YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.24 | n | 22.73 | 7.48 | 15.11 | j | ||
1920 | 15.06 | 21.83 | 28.48 | 30.64 | e | 37.89 | c | 45.00 | 52.35 | 48.42 | 39.93 | 30.81 | 24.77 | 23.58 | 33.23 | |||||||||||
1921 | 20.32 | 21.50 | 30.23 | 32.17 | 42.26 | 50.20 | 49.03 | 46.84 | 33.23 | 27.16 | 24.00 | 17.27 | a | 32.85 | ||||||||||||
1922 | -2.00 | 16.85 | a | 23.90 | 30.37 | 35.87 | 46.27 | 50.78 | d | 50.77 | 37.23 | 28.65 | 18.33 | 16.77 | 29.48 | |||||||||||
1923 | 22.06 | 12.61 | 22.16 | 31.17 | 40.52 | 45.76 | a | 50.23 | 47.97 | 41.90 | 32.61 | 20.33 | 15.56 | m | 33.39 | a | ||||||||||
1924 | ----- | z | ----- | z | ----- | z | 30.97 | 39.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.00 | m | 6.69 | b | 25.60 | i | ||
1925 | 14.48 | 29.92 | o | 25.48 | d | 34.19 | i | 41.13 | 44.27 | o | 53.39 | 45.97 | a | 42.20 | o | 29.33 | p | 23.04 | e | 25.79 | c | 32.75 | e | |||
1926 | 15.30 | a | 28.50 | 25.28 | f | 35.47 | 38.77 | 45.43 | 52.10 | 50.76 | f | 33.10 | 29.81 | 28.47 | 15.43 | a | 32.24 | b | ||||||||
1927 | 15.81 | 28.36 | 25.68 | 29.63 | 38.55 | 47.60 | 48.71 | c | 47.42 | 39.43 | 28.84 | 32.22 | u | 8.86 | i | 35.00 | b | |||||||||
1928 | 17.92 | g | 19.67 | k | 30.68 | 30.61 | b | 41.13 | 45.70 | c | 52.45 | 44.94 | 36.03 | a | 29.65 | 22.50 | 3.30 | a | 33.70 | b | ||||||
1929 | 4.10 | 5.04 | a | 26.58 | 30.50 | 36.03 | 45.57 | 50.00 | 50.84 | 36.47 | 26.03 | 10.30 | 19.48 | 28.41 | ||||||||||||
1930 | -1.16 | 26.78 | a | 27.68 | 34.27 | 39.32 | 42.43 | 52.16 | 50.42 | 36.52 | g | 26.77 | 15.03 | 9.33 | a | 29.37 | a | |||||||||
1931 | 14.16 | 21.82 | 28.00 | 30.93 | 41.10 | 47.63 | 53.26 | 48.06 | 39.57 | 29.48 | 17.93 | 12.19 | 32.01 | |||||||||||||
1932 | 9.29 | 10.83 | 30.19 | 32.70 | 40.42 | 48.77 | 52.03 | 46.45 | 36.50 | 31.23 | 25.60 | 8.55 | 31.05 | |||||||||||||
1933 | 13.32 | 1.64 | 25.74 | 30.03 | 36.87 | 50.93 | 53.06 | 46.23 | 38.83 | a | 30.06 | 20.23 | 27.32 | 31.19 | ||||||||||||
1934 | 24.77 | 25.21 | 28.45 | 36.30 | 43.29 | 46.97 | 53.70 | a | 54.70 | a | 40.67 | 36.23 | 30.50 | 22.97 | 36.98 | |||||||||||
1935 | 17.87 | 22.11 | 23.84 | 33.40 | 39.77 | 47.80 | 52.77 | 48.19 | 39.20 | 29.71 | 18.17 | 14.81 | 32.30 | |||||||||||||
1936 | 17.81 | 14.83 | 26.19 | 35.30 | 44.00 | 50.40 | 54.58 | 51.61 | 37.67 | 29.29 | 11.40 | 14.32 | 32.28 | |||||||||||||
