YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | ----- | 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 | ----- | z | 90.06 | 93.45 | 83.13 | 76.61 | 64.17 | 57.16 | 77.43 | f | ||||||
1963 | 52.73 | a | 59.54 | 64.61 | 76.93 | 81.65 | 84.63 | 92.03 | 88.77 | 84.87 | 80.42 | 63.97 | 47.32 | 73.12 | ||||||||||||
1964 | 52.68 | 44.00 | 60.71 | 73.73 | 82.58 | 86.63 | 95.84 | 91.23 | 80.93 | 75.94 | 60.00 | 52.71 | 71.41 | |||||||||||||
1965 | 56.65 | 51.50 | 53.48 | 73.60 | 79.68 | 84.50 | 90.42 | 87.23 | 82.47 | 74.61 | 67.50 | 56.87 | 71.54 | |||||||||||||
1966 | 45.26 | 50.32 | 66.61 | 71.27 | 80.26 | 85.07 | 95.00 | 83.55 | 80.50 | 71.29 | 65.83 | 51.58 | 70.54 | |||||||||||||
1967 | 56.48 | 56.04 | 69.90 | 76.00 | 79.81 | 85.40 | 87.42 | 86.29 | 79.93 | 76.26 | 61.63 | 46.68 | 71.82 | |||||||||||||
1968 | 50.81 | 52.14 | 60.35 | 68.30 | 77.13 | 91.37 | 88.65 | 88.19 | 82.53 | 75.68 | 57.37 | 54.10 | 70.55 | |||||||||||||
1969 | 57.68 | 53.64 | 51.13 | 71.37 | 79.16 | 85.07 | 94.42 | 92.58 | 81.63 | 65.68 | 60.20 | 54.68 | 70.60 | |||||||||||||
1970 | 47.32 | 57.61 | 55.87 | 68.77 | 82.16 | 87.67 | 90.55 | 90.97 | 81.00 | 67.42 | 60.60 | 58.94 | 70.74 | |||||||||||||
1971 | 54.32 | 52.93 | 63.74 | 70.80 | 79.94 | 90.63 | 90.06 | 82.00 | 79.13 | 71.68 | 61.13 | 50.52 | 70.57 | |||||||||||||
1972 | 55.26 | 59.17 | 70.35 | 76.73 | 78.03 | 89.00 | 86.97 | 86.19 | 81.40 | 71.42 | 49.10 | 49.35 | 71.08 | |||||||||||||
1973 | 43.48 | 50.89 | 58.81 | 62.83 | 77.19 | 87.93 | 89.06 | 90.42 | 80.80 | 76.52 | 66.20 | 55.29 | 69.95 | |||||||||||||
1974 | 50.84 | 57.89 | 70.00 | 73.83 | 86.35 | 89.83 | 91.87 | 84.06 | 73.43 | 70.00 | 58.03 | 48.71 | 71.24 | |||||||||||||
1975 | 50.29 | 48.07 | 60.74 | 68.63 | 78.94 | 89.17 | 85.19 | 89.42 | 79.77 | 76.45 | 62.57 | 56.06 | 70.44 | |||||||||||||
1976 | 53.55 | 63.76 | 62.58 | 72.67 | 75.84 | 88.10 | 86.90 | 89.35 | 79.97 | 65.77 | 55.03 | 53.84 | 70.61 | |||||||||||||
1977 | 44.68 | 57.50 | 61.68 | 69.77 | 81.35 | 92.37 | 93.06 | 90.00 | 88.57 | 74.94 | 64.63 | 57.23 | 72.98 | |||||||||||||
1978 | 43.84 | 42.68 | 62.74 | 77.30 | 78.68 | 89.13 | 94.10 | 87.58 | 80.03 | 73.52 | 55.87 | 47.35 | 69.40 | |||||||||||||
1979 | 38.94 | 55.29 | 60.71 | 69.73 | 76.39 | 83.50 | 92.19 | 86.55 | 84.90 | 78.19 | 54.10 | 52.26 | 69.40 | |||||||||||||
1980 | 50.13 | 54.21 | 61.06 | 69.63 | 75.68 | 95.03 | 96.65 | 91.26 | 83.27 | 71.39 | 56.80 | 58.74 | 71.99 | |||||||||||||
1981 | 54.03 | 59.29 | 59.29 | 75.43 | 78.23 | 91.43 | 90.55 | 84.03 | 80.27 | 69.19 | 64.23 | 55.97 | 71.83 | |||||||||||||
1982 | 53.19 | 49.11 | 62.68 | 71.41 | a | 78.87 | 84.10 | 89.81 | 90.39 | 85.67 | 73.77 | a | 59.70 | 47.90 | 70.55 | |||||||||||
1983 | 48.10 | 51.54 | 61.87 | 67.18 | b | 78.55 | 84.67 | 92.06 | 92.42 | 87.00 | b | 73.42 | 64.70 | 43.03 | 70.38 | |||||||||||
1984 | 48.81 | d | 59.83 | 62.37 | a | 69.64 | b | 81.37 | a | 86.41 | a | 87.97 | 85.84 | 79.57 | 66.58 | 59.13 | 51.21 | c | 69.89 | |||||||
