| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.61 | 60.69 | 51.17 | 49.27 | 38.29 | a | 33.87 | 49.49 | ||||||
| 1934 | 33.37 | 34.50 | 42.55 | 46.16 | a | 50.19 | 51.97 | 62.65 | 63.35 | 51.84 | a | 46.32 | 36.92 | 28.48 | 45.69 | |||||||||||
| 1935 | 26.95 | 29.46 | 26.77 | 36.65 | 44.24 | 53.57 | 60.44 | 60.92 | 56.98 | 40.58 | 29.92 | 29.90 | 41.37 | |||||||||||||
| 1936 | 26.94 | 25.66 | 31.85 | 42.42 | 48.53 | 55.85 | d | 65.03 | 62.29 | 52.97 | 45.55 | 36.03 | 25.90 | 43.25 | ||||||||||||
| 1937 | 7.11 | 21.18 | 29.62 | a | 33.48 | 47.89 | 50.02 | f | ----- | z | 52.33 | z | 55.13 | 46.44 | 34.31 | a | 31.23 | a | 34.04 | |||||||
| 1938 | ----- | z | 23.20 | 23.73 | 36.17 | 43.90 | 52.25 | 60.39 | 59.15 | 55.53 | 41.57 | a | 28.42 | 28.97 | 41.21 | |||||||||||
| 1939 | 25.03 | 18.89 | 32.00 | 42.62 | 46.90 | 48.93 | 62.73 | 63.81 | 54.62 | 43.85 | 40.13 | 35.13 | 42.89 | |||||||||||||
| 1940 | 28.95 | 28.62 | 34.13 | 40.36 | a | 50.27 | 59.40 | 61.68 | 64.71 | 50.07 | 41.47 | 29.62 | 30.50 | e | 43.31 | |||||||||||
| 1941 | 27.69 | 29.48 | 34.84 | 36.52 | 46.48 | g | 49.43 | 61.24 | 57.47 | 46.62 | 41.18 | 37.02 | 26.92 | 40.76 | ||||||||||||
| 1942 | 25.02 | 21.09 | 28.77 | 38.83 | 40.59 | b | 49.58 | 61.68 | 61.05 | 53.70 | 45.74 | 33.80 | 29.66 | 40.79 | ||||||||||||
| 1943 | 24.89 | 28.80 | 31.71 | 45.00 | j | 43.50 | g | 47.73 | 59.34 | 58.11 | 59.48 | 44.77 | 37.92 | 28.56 | 42.13 | |||||||||||
| 1944 | 24.94 | 23.53 | 29.98 | 35.37 | 45.13 | 46.93 | 57.58 | 57.58 | 54.00 | 48.19 | 28.50 | 28.89 | 40.05 | |||||||||||||
| 1945 | 29.15 | 26.04 | 27.65 | 35.62 | 44.34 | 49.08 | 61.13 | 60.29 | 50.98 | 48.18 | 34.62 | 25.32 | 41.03 | |||||||||||||
| 1946 | 24.03 | 24.48 | 31.94 | 40.40 | 44.68 | 49.85 | 60.02 | 62.00 | 52.37 | 36.02 | 31.03 | 30.42 | 40.60 | |||||||||||||
| 1947 | 27.26 | 34.42 | b | 36.88 | a | 40.13 | 52.34 | b | 50.20 | 60.56 | 58.83 | a | 55.57 | a | 45.82 | a | 29.10 | 28.31 | 43.29 | |||||||
| 1948 | 30.87 | a | 25.00 | a | 27.84 | 34.87 | 43.60 | 52.12 | 56.89 | 57.82 | 52.62 | 45.50 | 30.67 | a | 19.37 | 39.76 | ||||||||||
| 1949 | 12.10 | 21.80 | f | 28.45 | 42.48 | 47.27 | 52.38 | 60.74 | 59.02 | 55.33 | 40.06 | 44.78 | 26.11 | 42.61 | ||||||||||||
| 1950 | 19.73 | a | 30.39 | 30.65 | 38.73 | 44.11 | ----- | z | 61.43 | a | 61.71 | 53.19 | c | 46.45 | 36.53 | a | 35.23 | a | 41.65 | |||||||
| 1951 | 24.34 | 27.84 | 28.60 | 42.00 | 44.87 | 54.00 | b | 62.06 | 59.48 | 56.43 | 40.42 | a | 31.69 | c | 24.02 | 41.31 | ||||||||||
| 1952 | 21.16 | 24.26 | 23.52 | 41.22 | 47.48 | 50.12 | a | 61.97 | 60.45 | 55.02 | 51.55 | 30.35 | 27.81 | 41.24 | ||||||||||||
| 1953 | 34.21 | 29.38 | 33.23 | 36.35 | 39.13 | 47.35 | 62.34 | 58.68 | 58.46 | b | 45.47 | 37.82 | 29.11 | 42.63 | ||||||||||||
| 1954 | 27.55 | 34.96 | 28.85 | 41.17 | a | 49.77 | 50.30 | 63.05 | 56.39 | 51.62 | 43.81 | 39.20 | 26.08 | a | 42.73 | |||||||||||
