YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.29 | f | 43.16 | 43.16 | k | |
1922 | 35.26 | 38.54 | 41.65 | 45.84 | e | 49.35 | 60.50 | b | 60.65 | 63.16 | 59.67 | 49.92 | f | 41.47 | 42.13 | a | 48.93 | a | ||||||||
1923 | 39.10 | 38.39 | 39.87 | a | 45.17 | 50.48 | 49.40 | 58.13 | 57.84 | 50.13 | o | 44.15 | e | 46.34 | a | 38.71 | 46.14 | a | ||||||||
1924 | 35.97 | b | 43.19 | b | 41.59 | n | 44.43 | 49.87 | 54.27 | 57.77 | 57.87 | 57.66 | a | 44.41 | b | 41.33 | 38.16 | 47.72 | a | |||||||
1925 | 33.81 | 36.04 | 35.65 | 40.03 | 46.03 | 54.10 | 58.00 | 55.97 | 50.80 | 43.65 | 35.50 | 39.03 | 44.05 | |||||||||||||
1926 | 39.16 | 42.00 | 45.90 | 49.07 | 49.97 | 54.07 | 58.39 | 58.58 | 52.20 | 48.94 | 41.27 | 37.45 | 48.08 | |||||||||||||
1927 | 37.84 | 39.79 | 40.68 | 46.43 | 47.84 | 50.07 | 58.40 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.77 | f | ||||||
1928 | ----- | z | 38.34 | 43.50 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.92 | j | |
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 | 39.77 | 42.73 | ----- | z | ----- | z | 58.58 | 58.65 | 50.73 | 51.52 | 47.37 | 39.35 | 48.59 | d | ||||||||
1934 | 41.42 | 42.18 | 47.39 | 47.57 | 50.55 | 51.93 | a | 58.61 | 58.26 | 55.83 | 49.29 | 44.20 | 41.29 | 49.04 | ||||||||||||
1935 | 37.26 | 40.04 | 36.13 | 42.87 | 47.52 | 51.37 | 56.68 | 59.23 | 54.07 | 46.45 | 40.79 | a | 38.00 | 45.87 | ||||||||||||
1936 | 39.32 | 37.45 | 40.45 | 42.37 | 47.48 | 55.42 | d | 59.14 | b | 58.23 | 53.80 | 48.16 | 45.30 | 36.74 | 46.99 | |||||||||||
1937 | 27.23 | a | 34.96 | 36.97 | 39.70 | 47.32 | 52.47 | 55.77 | 56.10 | 54.90 | 48.52 | 40.33 | 40.84 | 44.59 | ||||||||||||
1938 | 39.48 | 36.93 | 37.43 | a | 42.80 | 45.16 | 49.97 | 55.39 | 57.35 | 55.43 | 47.32 | 41.70 | 40.84 | 45.82 | ||||||||||||
1939 | 36.00 | 32.04 | 37.97 | 43.10 | 44.84 | 47.80 | 54.84 | 57.03 | 55.33 | 47.97 | 42.93 | 39.84 | 44.97 | |||||||||||||
1940 | 39.48 | 38.66 | 42.29 | 45.40 | 49.19 | 48.93 | 53.52 | 55.10 | 49.17 | 47.39 | 39.90 | 42.73 | a | 45.98 | ||||||||||||
1941 | 41.00 | 43.00 | 42.84 | 43.53 | 48.10 | 50.10 | ----- | z | 52.39 | 48.10 | 45.71 | 44.03 | 38.94 | 45.25 | a | |||||||||||
1942 | 38.00 | 36.11 | 40.29 | 45.57 | 40.45 | 53.77 | 59.87 | 59.32 | 53.80 | 51.30 | a | 45.83 | 42.00 | 47.19 | ||||||||||||
1943 | 40.90 | 42.89 | 45.03 | 47.17 | 51.13 | 50.07 | 57.06 | 56.61 | 56.27 | 51.39 | 45.57 | 41.84 | 48.83 | |||||||||||||
1944 | 39.42 | 38.07 | 43.03 | 43.23 | 47.39 | 50.48 | a | 53.23 | 57.42 | 55.70 | 49.00 | 43.93 | 41.84 | 46.90 | ||||||||||||
1945 | 38.58 | 41.64 | 39.06 | 42.57 | 48.94 | 52.40 | 59.48 | 61.00 | 59.63 | 53.32 | 44.37 | 39.13 | 48.34 | |||||||||||||
1946 | 38.61 | 34.43 | 41.03 | a | ----- | z | 49.42 | 54.60 | 60.29 | 57.68 | 55.80 | 44.71 | 42.33 | 40.65 | 47.23 | a | ||||||||||
