YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.58 | 61.63 | 48.71 | 62.31 | i | |||
1938 | 50.52 | ----- | z | 68.61 | 75.03 | 85.29 | 89.87 | 90.94 | 94.42 | 88.40 | 79.81 | 65.50 | 58.94 | 77.03 | a | |||||||||||
1939 | 56.81 | 56.93 | 70.39 | 78.47 | 84.65 | 94.57 | 93.77 | 90.97 | 89.90 | 78.03 | 61.87 | ----- | z | 77.85 | a | |||||||||||
1940 | ----- | z | 67.17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.17 | k | |
1941 | ----- | z | ----- | z | 60.23 | 73.48 | a | 78.39 | 84.24 | a | 88.71 | 90.84 | 79.69 | a | 73.52 | 65.34 | a | 57.40 | a | 75.18 | b | |||||
1942 | 54.63 | a | 58.71 | 69.84 | 73.40 | 84.65 | 88.40 | 90.97 | 87.87 | 80.30 | 73.68 | 74.97 | 53.32 | 74.23 | ||||||||||||
1943 | 48.30 | a | 58.18 | 59.32 | 71.80 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.40 | h | |||
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 | 80.29 | 62.00 | b | 59.82 | c | 67.37 | i | |
1947 | 52.36 | c | 54.54 | 60.68 | 73.14 | a | 81.58 | 92.03 | 93.87 | ----- | z | ----- | z | 81.71 | 59.57 | 58.80 | a | 70.83 | b | |||||||
1948 | 49.90 | 55.24 | 61.35 | 81.93 | 84.84 | 93.20 | 92.52 | 93.52 | 88.50 | 75.90 | 64.13 | 61.35 | 75.20 | |||||||||||||
1949 | 42.77 | 57.25 | 68.42 | 70.26 | g | 82.10 | a | 90.20 | 93.29 | 90.65 | 85.17 | a | 73.48 | 73.60 | 56.56 | d | 73.95 | a | ||||||||
1950 | 62.00 | 65.89 | 69.16 | 77.57 | 83.58 | 92.47 | 89.87 | 91.63 | a | 80.50 | 81.26 | 70.63 | 61.61 | 77.18 | ||||||||||||
1951 | 55.52 | 62.75 | 64.45 | 74.03 | 86.84 | 95.33 | 95.65 | 92.97 | a | 86.90 | 79.55 | 64.79 | a | 58.81 | 76.47 | |||||||||||
1952 | 60.65 | 61.76 | 65.35 | 73.83 | a | 85.84 | 94.90 | 91.42 | 95.80 | a | 84.57 | 76.74 | 60.10 | 58.00 | 75.75 | |||||||||||
1953 | 65.94 | 60.79 | 71.71 | 75.29 | b | 87.80 | f | 97.17 | 95.35 | 91.29 | 90.17 | 76.61 | 65.63 | 52.19 | 76.56 | a | ||||||||||
1954 | 59.06 | 70.07 | 65.94 | 80.63 | 77.94 | 91.70 | 96.23 | a | 92.87 | 90.97 | 78.37 | a | 66.69 | d | 59.44 | m | 79.13 | a | ||||||||
1955 | 53.84 | 60.83 | e | 77.15 | k | ----- | z | 83.19 | d | 90.93 | 89.55 | 91.65 | 85.31 | a | 76.57 | a | 64.46 | d | 62.03 | 75.83 | b | |||||
1956 | 62.04 | f | 54.21 | 73.90 | 76.90 | 89.68 | 94.93 | 93.97 | 92.00 | 91.93 | a | 77.97 | b | 66.88 | e | 62.57 | c | 79.54 | a | |||||||
