YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | 43.46 | r | ----- | z | ----- | z |
1962 | 32.14 | b | 47.20 | 47.06 | 57.92 | 71.58 | 71.92 | 76.66 | 76.56 | 69.57 | 61.26 | 49.18 | 41.15 | 58.52 | ||||||||||||
1963 | 30.66 | 42.70 | 51.06 | 62.88 | 68.29 | 73.07 | 78.29 | 77.26 | 75.65 | q | 65.00 | 51.92 | d | 34.40 | 57.78 | a | ||||||||||
1964 | 38.94 | ----- | z | 46.52 | j | ----- | z | ----- | z | ----- | z | 79.44 | ----- | z | ----- | z | 59.07 | b | 48.22 | 38.48 | 52.83 | g | ||||
1965 | 40.92 | e | 37.44 | c | 37.78 | a | 58.50 | a | 67.37 | 72.35 | ----- | z | 74.56 | ----- | z | 58.10 | ----- | z | 43.34 | 54.49 | c | |||||
1966 | ----- | z | ----- | z | 49.79 | ----- | z | ----- | z | 74.25 | 81.05 | a | 72.73 | 67.23 | 55.79 | 50.52 | 36.44 | 60.97 | d | |||||||
1967 | 38.78 | b | 39.34 | 53.13 | 61.23 | 62.53 | 74.23 | 75.48 | 74.44 | 66.93 | 59.65 | 46.70 | 35.90 | 57.36 | ||||||||||||
1968 | 37.48 | 37.10 | 46.40 | 53.93 | 62.31 | 72.57 | 76.06 | 74.82 | 66.77 | 60.31 | 44.90 | 36.68 | 55.78 | |||||||||||||
1969 | 39.38 | a | 39.41 | 37.34 | 57.78 | 64.84 | 71.75 | 81.13 | 78.53 | 68.02 | 53.73 | 45.80 | 39.55 | 56.44 | ||||||||||||
1970 | 33.15 | 41.16 | 42.13 | a | 54.58 | 67.06 | 73.78 | 78.08 | 77.27 | 68.60 | 53.81 | 44.48 | 43.32 | a | 56.45 | |||||||||||
1971 | 37.44 | 37.52 | 45.24 | 56.00 | 64.50 | 74.92 | 77.40 | 71.29 | 67.27 | 58.92 | 47.23 | 39.24 | 56.41 | |||||||||||||
1972 | 36.40 | 41.00 | 51.94 | 61.03 | 64.08 | 73.52 | 74.21 | 73.34 | 69.33 | 58.47 | 38.50 | 34.15 | 56.33 | |||||||||||||
1973 | 31.16 | 37.54 | 46.85 | 49.67 | 62.21 | 72.87 | 76.32 | 75.13 | 66.80 | b | 60.98 | 50.35 | 38.55 | a | 55.70 | |||||||||||
1974 | 34.40 | 42.05 | 51.98 | b | 58.33 | 68.84 | 72.93 | 78.74 | 72.32 | 61.17 | 57.97 | 45.78 | 36.81 | 56.78 | ||||||||||||
1975 | 36.85 | a | 35.38 | 43.82 | 54.13 | 63.31 | 73.73 | 74.11 | 75.27 | 65.02 | 58.60 | 46.38 | 40.45 | 55.59 | ||||||||||||
1976 | 36.98 | 47.10 | 47.23 | 57.53 | 60.44 | 72.92 | 72.69 | 75.31 | 67.42 | 50.81 | 40.45 | 36.92 | 55.48 | |||||||||||||
1977 | 28.84 | 42.30 | 46.72 | b | 56.28 | a | 67.03 | a | 77.17 | 78.90 | 77.43 | a | 73.78 | a | 59.56 | 48.13 | 40.39 | 58.04 | ||||||||