1947 | 35.65 | 40.64 | 44.23 | a | 48.60 | 52.90 | 55.14 | a | 57.77 | 55.77 | 56.60 | 48.97 | 40.93 | 39.48 | 48.06 | |||||||||||
1948 | 39.45 | 36.10 | 37.87 | ----- | z | 47.35 | 52.53 | 54.06 | 54.19 | 55.90 | a | 50.00 | 44.83 | a | 36.32 | 46.24 | a | |||||||||
1949 | 31.83 | b | 34.54 | 39.13 | 46.97 | 49.39 | 55.07 | 56.71 | 56.61 | 54.80 | 47.42 | 46.50 | 36.52 | 46.29 | ||||||||||||
1950 | 31.61 | 37.70 | a | 39.61 | 45.30 | 45.29 | 50.20 | 59.84 | 56.74 | 54.43 | 50.84 | 48.13 | 46.19 | 47.16 | ||||||||||||
1951 | 38.52 | 38.00 | 41.13 | 46.03 | 48.71 | 51.53 | 59.84 | 57.58 | 56.60 | 52.45 | i | 44.10 | a | 38.90 | 47.36 | a | ||||||||||
1952 | 36.77 | 39.96 | b | 39.94 | 45.47 | 50.39 | 50.27 | 58.71 | 59.55 | 58.57 | 50.55 | 43.00 | 38.27 | i | 48.47 | a | ||||||||||
1953 | 43.81 | 39.46 | 39.45 | 42.70 | 45.94 | 51.53 | 60.74 | 55.90 | 55.40 | 49.42 | 46.67 | 42.10 | 47.76 | |||||||||||||
1954 | 38.35 | 44.71 | 40.90 | a | 46.97 | 49.06 | 53.07 | 62.87 | 56.03 | 54.13 | 49.13 | 47.70 | 41.32 | 48.69 | ||||||||||||
1955 | 35.87 | a | 37.74 | a | 40.38 | b | 42.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.12 | h | |
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 | 44.85 | d | 50.90 | 54.81 | 58.32 | 54.70 | 48.81 | 43.77 | 40.97 | 49.64 | d | |||||||
1963 | 37.35 | 44.89 | 38.48 | 41.23 | 49.13 | 53.07 | 56.03 | 57.61 | 59.23 | 51.87 | 45.27 | 40.97 | 47.93 | |||||||||||||
1964 | 35.71 | 36.97 | 36.61 | 42.70 | 45.61 | 51.43 | 59.23 | 59.19 | 52.97 | 53.90 | 42.63 | 41.06 | 46.50 | |||||||||||||
1965 | 38.87 | 39.11 | 41.26 | 44.43 | 48.10 | 49.80 | 56.35 | 61.00 | 52.17 | 51.58 | 46.53 | 38.52 | 47.31 | |||||||||||||
1966 | 34.93 | a | 34.04 | 40.42 | 44.67 | 47.97 | 51.03 | 53.39 | 56.68 | 50.23 | 47.16 | 41.23 | 37.65 | 44.95 | ||||||||||||
1967 | 37.42 | 36.39 | 38.63 | a | 36.40 | 46.30 | a | 46.97 | 57.35 | 59.84 | 55.72 | e | 47.55 | 42.93 | 34.35 | 44.99 | ||||||||||
1968 | 35.16 | 42.28 | 36.81 | 40.13 | 46.00 | 51.03 | 56.06 | 51.26 | 50.73 | 44.52 | 39.47 | 29.86 | c | 43.61 | ||||||||||||
1969 | 37.71 | 34.04 | 35.61 | 40.73 | 45.90 | 50.27 | 54.68 | 54.26 | 50.30 | 42.23 | 41.57 | 32.61 | 43.33 | |||||||||||||
1970 | 35.45 | 37.59 | a | 36.58 | 35.97 | 44.42 | 48.47 | 58.84 | 58.68 | 49.77 | 45.48 | 41.59 | a | 35.42 | 44.02 | |||||||||||
1971 | 35.48 | 35.15 | a | 37.71 | 38.66 | a | 44.48 | 49.67 | 55.77 | 58.57 | a | 52.63 | 40.90 | b | 36.67 | 32.63 | a | 43.19 | ||||||||
1972 | 32.37 | a | 36.07 | a | 41.06 | 39.93 | ----- | z | 52.73 | 56.30 | a | 57.39 | c | 51.83 | 45.68 | f | 37.90 | 32.23 | a | 43.78 | b | |||||
1973 | 32.32 | 39.61 | 35.03 | 40.83 | a | 45.84 | 51.90 | 51.84 | 54.30 | a | 48.24 | a | 43.42 | 35.57 | 35.97 | b | 42.90 | |||||||||
1974 | 34.65 | 32.35 | b | 39.06 | 38.40 | 46.13 | 49.44 | c | 55.48 | 51.74 | 51.57 | 45.03 | 37.90 | a | 34.06 | 42.98 | ||||||||||