1985 | 47.80 | a | 51.25 | 63.17 | b | 74.32 | b | 79.86 | b | 84.97 | a | 89.74 | 91.37 | a | 80.00 | a | 69.77 | 63.59 | c | 52.67 | a | 70.71 | ||||
1986 | 60.58 | 56.54 | 68.53 | a | 75.20 | 79.23 | a | 84.30 | 91.06 | 87.74 | 80.37 | 66.94 | 55.10 | 46.06 | 70.97 | |||||||||||
1987 | 46.87 | a | 52.43 | 57.90 | 69.83 | 76.10 | a | 85.20 | 89.81 | 86.19 | 79.14 | b | 72.29 | 60.43 | 48.19 | 68.70 | ||||||||||
1988 | 46.03 | 56.03 | 62.90 | 68.70 | 77.61 | 85.43 | 86.61 | 87.48 | 81.80 | 74.52 | 63.77 | 51.19 | 70.17 | |||||||||||||
1989 | 55.77 | 49.07 | 69.42 | 75.93 | 82.65 | 82.80 | 86.48 | 86.77 | 78.80 | 76.06 | 63.93 | 46.06 | 71.15 | |||||||||||||
1990 | 51.45 | 57.04 | 58.71 | 70.10 | 78.48 | 96.73 | 87.26 | 87.65 | 83.30 | 71.61 | 62.60 | 48.71 | 71.14 | |||||||||||||
1991 | 43.77 | 60.54 | 64.10 | 73.80 | 84.03 | 87.57 | 86.52 | 86.32 | 75.13 | 74.26 | 52.07 | 48.39 | 69.71 | |||||||||||||
1992 | 46.84 | 57.59 | 65.81 | 71.90 | 76.48 | 83.60 | 88.65 | 85.71 | 81.97 | 76.32 | 53.80 | 47.42 | 69.67 | |||||||||||||
1993 | 46.77 | 51.96 | 62.81 | 71.20 | 79.06 | 88.07 | 90.45 | 88.48 | 82.67 | 70.03 | 55.53 | 53.74 | 70.07 | |||||||||||||
1994 | 51.90 | 55.25 | 62.58 | 70.23 | 76.23 | 93.43 | 91.35 | 89.55 | 84.23 | 72.52 | 60.43 | 56.87 | 72.05 | |||||||||||||
1995 | 51.32 | 60.29 | 61.03 | a | 69.20 | 75.81 | 86.18 | b | 92.35 | 90.39 | 79.53 | 74.45 | 63.67 | 52.55 | 71.40 | |||||||||||
1996 | 52.77 | 58.41 | 60.52 | 73.43 | 87.32 | 90.50 | 89.48 | 85.77 | 78.10 | 71.58 | 61.48 | a | 55.35 | 72.06 | ||||||||||||
1997 | 46.23 | a | 49.39 | 67.58 | 63.71 | b | 76.00 | 86.67 | 91.52 | b | 87.23 | 83.20 | 71.74 | 56.33 | 44.74 | 68.70 | ||||||||||
1998 | 53.17 | a | 52.57 | 58.77 | a | 67.63 | 85.35 | 92.53 | 95.13 | 88.06 | 89.93 | 73.57 | a | 61.60 | 51.81 | 72.51 | ||||||||||
1999 | 54.52 | 60.64 | 59.71 | 68.50 | 76.70 | a | 86.14 | a | 89.42 | 90.19 | 79.36 | b | 74.58 | 69.37 | 50.48 | 71.63 | ||||||||||
2000 | 56.84 | 63.97 | 64.97 | 72.70 | 85.13 | 84.62 | a | 92.13 | 93.68 | 88.62 | a | 70.00 | 52.07 | a | 48.10 | b | 72.74 | |||||||||
2001 | 42.84 | 55.79 | 56.55 | 75.83 | a | 80.90 | a | 91.33 | 96.19 | 90.32 | 85.73 | 74.83 | a | 62.30 | 54.52 | 72.26 | ||||||||||
2002 | 53.13 | 53.36 | 61.94 | 74.23 | 82.68 | 92.40 | 91.77 | 93.90 | 84.67 | 67.19 | 55.97 | 48.61 | 71.65 | |||||||||||||
2003 | 55.45 | 52.75 | 65.48 | 75.23 | 82.87 | 86.23 | 94.10 | 92.29 | 81.13 | 75.97 | 60.67 | 55.42 | 73.13 | |||||||||||||
2004 | 53.29 | 50.62 | 65.97 | 68.57 | 82.52 | 87.23 | 85.94 | 83.61 | 80.40 | 69.84 | 52.37 | 52.74 | 69.42 | |||||||||||||
2005 | 54.19 | 55.11 | 60.45 | 69.90 | 77.29 | 89.63 | 90.52 | 85.42 | 85.97 | 72.00 | 65.53 | 53.68 | 71.64 | |||||||||||||
2006 | 59.39 | 58.79 | 63.13 | 76.93 | 85.61 | 92.03 | 91.90 | 87.32 | 78.43 | 72.29 | 64.10 | 46.90 | 73.07 | |||||||||||||
