YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.44 | v | ----- | z |
1923 | 40.77 | 37.36 | 54.13 | 59.67 | 67.97 | a | 72.67 | 84.48 | 84.55 | 76.00 | 59.03 | 51.23 | 42.90 | 60.90 | ||||||||||||
1924 | 35.53 | a | 49.52 | 49.80 | a | 61.90 | 78.30 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.01 | g | ||
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.54 | g | 71.23 | 62.61 | 48.21 | a | 42.03 | 56.02 | h | |||
1926 | 37.29 | 47.00 | 56.84 | 63.73 | 64.97 | 80.10 | 86.10 | 79.81 | 66.03 | 61.23 | a | 48.30 | 38.35 | 60.81 | ||||||||||||
1927 | 31.81 | 41.89 | 46.10 | a | 55.50 | 61.00 | a | 74.07 | 84.23 | 82.68 | 66.17 | 59.77 | 49.53 | 34.68 | 57.29 | |||||||||||
1928 | 34.77 | 40.52 | 49.90 | 53.10 | 72.40 | a | 71.43 | 83.48 | 81.84 | 74.57 | 61.29 | 46.27 | 35.94 | 58.79 | ||||||||||||
1929 | 30.03 | 28.93 | 49.06 | 53.07 | a | 69.00 | h | 76.07 | a | 82.35 | 88.87 | 70.30 | 66.45 | 51.62 | a | 44.16 | 58.27 | a | ||||||||
1930 | 20.21 | b | 48.07 | a | 52.03 | b | 64.00 | 63.60 | a | 74.90 | 85.65 | 83.42 | 71.97 | a | 56.23 | a | 47.04 | c | 35.41 | b | 58.54 | |||||
1931 | 43.71 | c | 42.77 | b | 50.19 | 60.74 | c | 73.66 | b | 73.54 | b | 86.58 | 84.90 | 72.33 | 60.30 | a | 44.59 | c | 36.53 | a | 60.82 | |||||
1932 | 39.11 | d | 40.83 | 47.76 | b | 57.37 | 64.96 | d | 77.50 | 79.74 | 79.87 | 77.40 | 63.39 | 52.22 | c | 35.10 | a | 59.60 | ||||||||
1933 | 37.69 | b | 37.96 | a | 49.81 | 57.80 | 60.28 | b | 75.79 | a | 85.55 | 85.03 | a | 68.03 | 66.97 | 51.86 | a | 46.45 | b | 60.27 | ||||||
1934 | 46.90 | a | 48.82 | 61.06 | 68.03 | a | 71.45 | b | 78.30 | 83.03 | 84.52 | 73.21 | a | 60.70 | a | 47.87 | 39.07 | c | 63.58 | |||||||
1935 | 39.17 | a | 43.22 | a | 46.73 | a | 53.90 | 69.80 | a | 78.07 | c | 82.35 | 81.60 | a | 78.53 | 62.69 | b | 45.72 | a | 34.00 | 59.65 | |||||
1936 | 38.93 | a | 29.19 | c | 49.63 | a | 61.62 | a | 70.47 | a | 75.27 | 82.48 | 84.68 | 73.90 | 68.23 | a | 50.10 | a | 43.17 | a | 60.64 | |||||
1937 | 26.42 | g | 39.12 | b | 50.87 | a | 53.63 | c | 67.73 | a | 72.83 | a | 83.58 | 79.07 | a | 75.07 | 65.69 | b | 46.60 | e | 41.50 | c | 61.43 | a | ||
1938 | 37.89 | d | 37.71 | 47.90 | a | 56.76 | a | 65.96 | c | 75.34 | a | 83.80 | a | 76.90 | 72.38 | a | 59.48 | b | 42.10 | a | 39.94 | 58.01 | ||||
1939 | 42.60 | a | 37.04 | a | 51.16 | 57.24 | a | 70.42 | 70.31 | a | 83.77 | 85.90 | 75.62 | a | 63.79 | b | 55.48 | a | 45.82 | c | 61.60 | |||||