1978 | 28.66 | 29.45 | 46.21 | 61.37 | 63.79 | 74.93 | 80.18 | 74.85 | 70.00 | 59.40 | b | 46.75 | 35.79 | 55.95 | ||||||||||||
1979 | 26.85 | 37.71 | 47.34 | 55.30 | 63.73 | 71.38 | 76.66 | 72.44 | 69.00 | 60.79 | 40.63 | 38.21 | 55.00 | |||||||||||||
1980 | 35.11 | 37.00 | a | 45.05 | 53.77 | 63.47 | 78.92 | 82.84 | 78.95 | 70.20 | 56.48 | 42.20 | 41.11 | 57.09 | ||||||||||||
1981 | 37.58 | 41.93 | 47.69 | 60.43 | 64.79 | 77.08 | 80.00 | 74.26 | 69.58 | 58.18 | 50.50 | 40.85 | 58.57 | |||||||||||||
1982 | 36.93 | a | 36.82 | 48.19 | 55.68 | 64.60 | 69.47 | 78.42 | 78.24 | 71.92 | 58.05 | 45.48 | 37.55 | 56.78 | ||||||||||||
1983 | 33.37 | 37.98 | 45.73 | 50.73 | 61.98 | 69.85 | 79.75 | a | 79.69 | 72.38 | 60.45 | 48.47 | 26.03 | 55.54 | ||||||||||||
1984 | 33.50 | 40.53 | 45.29 | 52.62 | 66.52 | 75.50 | 76.89 | 75.69 | 66.60 | 55.89 | 46.62 | 40.68 | 56.36 | |||||||||||||
1985 | 32.92 | 36.80 | 48.85 | 58.93 | 68.27 | 72.95 | 77.32 | 79.05 | 69.53 | 57.61 | 45.22 | 34.44 | 56.83 | |||||||||||||
1986 | 41.82 | 42.41 | 52.02 | 60.32 | 65.84 | 72.50 | 79.76 | 75.87 | 69.02 | 56.50 | 44.25 | 38.50 | 58.23 | |||||||||||||
1987 | 34.95 | 42.25 | 44.42 | 55.08 | 65.55 | 72.78 | a | 76.10 | 75.84 | 68.28 | 59.44 | 47.18 | 35.08 | 56.41 | ||||||||||||
1988 | 32.10 | 38.67 | 45.48 | 54.13 | 64.63 | 73.67 | 75.42 | 76.00 | 68.08 | 58.84 | 48.27 | 38.71 | 56.17 | |||||||||||||
1989 | 41.00 | 33.86 | 50.55 | 60.13 | 66.98 | a | 70.57 | 77.16 | 75.48 | 65.92 | 61.13 | 47.50 | 30.74 | 56.75 | ||||||||||||
1990 | 39.35 | 41.84 | 47.05 | 56.35 | 63.92 | 79.87 | 75.97 | 76.08 | 72.00 | 58.58 | 50.37 | 34.94 | 58.03 | |||||||||||||
1991 | 34.27 | 45.36 | 50.42 | a | 59.47 | 68.32 | 74.54 | b | 76.08 | 75.65 | 66.20 | 60.15 | a | 41.20 | 39.90 | 57.63 | ||||||||||
1992 | 37.33 | a | 45.93 | 50.97 | 58.13 | 63.21 | 70.93 | 76.71 | 73.50 | 70.47 | 60.68 | 43.02 | 36.58 | 57.29 | ||||||||||||
1993 | 33.94 | 37.04 | a | 46.23 | 55.68 | 64.21 | 74.48 | 79.48 | a | 76.15 | 69.02 | 55.89 | 41.95 | 40.16 | 56.18 | |||||||||||
1994 | 37.40 | 36.18 | 49.68 | 55.70 | 63.56 | 78.73 | 78.55 | 76.76 | b | 70.22 | 59.69 | 47.75 | 41.80 | a | 58.00 | |||||||||||
1995 | 39.40 | 45.12 | b | 47.65 | 55.03 | 63.53 | 72.00 | a | 78.37 | 76.53 | 69.45 | b | 58.53 | 50.31 | a | 39.24 | b | 57.93 | ||||||||
