YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1928 | 30.13 | a | 36.57 | 47.65 | 49.85 | 62.28 | a | 65.03 | 75.27 | 69.32 | a | 61.47 | a | 52.52 | b | 42.77 | 33.50 | d | 52.20 | |||||||
1929 | 24.98 | d | 29.76 | g | 47.70 | c | 48.67 | 58.74 | 65.35 | 71.50 | a | 73.26 | 60.81 | a | 49.30 | c | 33.36 | b | 38.54 | e | 52.02 | a | ||||
1930 | 13.57 | i | 43.87 | b | 47.55 | b | 55.79 | a | 57.34 | c | 64.33 | c | 74.95 | 73.83 | a | 63.62 | b | 49.24 | 40.07 | 33.78 | a | 54.94 | a | |||
1931 | 39.08 | a | 39.91 | 45.82 | 53.58 | 64.06 | 66.88 | a | 74.92 | 71.82 | 61.72 | 49.05 | b | 36.21 | b | 30.42 | a | 52.79 | ||||||||
1932 | 32.31 | 33.29 | 44.71 | 48.85 | c | 53.85 | d | 62.88 | 69.87 | 70.87 | 63.23 | 53.90 | 46.82 | 31.47 | 51.00 | |||||||||||
1933 | 38.20 | a | 35.06 | a | 47.15 | 52.50 | 55.68 | 66.60 | 73.32 | 72.66 | 60.82 | 55.34 | 43.24 | a | 43.73 | c | 53.69 | |||||||||
1934 | 43.47 | a | 44.68 | 52.48 | 59.58 | 62.97 | 65.86 | a | 70.55 | a | 70.85 | a | 60.74 | a | 53.67 | b | 46.63 | 39.18 | 55.89 | |||||||
1935 | 36.10 | b | 40.23 | 44.02 | 47.93 | 58.08 | 65.73 | 72.15 | 70.31 | 67.20 | 50.79 | 35.57 | 32.10 | 51.68 | ||||||||||||
1936 | 35.79 | 20.04 | a | 43.00 | 55.10 | 62.76 | 67.10 | 73.47 | 72.76 | 63.02 | 56.13 | 35.40 | 39.55 | 52.01 | ||||||||||||
1937 | 14.11 | 34.34 | 46.44 | 49.27 | 58.84 | 65.32 | 74.73 | a | 69.45 | 65.05 | 56.66 | 44.45 | 37.61 | 51.36 | ||||||||||||
1938 | 35.53 | 36.25 | 44.73 | 52.08 | 58.77 | 67.78 | 76.35 | 70.71 | 69.00 | 53.90 | 38.68 | 37.28 | b | 53.42 | ||||||||||||
1939 | 40.16 | 35.52 | 46.61 | 53.90 | 61.16 | 63.68 | 74.60 | 74.13 | 65.25 | 53.84 | 43.10 | 41.21 | 54.43 | |||||||||||||
1940 | 31.08 | 41.78 | 49.79 | 53.20 | 62.63 | 69.73 | 72.82 | 72.92 | 65.97 | 56.48 | 35.64 | a | 36.23 | 54.02 | ||||||||||||
1941 | 33.97 | 41.05 | 49.24 | 53.70 | 58.24 | 64.33 | 76.98 | 71.42 | 59.60 | 50.69 | 44.45 | 38.63 | 53.53 | |||||||||||||
1942 | 21.74 | 37.59 | 45.06 | 53.37 | 56.60 | 63.02 | 74.45 | 74.74 | 66.05 | 55.53 | 40.15 | 38.60 | 52.24 | |||||||||||||
1943 | 25.24 | 37.04 | 42.40 | 53.82 | 55.52 | 61.68 | 73.34 | 68.94 | 67.32 | 53.89 | 39.90 | 32.29 | 50.95 | |||||||||||||