1937 | -6.26 | 13.29 | 28.35 | 31.40 | 41.55 | 46.90 | 56.77 | 49.45 | 41.37 | 33.84 | 28.70 | 25.61 | 32.58 | |||||||||||||
1938 | 23.26 | 27.68 | 28.90 | 34.30 | 40.68 | 48.03 | 55.48 | 48.19 | 45.03 | 34.45 | 18.07 | 18.60 | a | 35.22 | ||||||||||||
1939 | 19.19 | 20.39 | 27.90 | 32.10 | 42.87 | 43.87 | 53.58 | 48.65 | 39.50 | 32.68 | 15.10 | 23.52 | 33.28 | |||||||||||||
1940 | 21.90 | 27.66 | 30.87 | 35.90 | 40.61 | 50.10 | a | 55.23 | 50.71 | 48.13 | 37.61 | 24.77 | 20.29 | 36.98 | ||||||||||||
1941 | 22.19 | 28.68 | 28.26 | 34.20 | 44.26 | 49.23 | 56.52 | 53.77 | 39.70 | 33.52 | 25.07 | 25.52 | 36.74 | |||||||||||||
1942 | 12.90 | 20.93 | 23.65 | 32.77 | 41.10 | 45.27 | 54.29 | 51.26 | 42.40 | 33.32 | 27.43 | 26.16 | 34.29 | |||||||||||||
1943 | 18.39 | 22.86 | 26.32 | 37.57 | 37.94 | 45.20 | 51.45 | 50.39 | 42.40 | 36.68 | 24.73 | 21.50 | a | 34.62 | ||||||||||||
1944 | 7.06 | 25.34 | 24.90 | 34.67 | 41.26 | 46.87 | 53.23 | 48.87 | ----- | z | ----- | z | ----- | z | ----- | z | 35.28 | d | ||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.69 | b | 38.48 | c | 28.03 | b | 25.52 | a | 14.73 | a | 30.89 | g |
1955 | 15.52 | b | 16.59 | a | 23.17 | a | 31.38 | d | 37.34 | b | 47.90 | a | 50.94 | 46.77 | a | 38.90 | 30.00 | d | 20.76 | a | 22.23 | 31.79 | ||||
1956 | 16.55 | b | 12.79 | 26.86 | b | 32.10 | a | 44.66 | b | 46.03 | 52.18 | c | 48.16 | 37.54 | b | 34.29 | c | 21.59 | a | 21.33 | a | 32.84 | ||||
1957 | 5.96 | d | 21.15 | a | 31.55 | 34.31 | a | 44.55 | b | 47.87 | 49.74 | 47.74 | 39.90 | a | 34.65 | 21.40 | 26.00 | 33.73 | ||||||||
1958 | 22.97 | 30.64 | 23.87 | 32.73 | 43.42 | 49.83 | 51.65 | 52.55 | 38.13 | 28.87 | 22.13 | 24.71 | 35.13 | |||||||||||||
1959 | 23.32 | 25.04 | 22.21 | b | 31.31 | a | 34.29 | 48.14 | b | 49.21 | b | 48.58 | 40.59 | c | 32.00 | b | 17.10 | 10.83 | a | 31.89 | ||||||
1960 | 10.48 | d | 23.00 | a | 31.19 | d | ----- | z | 36.25 | c | 45.38 | f | 54.75 | c | ----- | z | 35.60 | t | 29.69 | b | 23.52 | c | 16.80 | a | 28.21 | d |
1961 | 8.74 | 27.32 | c | 28.74 | 32.11 | b | 33.50 | c | 52.29 | m | 51.05 | k | 53.33 | a | 36.50 | 30.93 | b | 21.55 | a | 21.39 | 29.41 | b | ||||
1962 | 8.90 | 22.29 | 25.68 | 33.23 | 42.23 | 47.53 | 50.20 | a | 49.42 | 41.13 | 34.00 | 27.30 | 26.32 | 34.02 | ||||||||||||
1963 | 12.81 | 28.96 | 26.16 | 31.00 | 42.77 | a | 49.17 | a | 50.30 | a | 51.13 | 46.53 | 39.36 | c | 28.67 | f | 19.00 | 36.11 | a | |||||||