1940 | 36.00 | d | 44.75 | a | 55.55 | 58.03 | 71.07 | a | 81.66 | a | 83.23 | a | 83.81 | 71.87 | 62.29 | 43.03 | 42.35 | 61.14 | ||||||||
1941 | 38.23 | 45.26 | a | 55.97 | 61.10 | 64.61 | 73.17 | 88.10 | 80.71 | 66.33 | 57.83 | b | 51.43 | 41.23 | 60.33 | |||||||||||
1942 | 28.55 | 39.61 | 48.48 | 60.23 | 62.39 | 69.50 | 86.16 | 85.45 | 77.53 | 66.13 | 44.90 | 43.19 | 59.34 | |||||||||||||
1943 | 31.06 | 41.07 | 46.68 | 59.70 | 61.45 | 67.73 | 84.10 | 78.90 | 78.83 | 63.32 | 44.97 | 35.74 | 57.80 | |||||||||||||
1944 | 37.35 | 39.96 | a | 51.03 | b | 56.63 | 66.35 | 71.90 | a | 82.23 | 79.23 | 76.63 | 67.97 | b | 43.10 | 32.63 | a | 58.75 | ||||||||
1945 | 39.29 | 43.11 | 46.50 | a | 55.77 | 66.29 | 73.48 | a | 86.55 | 85.26 | 71.79 | a | 65.35 | 45.93 | a | 39.22 | d | 59.88 | ||||||||
1946 | 42.26 | 45.19 | a | 48.93 | a | 59.59 | a | 69.13 | 71.76 | a | 83.53 | a | 82.80 | a | 72.00 | a | 56.32 | c | 45.07 | c | 43.00 | b | 59.96 | |||
1947 | 39.03 | b | 48.54 | b | 56.45 | 61.90 | 74.13 | 70.22 | c | 79.06 | 78.87 | 75.39 | b | 57.26 | 44.41 | a | 42.40 | a | 60.64 | |||||||
1948 | 39.03 | b | 39.70 | b | 45.07 | a | 51.27 | 62.61 | 74.23 | 77.17 | a | 77.35 | 70.53 | 58.90 | 46.93 | 34.32 | 56.43 | |||||||||
1949 | 26.58 | 38.29 | 48.29 | 62.74 | g | 71.39 | 77.33 | c | 81.65 | 81.48 | 73.00 | g | 57.62 | g | 54.37 | 39.08 | e | 57.61 | c | |||||||
1950 | 25.67 | s | 37.86 | 45.35 | 54.53 | 65.19 | 71.27 | 83.45 | 83.84 | 77.20 | 57.52 | b | 47.15 | c | 43.42 | 60.62 | a | |||||||||
1951 | 35.00 | d | 41.21 | 44.58 | e | 61.07 | 64.81 | 76.60 | e | 84.65 | 81.71 | 75.82 | m | 57.71 | 45.03 | 36.77 | 57.19 | a | ||||||||
1952 | 34.19 | 44.45 | 47.10 | 61.67 | 67.58 | 72.04 | c | 84.87 | 82.74 | 79.30 | 69.97 | 43.13 | 36.23 | 60.27 | ||||||||||||
1953 | 46.94 | 46.40 | c | 49.65 | 54.47 | 60.97 | 65.13 | 84.18 | c | 79.87 | 77.20 | 70.35 | 51.47 | 43.81 | 60.87 | |||||||||||
1954 | 37.81 | 44.25 | 45.97 | 58.47 | 67.06 | 68.89 | c | 80.68 | c | 75.50 | a | 70.83 | 57.14 | c | 51.43 | 39.19 | 58.10 | |||||||||
1955 | 38.65 | 41.96 | 43.53 | a | 49.53 | 61.40 | a | 74.10 | 77.03 | 83.33 | a | 73.70 | 61.45 | 41.20 | 37.94 | 56.99 | ||||||||||
1956 | 37.26 | 34.72 | 48.59 | d | 60.53 | 66.76 | b | 70.44 | c | 85.13 | 81.19 | 75.63 | 57.61 | 43.57 | 42.84 | 58.69 | ||||||||||
1957 | 25.16 | 41.36 | 47.00 | 56.60 | 67.10 | 75.80 | 80.00 | 77.39 | 75.87 | 54.39 | 48.17 | 45.90 | 57.89 | |||||||||||||