1996 | 36.71 | 43.28 | 43.77 | 57.38 | 72.63 | a | 75.58 | 77.21 | 75.23 | 66.73 | 58.15 | 46.33 | a | 39.71 | b | 57.73 | ||||||||||
1997 | 35.40 | 39.73 | 50.33 | a | 50.27 | 63.16 | 71.03 | a | 77.83 | a | 76.15 | a | 71.22 | 57.98 | 44.10 | 35.78 | a | 56.08 | ||||||||
1998 | 41.34 | b | 41.88 | 44.52 | a | 54.25 | d | 70.83 | b | 77.67 | a | 82.32 | a | 76.45 | a | 75.74 | a | 58.66 | 46.45 | 34.73 | c | 58.74 | ||||
1999 | 36.45 | 43.30 | 42.65 | 52.69 | a | 59.54 | d | 73.12 | 79.00 | b | 80.06 | 68.05 | 58.61 | 53.70 | 39.09 | b | 57.19 | |||||||||
2000 | 40.63 | 46.93 | a | 50.95 | 57.78 | 70.48 | 71.62 | d | 79.21 | 79.87 | 72.95 | 60.60 | 41.87 | d | 33.10 | 58.83 | ||||||||||
2001 | 34.45 | 41.96 | 45.87 | 60.56 | c | 66.58 | 77.31 | d | 83.22 | d | 78.46 | c | 69.37 | 60.11 | 51.25 | 40.89 | 59.17 | |||||||||
2002 | 39.15 | 39.29 | 44.12 | a | 59.21 | a | 66.21 | b | 76.69 | a | 77.38 | c | 78.14 | c | 69.87 | 55.97 | 45.06 | c | 38.81 | 57.49 | ||||||
2003 | 39.15 | 37.71 | 49.08 | 60.19 | d | 67.45 | 71.08 | 79.39 | 79.54 | c | 67.95 | 62.56 | 48.07 | 41.23 | a | 58.62 | ||||||||||
2004 | 39.38 | a | 38.19 | 53.27 | 56.30 | 69.32 | 72.75 | 75.42 | 73.60 | 69.54 | b | 59.73 | 44.57 | 38.73 | 57.57 | |||||||||||
2005 | 39.81 | 42.57 | 45.92 | 53.61 | k | 64.44 | 74.37 | 77.87 | d | 75.44 | 73.72 | a | 59.62 | a | 48.62 | a | 38.16 | 58.23 | a | |||||||
2006 | 43.15 | 40.73 | 49.90 | 62.12 | 69.56 | 76.95 | a | 80.68 | 77.34 | b | 65.90 | 58.56 | 48.85 | 38.08 | 59.32 | |||||||||||
2007 | 32.32 | 38.88 | 52.71 | 51.35 | 63.71 | 71.96 | b | 74.93 | d | 77.39 | c | 70.98 | 61.53 | 49.32 | e | 37.65 | 56.89 | |||||||||
2008 | 36.82 | a | 41.59 | 48.56 | 55.77 | 66.73 | c | 78.05 | b | 76.54 | d | 75.39 | 66.58 | 58.55 | 48.71 | a | 38.98 | a | 57.69 | |||||||
2009 | 37.79 | 45.96 | 50.73 | 55.92 | 65.00 | 74.83 | 77.93 | b | 76.48 | f | 66.75 | 54.68 | 50.66 | a | 32.81 | 55.73 | a | |||||||||
2010 | 35.05 | 34.05 | 46.97 | 57.73 | 65.31 | 79.20 | 76.16 | 78.69 | 73.15 | 61.19 | 47.70 | 41.24 | 58.04 | |||||||||||||
2011 | 35.34 | 37.16 | 51.42 | 61.33 | 67.37 | 83.27 | 85.05 | a | 85.45 | 70.60 | 59.73 | 47.77 | 35.56 | 60.00 | ||||||||||||
2012 | 41.76 | 40.78 | 56.05 | 64.02 | 71.21 | 77.88 | 81.45 | 79.45 | 70.47 | 57.53 | 52.73 | 41.00 | 61.19 | |||||||||||||
