 | 38.03 | 33.17 | 34.71 | 37.63 | |||||||||||||
1965 | 32.39 | 29.07 | 31.03 | 39.33 | 37.81 | 44.67 | 49.06 | 51.10 | 38.97 | 38.00 | 37.10 | 27.45 | 38.00 | |||||||||||||
1966 | 30.94 | 29.96 | 33.06 | 34.73 | 40.68 | 46.13 | 47.90 | 48.61 | 45.83 | 35.58 | 37.33 | 33.97 | 38.73 | |||||||||||||
1967 | 32.87 | 30.36 | 32.61 | 34.27 | 40.26 | 47.67 | 51.58 | 52.48 | 46.37 | 38.26 | 34.23 | 28.52 | 39.12 | |||||||||||||
1968 | 29.00 | 35.00 | 34.77 | 33.80 | 40.52 | 47.53 | 51.48 | 52.35 | 44.57 | 36.77 | 37.63 | 32.26 | 39.64 | |||||||||||||
1969 | 29.16 | 32.61 | 31.32 | 35.87 | 42.84 | 52.53 | 49.74 | 46.65 | 45.97 | 36.06 | 29.97 | 33.10 | 38.82 | |||||||||||||
1970 | 36.90 | 30.79 | 33.97 | 33.07 | 39.71 | 50.73 | 51.71 | 47.81 | 40.90 | 34.74 | 39.43 | 31.52 | 39.27 | |||||||||||||
1971 | 27.90 | 30.46 | 33.68 | 35.00 | 42.39 | 46.53 | 51.29 | 51.81 | 43.13 | 36.32 | 31.90 | 29.32 | 38.31 | |||||||||||||
1972 | 28.32 | 32.76 | 37.23 | a | 35.57 | 41.55 | 47.30 | 51.19 | 50.84 | 42.17 | 35.19 | 35.17 | 25.23 | 38.54 | ||||||||||||
1973 | 31.71 | 33.71 | 33.10 | 34.17 | 43.74 | 47.07 | 50.65 | 48.35 | 44.23 | 36.10 | 38.80 | 36.26 | 39.82 | |||||||||||||
1974 | 28.42 | 29.61 | 35.74 | 36.37 | 40.29 | 48.67 | 50.71 | 51.00 | 43.30 | 32.68 | 35.43 | 33.74 | 38.83 | |||||||||||||
1975 | 31.00 | 32.54 | 34.26 | 33.30 | 40.65 | 45.87 | 52.61 | 48.35 | 44.10 | 40.23 | 33.17 | 34.26 | 39.19 | |||||||||||||
1976 | 30.32 | 29.14 | 30.87 | 35.87 | 40.52 | 43.87 | 52.03 | 52.06 | 46.87 | 35.48 | 34.20 | 24.84 | 38.01 | |||||||||||||
1977 | 24.94 | 30.46 | 32.58 | 36.73 | 40.71 | 51.27 | 50.16 | 55.81 | 47.23 | 39.55 | 34.13 | 36.52 | 40.01 | |||||||||||||
1978 | 35.58 | 34.11 | 38.55 | 37.33 | 40.45 | 49.30 | 52.65 | 52.48 | 45.63 | 36.48 | 27.50 | 26.58 | 39.72 | |||||||||||||
1979 | 26.32 | 34.07 | 37.10 | 40.17 | 42.00 | 46.50 | 51.10 | 51.61 | 46.73 | 44.90 | 33.70 | 33.23 | 40.62 | |||||||||||||
1980 | 29.45 | 36.45 | 33.26 | 37.80 | 40.58 | 46.57 | 52.00 | 47.06 | 44.30 | 37.58 | 34.47 | 31.48 | 39.25 | |||||||||||||
1981 | 35.48 | 32.04 | 34.32 | 39.37 | 43.48 | 47.93 | 49.71 | 51.97 | 45.90 | 37.71 | 36.87 | 37.32 | 41.01 | |||||||||||||
1982 | 29.10 | 31.18 | 33.13 | 35.33 | 38.81 | 50.63 | 51.81 | 50.61 | 44.87 | 40.10 | 31.83 | 31.61 | 39.08 | |||||||||||||
1983 | 32.30 | a | 36.86 | 40.06 | 35.10 | 43.23 | 47.90 | 47.19 | e | 54.77 | 45.33 | 40.23 | 38.77 | 35.43 | a | 41.43 | ||||||||||
1984 | 29.74 | 33.38 | 36.74 | 38.47 | 42.00 | 45.50 | 52.16 | 51.74 | 44.13 | 40.42 | 37.37 | 30.39 | 40.17 | |||||||||||||
1985 | 25.95 | k | 31.40 | c | 31.29 | 38.40 | 41.45 | 48.37 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.13 | a | 36.17 | f | ||||
1986 | 36.65 | 38.18 | 38.23 | 37.40 | 43.19 | 52.13 | 50.42 | 53.94 | 45.13 | 37.26 | 34.70 | c | 30.30 | a | 41.46 | |||||||||||
1987 | 27.07 | a | 31.63 | a | 35.07 | d | 38.17 | 43.93 | a | 49.27 | 51.23 | 49.16 | 42.80 | 37.00 | a | 34.21 | b | 31.77 | 39.28 | |||||||