1944 | 32.61 | 37.05 | 42.65 | 51.42 | 57.92 | 62.52 | 70.42 | 67.13 | 63.23 | 55.21 | 40.68 | 32.37 | 51.10 | |||||||||||||
1945 | 36.27 | 39.82 | 43.13 | 49.25 | 59.55 | 64.23 | 75.10 | 73.44 | 61.82 | 55.37 | 42.15 | 33.63 | 52.81 | |||||||||||||
1946 | 37.90 | a | 41.12 | 44.53 | 52.27 | 59.81 | 63.32 | 72.81 | 72.19 | 61.65 | 48.74 | 38.23 | 37.37 | 52.50 | ||||||||||||
1947 | 30.53 | 39.95 | 48.23 | 53.12 | 64.02 | 63.38 | 71.34 | 69.42 | 64.43 | 54.05 | 41.60 | 37.95 | 53.17 | |||||||||||||
1948 | 33.50 | 35.24 | 41.29 | 48.17 | 55.27 | 68.45 | 69.29 | 68.53 | 61.57 | 50.23 | 41.88 | 30.37 | 50.32 | |||||||||||||
1949 | 16.77 | 33.73 | 43.27 | 54.58 | 62.52 | 65.20 | 71.16 | 70.37 | 64.60 | 48.45 | 45.45 | 36.85 | 51.08 | |||||||||||||
1950 | 16.55 | 32.89 | 42.05 | 48.67 | 56.19 | 63.83 | 73.23 | 73.18 | 65.12 | 52.31 | 41.95 | 39.24 | 50.43 | |||||||||||||
1951 | 33.66 | 37.50 | 40.63 | 52.08 | 58.45 | 65.78 | 73.73 | 70.65 | 64.75 | 50.94 | 40.55 | 30.48 | 51.60 | |||||||||||||
1952 | 29.00 | 38.86 | 42.87 | 53.78 | 59.39 | 63.60 | 74.13 | 71.50 | 66.75 | 57.53 | 33.92 | 36.19 | 52.29 | |||||||||||||
1953 | 45.79 | 41.02 | 45.34 | 49.40 | 54.98 | 59.83 | 72.47 | 70.53 | 66.18 | 53.74 | 45.68 | 39.89 | 53.74 | |||||||||||||
1954 | 34.48 | 39.02 | 40.29 | 49.58 | 59.10 | 61.65 | 71.16 | 67.29 | 61.95 | 50.21 | 46.42 | 34.71 | 51.32 | |||||||||||||
1955 | 33.77 | 36.05 | 38.73 | 46.13 | 54.61 | 66.68 | 69.66 | 72.00 | 62.98 | 52.81 | 34.90 | 33.29 | 50.14 | |||||||||||||
1956 | 34.00 | 28.34 | 43.45 | 53.97 | 61.19 | 63.15 | 75.85 | 71.45 | 65.22 | 50.89 | 37.32 | 36.63 | 51.79 | |||||||||||||
1957 | 19.92 | a | 36.05 | 43.71 | 52.67 | 61.45 | 67.83 | 71.05 | 69.02 | 66.25 | 49.10 | 41.02 | 41.27 | 51.61 | ||||||||||||
1958 | 37.82 | 46.80 | 42.79 | 49.88 | 64.84 | 69.82 | 77.53 | 76.90 | 63.50 | 54.68 | 41.88 | 38.40 | 55.40 | |||||||||||||
1959 | 35.94 | 37.73 | 45.02 | 51.70 | 55.32 | 66.15 | 74.53 | 69.65 | 61.00 | 53.40 | 37.52 | 33.58 | 51.79 | |||||||||||||
1960 | 25.35 | 39.00 | 43.98 | 51.70 | 55.92 | 67.33 | 78.26 | 69.06 | 64.25 | 53.79 | 42.45 | 30.53 | 51.80 | |||||||||||||
