YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.45 | a | 21.45 | k |
1942 | 11.35 | 10.11 | 21.15 | 39.43 | 45.21 | 53.36 | b | 59.63 | d | 57.55 | a | 49.31 | a | 38.78 | f | 29.12 | a | 14.38 | b | 35.51 | a | |||||
1943 | 15.62 | j | 18.69 | a | 23.82 | a | 41.69 | d | 45.43 | d | 52.57 | b | 59.47 | a | 58.92 | 48.88 | a | 39.66 | 27.03 | 15.81 | 39.27 | a | ||||
1944 | 10.42 | a | 17.71 | 26.03 | 35.78 | 47.23 | 52.92 | 57.45 | 59.47 | ----- | z | 44.07 | b | 29.90 | ----- | z | 38.10 | b | ||||||||
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 | ----- | z | 57.79 | m | 62.80 | a | 58.50 | a | 52.23 | 40.66 | b | 30.54 | d | 17.30 | d | 43.67 | f | |
1954 | 24.08 | 25.32 | 22.72 | f | 42.05 | 49.15 | 56.62 | 64.87 | 58.83 | s | 53.82 | 43.74 | 33.04 | e | 8.96 | d | 40.16 | b | ||||||||
1955 | 11.17 | a | 12.00 | 22.75 | a | 33.35 | 46.63 | 52.08 | 60.74 | 59.85 | d | 52.55 | 41.71 | 24.46 | c | 21.77 | 36.59 | |||||||||
1956 | 21.27 | 10.87 | b | 21.66 | b | 36.85 | 50.15 | 56.95 | 59.88 | a | 57.82 | 53.78 | 42.39 | 21.40 | 11.50 | 37.04 | ||||||||||
1957 | 12.84 | c | 21.20 | a | 24.50 | a | 35.24 | a | 44.44 | 54.02 | c | 60.82 | 59.42 | 49.32 | 42.86 | b | 24.93 | 17.17 | e | 37.23 | ||||||
1958 | 9.02 | 23.85 | a | 25.00 | 33.40 | a | 49.94 | 57.18 | 58.90 | 62.29 | 52.75 | b | 42.48 | a | 29.24 | a | 20.85 | 38.74 | ||||||||
1959 | 17.77 | 18.91 | a | 24.85 | 37.78 | c | 46.76 | 57.57 | a | 59.60 | 60.10 | b | 50.47 | 40.24 | b | 29.46 | c | 22.06 | e | 38.80 | ||||||
1960 | 18.79 | 14.89 | b | 31.08 | a | 39.38 | a | 45.69 | 55.45 | 61.21 | 59.70 | a | 54.37 | 40.38 | g | 27.56 | c | 14.48 | d | 38.42 | a | |||||
1961 | 11.85 | 22.02 | 29.35 | 36.37 | 47.76 | 57.22 | 61.55 | 62.15 | 46.20 | 39.34 | 25.37 | 16.24 | f | 39.92 | a | |||||||||||
1962 | 2.53 | 21.04 | 20.00 | 40.53 | 46.90 | 53.73 | 58.82 | 59.37 | 51.40 | 43.35 | 32.15 | 19.60 | a | 37.45 | ||||||||||||
1963 | 9.34 | 24.20 | a | 26.42 | 37.98 | a | 48.63 | 55.37 | c | 62.92 | 59.73 | 54.98 | 45.92 | 29.42 | 15.73 | 39.22 | ||||||||||
1964 | 8.66 | 10.73 | a | 19.85 | a | 33.50 | 45.74 | b | 52.38 | 63.18 | a | 57.82 | 51.10 | 42.71 | 28.85 | 16.00 | b | 35.88 | ||||||||
1965 | 14.00 | 15.34 | 15.16 | b | 37.08 | 45.94 | 53.00 | a | 60.05 | 56.77 | 46.65 | 44.05 | 32.47 | a | 18.74 | 36.60 | ||||||||||
1966 | 14.80 | a | 15.89 | 30.24 | 37.75 | 47.19 | 53.91 | a | 63.87 | 59.24 | 52.83 | 40.21 | 31.92 | 7.18 | 37.92 | |||||||||||
1967 | 16.26 | 15.59 | 29.87 | 37.08 | 43.44 | 52.18 | 61.15 | 58.16 | 51.60 | 42.34 | 28.48 | 14.74 | 37.57 | |||||||||||||
1968 | 9.26 | 17.12 | a | 22.98 | 33.09 | a | 43.87 | 54.92 | 60.03 | 57.00 | 48.70 | 41.56 | 21.55 | 16.87 | a | 35.58 | ||||||||||