1958 | 39.84 | 49.14 | 47.35 | 54.67 | 73.10 | 75.90 | 86.97 | a | 88.47 | a | 72.43 | 65.06 | 47.20 | 43.55 | 61.97 | |||||||||||
1959 | 40.32 | 38.89 | 50.45 | 58.90 | 60.06 | 73.53 | 85.17 | a | 79.55 | 68.00 | 62.77 | 51.15 | d | 39.77 | 59.05 | |||||||||||
1960 | 31.90 | 42.10 | 49.45 | 57.27 | 62.26 | 77.40 | 88.97 | 78.47 | a | 75.47 | 64.29 | 48.30 | 36.87 | 59.40 | ||||||||||||
1961 | 39.84 | 48.29 | 49.32 | 56.03 | a | 62.19 | 80.63 | 85.94 | 88.41 | b | 70.34 | a | 58.97 | 44.23 | 40.32 | 60.38 | ||||||||||
1962 | 38.00 | 42.79 | 45.68 | 61.50 | 57.68 | 73.70 | 82.23 | 78.77 | a | 75.93 | 60.35 | 48.93 | 43.13 | 59.06 | ||||||||||||
1963 | 36.00 | 50.50 | 51.39 | 51.73 | 59.65 | 68.03 | a | 76.03 | 80.31 | b | 78.13 | 62.32 | 48.03 | 38.10 | 58.35 | |||||||||||
1964 | 41.94 | 47.62 | 47.67 | a | 54.70 | 63.39 | 69.87 | 82.00 | 77.13 | 70.83 | 59.77 | 39.86 | a | 35.45 | 57.52 | |||||||||||
1965 | 37.19 | 45.79 | 44.80 | a | 53.17 | 60.10 | 72.07 | 83.19 | 79.65 | 69.07 | 68.58 | 48.10 | 41.16 | 58.57 | ||||||||||||
1966 | 39.30 | a | 42.43 | 50.26 | 60.33 | 69.61 | 71.20 | 78.32 | 81.58 | 75.10 | 62.87 | 48.23 | 42.47 | a | 60.14 | |||||||||||
1967 | 43.71 | 48.07 | 48.39 | 50.17 | 66.42 | 77.17 | 85.90 | 89.74 | 81.10 | a | 63.37 | a | 48.20 | 40.16 | 61.87 | |||||||||||
1968 | 41.45 | 46.21 | 54.42 | 55.40 | 64.84 | 74.83 | 85.77 | a | 76.33 | a | 73.27 | 58.77 | 46.17 | 37.70 | a | 59.60 | ||||||||||
1969 | 29.06 | 35.96 | 49.39 | 56.10 | 69.84 | 76.47 | 81.84 | 80.19 | 73.43 | 56.42 | 51.50 | 37.45 | 58.14 | |||||||||||||
1970 | 38.16 | 43.50 | 47.87 | 51.43 | 66.81 | 79.47 | 85.68 | 85.42 | 67.67 | 58.97 | 46.47 | 39.97 | 59.28 | |||||||||||||
1971 | 43.55 | 47.00 | 46.45 | 54.90 | 67.39 | 68.97 | 85.94 | 87.55 | 67.77 | 59.93 | c | 48.50 | b | 40.61 | 59.88 | |||||||||||
1972 | 37.48 | 43.76 | 52.24 | b | 53.87 | 68.68 | 76.07 | 84.97 | a | 86.58 | 69.96 | d | 61.13 | 48.00 | 32.90 | a | 59.64 | |||||||||
1973 | 35.68 | 42.89 | 51.33 | a | 59.67 | 70.03 | 76.28 | l | 86.06 | 82.29 | 72.77 | 61.10 | b | 43.20 | 43.30 | a | 58.94 | a | ||||||||
1974 | 32.45 | 46.36 | 49.47 | a | 54.13 | 61.13 | a | 76.93 | o | 81.92 | e | 83.96 | g | 79.30 | c | 65.84 | 49.07 | 42.32 | 56.20 | b | ||||||
1975 | 41.10 | a | 38.48 | c | 45.90 | a | 51.36 | b | 66.38 | b | 72.23 | 86.70 | a | 78.86 | b | 76.97 | 58.75 | c | 46.27 | 44.10 | 58.92 | |||||
