YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | 21.48 | 24.83 | 30.58 | 37.36 | b | 43.29 | 47.29 | b | 51.73 | a | 46.53 | a | 48.90 | 40.28 | b | 24.57 | 23.23 | 36.67 | ||||||||
1941 | 24.87 | 25.00 | 31.78 | h | 36.93 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.93 | i | |||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 41.38 | r | 44.63 | 46.74 | 48.73 | a | 41.50 | 33.87 | 30.43 | 24.74 | 38.66 | e | ||||||
1954 | 18.19 | 27.75 | 24.32 | 30.10 | 38.77 | 44.13 | 47.32 | 47.43 | a | 43.50 | 30.32 | 33.70 | 21.55 | 33.93 | ||||||||||||
1955 | 22.33 | a | 17.43 | 19.42 | 30.83 | 36.90 | a | 45.13 | 49.55 | 44.94 | 39.80 | 35.13 | 20.97 | 17.13 | a | 31.63 | ||||||||||
1956 | 19.69 | e | 11.43 | a | 23.55 | 32.60 | 40.81 | 44.43 | 49.52 | 46.65 | 38.83 | 32.52 | 20.07 | a | 20.35 | 31.70 | ||||||||||
1957 | 4.58 | 9.30 | a | 24.58 | 32.83 | 45.68 | 46.80 | 46.35 | 45.68 | 43.20 | 35.84 | 25.10 | 26.37 | a | 32.19 | |||||||||||
1958 | 26.70 | a | 29.93 | 28.74 | 34.17 | 44.97 | 50.27 | 51.87 | 51.32 | ----- | z | ----- | z | ----- | z | ----- | z | 39.75 | d | |||||||
1959 | ----- | z | 18.93 | a | 26.71 | 32.70 | 38.03 | 45.93 | 46.74 | 44.77 | 42.60 | 32.90 | 21.13 | 19.48 | 33.63 | a | ||||||||||
1960 | 12.48 | 18.93 | 25.03 | 31.70 | 37.90 | 43.47 | 49.13 | 46.52 | 37.90 | 33.35 | 25.87 | 20.74 | 31.92 | |||||||||||||
1961 | 21.45 | 29.29 | 28.10 | 31.87 | 41.26 | 48.13 | 51.13 | 50.23 | 37.43 | 29.87 | 19.73 | 17.71 | 33.85 | |||||||||||||
1962 | 10.58 | 21.71 | 22.42 | 32.40 | 38.16 | 41.77 | 44.71 | 47.42 | 41.27 | 35.61 | 32.10 | a | 28.16 | 33.03 | ||||||||||||
1963 | 14.55 | 26.00 | 27.68 | 33.63 | 37.90 | 46.93 | 49.26 | 49.55 | 44.77 | 36.35 | 29.57 | 20.61 | 34.73 | |||||||||||||
1964 | 20.77 | 15.10 | 23.16 | 30.93 | 38.16 | 46.50 | 49.45 | 45.77 | 38.17 | 31.81 | 28.83 | 18.00 | a | 32.22 | ||||||||||||
1965 | 23.00 | 19.86 | 19.58 | 34.37 | 36.45 | 44.20 | 49.00 | ----- | z | 38.30 | 33.71 | 30.87 | 24.03 | b | 32.12 | a | ||||||||||
1966 | 18.45 | 23.00 | 26.19 | 31.53 | 37.97 | 43.00 | 48.45 | 47.13 | 46.20 | 33.52 | 29.00 | a | 26.58 | 34.25 | ||||||||||||
1967 | 23.55 | 24.79 | 26.77 | 30.77 | 38.00 | 47.77 | 48.32 | 49.26 | 45.10 | 35.71 | 26.83 | 16.97 | 34.49 | |||||||||||||
1968 | 18.58 | 21.69 | 28.90 | 30.23 | 37.35 | 45.17 | 49.35 | 48.06 | 42.00 | 32.29 | 28.37 | 19.00 | a | 33.42 | ||||||||||||
1969 | 8.61 | 16.00 | 24.00 | 35.20 | 40.97 | 49.27 | 46.39 | 45.16 | 43.07 | 31.45 | 27.40 | 25.61 | 32.76 | |||||||||||||
1970 | 18.42 | 22.57 | 25.13 | 30.57 | 38.26 | 48.70 | 51.74 | 47.06 | 37.83 | 31.42 | 26.31 | a | 17.61 | 32.97 | ||||||||||||
1971 | 19.10 | 22.07 | 22.10 | 31.63 | 40.87 | 44.86 | a | 48.00 | 48.77 | 39.60 | 32.26 | 29.50 | 16.68 | 32.95 | ||||||||||||
1972 | 12.97 | 20.21 | 29.45 | 29.50 | 42.10 | 47.03 | 47.26 | 49.35 | 38.37 | 31.29 | 31.17 | 18.81 | 33.12 | |||||||||||||
1973 | 16.32 | 23.46 | 28.03 | ----- | z | 38.61 | 44.17 | 48.65 | 47.74 | 43.17 | 35.65 | 28.17 | 26.45 | 34.58 | a | |||||||||||
1974 | 16.65 | 26.21 | 28.39 | 35.67 | 37.06 | 46.97 | 49.58 | 48.39 | 39.26 | g | ----- | z | ----- | z | ----- | z | 36.11 | d | ||||||||
1975 | ----- | z | ----- | z | 25.16 | 30.77 | ----- | z | 48.59 | m | ----- | z | 47.07 | d | 40.33 | f | ----- | z | ----- | z | ----- | z | 34.33 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 17.88 | 21.54 | 25.57 | 32.53 | 39.52 | 45.94 | 48.71 | 47.55 | 41.50 | 33.58 | 27.13 | 21.42 | 33.28 | |||||||||||||
S.D. | 5.47 | 5.27 | 3.02 | 2.19 | 2.61 | 2.13 | 1.87 | 1.73 | 3.18 | 2.45 | 4.01 | 3.74 | 1.29 | |||||||||||||
SKEW | -0.68 | -0.58 | -0.38 | 0.77 | 1.04 | 0.12 | -0.04 | 0.26 | 0.51 | 0.82 | -0.50 | 0.36 | 0.93 | |||||||||||||
MAX | 26.70 | 29.93 | 30.58 | 37.36 | 45.68 | 50.27 | 51.87 | 51.32 | 48.90 | 40.28 | 33.70 | 28.16 | 36.67 | |||||||||||||
MIN | 4.58 | 9.30 | 19.42 | 29.50 | 36.45 | 41.77 | 44.71 | 44.77 | 37.43 | 29.87 | 19.73 | 16.68 | 31.63 | |||||||||||||
YRS | 22 | 23 | 23 | 23 | 22 | 23 | 23 | 23 | 21 | 21 | 21 | 21 | 17 |