YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | 49.38 | a | 51.77 | 50.39 | 41.47 | 34.48 | 24.67 | 2.90 | 36.44 | e | ||||||
1963 | -11.13 | -6.18 | 14.77 | 28.90 | 36.10 | 50.37 | 55.81 | 51.68 | 45.97 | 41.77 | 23.00 | -2.55 | 27.38 | |||||||||||||
1964 | 3.26 | 3.00 | 6.55 | 26.60 | 43.52 | 48.63 | 56.29 | 49.65 | 41.70 | 33.26 | 20.60 | -3.10 | 27.50 | |||||||||||||
1965 | -9.23 | -8.61 | 2.87 | 30.00 | a | 40.65 | 46.63 | 51.94 | 49.81 | 37.40 | 33.07 | a | 16.17 | 11.74 | 25.20 | |||||||||||
1966 | -15.16 | -0.75 | 17.53 | a | 25.60 | 36.45 | 50.97 | 57.97 | a | 52.74 | 44.03 | 32.42 | 14.43 | 2.87 | 26.59 | |||||||||||
1967 | -2.16 | -11.61 | 12.48 | 26.63 | 34.13 | 50.60 | 52.16 | 50.19 | 44.13 | 32.40 | a | 17.57 | 4.45 | 25.92 | ||||||||||||
1968 | -3.19 | -4.24 | 19.10 | 28.77 | 38.48 | 48.93 | 53.81 | 51.84 | 46.57 | 37.06 | 21.60 | 1.45 | 28.35 | |||||||||||||
1969 | -3.29 | 3.25 | 9.71 | 31.50 | 40.13 | 43.55 | a | 54.19 | 56.00 | 45.80 | 30.94 | 18.97 | 10.16 | 28.41 | ||||||||||||
1970 | -7.90 | -3.89 | 7.55 | 26.63 | 37.81 | 52.59 | a | 56.32 | 53.29 | 44.43 | 35.16 | 19.10 | -1.42 | 26.64 | ||||||||||||
1971 | -12.03 | 1.36 | 11.97 | 26.80 | 36.61 | 52.90 | 51.39 | 50.42 | 45.93 | 38.00 | 18.90 | 2.65 | 27.07 | |||||||||||||
1972 | -13.42 | -5.76 | 9.61 | 25.30 | 44.87 | 48.83 | 53.29 | 53.06 | 39.97 | 30.26 | 18.83 | -4.90 | 25.00 | |||||||||||||
1973 | 0.23 | 1.29 | 24.35 | 26.76 | a | 38.58 | 49.73 | 54.45 | 55.32 | 42.47 | 38.13 | 18.90 | 2.74 | 29.41 | ||||||||||||
1974 | -6.52 | -1.50 | 9.13 | 27.23 | 36.61 | 48.07 | 56.87 | 51.55 | 37.70 | 32.65 | 20.17 | 10.16 | 26.84 | |||||||||||||
1975 | -3.13 | 0.18 | 6.65 | 23.63 | 42.61 | 49.83 | 57.96 | f | 51.24 | j | 39.57 | i | 35.00 | i | 21.32 | k | -2.20 | k | 19.96 | f | ||||||
1976 | -14.00 | j | 9.20 | i | 10.78 | h | 30.25 | j | 36.55 | k | 49.18 | h | 50.29 | j | 51.50 | i | 36.52 | i | 22.75 | k | 11.76 | i | -9.89 | l | ----- | z |
1977 | -11.94 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.82 | m | 31.95 | j | 16.95 | j | -2.33 | p | ----- | z |
1978 | -12.48 | j | -7.95 | h | 7.35 | h | 25.45 | j | 39.27 | i | 44.00 | h | 50.63 | d | 47.22 | h | 38.90 | j | 26.62 | j | 6.71 | i | -7.11 | m | 50.63 | k |
1979 | -23.23 | i | -12.15 | h | 5.52 | j | 18.14 | i | 29.68 | i | 39.38 | i | 46.15 | k | 40.61 | h | 32.47 | o | 25.33 | j | 17.50 | h | 8.47 | n | ----- | z |
1980 | -8.00 | i | ----- | z | ----- | z | 33.08 | r | 40.38 | j | 47.48 | i | 51.19 | j | 49.76 | j | 36.30 | j | 25.13 | h | 14.21 | k | -9.05 | k | ----- | z |
1981 | -6.71 | j | -3.10 | h | 11.41 | i | 25.82 | h | 32.55 | k | 41.62 | i | 50.64 | i | 53.95 | j | 40.05 | i | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -6.44 | -2.57 | 11.71 | 27.26 | 38.97 | 49.36 | 54.06 | 52.00 | 42.89 | 34.58 | 19.45 | 2.86 | 27.03 | |||||||||||||
S.D. | 5.60 | 4.59 | 5.92 | 2.08 | 3.21 | 2.36 | 2.31 | 2.03 | 3.10 | 3.31 | 2.69 | 5.27 | 1.31 | |||||||||||||
SKEW | 0.04 | -0.47 | 0.66 | 0.43 | 0.46 | -0.81 | 0.14 | 0.70 | -0.57 | 0.74 | 0.13 | 0.34 | 0.12 | |||||||||||||
MAX | 3.26 | 3.25 | 24.35 | 31.50 | 44.87 | 52.90 | 57.97 | 56.00 | 46.57 | 41.77 | 24.67 | 11.74 | 29.41 | |||||||||||||
MIN | -15.16 | -11.61 | 2.87 | 23.63 | 34.13 | 43.55 | 50.63 | 49.65 | 37.40 | 30.26 | 14.43 | -4.90 | 25.00 | |||||||||||||
YRS | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 |