1961 | 37.05 | 45.41 | 46.24 | 50.23 | 57.39 | 71.63 | 75.77 | 76.89 | 59.50 | 50.02 | 36.32 | 36.90 | 53.61 | |||||||||||||
1962 | 32.27 | 39.79 | 43.45 | 53.78 | 53.95 | 65.05 | 72.89 | 69.79 | 65.03 | 52.69 | 45.18 | 39.29 | 52.76 | |||||||||||||
1963 | 27.03 | 42.75 | 45.44 | 48.00 | 58.92 | 65.83 | 68.65 | 71.73 | 67.53 | 55.52 | 44.33 | 32.65 | 52.36 | |||||||||||||
1964 | 40.24 | 41.03 | 43.40 | 48.52 | 56.73 | 64.88 | 72.18 | 68.39 | 62.63 | 51.92 | 40.07 | 32.84 | 51.90 | |||||||||||||
1965 | 35.37 | 41.04 | 40.56 | 52.87 | 58.00 | 66.00 | 73.81 | 71.52 | 60.05 | 57.50 | 44.67 | 36.89 | 53.19 | |||||||||||||
1966 | 38.27 | 39.71 | 45.40 | 52.00 | 59.94 | 64.60 | 70.92 | 72.44 | 66.62 | 53.98 | 45.08 | 41.03 | 54.17 | |||||||||||||
1967 | 42.40 | 42.50 | 43.48 | 45.78 | 58.47 | 69.68 | 76.32 | 79.63 | 69.92 | 54.90 | 41.07 | 36.79 | 55.08 | |||||||||||||
1968 | 37.27 | 42.79 | 48.44 | 49.58 | 59.65 | 67.43 | 77.21 | 70.84 | 65.87 | 50.74 | 42.57 | 33.26 | 53.80 | |||||||||||||
1969 | 21.95 | 35.46 | 44.63 | 49.78 | 61.73 | 69.80 | 72.47 | 70.11 | 64.70 | 49.27 | 43.17 | 34.87 | 51.50 | |||||||||||||
1970 | 32.29 | 39.45 | 43.45 | 45.75 | 57.74 | 68.68 | 74.79 | 72.50 | 56.25 | 47.35 | 40.38 | 35.63 | 51.19 | |||||||||||||
1971 | 40.02 | 39.82 | 40.52 | 49.37 | 60.50 | 63.27 | 76.02 | 76.79 | 59.08 | 51.34 | 43.67 | 36.87 | 53.10 | |||||||||||||
1972 | 33.94 | 37.41 | 47.71 | 47.58 | 60.82 | 68.27 | 74.71 | 76.16 | 61.05 | 51.06 | 42.60 | 27.02 | 52.36 | |||||||||||||
1973 | 31.23 | 38.43 | 45.74 | 50.25 | 61.29 | 66.93 | 75.27 | 71.68 | 63.95 | 52.74 | 42.53 | 41.52 | 53.46 | |||||||||||||
1974 | 30.40 | 43.75 | 46.34 | 51.72 | 57.24 | 71.08 | 73.32 | 75.47 | 67.47 | 54.77 | 44.73 | 40.53 | 54.74 | |||||||||||||
1975 | 37.10 | 39.02 | 45.15 | 47.47 | 59.31 | 65.73 | 78.35 | 70.03 | 66.93 | 54.26 | 42.25 | 40.48 | 53.84 | |||||||||||||
1976 | 39.16 | 37.88 | 42.81 | 50.17 | 58.74 | 63.67 | 73.35 | 67.69 | 67.23 | 53.13 | 42.72 | 35.85 | 52.70 | |||||||||||||
1977 | 26.31 | 41.45 | 44.19 | 55.32 | 55.05 | 69.08 | 70.26 | 74.85 | 58.50 | 49.94 | 38.32 | 34.79 | 51.50 | |||||||||||||
