YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.30 | a | 71.16 | 66.66 | a | 56.94 | 42.33 | c | 34.50 | g | 62.28 | g | ||
1925 | 39.14 | b | 43.83 | d | 45.30 | d | 49.77 | d | 68.03 | b | 75.57 | 83.13 | 77.90 | 72.80 | 63.87 | 51.53 | 52.94 | 60.32 | ||||||||
1926 | 44.17 | a | 50.43 | 61.77 | 68.45 | a | 64.03 | 76.57 | 80.73 | a | 75.32 | 67.83 | 60.35 | 53.70 | 42.40 | a | 62.15 | |||||||||
1927 | 41.61 | 47.82 | 49.26 | 57.41 | a | 61.00 | 72.07 | 76.65 | 76.81 | 64.21 | a | 56.90 | 45.83 | 40.00 | b | 57.46 | ||||||||||
1928 | 41.55 | b | 45.90 | 51.90 | 49.21 | p | 70.61 | 66.80 | 75.42 | 74.65 | 66.80 | 55.39 | 48.33 | 40.97 | 58.03 | a | ||||||||||
1929 | 35.71 | 39.19 | a | 48.52 | 52.79 | a | 63.19 | 66.86 | a | 75.77 | 75.97 | 69.93 | 62.00 | 49.30 | 45.00 | 57.02 | ||||||||||
1930 | 31.94 | 46.82 | 53.16 | 61.23 | 61.84 | 67.20 | 75.84 | 78.13 | 67.03 | 57.23 | a | 49.70 | 42.29 | 57.70 | ||||||||||||
1931 | 46.55 | 48.50 | 50.81 | 61.93 | 70.61 | 68.73 | 78.61 | 77.55 | 65.37 | 58.70 | a | 45.67 | 39.29 | 59.36 | ||||||||||||
1932 | 38.68 | 41.59 | 47.87 | 58.00 | 62.52 | 73.33 | 71.65 | 72.55 | 72.03 | 59.26 | 51.33 | 39.68 | 57.37 | |||||||||||||
1933 | 40.10 | 38.43 | 46.84 | 56.70 | 58.13 | 67.83 | 74.87 | 77.35 | 63.17 | 59.50 | a | 50.37 | 45.81 | 56.59 | ||||||||||||
1934 | 47.06 | 53.79 | 59.10 | 66.63 | 66.77 | 71.27 | 72.29 | 76.45 | 65.77 | 61.00 | 51.13 | 44.07 | a | 61.28 | ||||||||||||
1935 | 42.06 | 49.43 | 46.13 | 57.50 | 66.23 | 70.37 | 74.58 | 74.52 | 73.07 | 57.00 | 46.67 | 46.65 | 58.68 | |||||||||||||
1936 | 44.39 | 35.31 | 48.03 | 60.37 | 67.35 | 70.03 | 74.55 | 77.74 | 68.53 | 62.10 | 53.30 | 43.42 | 58.76 | |||||||||||||
1937 | 32.87 | 41.50 | 53.19 | 52.37 | 65.16 | 71.70 | 75.87 | 71.97 | 68.57 | 63.32 | 49.37 | 43.74 | 57.47 | |||||||||||||
1938 | 43.90 | 46.07 | 48.68 | 60.40 | 66.81 | 72.40 | 79.74 | 73.61 | 73.70 | 61.13 | 46.43 | 45.87 | 59.90 | |||||||||||||
1939 | 43.71 | 40.89 | 50.23 | 61.27 | 65.03 | 64.90 | 75.52 | 78.60 | a | 69.67 | 58.68 | 54.13 | 47.52 | 59.18 | ||||||||||||
1940 | 44.32 | 47.03 | 54.90 | 59.33 | 72.06 | 76.60 | 75.55 | 76.55 | 71.93 | 60.65 | 46.73 | 45.19 | 60.91 | |||||||||||||
1941 | 47.06 | 53.68 | 61.65 | 62.70 | 64.32 | 69.40 | 80.97 | 74.71 | 62.87 | 58.58 | 52.30 | 43.35 | 60.97 | |||||||||||||