1957 | 59.65 | 63.59 | a | 65.58 | 69.93 | 77.71 | 92.15 | d | 94.90 | 92.10 | 83.73 | 70.97 | 56.73 | 60.94 | 74.00 | |||||||||||
1958 | 51.17 | a | 54.29 | 55.77 | 70.67 | 84.42 | 93.90 | 95.35 | 94.42 | 81.10 | 71.00 | c | 64.69 | a | 56.77 | e | 72.80 | |||||||||
1959 | 57.77 | 57.12 | c | 70.08 | f | 78.33 | c | 83.48 | 91.63 | k | 90.69 | b | 92.10 | 88.77 | 75.19 | 64.50 | h | 55.81 | d | 75.47 | c | |||||
1960 | 51.42 | 53.28 | d | 65.91 | i | 80.36 | b | 86.13 | 94.70 | 89.65 | 92.22 | h | 87.67 | 75.71 | c | 68.14 | i | 47.26 | 74.02 | c | ||||||
1961 | 52.45 | 56.93 | 66.25 | c | 79.46 | b | 89.00 | 91.50 | d | 88.55 | 89.71 | 84.73 | 77.90 | 53.33 | l | 53.56 | d | 75.46 | a | |||||||
1962 | 53.74 | 67.00 | f | 65.06 | 77.46 | d | 91.00 | 88.44 | e | 92.42 | ----- | z | ----- | z | 79.27 | a | 67.11 | c | 61.52 | f | 76.81 | d | ||||
1963 | 51.19 | 62.96 | 71.13 | ----- | z | 87.03 | 90.00 | 93.97 | 91.87 | 85.13 | 80.77 | 65.07 | 50.39 | 75.41 | a | |||||||||||
1964 | 56.29 | 51.23 | c | 69.35 | 79.03 | 87.93 | d | 91.82 | b | 94.79 | c | 92.90 | 81.07 | 77.03 | 63.86 | a | 55.29 | 75.05 | ||||||||
1965 | 60.39 | c | 55.04 | 57.42 | 78.53 | 83.32 | 89.23 | 93.39 | 90.61 | 85.07 | 76.97 | 71.13 | 58.52 | 74.97 | ||||||||||||
1966 | 47.42 | 54.00 | 69.48 | 73.13 | 80.90 | 88.70 | 95.23 | 85.71 | 81.20 | 74.23 | 70.03 | a | 55.86 | b | 72.99 | |||||||||||
1967 | 59.42 | 59.11 | 73.52 | 79.00 | 83.65 | 89.07 | 89.26 | 89.48 | 80.97 | 78.13 | 64.59 | a | 51.29 | 74.79 | ||||||||||||
1968 | 52.74 | 54.31 | 62.52 | 71.32 | b | 82.53 | a | 92.31 | a | 88.29 | 87.39 | 84.17 | 79.10 | a | 61.10 | 57.27 | a | 72.75 | ||||||||
1969 | 60.42 | 57.22 | a | 54.23 | 75.17 | 82.32 | 91.27 | 96.35 | 94.13 | 80.33 | 67.68 | 63.13 | 58.61 | 73.41 | ||||||||||||
1970 | 52.13 | 60.29 | 59.03 | 73.83 | 85.68 | 89.40 | 94.10 | 92.65 | 82.63 | 71.26 | 63.70 | 62.19 | 73.91 | |||||||||||||
1971 | 58.39 | 57.68 | 67.74 | 74.83 | 84.23 | a | 92.43 | 92.74 | 81.81 | 80.80 | 73.19 | 65.00 | 55.23 | 73.67 | ||||||||||||
1972 | 57.94 | 62.38 | 74.29 | 81.63 | 80.71 | 89.67 | 86.90 | 85.68 | 82.57 | 73.23 | 53.20 | 52.81 | 73.42 | |||||||||||||
1973 | 45.71 | 52.32 | 63.10 | 67.83 | 81.61 | 90.50 | 90.55 | 91.23 | 81.63 | 79.58 | 69.20 | 60.42 | 72.81 | |||||||||||||
1974 | 55.32 | 62.61 | 73.94 | 78.33 | 87.81 | 91.97 | 92.10 | 85.23 | 72.93 | 71.19 | 61.13 | 52.61 | 73.76 | |||||||||||||