1976 | 43.14 | b | 42.83 | 47.65 | h | 53.79 | b | 66.94 | 66.81 | n | 84.68 | f | 75.58 | 77.07 | c | 65.45 | 50.07 | a | 45.50 | a | 57.82 | c | ||||
1977 | 36.79 | b | 44.96 | 49.90 | 64.76 | a | 61.24 | b | 75.67 | o | 82.21 | b | 87.81 | 68.27 | 60.87 | a | 45.54 | b | 39.00 | 58.30 | a | |||||
1978 | 37.03 | a | 43.08 | b | 54.58 | 54.50 | 61.97 | b | 75.19 | c | 88.40 | p | 80.13 | 69.30 | 65.26 | 42.42 | d | 35.81 | 56.30 | a | ||||||
1979 | 24.48 | 40.68 | c | 53.94 | 55.83 | 68.23 | 76.85 | c | 85.63 | d | 85.14 | j | 78.10 | 65.50 | a | 40.48 | c | 43.87 | 57.60 | a | ||||||
1980 | 32.68 | 39.64 | a | 48.42 | 59.67 | 64.57 | a | 67.54 | d | 83.21 | c | 80.75 | g | 75.31 | a | 63.35 | 48.43 | 46.09 | i | 58.28 | b | |||||
1981 | 38.13 | a | 43.14 | 53.03 | b | 57.47 | 66.32 | 74.75 | n | 81.94 | 88.35 | 76.80 | 59.87 | 51.35 | g | 41.10 | a | 60.62 | b | |||||||
1982 | 38.35 | 41.16 | c | 50.97 | a | 55.23 | 65.67 | a | 70.35 | m | 80.61 | 84.45 | 72.43 | b | 60.42 | 43.47 | 38.23 | e | 57.36 | a | ||||||
1983 | 44.63 | a | 46.54 | d | 53.52 | d | 57.54 | b | 70.13 | 71.78 | l | 77.40 | a | 85.13 | 71.70 | 64.52 | 50.43 | 28.13 | 59.06 | a | ||||||
1984 | 42.65 | 46.96 | f | 53.52 | f | 53.14 | a | 61.82 | c | 69.93 | b | 85.19 | d | 85.13 | 73.06 | m | 58.36 | c | 45.68 | e | 34.64 | i | 62.74 | d | ||
1985 | 29.93 | d | 43.11 | j | 50.93 | b | 63.52 | c | 68.93 | b | 76.84 | e | 90.61 | 81.03 | 67.10 | 59.30 | a | 36.41 | c | 22.78 | m | 62.46 | b | |||
1986 | 41.70 | h | 42.59 | f | 56.34 | b | 56.54 | d | 65.07 | c | 83.81 | c | 79.38 | b | 89.38 | b | 68.20 | 65.00 | a | 47.41 | a | 36.07 | c | 64.72 | b | |
1987 | 37.50 | c | 45.38 | d | 50.58 | 65.10 | a | 70.76 | b | 79.38 | a | 80.00 | a | 84.06 | 81.30 | 70.83 | a | 50.27 | 35.42 | 62.55 | ||||||
1988 | 35.53 | a | 48.34 | 52.45 | 60.89 | b | 63.96 | c | 72.07 | 85.07 | a | 84.47 | a | 76.31 | a | 72.86 | c | 48.27 | 42.39 | 61.88 | ||||||
1989 | 43.65 | 32.00 | a | 48.19 | 61.79 | a | 65.32 | 78.68 | b | 83.92 | f | 79.97 | a | 76.50 | 62.55 | 53.53 | 43.03 | a | 58.66 | a | ||||||
1990 | 42.70 | a | 45.43 | e | 54.68 | 65.17 | 65.23 | 75.17 | 88.60 | a | 84.70 | a | 82.45 | a | 63.35 | 52.64 | b | 33.93 | a | 62.84 | ||||||
1991 | 40.94 | 53.00 | a | 48.52 | 57.53 | 62.37 | a | 69.93 | a | 85.37 | a | 88.59 | b | 81.67 | 66.42 | 46.79 | a | 39.90 | 61.75 | |||||||