1942 | 42.61 | 45.68 | 52.74 | 59.47 | 61.84 | 68.27 | 76.71 | 79.48 | 72.10 | 61.65 | 46.43 | 43.35 | 59.19 | |||||||||||||
1943 | 39.48 | 51.50 | 49.19 | 60.97 | 62.00 | 67.10 | 77.06 | 73.48 | 76.20 | 59.74 | 54.33 | 46.32 | 59.78 | |||||||||||||
1944 | 43.61 | 46.31 | 51.42 | 57.93 | 65.90 | 69.60 | 78.65 | 73.97 | a | 72.90 | 66.65 | 49.47 | 44.19 | 60.05 | ||||||||||||
1945 | 45.81 | 45.93 | 48.58 | 52.00 | 65.87 | 69.17 | 80.06 | 78.42 | 68.33 | 61.52 | 43.93 | 41.61 | 58.44 | |||||||||||||
1946 | 43.29 | 45.14 | 50.87 | 57.63 | 69.33 | a | 66.79 | b | 77.13 | a | 78.29 | 69.50 | b | 55.39 | 47.03 | 43.00 | 58.62 | |||||||||
1947 | 40.93 | a | 50.56 | a | 57.97 | 62.38 | a | 70.71 | 68.93 | a | 75.18 | c | 74.71 | 71.37 | 57.16 | 48.13 | 44.35 | 60.20 | ||||||||
1948 | 43.52 | 43.62 | 49.23 | 53.33 | 61.74 | 73.20 | 73.65 | 69.29 | 69.63 | 60.48 | 45.23 | 38.26 | 56.77 | |||||||||||||
1949 | 36.42 | 42.43 | 52.19 | 59.00 | 69.77 | 71.43 | 74.97 | 74.68 | 72.60 | 57.26 | 58.80 | 42.65 | 59.35 | |||||||||||||
1950 | 29.84 | 41.89 | 46.29 | 54.30 | 62.74 | 70.55 | a | 77.87 | 78.94 | 71.83 | 55.74 | 47.60 | 46.81 | 57.03 | ||||||||||||
1951 | 40.45 | 45.82 | 46.55 | 65.03 | 66.26 | 75.03 | 79.03 | 75.52 | 72.93 | 57.06 | 47.63 | 38.52 | 59.15 | |||||||||||||
1952 | 36.06 | 44.31 | 47.16 | 59.23 | 64.81 | 63.80 | 76.84 | 74.74 | 73.23 | 67.97 | 49.20 | 42.74 | 58.34 | |||||||||||||
1953 | 47.65 | 46.71 | 47.87 | 54.20 | 61.23 | 61.60 | 73.68 | 73.42 | 71.60 | 62.55 | i | 50.53 | 46.19 | 57.70 | a | |||||||||||
1954 | 38.48 | 47.68 | 49.19 | 51.83 | 63.45 | 62.27 | 69.03 | 67.39 | 66.00 | 59.26 | 53.80 | 42.68 | 55.92 | |||||||||||||
1955 | 41.65 | 41.75 | 42.48 | 49.43 | 57.35 | 65.37 | 65.68 | 72.52 | 65.76 | a | 57.39 | 40.86 | a | 39.03 | 53.27 | |||||||||||
1956 | 39.32 | 37.79 | 44.35 | 59.40 | 67.87 | 62.87 | 76.55 | 73.42 | 68.73 | 53.42 | 50.97 | 44.97 | 56.64 | |||||||||||||
1957 | 36.16 | 43.11 | 47.90 | a | 56.90 | 66.06 | 67.90 | 70.45 | 70.84 | 75.37 | 58.03 | 50.07 | 45.81 | 57.38 | ||||||||||||
1958 | 45.29 | 50.96 | 51.06 | 56.83 | 72.13 | 71.90 | 83.68 | 80.61 | 68.42 | d | 63.48 | 49.42 | f | 47.58 | 62.91 | a | ||||||||||
1959 | 41.03 | 43.00 | 48.13 | 55.80 | 60.87 | 66.00 | 76.81 | 72.42 | 62.60 | 58.65 | 48.83 | 43.45 | 56.47 | |||||||||||||