1978 | 32.16 | 39.29 | 45.65 | 47.98 | 54.37 | 66.32 | 72.15 | 69.37 | 60.42 | 51.73 | 33.52 | 29.47 | 50.20 | |||||||||||||
1979 | 15.29 | 37.66 | 45.95 | 50.38 | 59.52 | 66.58 | 72.77 | 70.63 | 65.47 | 54.32 | 34.72 | 38.21 | 50.96 | |||||||||||||
1980 | 25.65 | 36.09 | 41.29 | 51.88 | 56.32 | 60.38 | 72.06 | 66.87 | 63.28 | 51.29 | 42.00 | 39.11 | 50.52 | |||||||||||||
1981 | 36.16 | 38.84 | 45.61 | 50.42 | 55.98 | 61.52 | 69.15 | 74.24 | 63.83 | 50.60 | 44.22 | 37.19 | 52.31 | |||||||||||||
1982 | 35.02 | 38.05 | 43.47 | 47.55 | 56.79 | 67.53 | 71.11 | 71.45 | 60.67 | 50.74 | 37.25 | 35.65 | 51.27 | |||||||||||||
1983 | 40.84 | 43.71 | 47.77 | 49.03 | 58.90 | 62.65 | 68.42 | 72.68 | 58.87 | 52.42 | 45.83 | 23.18 | 52.03 | |||||||||||||
1984 | 34.58 | 39.66 | 46.74 | 48.17 | 54.69 | 62.07 | 72.87 | 72.18 | 60.38 | 49.10 | 41.78 | 30.39 | 51.05 | |||||||||||||
1985 | 26.23 | 33.50 | 43.24 | 53.05 | 58.44 | 65.60 | 77.35 | 68.13 | 56.98 | 50.23 | 26.42 | 19.50 | 48.22 | |||||||||||||
1986 | 35.82 | 39.00 | 48.77 | 50.00 | 58.60 | 69.98 | 67.53 | 75.74 | 58.83 | 54.00 | 42.18 | 31.50 | 52.66 | |||||||||||||
1987 | 30.44 | 39.09 | 46.42 | 53.92 | 59.63 | 67.22 | 68.84 | 70.55 | 66.15 | 54.13 | 42.57 | 32.73 | 52.64 | |||||||||||||
1988 | 32.32 | 41.02 | 44.13 | 51.85 | 56.76 | 63.90 | 72.02 | 69.98 | 63.33 | 58.34 | 44.32 | 33.87 | 52.65 | |||||||||||||
1989 | 38.24 | 25.02 | 42.42 | 52.90 | 55.87 | 65.90 | 70.27 | 68.77 | 63.58 | 51.77 | 44.55 | 33.16 | 51.04 | |||||||||||||
1990 | 39.58 | 37.86 | 45.69 | 54.80 | 56.34 | 64.73 | 75.19 | 72.19 | 68.22 | 51.24 | 45.37 | 25.30 | a | 53.04 | ||||||||||||
1991 | 31.23 | 44.71 | 42.61 | 49.57 | 53.85 | 59.57 | 71.47 | 73.26 | 64.85 | 51.60 | 41.18 | 36.87 | 51.73 | |||||||||||||
1992 | 38.65 | 42.36 | 47.74 | 52.73 | 62.32 | 70.35 | 71.85 | 72.58 | 61.83 | 54.19 | 39.72 | 32.02 | 53.86 | |||||||||||||
1993 | 25.02 | 28.16 | 41.90 | 50.30 | 61.76 | 62.88 | 65.37 | 67.97 | 64.30 | 54.56 | 34.60 | 35.61 | 49.37 | |||||||||||||
1994 | 41.00 | 34.84 | 46.68 | 54.32 | 60.08 | 64.37 | 75.31 | 71.66 | 67.20 | 51.58 | 40.40 | 35.29 | 53.56 | |||||||||||||
1995 | 34.85 | 41.68 | 45.26 | 48.93 | 57.73 | 62.02 | 72.02 | 67.35 | 65.98 | 50.18 | 46.05 | 34.44 | 52.21 | |||||||||||||