1992 | 43.39 | 49.11 | a | 57.19 | 60.83 | 73.83 | a | 83.07 | 83.50 | a | 88.26 | 74.68 | b | 66.13 | a | 46.14 | a | 36.48 | b | 63.55 | ||||||
1993 | 29.77 | 33.67 | a | 49.03 | 56.72 | a | 71.48 | 71.13 | 74.26 | 80.55 | 78.43 | b | 68.24 | b | 45.10 | 37.87 | 58.02 | |||||||||
1994 | 48.86 | c | 41.48 | a | 57.03 | a | 62.03 | a | 69.55 | 75.20 | 90.31 | b | 85.93 | a | 81.27 | 62.23 | 43.30 | 41.17 | a | 63.20 | ||||||
1995 | 34.69 | e | 48.54 | 51.10 | 56.17 | 67.29 | 71.97 | 82.32 | 81.10 | 78.23 | 61.37 | a | 52.33 | 37.16 | 60.19 | |||||||||||
1996 | 41.50 | a | 40.31 | 50.26 | 58.70 | 61.68 | 74.30 | 88.83 | a | 85.94 | 74.07 | 62.23 | a | 46.83 | f | 41.68 | 61.77 | a | ||||||||
1997 | 42.07 | b | 43.89 | 52.60 | a | 57.25 | b | 71.48 | 72.87 | 82.81 | 86.52 | b | 75.43 | 62.71 | 48.53 | 41.60 | a | 61.48 | ||||||||
1998 | 42.63 | a | 46.79 | 52.74 | 57.77 | 62.81 | 74.03 | 90.53 | a | 88.00 | 82.80 | 62.81 | 48.87 | 41.19 | 62.58 | |||||||||||
1999 | 47.03 | a | 46.68 | 51.29 | 56.39 | b | 64.00 | c | 73.23 | 83.63 | a | 85.35 | 76.87 | 64.74 | 53.40 | 42.03 | 62.05 | |||||||||
2000 | 36.45 | 42.31 | 51.48 | 63.60 | 67.03 | 76.57 | 83.55 | 85.32 | 74.43 | 61.39 | 40.17 | 36.71 | 59.92 | |||||||||||||
2001 | 38.06 | 41.25 | 54.77 | 56.33 | 73.55 | 73.90 | 84.13 | 87.74 | 79.67 | 63.32 | 49.62 | a | 38.52 | 61.74 | ||||||||||||
2002 | 41.77 | 48.50 | 49.00 | 60.07 | 65.81 | 77.80 | 88.39 | 83.10 | 77.57 | 61.84 | 50.53 | 40.10 | 62.04 | |||||||||||||
2003 | 42.43 | a | 45.96 | 55.74 | 56.60 | 65.39 | 79.27 | 90.10 | 85.35 | 79.00 | 68.29 | 44.03 | 40.07 | b | 62.69 | |||||||||||
2004 | 33.17 | a | 43.85 | b | 56.39 | 61.82 | b | ----- | z | 76.03 | 87.33 | a | 86.63 | a | 72.83 | 64.13 | ----- | z | ----- | z | 64.69 | c | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.77 | 42.90 | 50.43 | 57.77 | 66.40 | 74.30 | 83.86 | 83.00 | 74.34 | 62.52 | 47.30 | 39.62 | 60.10 | |||||||||||||
S.D. | 5.43 | 4.71 | 3.56 | 3.87 | 4.13 | 3.74 | 3.35 | 3.66 | 4.17 | 3.78 | 3.67 | 3.61 | 1.74 | |||||||||||||
SKEW | -0.74 | -0.66 | 0.51 | 0.19 | 0.30 | 0.15 | -0.38 | -0.10 | -0.12 | 0.35 | -0.26 | -0.44 | 0.10 | |||||||||||||
MAX | 48.86 | 53.00 | 61.06 | 68.03 | 78.30 | 83.81 | 90.61 | 89.74 | 82.80 | 72.86 | 55.48 | 46.45 | 63.58 | |||||||||||||
MIN | 20.21 | 28.93 | 43.53 | 49.53 | 57.68 | 65.13 | 74.26 | 75.50 | 66.03 | 54.39 | 36.41 | 28.13 | 56.43 | |||||||||||||
YRS | 78 | 78 | 79 | 80 | 79 | 73 | 77 | 77 | 78 | 80 | 78 | 77 | 59 |