1975 | 53.65 | 54.04 | 64.32 | 72.83 | 81.90 | 92.47 | 84.42 | 87.29 | 78.67 | 77.90 | 65.97 | 57.90 | 72.61 | |||||||||||||
1976 | 56.23 | 67.79 | 67.87 | 76.07 | 79.68 | 90.67 | 85.23 | 91.55 | 80.47 | 67.77 | 55.63 | 55.48 | 72.87 | |||||||||||||
1977 | 47.45 | 59.89 | 66.06 | 71.17 | 83.45 | 92.77 | 93.45 | 91.23 | 90.77 | 76.48 | 67.47 | 59.55 | 74.98 | |||||||||||||
1978 | 44.61 | 45.18 | 66.97 | 81.70 | 83.65 | 91.10 | 95.23 | 90.40 | a | 81.67 | 75.16 | 59.23 | 52.65 | 72.29 | ||||||||||||
1979 | 42.61 | 55.25 | 63.03 | 74.47 | 79.94 | 87.20 | 90.97 | 86.58 | 85.77 | 81.03 | 58.10 | 55.58 | 71.71 | |||||||||||||
1980 | 53.32 | 57.28 | 65.90 | 73.33 | 80.58 | 96.93 | 96.74 | 92.29 | 83.60 | 73.55 | 59.10 | 60.10 | 74.39 | |||||||||||||
1981 | 54.90 | 61.79 | 63.10 | 76.40 | 82.03 | 93.40 | 92.03 | 85.55 | 81.73 | 71.58 | 68.00 | 59.29 | 74.15 | |||||||||||||
1982 | 53.32 | 54.36 | 67.45 | 72.37 | 80.81 | 87.13 | 91.94 | ----- | z | 87.37 | 75.19 | 60.67 | 49.45 | 70.91 | a | |||||||||||
1983 | 47.84 | 55.61 | 65.35 | 68.80 | 83.10 | 87.76 | a | 92.87 | a | 92.16 | 87.63 | 74.97 | 63.93 | 43.71 | 71.98 | |||||||||||
1984 | 51.16 | 62.00 | 65.13 | 73.87 | 84.94 | 87.97 | 90.74 | 87.84 | 81.07 | 69.19 | 61.23 | 55.32 | 72.54 | |||||||||||||
1985 | 49.58 | 54.43 | 66.94 | 78.33 | 84.19 | 87.13 | 93.03 | 95.10 | 84.17 | 72.39 | 66.30 | 53.52 | 73.76 | |||||||||||||
1986 | 61.26 | 59.93 | 71.13 | 79.70 | 84.10 | 86.43 | 93.68 | 89.35 | 81.87 | 70.84 | 60.13 | 51.00 | 74.12 | |||||||||||||
1987 | 51.87 | 57.36 | 62.58 | 74.30 | 81.97 | 88.63 | 92.29 | 91.23 | 81.57 | 77.23 | 64.87 | 53.52 | 73.12 | |||||||||||||
1988 | 48.52 | 59.90 | 69.00 | 74.83 | 82.58 | 90.20 | 90.39 | 92.03 | 84.70 | 77.84 | 69.13 | 56.32 | 74.62 | |||||||||||||
1989 | 59.90 | 53.32 | 72.32 | 80.50 | 88.84 | 87.23 | 93.45 | 89.06 | 81.60 | 80.42 | 68.37 | 50.42 | 75.45 | |||||||||||||
1990 | 58.61 | 63.50 | 64.26 | 75.50 | 83.52 | 101.27 | 90.16 | 89.68 | 86.53 | 77.32 | 67.50 | 55.35 | 76.10 | |||||||||||||
1991 | 48.81 | 64.50 | 70.03 | 79.90 | 90.39 | 91.87 | 90.45 | 90.87 | 78.03 | 78.52 | 56.43 | 52.81 | 74.38 | |||||||||||||
1992 | 50.19 | 61.66 | 71.03 | 76.23 | 79.35 | 88.17 | 94.32 | 88.58 | 86.33 | 80.68 | 59.80 | 53.94 | 74.19 | |||||||||||||