1975 | 34.52 | 34.18 | 37.43 | a | 36.73 | 42.61 | 47.66 | a | 52.52 | 49.55 | 52.63 | 42.68 | 37.53 | 36.61 | 42.05 | |||||||||||
1976 | 34.10 | 36.07 | 36.29 | 38.30 | 47.57 | a | 51.10 | ----- | z | ----- | z | 56.20 | 46.35 | 42.30 | 33.97 | a | 42.22 | b | ||||||||
1977 | 35.60 | a | 36.61 | 32.29 | 39.30 | 43.39 | 50.70 | 53.53 | a | 57.03 | 49.63 | 45.97 | 40.57 | 41.06 | 43.81 | |||||||||||
1978 | 39.39 | 38.86 | 44.42 | 42.13 | 45.13 | 50.33 | 53.29 | 53.45 | 49.87 | ----- | z | ----- | z | 31.03 | 44.79 | b | ||||||||||
1979 | 32.74 | 33.50 | 38.58 | ----- | z | ----- | z | 50.21 | a | 55.03 | ----- | z | ----- | z | ----- | z | 35.97 | ----- | z | 41.00 | f | |||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.73 | 54.26 | 53.65 | 47.40 | ----- | z | ----- | z | 34.43 | a | 47.29 | g | ||||
1981 | 34.39 | ----- | z | 35.65 | 40.63 | 45.16 | 53.23 | 51.97 | 54.40 | a | 48.67 | 41.47 | a | 37.37 | ----- | z | 44.29 | b | ||||||||
1982 | 32.10 | a | 37.50 | 35.00 | a | 39.50 | b | 45.13 | 47.10 | 51.48 | 52.97 | 53.43 | 42.03 | a | 35.69 | a | 32.43 | a | 42.03 | |||||||
1983 | 35.68 | 36.50 | 39.57 | a | 39.07 | 44.06 | 50.10 | 49.30 | a | 56.73 | a | 54.73 | 48.20 | a | 38.50 | 35.30 | d | 43.98 | ||||||||
1984 | 36.87 | a | 33.48 | 38.65 | 39.60 | 47.43 | a | 50.75 | b | 59.71 | 57.71 | 57.72 | a | 43.07 | a | 35.73 | ----- | z | 45.52 | a | ||||||
1985 | 34.29 | 33.42 | b | 34.06 | 40.67 | 44.28 | b | 49.30 | 57.83 | a | 50.35 | 48.50 | 43.79 | b | 38.20 | 35.96 | c | 42.56 | ||||||||
1986 | 37.71 | 38.78 | a | 41.13 | a | 41.23 | 43.35 | 49.60 | 50.79 | c | 54.10 | a | 46.18 | b | 42.64 | c | 41.03 | 34.10 | 43.39 | |||||||
1987 | 31.38 | b | 36.11 | a | 35.23 | a | ----- | z | 48.19 | 49.80 | 49.00 | 51.27 | a | 51.07 | ----- | z | 40.48 | a | 30.77 | a | 42.33 | b | ||||
1988 | 34.37 | a | 36.89 | b | 37.19 | 41.10 | a | 43.72 | b | 47.10 | a | 54.65 | 53.10 | a | 49.00 | a | 43.90 | a | 36.76 | a | ----- | z | 43.43 | a | ||
1989 | ----- | z | 34.74 | a | 38.20 | a | 43.87 | 44.45 | 49.31 | a | 53.26 | ----- | z | 48.23 | 44.14 | b | 39.34 | a | 32.80 | a | 42.83 | b | ||||
1990 | 34.34 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.34 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.38 | 37.75 | 39.28 | 42.56 | 46.91 | 51.11 | 56.20 | 56.41 | 53.18 | 47.00 | 41.68 | 37.81 | 45.55 | |||||||||||||
S.D. | 3.04 | 3.13 | 3.09 | 3.20 | 2.50 | 2.51 | 3.10 | 2.86 | 3.42 | 3.33 | 3.53 | 3.76 | 2.14 | |||||||||||||
SKEW | -0.29 | 0.39 | 0.33 | 0.00 | -0.03 | 0.93 | -0.28 | -0.37 | -0.05 | 0.08 | -0.10 | -0.24 | 0.00 | |||||||||||||
MAX | 43.81 | 44.89 | 47.39 | 49.07 | 52.90 | 60.50 | 62.87 | 63.16 | 59.67 | 53.90 | 48.13 | 46.19 | 49.04 | |||||||||||||
MIN | 27.23 | 32.04 | 32.29 | 35.97 | 40.45 | 46.73 | 49.00 | 49.55 | 46.18 | 40.90 | 35.50 | 29.86 | 42.03 | |||||||||||||
YRS | 54 | 54 | 55 | 51 | 52 | 55 | 53 | 52 | 53 | 48 | 53 | 51 | 35 |