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 | 76.76 | 77.37 | 69.85 | 61.16 | 49.62 | 42.42 | 62.86 | f | ||||||
1963 | 34.00 | a | 43.71 | 48.55 | 60.35 | 67.37 | 72.18 | 78.60 | 75.85 | 70.73 | 64.03 | 47.98 | 33.16 | 58.04 | ||||||||||||
1964 | 35.95 | 31.16 | 43.37 | 56.30 | 66.71 | 72.42 | 80.45 | 76.82 | 68.37 | 59.13 | 46.40 | 38.53 | 56.30 | |||||||||||||
1965 | 41.35 | 36.64 | 38.77 | 58.15 | 65.74 | 71.88 | 77.06 | 73.69 | 67.48 | 57.85 | 51.85 | 42.32 | 56.90 | |||||||||||||
1966 | 30.35 | 35.61 | 49.37 | 55.52 | 64.90 | 72.38 | 80.45 | 72.21 | 67.97 | 55.74 | 49.73 | 36.16 | 55.87 | |||||||||||||
1967 | 39.87 | 39.59 | 53.32 | 60.65 | 63.11 | 72.52 | 75.31 | 73.15 | 66.68 | 59.03 | 46.47 | 34.84 | 57.04 | |||||||||||||
1968 | 38.47 | 38.74 | 46.65 | 53.73 | 62.55 | 75.12 | 75.73 | 75.26 | 67.53 | 59.73 | 45.10 | 37.92 | 56.38 | |||||||||||||
1969 | 41.21 | 40.59 | 38.98 | 57.33 | 65.52 | 71.03 | 80.08 | 78.35 | 69.47 | 53.44 | 45.30 | 40.24 | 56.80 | |||||||||||||
1970 | 33.85 | a | 42.70 | 42.26 | 53.55 | 66.37 | 72.47 | 77.31 | 76.56 | 67.52 | 52.77 | 45.65 | 42.50 | 56.13 | ||||||||||||
1971 | 37.95 | 38.09 | 46.24 | 55.33 | 63.61 | 75.52 | 76.37 | 70.60 | 65.97 | 57.63 | 47.50 | 38.79 | 56.13 | |||||||||||||
1972 | 37.98 | 41.81 | 52.42 | 59.80 | 64.21 | 74.30 | 74.42 | 73.16 | 68.82 | 57.81 | 38.28 | 35.19 | 56.52 | |||||||||||||
1973 | 32.81 | 38.27 | 46.15 | 49.27 | 62.39 | 72.77 | 75.60 | 75.45 | 67.27 | 60.85 | 49.75 | 39.19 | 55.81 | |||||||||||||
1974 | 36.48 | 41.07 | 53.35 | 57.15 | 70.34 | 74.02 | 77.63 | 72.10 | 61.97 | 58.06 | 45.45 | 35.95 | 56.96 | |||||||||||||
1975 | 37.11 | 35.82 | 44.79 | 53.23 | 63.19 | 73.32 | 73.40 | 75.18 | 65.57 | 59.56 | 46.02 | 40.56 | 55.65 | |||||||||||||
1976 | 36.66 | 47.64 | 47.42 | 58.60 | 61.45 | 72.95 | 74.23 | 74.73 | 67.50 | 51.29 | 41.07 | 37.56 | 55.92 | |||||||||||||
1977 | 31.37 | 42.61 | 46.24 | 56.75 | 67.98 | 76.67 | 78.60 | 77.06 | 72.42 | 60.11 | 48.38 | 41.63 | 58.32 | |||||||||||||
1978 | 31.55 | 32.71 | 47.73 | 60.25 | 64.60 | 75.48 | 79.70 | a | 74.11 | 67.58 | 58.45 | 46.08 | 34.26 | 56.04 | ||||||||||||
1979 | 27.69 | 39.95 | 46.39 | 55.80 | 62.82 | 70.34 | a | 77.89 | 72.98 | 69.97 | 60.77 | 41.17 | 38.52 | 55.36 | ||||||||||||