1988 | 30.94 | 28.25 | a | 30.63 | a | 38.13 | 40.81 | 47.77 | 51.07 | c | 48.39 | 41.77 | 38.90 | 36.32 | b | 28.93 | c | 38.49 | ||||||||
1989 | 28.37 | a | 25.43 | 36.13 | a | 40.24 | a | 42.57 | a | 46.80 | 50.03 | 50.13 | 43.27 | 37.16 | 29.17 | 25.35 | 37.89 | |||||||||
1990 | 30.10 | 28.29 | 34.10 | 39.90 | 40.19 | 46.77 | 52.96 | c | ----- | z | ----- | z | 34.94 | 32.24 | a | 21.84 | 36.13 | b | ||||||||
1991 | 23.58 | 33.89 | 33.23 | 35.63 | 41.06 | 45.28 | a | 53.10 | 51.94 | 45.53 | 37.35 | 36.37 | 32.10 | a | 39.09 | |||||||||||
1992 | 29.94 | 34.55 | 35.52 | 41.70 | 43.90 | a | 50.57 | 53.29 | 49.74 | 42.17 | a | 37.42 | 34.03 | a | 31.03 | 40.32 | ||||||||||
1993 | 29.97 | a | 30.61 | 39.39 | 38.41 | a | 45.39 | 46.83 | a | 46.71 | 49.30 | a | 42.73 | 39.58 | 25.00 | a | 27.80 | a | 38.48 | |||||||
1994 | 31.31 | b | 30.71 | 32.45 | 38.23 | 44.16 | 45.63 | 51.52 | 49.06 | 45.17 | 34.32 | 29.16 | e | 29.60 | f | 39.25 | a | |||||||||
1995 | 35.26 | 33.11 | 33.84 | f | 37.67 | i | 44.09 | h | 46.77 | d | 53.32 | f | 46.24 | j | 47.05 | k | 34.22 | m | 36.27 | o | 37.07 | q | 38.38 | i | ||
1996 | 31.80 | u | 33.58 | j | 32.88 | o | 36.85 | j | 40.48 | j | 43.43 | p | 53.74 | l | 49.70 | k | 41.00 | j | 35.71 | j | 33.75 | r | 31.47 | l | ----- | z |
1997 | 28.63 | l | 29.95 | i | 34.25 | k | 38.53 | o | 43.70 | k | 48.65 | m | 52.56 | o | 53.53 | n | 46.25 | j | 37.32 | l | 34.85 | q | 30.06 | n | ----- | z |
1998 | 33.89 | m | 33.29 | k | 33.65 | n | 38.00 | j | 43.35 | n | 48.79 | k | 55.79 | l | 51.61 | m | 45.57 | i | 34.50 | k | 35.19 | n | 26.00 | q | ----- | z |
1999 | 26.67 | p | 29.82 | k | 32.11 | m | 33.42 | k | 39.89 | m | 45.05 | j | 49.15 | r | 51.88 | n | 40.18 | m | 32.86 | q | 34.50 | n | 30.19 | o | ----- | z |
2000 | 28.20 | p | 34.19 | m | 32.87 | p | 37.38 | n | 41.39 | m | 47.06 | n | 50.41 | n | 49.80 | p | 45.50 | p | 34.75 | k | 29.78 | l | 28.85 | r | ----- | z |
2001 | 26.90 | j | 28.61 | j | 33.70 | k | 34.28 | l | 41.00 | l | 45.30 | j | 50.38 | o | 51.20 | k | 44.63 | k | 35.05 | k | 34.00 | o | 33.00 | o | ----- | z |
2002 | 28.56 | m | 30.26 | i | 29.72 | m | 36.21 | k | 36.67 | m | 45.88 | n | 52.74 | l | 47.05 | k | 42.83 | l | 31.68 | l | 31.33 | l | 32.31 | r | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.48 | 31.27 | 33.33 | 36.35 | 41.15 | 46.72 | 50.21 | 49.48 | 43.54 | 37.40 | 33.37 | 30.83 | 38.59 | |||||||||||||
S.D. | 3.95 | 3.20 | 2.82 | 2.05 | 1.88 | 2.41 | 1.97 | 2.48 | 2.25 | 2.36 | 3.66 | 3.39 | 1.36 | |||||||||||||
SKEW | -0.92 | 0.32 | 0.44 | 0.35 | 0.01 | 0.40 | -0.36 | 0.26 | -0.11 | 0.35 | -0.41 | -0.23 | 0.05 | |||||||||||||
MAX | 36.90 | 38.79 | 40.06 | 41.70 | 45.39 | 52.53 | 54.03 | 55.81 | 48.97 | 44.90 | 40.07 | 37.81 | 41.46 | |||||||||||||
MIN | 14.26 | 25.43 | 27.87 | 32.93 | 37.10 | 42.50 | 46.03 | 44.00 | 38.97 | 32.13 | 24.43 | 21.84 | 35.61 | |||||||||||||
YRS | 57 | 58 | 57 | 57 | 57 | 58 | 56 | 55 | 55 | 57 | 57 | 57 | 54 |