1964 | 16.06 | 13.59 | 27.10 | 30.33 | 37.58 | 47.80 | 52.16 | 47.65 | 38.00 | 30.30 | a | 26.52 | i | 24.00 | 33.14 | a | ||||||||||
1965 | 23.65 | 24.04 | 20.74 | 35.87 | 38.71 | 47.50 | 51.06 | 50.55 | 38.07 | 31.40 | f | 28.46 | b | 17.90 | 34.23 | a | ||||||||||
1966 | 23.48 | 21.93 | 25.00 | 30.69 | a | 41.03 | 45.57 | 51.58 | 49.42 | 46.17 | 28.77 | 29.63 | 25.90 | 34.93 | ||||||||||||
1967 | 25.84 | 24.71 | 26.26 | 29.55 | a | 38.29 | 48.33 | 55.29 | 52.19 | 44.87 | 30.65 | 26.20 | 12.83 | g | 36.56 | a | ||||||||||
1968 | 19.23 | 27.97 | 28.00 | 28.20 | 38.81 | 48.50 | 52.16 | 50.61 | 41.73 | 29.23 | a | 30.33 | 23.26 | 34.84 | ||||||||||||
1969 | 18.68 | 19.96 | 25.42 | 33.17 | 42.90 | 48.70 | 51.87 | 48.87 | 42.90 | 29.97 | 21.90 | 23.52 | 33.99 | |||||||||||||
1970 | 25.16 | 25.18 | 26.94 | ----- | z | ----- | z | ----- | z | ----- | z | 46.87 | 34.97 | 27.19 | 26.83 | 19.30 | a | 29.05 | d | |||||||
1971 | 22.19 | 20.86 | 21.30 | a | 28.77 | 40.13 | 44.39 | b | 51.61 | 53.74 | 35.24 | a | 28.77 | 22.93 | 18.16 | l | 33.63 | a | ||||||||
1972 | ----- | z | ----- | z | ----- | z | 28.97 | 40.35 | 49.10 | 50.19 | 52.03 | 38.20 | 32.97 | 28.13 | 11.35 | 36.81 | c | |||||||||
1973 | 18.87 | 25.71 | 29.58 | 32.27 | 40.37 | a | 46.58 | f | 52.14 | c | 50.29 | g | 39.95 | i | 30.10 | 27.40 | 25.35 | 31.31 | c | |||||||
1974 | 15.32 | 23.39 | 27.58 | 31.19 | c | 38.83 | b | 49.11 | c | 52.58 | e | 48.17 | b | 38.07 | a | 29.92 | f | 24.39 | b | 20.00 | f | 34.86 | b | |||
1975 | 13.89 | c | 24.04 | d | 27.14 | c | 28.74 | g | 39.73 | i | 46.46 | d | 58.68 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.88 | h |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.52 | 21.52 | 26.67 | 32.25 | 40.05 | 47.35 | 52.30 | 49.42 | 39.61 | 31.18 | 22.96 | 19.03 | 33.33 | |||||||||||||
S.D. | 7.54 | 6.50 | 2.68 | 2.22 | 2.69 | 1.93 | 1.97 | 2.34 | 3.43 | 3.05 | 4.85 | 6.36 | 2.11 | |||||||||||||
SKEW | -1.00 | -1.16 | -0.24 | 0.43 | -0.34 | -0.30 | 0.34 | 0.38 | 0.48 | 0.72 | -0.66 | -0.71 | -0.21 | |||||||||||||
MAX | 25.84 | 30.64 | 31.55 | 37.57 | 44.66 | 50.93 | 56.77 | 54.70 | 48.13 | 39.36 | 30.50 | 27.32 | 36.98 | |||||||||||||
MIN | -6.26 | 1.64 | 20.74 | 28.20 | 33.50 | 42.43 | 48.71 | 44.94 | 33.10 | 26.03 | 10.30 | 3.30 | 28.41 | |||||||||||||
YRS | 43 | 42 | 43 | 42 | 44 | 40 | 42 | 42 | 40 | 41 | 42 | 41 | 26 |