1980 | 36.81 | 40.40 | 45.19 | 53.66 | a | 62.27 | a | 78.93 | 80.95 | 76.69 | 69.32 | 56.00 | 43.12 | 43.26 | 57.22 | |||||||||||
1981 | 39.50 | 42.14 | 46.77 | 59.92 | 63.80 | a | 75.75 | 77.42 | 72.81 | 67.73 | 56.81 | 49.72 | 40.44 | 57.73 | ||||||||||||
1982 | 37.44 | 35.72 | c | 47.52 | a | 55.14 | i | 63.56 | d | 70.61 | c | 76.03 | 75.78 | a | 70.74 | e | 57.27 | i | 45.33 | i | 34.90 | k | 59.67 | d | ||
1983 | 35.29 | j | 37.24 | g | 46.35 | k | 50.00 | h | 61.31 | j | 69.67 | j | 76.98 | e | 77.00 | e | 73.23 | h | 60.23 | k | 49.75 | n | 29.37 | 61.12 | i | |
1984 | 33.74 | d | 41.09 | a | 45.20 | a | 52.50 | d | 65.43 | d | 73.42 | f | 74.39 | 73.45 | a | 65.10 | a | 54.50 | b | 45.38 | a | 38.39 | d | 53.56 | a | |
1985 | 33.84 | b | 36.59 | 48.00 | d | 57.88 | e | 64.11 | c | 71.31 | d | 74.60 | a | 76.34 | b | 66.76 | a | 56.05 | 46.65 | c | 35.65 | a | 55.65 | |||
1986 | 42.47 | a | 41.11 | 50.88 | a | 58.08 | 63.43 | c | 70.98 | 76.55 | 73.68 | 67.52 | 54.66 | 41.52 | 35.21 | 56.34 | ||||||||||
1987 | 33.20 | a | 40.38 | 41.92 | a | 51.52 | 62.41 | b | 71.63 | 75.48 | a | 73.45 | 65.61 | b | 55.79 | 43.98 | 33.27 | 54.05 | ||||||||
1988 | 31.31 | 37.53 | 44.02 | 51.78 | 61.85 | 72.03 | 74.44 | 75.02 | 67.25 | 58.90 | 47.60 | 36.68 | 54.87 | |||||||||||||
1989 | 39.89 | 35.82 | 51.06 | 58.83 | 66.92 | 69.37 | 71.77 | 73.89 | 65.32 | 58.37 | 46.67 | 31.60 | 55.79 | |||||||||||||
1990 | 36.68 | 40.96 | 45.63 | 55.20 | 62.90 | 79.71 | b | 74.34 | 73.74 | 70.38 | 56.14 | b | 47.57 | 33.23 | 56.37 | |||||||||||
1991 | 32.16 | 43.54 | 48.21 | 56.72 | 67.79 | 73.43 | 74.45 | 74.02 | 64.00 | 57.60 | 40.38 | a | 37.50 | 55.82 | ||||||||||||
1992 | 35.60 | 43.05 | 49.71 | 57.32 | 63.10 | 69.48 | a | 75.41 | b | 72.39 | 67.88 | 58.95 | 40.60 | a | 34.82 | 55.69 | ||||||||||
1993 | 34.71 | 37.57 | 46.50 | 54.63 | 64.50 | 73.03 | 77.58 | 75.27 | a | 67.23 | 55.21 | 40.93 | 38.76 | 55.49 | ||||||||||||
1994 | 36.28 | b | 38.52 | 47.81 | 54.57 | 63.87 | 77.50 | 77.06 | 75.58 | a | 68.91 | a | 57.52 | 46.10 | 41.77 | a | 57.12 | |||||||||
1995 | 38.37 | 44.30 | 46.45 | a | 53.41 | a | 61.69 | 71.61 | b | 77.07 | c | 76.95 | a | 66.29 | b | 57.14 | b | 47.90 | 39.13 | 56.69 | ||||||