| 1955 | 21.21 | 22.30 | 27.71 | 32.13 | 44.35 | 53.65 | 57.47 | 63.77 | a | 53.23 | 46.52 | 32.10 | 27.11 | 40.13 | ||||||||||||
| 1956 | 26.48 | 21.74 | 30.82 | 39.83 | 46.17 | a | 52.28 | 61.44 | 58.39 | 55.87 | 40.82 | 36.52 | 31.87 | a | 41.85 | |||||||||||
| 1957 | 19.60 | 31.39 | 33.21 | 37.55 | 44.68 | 54.82 | 60.34 | 57.85 | 56.92 | 39.39 | 29.85 | 31.18 | 41.40 | |||||||||||||
| 1958 | 29.02 | 32.82 | 26.94 | 36.07 | 52.56 | 53.15 | 60.60 | 64.15 | 53.78 | 49.18 | 34.52 | 36.84 | 44.13 | |||||||||||||
| 1959 | 30.50 | 26.43 | 33.87 | 41.48 | 43.87 | 57.10 | 66.13 | 60.47 | 50.73 | 45.84 | 38.13 | 30.06 | 43.72 | |||||||||||||
| 1960 | 22.92 | 23.36 | 35.32 | 38.95 | 43.74 | 57.42 | 65.55 | 59.58 | 56.90 | 44.05 | 30.93 | 29.21 | 42.33 | |||||||||||||
| 1961 | 32.66 | 30.84 | 31.55 | 37.73 | 44.16 | 59.58 | 64.16 | 64.60 | a | 48.28 | a | 42.85 | d | 31.85 | 26.35 | 42.89 | ||||||||||
| 1962 | 24.53 | 26.09 | 26.19 | 43.03 | 42.44 | 53.17 | 59.60 | 58.97 | 56.88 | 45.16 | 35.48 | 34.26 | 42.15 | |||||||||||||
| 1963 | 26.90 | 37.16 | 30.92 | 31.95 | a | 47.71 | 50.47 | 57.29 | 59.00 | 58.12 | a | 48.08 | 34.93 | 32.47 | 42.92 | |||||||||||
| 1964 | 24.44 | 25.90 | 27.60 | 35.55 | 43.24 | 50.96 | c | 61.71 | 59.74 | 52.27 | 50.13 | 31.17 | 26.19 | 40.74 | ||||||||||||
| 1965 | 28.92 | 30.23 | 32.10 | 40.31 | c | 43.00 | a | 51.67 | 59.27 | 57.66 | 48.53 | 51.23 | 35.63 | 24.16 | b | 41.89 | ||||||||||
| 1966 | 24.89 | 23.93 | 33.45 | 40.77 | 51.10 | a | 52.52 | 60.08 | a | 62.39 | 55.88 | 45.50 | a | 36.72 | g | 29.44 | f | 45.05 | ||||||||
| 1967 | 27.57 | c | 30.23 | b | 29.62 | a | 28.38 | 46.27 | c | 52.28 | 63.21 | b | 66.55 | 58.48 | 46.21 | b | 37.84 | a | 23.31 | 42.50 | ||||||
| 1968 | 26.97 | 34.16 | 35.11 | 37.23 | 45.98 | 55.13 | 65.23 | 56.21 | 53.97 | 45.58 | 32.52 | a | 25.03 | 42.76 | ||||||||||||
| 1969 | 25.72 | b | 23.27 | 27.85 | a | 38.17 | 49.37 | 52.23 | 60.29 | 61.29 | 55.78 | 38.08 | 37.45 | 30.29 | 41.65 | |||||||||||
| 1970 | 27.23 | 33.66 | 30.77 | 31.82 | 46.19 | 55.17 | 62.65 | 63.73 | 51.95 | 41.60 | 34.73 | 23.44 | 41.91 | |||||||||||||
| 1971 | 27.60 | 28.62 | 27.19 | 34.50 | 42.02 | 50.87 | k | 59.55 | 62.87 | 49.05 | 38.76 | 31.67 | 18.62 | r | 40.18 | |||||||||||
| 1972 | 22.25 | g | 26.83 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 25.63 | 27.66 | 30.63 | 38.03 | 45.89 | 52.36 | 61.34 | 60.55 | 53.85 | 44.54 | 34.26 | 28.69 | 42.10 | |||||||||||||
| S.D. | 5.17 | 4.58 | 3.72 | 3.78 | 3.16 | 3.12 | 2.24 | 2.57 | 3.06 | 3.69 | 3.76 | 3.76 | 1.32 | |||||||||||||
| SKEW | -1.54 | 0.17 | 0.68 | -0.33 | 0.32 | 0.49 | 0.10 | 0.35 | -0.33 | -0.22 | 0.41 | 0.03 | 0.41 | |||||||||||||
| MAX | 34.21 | 37.16 | 42.55 | 46.16 | 52.56 | 59.58 | 66.13 | 66.55 | 59.48 | 51.55 | 44.78 | 36.84 | 45.69 | |||||||||||||
| MIN | 7.11 | 18.89 | 23.52 | 28.38 | 39.13 | 46.93 | 56.89 | 56.21 | 46.62 | 36.02 | 28.42 | 19.37 | 39.76 | |||||||||||||
| NO YRS | 37 | 37 | 38 | 37 | 36 | 35 | 38 | 38 | 39 | 39 | 38 | 37 | 30 | |||||||||||||