1993 | 50.77 | 55.96 | 66.00 | 75.70 | 85.16 | 93.93 | 94.71 | 94.39 | 85.83 | 74.84 | 60.10 | 59.35 | 74.73 | |||||||||||||
1994 | 56.32 | 59.50 | 68.58 | 76.30 | 81.81 | 98.73 | 97.19 | 92.77 | a | 87.63 | 77.52 | 65.17 | 60.06 | 76.80 | ||||||||||||
1995 | 55.16 | 63.86 | 65.55 | 75.37 | 82.65 | 92.10 | 98.39 | 92.68 | 82.40 | 78.61 | 67.87 | 57.74 | 76.03 | |||||||||||||
1996 | 57.58 | 64.00 | 66.03 | 78.33 | 93.48 | 93.37 | 92.77 | 89.42 | 84.03 | 77.65 | 65.80 | 60.87 | 76.94 | |||||||||||||
1997 | 51.29 | 51.79 | 71.68 | 68.13 | 80.68 | 88.17 | 95.42 | 91.68 | 89.50 | 76.32 | 62.00 | 50.35 | 73.08 | |||||||||||||
1998 | 59.94 | 57.39 | 63.48 | 74.80 | 93.03 | 100.00 | 100.48 | 90.45 | 92.30 | 78.55 | 66.23 | 56.13 | 77.73 | |||||||||||||
1999 | 60.42 | 67.50 | 63.71 | 75.57 | 80.87 | 88.23 | 93.26 | 96.58 | 82.63 | 77.23 | 72.77 | 55.87 | 76.22 | |||||||||||||
2000 | 60.55 | 68.90 | 70.10 | 77.83 | 91.32 | 86.87 | 96.29 | 96.10 | 92.63 | 74.94 | 54.90 | 49.45 | 76.66 | |||||||||||||
2001 | 48.16 | 59.75 | 58.90 | 79.20 | 85.10 | 92.77 | 96.48 | 90.90 | 84.03 | 75.84 | 63.30 | 56.42 | 74.24 | |||||||||||||
2002 | 56.03 | 55.89 | 64.77 | 75.10 | 84.58 | 91.50 | 90.20 | a | 91.97 | 84.57 | 68.50 | a | 58.13 | 53.68 | c | 72.91 | ||||||||||
2003 | 57.79 | b | 56.37 | a | 67.97 | 78.60 | 84.55 | 87.27 | 93.65 | 91.94 | 80.60 | 77.26 | 63.00 | 58.03 | 74.75 | |||||||||||
2004 | 54.03 | 53.07 | 66.77 | 71.63 | 85.35 | 88.87 | 88.94 | 85.90 | 80.07 | 73.03 | 55.00 | 54.39 | 71.42 | |||||||||||||
2005 | 55.52 | 54.96 | 63.81 | 74.10 | 78.90 | 91.67 | 90.26 | 86.16 | 87.37 | 72.81 | 66.60 | 56.06 | 73.18 | |||||||||||||
2006 | 61.87 | 60.07 | 65.97 | 80.40 | 87.77 | 93.03 | 92.84 | 88.81 | 78.43 | 72.32 | 66.40 | 53.10 | 75.08 | |||||||||||||
2007 | 43.84 | 58.21 | 67.90 | 68.87 | 76.35 | 86.57 | 88.68 | 90.26 | 84.73 | 79.23 | 64.23 | 54.97 | 71.99 | |||||||||||||
2008 | 53.71 | 61.83 | 67.00 | 75.10 | 84.00 | 94.70 | 88.35 | 87.90 | 79.47 | 74.10 | 66.17 | 56.29 | 74.05 | |||||||||||||
2009 | 57.58 | 65.18 | 69.52 | 75.50 | 82.74 | 91.20 | 91.45 | 92.13 | 81.57 | 71.19 | 67.47 | 47.48 | 74.42 | |||||||||||||
2010 | 51.48 | 48.04 | 63.55 | 73.47 | 80.81 | 93.57 | 85.90 | 92.13 | 86.70 | 76.42 | 65.33 | 59.55 | 73.08 | |||||||||||||
2011 | 55.45 | 56.68 | 73.42 | 82.17 | 85.32 | 99.60 | 97.52 | 98.03 | 85.43 | 76.81 | 64.50 | 45.97 | 76.74 | |||||||||||||