1996 | 36.11 | 42.69 | 44.19 | 55.74 | a | 70.74 | 75.55 | 77.11 | 73.92 | 65.55 | a | 57.29 | b | 46.07 | a | 39.29 | 57.02 | |||||||||
1997 | 34.55 | c | 36.54 | b | 49.70 | a | 49.75 | b | 62.63 | a | 72.97 | a | 77.62 | b | 74.58 | 70.30 | 56.88 | a | 43.22 | 33.40 | 55.18 | |||||
1998 | 39.81 | b | 40.13 | a | 44.05 | a | 52.97 | a | 68.56 | 75.86 | a | 80.21 | 74.55 | a | 73.71 | a | 60.52 | a | 49.05 | 38.68 | a | 58.17 | ||||
1999 | 40.31 | 45.23 | 46.42 | 53.58 | 62.78 | a | 72.86 | a | 77.13 | a | 76.37 | 66.19 | c | 57.89 | 50.84 | a | 37.61 | 57.27 | ||||||||
2000 | 40.56 | 46.69 | 48.82 | 56.72 | 68.73 | 72.69 | a | 78.52 | b | 78.90 | a | 71.79 | a | 58.11 | 39.72 | a | 34.69 | b | 58.00 | |||||||
2001 | 33.45 | 42.43 | 45.59 | b | 59.83 | a | 67.29 | b | 75.84 | a | 81.66 | 76.44 | 69.87 | 57.98 | a | 49.68 | 40.37 | 58.37 | ||||||||
2002 | 39.47 | 38.02 | a | 44.55 | 58.72 | 65.66 | 77.53 | 78.00 | 79.16 | 70.57 | 55.42 | 43.88 | 36.81 | 57.32 | ||||||||||||
2003 | 40.42 | 38.71 | 49.82 | 58.00 | 66.92 | 72.73 | 80.02 | 78.35 | 67.15 | 60.60 | 46.95 | 39.69 | 58.28 | |||||||||||||
2004 | 38.81 | 36.60 | 53.15 | 56.10 | 67.44 | 73.12 | 74.19 | 71.81 | 67.62 | 57.21 | 42.77 | 39.05 | 56.49 | |||||||||||||
2005 | 41.85 | 44.00 | 46.89 | 55.23 | 64.13 | 75.12 | a | 76.21 | 73.63 | 71.77 | 58.23 | 48.32 | 37.58 | 57.75 | ||||||||||||
2006 | 42.02 | 40.45 | 48.47 | 59.83 | 69.34 | 76.73 | 78.55 | 75.45 | 65.35 | 58.05 | 48.07 | 34.33 | a | 58.05 | ||||||||||||
2007 | 29.90 | 39.50 | a | 50.76 | 51.95 | b | 61.95 | 70.02 | 73.98 | 77.77 | 71.52 | 61.39 | 46.82 | 37.18 | 56.06 | |||||||||||
2008 | 35.06 | 41.47 | 48.06 | 54.47 | 63.74 | 75.30 | 74.15 | 74.15 | 66.78 | 56.77 | 47.25 | 37.79 | 56.25 | |||||||||||||
2009 | 37.52 | 45.30 | 49.37 | 54.45 | 63.92 | 74.05 | 75.40 | 76.10 | 66.29 | a | 54.81 | 48.13 | 30.95 | 56.36 | ||||||||||||
2010 | 35.16 | 33.77 | 45.81 | 55.77 | 63.02 | 77.28 | 75.03 | 76.73 | 73.82 | 60.92 | a | 45.53 | 40.47 | 56.94 | ||||||||||||
2011 | 34.74 | 35.23 | 52.02 | 59.47 | 64.15 | 79.10 | 82.31 | 83.16 | 70.37 | 58.87 | a | 46.00 | 32.71 | 58.18 | ||||||||||||
2012 | 40.35 | 39.22 | 53.06 | 62.05 | 67.13 | 76.72 | 78.97 | 78.06 | 70.03 | 57.76 | 49.83 | 38.61 | 59.32 | |||||||||||||