1996 | 34.45 | 35.38 | a | 43.32 | 51.95 | 54.48 | 63.97 | 74.65 | 72.05 | 60.97 | 51.08 | 40.28 | 35.39 | 51.50 | ||||||||||||
1997 | 32.63 | 38.59 | 45.40 | 48.63 | 59.77 | 63.07 | 70.44 | 73.10 | 64.87 | 51.44 | 42.63 | 34.85 | 52.12 | |||||||||||||
1998 | 37.92 | 42.89 | 45.84 | 50.25 | 56.19 | 65.35 | 77.31 | 74.58 | 67.75 | 50.87 | 45.45 | 36.15 | 54.21 | |||||||||||||
1999 | 40.95 | 42.32 | 43.42 | 47.32 | 54.13 | 63.70 | 69.98 | 72.50 | 62.52 | 50.82 | 46.00 | 38.02 | 52.64 | |||||||||||||
2000 | 35.52 | 39.21 | 44.10 | 53.98 | 58.24 | 65.83 | 71.56 | 70.68 | 61.53 | 49.68 | 35.02 | 31.05 | 51.37 | |||||||||||||
2001 | 32.71 | 35.48 | 44.35 | 47.30 | 58.63 | 62.07 | 70.52 | 73.16 | 66.20 | 51.21 | 42.18 | 36.55 | 51.70 | |||||||||||||
2002 | 36.98 | 38.79 | 40.94 | 49.90 | 56.27 | 66.85 | 75.02 | 70.15 | 63.47 | 48.55 | 40.93 | 39.32 | 52.26 | |||||||||||||
2003 | 40.60 | 38.68 | 48.56 | 49.83 | 57.26 | 67.65 | 76.18 | 72.98 | 65.80 | 55.63 | 38.75 | 35.76 | b | 53.97 | ||||||||||||
2004 | 28.47 | 39.57 | 49.13 | 52.45 | 58.60 | 67.00 | 75.55 | 74.40 | 62.48 | 55.42 | 42.80 | 39.44 | 53.78 | |||||||||||||
2005 | 35.55 | 37.48 | 46.79 | 50.43 | 58.97 | 62.97 | 73.45 | 72.56 | 61.03 | 52.87 | 38.72 | 29.98 | 51.73 | |||||||||||||
2006 | 42.16 | 35.93 | 43.87 | 50.47 | 58.92 | 65.47 | 75.53 | 70.97 | 63.88 | 50.06 | 42.35 | 32.85 | 52.71 | |||||||||||||
2007 | 30.69 | 38.32 | 46.42 | 49.40 | 58.18 | 64.82 | 75.85 | 69.35 | 61.03 | 49.63 | 39.52 | 35.58 | 51.57 | |||||||||||||
2008 | 31.48 | 40.76 | 41.71 | 46.20 | 58.95 | 63.40 | 71.73 | 70.84 | 62.32 | 50.69 | 43.63 | 28.79 | 50.88 | |||||||||||||
2009 | 33.50 | 35.84 | 40.27 | 48.93 | 58.63 | 65.68 | 74.76 | 72.16 | 64.85 | 47.85 | 41.90 | 27.10 | 50.96 | |||||||||||||
2010 | 39.58 | 42.48 | 45.32 | 49.10 | 53.90 | 62.10 | 71.37 | 70.19 | 63.23 | 52.16 | 37.18 | 34.47 | 51.76 | |||||||||||||
2011 | 35.39 | 36.39 | 43.92 | 45.13 | 53.34 | 60.35 | 67.81 | 71.71 | 66.40 | 51.63 | 41.02 | 32.06 | 50.43 | |||||||||||||
2012 | 35.77 | 36.78 | 43.65 | 51.62 | 56.68 | 61.78 | 72.42 | 72.66 | 64.83 | 51.56 | 42.72 | 37.74 | 52.35 | |||||||||||||