1969 | 22.73 | 15.39 | 19.24 | 40.48 | 50.27 | 50.23 | 61.73 | 62.03 | 53.37 | 36.02 | 22.84 | a | 16.50 | a | 37.57 | |||||||||||
1970 | 15.73 | 19.84 | 23.55 | 31.79 | a | 44.90 | 53.98 | 59.55 | 61.60 | 48.97 | 33.98 | 28.87 | 18.19 | 36.75 | ||||||||||||
1971 | 21.39 | 19.95 | 25.73 | 36.40 | 44.82 | 54.67 | 60.48 | 60.69 | 48.75 | 40.89 | 25.00 | 13.79 | 37.71 | |||||||||||||
1972 | 14.67 | a | 21.09 | 34.57 | b | 38.05 | 46.11 | 55.37 | g | 61.02 | k | 58.19 | 50.43 | 43.47 | 24.72 | 10.27 | 34.16 | b | ||||||||
1973 | 5.98 | 10.63 | a | 23.47 | 28.72 | 43.28 | b | 51.40 | a | 57.50 | 56.93 | d | 51.00 | 42.80 | a | 29.91 | a | 16.31 | 34.83 | |||||||
1974 | 8.47 | 9.28 | a | 33.00 | 36.28 | 48.37 | 50.64 | l | 60.48 | 53.98 | 48.02 | g | ----- | z | 18.85 | q | 9.36 | b | 32.40 | d | ||||||
1975 | 13.48 | b | 12.79 | b | 28.09 | c | 33.62 | d | 43.98 | c | 51.71 | a | 59.52 | 56.60 | a | 46.64 | h | 39.33 | d | 27.15 | f | 20.96 | h | 37.68 | c | |
1976 | 15.45 | j | 25.71 | e | 22.98 | h | 39.34 | h | 48.70 | k | 53.36 | h | 62.24 | j | 57.74 | f | 49.24 | g | 34.67 | g | 21.88 | i | 12.60 | e | 19.15 | j |
1977 | 6.82 | t | ----- | z | 21.95 | j | 35.54 | p | 42.22 | v | 56.28 | n | 57.38 | r | ----- | z | ----- | z | 41.77 | t | 27.95 | t | 20.00 | m | ----- | z |
1978 | 18.07 | i | 22.64 | g | ----- | z | ----- | z | 45.53 | a | 56.16 | h | 59.10 | 55.05 | a | 50.50 | c | ----- | z | 28.02 | a | ----- | z | 47.64 | g | |
1979 | ----- | z | ----- | z | 32.23 | a | 37.38 | b | 46.43 | d | 53.64 | i | 63.41 | i | 56.34 | o | 54.20 | 43.72 | a | 26.50 | a | 21.66 | 37.44 | e | ||
1980 | 23.68 | a | 21.71 | a | 27.38 | a | 36.17 | d | 44.98 | i | 56.08 | 62.19 | g | 56.16 | 53.53 | 40.20 | i | ----- | z | 29.08 | a | 37.98 | d | |||
1981 | 25.89 | ----- | z | 32.89 | ----- | z | ----- | z | 57.38 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.72 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.44 | 17.48 | 25.74 | 36.56 | 46.44 | 54.28 | 60.59 | 58.71 | 51.22 | 41.56 | 27.80 | 16.38 | 37.22 | |||||||||||||
S.D. | 6.07 | 4.96 | 4.82 | 3.10 | 2.01 | 2.13 | 1.82 | 2.10 | 2.39 | 2.65 | 3.24 | 4.80 | 1.19 | |||||||||||||
SKEW | 0.23 | -0.07 | -0.00 | -0.37 | 0.39 | 0.06 | 0.52 | -0.16 | -0.34 | -1.17 | -0.36 | 0.30 | -0.21 | |||||||||||||
MAX | 25.89 | 25.71 | 34.57 | 42.05 | 50.27 | 57.57 | 64.87 | 62.29 | 54.98 | 45.92 | 33.04 | 29.08 | 39.22 | |||||||||||||
MIN | 2.53 | 9.28 | 15.16 | 28.72 | 43.28 | 50.23 | 57.45 | 53.98 | 46.20 | 33.98 | 21.40 | 7.18 | 34.83 | |||||||||||||
YRS | 26 | 27 | 27 | 27 | 27 | 25 | 26 | 27 | 26 | 24 | 26 | 27 | 16 |