2013 | 34.94 | 37.86 | 47.42 | 52.02 | 65.15 | 76.70 | 75.50 | 76.97 | 72.42 | 56.94 | 43.47 | 35.15 | 56.21 | |||||||||||||
2014 | 35.16 | 38.39 | 45.66 | 55.25 | 64.03 | 74.10 | 75.52 | 76.11 | 68.63 | 60.94 | 41.52 | 37.95 | 56.11 | |||||||||||||
2015 | 32.77 | 39.86 | 46.87 | 56.05 | 61.21 | 74.25 | 78.10 | 76.98 | 74.98 | 60.47 | 46.00 | 39.95 | 57.29 | |||||||||||||
2016 | 36.74 | 44.33 | 51.35 | 55.40 | 61.81 | 74.78 | 81.26 | 75.27 | 70.13 | 63.21 | 49.63 | 36.29 | 58.35 | |||||||||||||
2017 | 37.18 | 46.84 | 53.66 | 57.35 | 63.15 | 76.32 | 79.37 | 73.15 | 69.12 | 57.85 | 51.15 | 37.37 | 58.54 | |||||||||||||
2018 | 35.15 | 40.98 | 50.82 | 53.75 | 71.45 | 77.92 | 78.58 | 76.31 | 69.77 | 56.44 | 41.45 | 36.76 | 57.45 | |||||||||||||
2019 | 37.21 | 40.62 | 44.97 | 56.27 | 62.00 | 72.70 | 79.39 | 81.61 | 75.88 | 52.08 | 42.45 | 40.00 | 57.10 | |||||||||||||
2020 | 38.68 | 37.26 | 51.18 | 54.48 | 66.89 | 76.35 | 80.45 | 79.34 | 66.00 | 56.05 | 50.15 | 37.94 | 57.90 | |||||||||||||
2021 | 36.06 | 34.18 | 48.08 | 54.12 | 65.50 | 76.17 | 76.19 | 76.79 | 73.15 | 61.39 | 49.65 | 45.76 | 58.09 | |||||||||||||
2022 | 34.94 | 34.86 | 46.71 | 58.47 | 68.89 | 76.93 | 83.35 | 77.37 | 73.47 | 58.79 | 43.85 | 37.71 | 57.94 | |||||||||||||
2023 | 39.56 | 41.48 | 48.45 | 55.32 | 66.37 | 73.97 | 81.23 | 81.42 | 74.73 | 61.08 | 49.08 | 41.85 | 59.55 | |||||||||||||
2024 | 34.06 | 46.17 | 49.13 | 56.66 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.12 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.38 | 39.91 | 47.57 | 55.95 | 64.92 | 74.14 | 77.29 | 75.66 | 68.85 | 57.92 | 46.01 | 37.62 | 56.87 | |||||||||||||
S.D. | 3.29 | 3.64 | 3.26 | 2.80 | 2.53 | 2.49 | 2.49 | 2.44 | 2.89 | 2.55 | 3.25 | 3.20 | 1.13 | |||||||||||||
SKEW | -0.24 | -0.02 | -0.26 | -0.08 | 0.69 | 0.16 | 0.28 | 0.64 | 0.38 | -0.20 | -0.40 | -0.15 | 0.12 | |||||||||||||
MAX | 42.47 | 47.64 | 53.66 | 62.05 | 71.45 | 79.71 | 83.35 | 83.16 | 75.88 | 64.03 | 51.85 | 45.76 | 59.55 | |||||||||||||
MIN | 27.69 | 31.16 | 38.77 | 49.27 | 61.21 | 69.37 | 71.77 | 70.60 | 61.97 | 51.29 | 38.28 | 29.37 | 54.05 | |||||||||||||
YRS | 61 | 61 | 61 | 59 | 60 | 59 | 62 | 62 | 61 | 60 | 60 | 61 | 58 |