2012 | 60.00 | 56.90 | 72.48 | 82.83 | 86.97 | 94.20 | 93.16 | 92.19 | 84.77 | 73.97 | 69.43 | 57.77 | 77.06 | |||||||||||||
2013 | 52.68 | 57.11 | 68.19 | 74.80 | 84.35 | 92.93 | 89.61 | 91.84 | 86.00 | 75.81 | 60.07 | 52.39 | 73.81 | |||||||||||||
2014 | 55.65 | 57.39 | 66.74 | 75.97 | 83.19 | 90.87 | 90.00 | 90.71 | 79.60 | 77.52 | 58.20 | 55.65 | 73.46 | |||||||||||||
2015 | 48.13 | 58.21 | 64.42 | 75.57 | 77.48 | 88.70 | 91.45 | 90.55 | 86.90 | 74.06 | 63.60 | 57.42 | 73.04 | |||||||||||||
2016 | 52.94 | 63.31 | 71.55 | 74.90 | 80.68 | 89.80 | 97.19 | 88.39 | 81.30 | 79.68 | 66.63 | 54.68 | 75.09 | |||||||||||||
2017 | 54.77 | 65.86 | 74.16 | 76.33 | 83.13 | 93.13 | 92.35 | 85.42 | 82.77 | 74.58 | 69.17 | 56.77 | 75.70 | |||||||||||||
2018 | 54.77 | 60.89 | 69.68 | 75.73 | 91.71 | 95.60 | 93.03 | 90.16 | 81.30 | 69.10 | 58.10 | 52.06 | 74.35 | |||||||||||||
2019 | 55.48 | 60.57 | 61.52 | 74.97 | 80.35 | 89.60 | 93.68 | 94.97 | 87.13 | 71.00 | 59.93 | 58.42 | 73.97 | |||||||||||||
2020 | 57.26 | 54.83 | 67.03 | 75.23 | 87.58 | 92.57 | 96.90 | 95.06 | 82.40 | 74.94 | 68.70 | 56.87 | 75.78 | |||||||||||||
2021 | 50.52 | 50.36 | 67.65 | 71.27 | 80.06 | 90.10 | 87.52 | 87.84 | 87.33 | 78.71 | 66.70 | 66.42 | 73.71 | |||||||||||||
2022 | 53.32 | 54.14 | 66.87 | 79.23 | 88.84 | 92.47 | 97.32 | 89.35 | 85.90 | 71.81 | 58.13 | 53.61 | 74.25 | |||||||||||||
2023 | 57.42 | 58.18 | 68.23 | 74.07 | 82.35 | 92.30 | 95.10 | 95.65 | 88.93 | 74.03 | 63.63 | 57.94 | 75.65 | |||||||||||||
2024 | 50.06 | 62.45 | 66.48 | 75.56 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.67 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 54.08 | 58.59 | 66.62 | 75.72 | 83.93 | 91.50 | 92.55 | 90.86 | 84.24 | 75.65 | 63.96 | 55.71 | 74.34 | |||||||||||||
S.D. | 4.83 | 4.78 | 4.26 | 3.40 | 3.62 | 3.28 | 3.14 | 3.02 | 3.76 | 3.36 | 4.47 | 4.12 | 1.47 | |||||||||||||
SKEW | -0.21 | 0.07 | -0.46 | -0.08 | 0.51 | 0.60 | -0.18 | -0.32 | 0.07 | -0.41 | -0.12 | -0.38 | 0.30 | |||||||||||||
MAX | 65.94 | 70.07 | 74.29 | 82.83 | 93.48 | 101.27 | 100.48 | 98.03 | 92.63 | 81.71 | 74.97 | 66.42 | 77.73 | |||||||||||||
MIN | 42.61 | 45.18 | 54.23 | 67.83 | 76.35 | 84.24 | 84.42 | 81.81 | 72.93 | 67.68 | 53.20 | 43.71 | 71.42 | |||||||||||||
YRS | 81 | 81 | 80 | 79 | 80 | 80 | 81 | 77 | 79 | 83 | 80 | 80 | 66 |