2007 | 41.39 | 55.79 | 65.87 | 67.55 | a | 74.68 | 83.53 | 86.74 | 91.29 | 85.60 | 79.10 | 63.57 | 50.16 | 70.44 | ||||||||||||
2008 | 50.39 | 59.10 | 65.90 | 72.10 | 79.16 | 91.40 | 85.29 | 86.71 | 80.47 | 71.71 | 63.60 | 52.84 | 71.56 | |||||||||||||
2009 | 55.06 | 63.14 | 66.23 | 72.10 | 78.13 | 87.77 | 87.94 | 90.00 | 80.41 | a | 69.10 | 64.27 | 43.26 | 71.45 | ||||||||||||
2010 | 49.61 | 44.54 | 60.68 | 71.07 | 77.19 | 91.83 | 86.00 | 90.23 | 89.37 | 77.19 | 61.97 | 54.94 | 71.22 | |||||||||||||
2011 | 51.87 | 52.96 | 70.71 | 78.03 | 80.84 | 95.47 | 96.77 | 98.00 | 86.10 | 75.39 | 60.83 | 41.87 | 74.07 | |||||||||||||
2012 | 56.32 | 52.86 | 70.58 | 79.37 | 82.32 | 91.27 | 92.84 | 92.65 | 85.90 | 73.52 | 66.87 | 53.65 | 74.84 | |||||||||||||
2013 | 48.68 | 53.32 | 65.45 | 70.27 | 81.61 | 91.63 | 87.84 | 90.87 | 86.27 | 73.71 | 56.90 | 48.23 | 71.23 | |||||||||||||
2014 | 52.03 | 53.61 | 63.58 | 73.03 | 79.81 | 88.00 | 87.74 | 90.32 | 79.37 | 76.68 | 56.87 | 50.97 | 71.00 | |||||||||||||
2015 | 43.32 | 54.82 | 62.68 | 72.93 | 74.19 | 87.27 | 91.06 | 91.13 | 89.20 | 72.55 | 60.50 | 52.55 | 71.02 | |||||||||||||
2016 | 50.13 | 61.83 | 69.00 | 72.03 | 76.94 | 89.10 | 97.35 | 89.26 | 83.67 | 80.06 | 64.43 | 50.19 | 73.67 | |||||||||||||
2017 | 50.23 | 63.75 | 72.00 | 72.90 | 79.90 | 93.00 | 94.52 | 85.26 | 82.87 | 72.03 | 66.23 | 52.32 | 73.75 | |||||||||||||
2018 | 51.97 | 58.36 | 68.52 | 71.97 | 88.48 | 94.00 | 92.97 | 90.39 | 83.63 | 68.42 | 54.90 | 50.26 | 72.82 | |||||||||||||
2019 | 51.45 | 57.00 | 60.48 | 73.00 | 76.77 | 88.07 | 95.35 | 97.61 | 90.00 | 66.16 | 56.93 | 53.35 | 72.18 | |||||||||||||
2020 | 52.52 | 51.83 | 65.52 | 71.83 | 84.84 | 92.37 | 95.55 | 95.13 | 82.17 | 73.94 | 65.53 | 53.48 | 73.72 | |||||||||||||
2021 | 49.39 | 50.07 | 64.68 | 70.50 | 79.77 | 90.60 | 88.71 | 90.19 | 88.33 | 77.74 | 65.80 | 61.71 | 73.12 | |||||||||||||
2022 | 51.65 | 52.54 | 65.97 | 77.47 | 86.65 | 91.60 | 99.13 | 90.35 | 89.10 | 71.87 | 56.60 | 51.16 | 73.67 | |||||||||||||
2023 | 53.58 | 56.93 | 65.71 | 73.43 | 81.03 | 88.40 | 96.42 | 97.23 | 90.20 | 76.32 | 63.67 | 55.58 | 74.87 | |||||||||||||
2024 | 47.35 | 61.17 | 64.39 | 73.84 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.64 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 50.76 | 55.00 | 63.41 | 72.00 | 79.97 | 88.60 | 90.99 | 89.26 | 82.84 | 72.98 | 60.62 | 51.58 | 71.47 | |||||||||||||
S.D. | 4.54 | 4.76 | 4.23 | 3.34 | 3.34 | 3.41 | 3.42 | 3.40 | 3.73 | 3.55 | 4.49 | 4.12 | 1.43 | |||||||||||||
SKEW | -0.34 | -0.25 | -0.26 | -0.17 | 0.59 | 0.27 | 0.28 | 0.40 | 0.23 | -0.20 | -0.45 | -0.12 | 0.37 | |||||||||||||
MAX | 60.58 | 63.97 | 72.00 | 79.37 | 88.48 | 96.73 | 99.13 | 98.00 | 90.20 | 80.42 | 69.37 | 61.71 | 74.87 | |||||||||||||
MIN | 38.94 | 42.68 | 51.13 | 62.83 | 74.19 | 82.80 | 85.19 | 82.00 | 73.43 | 65.68 | 49.10 | 41.87 | 68.70 | |||||||||||||
YRS | 62 | 62 | 62 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 62 | 62 | 61 |