2013 | 37.82 | 39.52 | 49.32 | 53.58 | 67.47 | 78.13 | 76.98 | 78.67 | a | 73.77 | 59.40 | 45.25 | 35.81 | 57.98 | ||||||||||||
2014 | 36.11 | 37.44 | a | 46.27 | 57.92 | 66.77 | 75.29 | a | 76.03 | 78.53 | 70.57 | 61.73 | 44.25 | 41.16 | 57.67 | |||||||||||
2015 | 35.61 | 40.77 | 48.53 | 58.98 | 62.82 | 75.03 | 78.81 | 77.00 | 74.92 | 62.16 | 48.82 | 41.94 | 58.78 | |||||||||||||
2016 | 37.85 | 45.12 | a | 53.44 | 58.42 | 63.77 | 75.70 | 81.79 | 77.05 | 70.88 | 64.06 | 53.30 | 37.97 | 59.95 | ||||||||||||
2017 | 38.42 | 47.73 | 54.05 | 58.33 | 64.94 | 76.12 | 79.56 | 74.42 | 69.92 | 59.45 | 51.88 | 39.52 | 59.53 | |||||||||||||
2018 | 36.08 | 40.66 | 52.19 | 55.35 | 74.94 | 79.75 | 81.16 | 79.27 | 70.40 | 57.08 | 43.85 | 38.39 | 59.09 | |||||||||||||
2019 | 38.79 | 40.32 | 45.71 | 58.32 | 64.00 | 73.93 | 80.11 | 82.37 | 76.68 | 53.79 | 43.83 | 41.63 | 58.29 | |||||||||||||
2020 | 40.74 | 37.83 | 52.34 | 56.10 | 68.24 | 77.85 | 83.24 | 81.03 | 67.97 | 58.50 | a | 52.12 | 39.92 | 59.66 | ||||||||||||
2021 | 37.66 | 32.12 | 50.47 | 55.53 | 65.42 | 76.70 | 77.10 | 78.89 | 75.52 | 62.81 | 50.42 | 48.68 | 59.28 | |||||||||||||
2022 | 35.40 | 35.27 | 47.69 | 60.38 | 71.44 | 78.03 | 84.45 | 79.13 | 73.58 | 59.52 | 44.30 | 38.90 | 59.01 | |||||||||||||
2023 | 41.08 | 41.88 | 48.50 | 55.87 | 66.73 | 74.52 | 81.21 | 82.61 | 75.42 | 61.19 | 49.60 | 42.89 | 60.12 | |||||||||||||
2024 | 33.92 | 46.36 | 49.98 | a | 57.40 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.42 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.52 | 40.22 | 48.11 | 57.02 | 65.96 | 74.70 | 78.46 | 76.88 | 69.74 | 58.90 | 47.04 | 38.36 | 57.63 | |||||||||||||
S.D. | 3.44 | 3.86 | 3.63 | 3.16 | 3.06 | 2.85 | 2.60 | 2.66 | 3.01 | 2.52 | 3.41 | 3.39 | 1.40 | |||||||||||||
SKEW | -0.54 | -0.12 | -0.51 | -0.16 | 0.62 | 0.51 | 0.40 | 0.54 | 0.17 | -0.54 | -0.23 | -0.55 | 0.26 | |||||||||||||
MAX | 43.15 | 47.73 | 56.05 | 64.02 | 74.94 | 83.27 | 85.05 | 85.45 | 76.68 | 65.00 | 53.70 | 48.68 | 61.19 | |||||||||||||
MIN | 26.85 | 29.45 | 37.34 | 49.67 | 59.54 | 69.47 | 72.69 | 71.29 | 61.17 | 50.81 | 38.50 | 26.03 | 55.00 | |||||||||||||
YRS | 62 | 61 | 62 | 59 | 60 | 61 | 61 | 60 | 59 | 62 | 61 | 62 | 56 |