2013 | 31.19 | 39.30 | 45.65 | 49.33 | 58.06 | 65.25 | 75.34 | 72.94 | 65.18 | 48.98 | 38.60 | 29.97 | 51.65 | |||||||||||||
2014 | 34.90 | 33.25 | 45.39 | 51.05 | 60.16 | 65.33 | 77.63 | 73.71 | 64.88 | 57.74 | 36.90 | 36.02 | 53.08 | |||||||||||||
2015 | 36.05 | 43.96 | 49.52 | 48.95 | 60.50 | 72.77 | 76.15 | 72.37 | 61.28 | 56.26 | 38.42 | 37.00 | 54.43 | |||||||||||||
2016 | 35.53 | 43.07 | 46.60 | 56.22 | 60.23 | 67.07 | 71.39 | 72.00 | 61.40 | 52.73 | 46.92 | 28.06 | 53.43 | |||||||||||||
2017 | 22.52 | 35.18 | 45.82 | 49.33 | 57.68 | 65.55 | 75.11 | 75.35 | 64.63 | 50.71 | 42.95 | 30.92 | 51.31 | |||||||||||||
2018 | 39.89 | 38.00 | 44.18 | 51.18 | 63.65 | 65.03 | 75.60 | 72.81 | 61.45 | 50.76 | 40.55 | 37.42 | 53.38 | |||||||||||||
2019 | 36.66 | 27.71 | 35.61 | 51.48 | 59.23 | 65.52 | 71.32 | 73.31 | 62.85 | 46.66 | 39.85 | 36.21 | 50.53 | |||||||||||||
2020 | 41.73 | 41.76 | 43.60 | 52.30 | 59.11 | 65.92 | 73.26 | 72.79 | 66.25 | 54.06 | 41.73 | 36.26 | 54.06 | |||||||||||||
2021 | 39.82 | 34.98 | 45.37 | 50.88 | 58.24 | 72.05 | 77.52 | 73.11 | 63.65 | 52.31 | 44.63 | 34.74 | 53.94 | |||||||||||||
2022 | 34.13 | 37.80 | 46.95 | 45.60 | 55.18 | 65.63 | 77.35 | 78.23 | 67.10 | 58.68 | 35.92 | 30.98 | 52.80 | |||||||||||||
2023 | 38.98 | 36.62 | 42.68 | 49.45 | 63.06 | 67.87 | 75.92 | 74.29 | 64.63 | 54.11 | 41.43 | 39.44 | 54.04 | |||||||||||||
2024 | 30.89 | 41.78 | 46.57 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.75 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.52 | 38.27 | 44.74 | 50.77 | 58.41 | 65.45 | 73.27 | 71.85 | 63.64 | 52.39 | 40.99 | 34.89 | 52.35 | |||||||||||||
S.D. | 6.36 | 4.25 | 2.61 | 2.66 | 2.66 | 2.72 | 2.70 | 2.48 | 2.73 | 2.60 | 3.72 | 4.16 | 1.37 | |||||||||||||
SKEW | -1.01 | -1.29 | -0.20 | 0.30 | 0.21 | 0.33 | -0.28 | 0.42 | -0.25 | 0.27 | -0.89 | -0.81 | 0.01 | |||||||||||||
MAX | 45.79 | 46.80 | 52.48 | 59.58 | 64.84 | 72.77 | 78.35 | 79.63 | 69.92 | 58.68 | 46.92 | 43.73 | 55.89 | |||||||||||||
MIN | 14.11 | 20.04 | 35.61 | 45.13 | 53.34 | 59.57 | 65.37 | 66.87 | 56.25 | 46.66 | 26.42 | 19.50 | 48.22 | |||||||||||||
YRS | 96 | 96 | 97 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 94 |