1960 | 38.10 | 44.83 | 48.61 | 55.40 | 58.58 | 67.70 | 79.87 | 69.68 | 68.13 | 59.81 | 47.80 | 44.26 | 56.90 | |||||||||||||
1961 | 48.77 | 45.43 | 49.94 | 52.20 | 60.97 | 74.10 | 77.19 | 80.97 | 66.57 | 57.23 | 46.70 | 40.65 | 58.39 | |||||||||||||
1962 | 42.74 | 47.96 | 45.52 | 57.17 | 54.26 | 67.87 | 72.74 | 70.10 | 69.77 | 59.90 | 50.37 | 44.97 | 56.95 | |||||||||||||
1963 | 38.29 | 53.39 | 50.19 | 52.20 | 64.97 | 63.80 | 69.13 | 71.77 | 73.27 | 60.03 | 47.83 | 44.39 | 57.44 | |||||||||||||
1964 | 41.61 | 46.66 | 47.52 | 51.43 | 59.06 | 64.13 | 71.10 | 69.00 | 64.70 | 62.74 | 44.97 | 37.48 | 55.03 | |||||||||||||
1965 | 42.52 | 44.14 | 54.10 | 57.27 | 59.13 | 68.40 | 77.90 | 73.87 | 66.17 | 63.97 | 52.07 | 41.26 | 58.40 | |||||||||||||
1966 | 41.74 | 46.00 | 51.26 | 56.90 | 64.03 | 65.67 | 69.55 | 73.06 | 70.47 | 59.03 | 50.83 | 45.06 | 57.80 | |||||||||||||
1967 | 45.10 | 47.96 | 47.00 | 52.23 | 61.87 | 71.23 | 75.45 | 82.00 | 75.47 | 59.19 | 51.30 | 41.77 | a | 59.21 | ||||||||||||
1968 | 41.71 | 54.31 | 54.26 | 53.60 | 62.45 | 66.10 | 75.68 | 70.26 | 67.23 | 57.58 | 48.83 | 38.52 | 57.54 | |||||||||||||
1969 | 33.03 | a | 43.46 | 53.90 | 55.70 | 66.90 | 71.47 | 72.00 | 69.74 | 66.87 | 57.19 | 51.70 | 45.06 | 57.25 | ||||||||||||
1970 | 40.84 | 52.96 | 51.74 | 50.87 | 61.68 | 71.93 | 73.77 | 73.13 | 64.73 | 57.71 | 49.23 | 39.00 | 57.30 | |||||||||||||
1971 | 42.32 | 45.57 | 44.19 | 54.27 | 62.81 | 61.10 | 74.87 | 77.65 | 65.83 | 55.65 | 46.57 | 39.39 | 55.85 | |||||||||||||
1972 | 38.32 | 45.24 | 50.71 | 51.43 | 65.71 | 65.90 | 74.10 | 75.77 | 63.83 | 58.39 | 49.70 | 38.06 | 56.43 | |||||||||||||
1973 | 40.61 | 49.43 | 49.87 | 56.83 | 64.74 | 65.53 | 73.87 | 69.32 | 69.30 | 57.26 | 42.90 | 45.55 | 57.10 | |||||||||||||
1974 | 39.39 | 44.50 | 48.68 | 53.77 | 57.94 | 68.40 | 71.19 | 74.42 | 75.70 | 63.55 | 48.63 | 45.00 | 57.60 | |||||||||||||
1975 | 40.84 | 42.71 | 47.42 | 50.90 | 62.45 | 64.33 | 73.35 | 68.06 | 71.83 | 55.81 | 46.87 | 45.10 | 55.81 | |||||||||||||
1976 | 44.97 | 45.21 | 47.23 | 55.73 | 63.94 | 63.93 | 71.74 | 66.81 | 68.93 | 60.00 | ----- | z | 47.00 | 57.77 | a | |||||||||||
1977 | 43.23 | 51.93 | 47.39 | 60.57 | 58.65 | 69.00 | 70.81 | 78.65 | 65.17 | 59.03 | 46.07 | 43.29 | 57.81 | |||||||||||||
1978 | 44.13 | 48.54 | 53.10 | 55.67 | 60.39 | 72.10 | 73.39 | 72.06 | 63.00 | 63.16 | 45.37 | 38.10 | 57.42 | |||||||||||||
1979 | 35.61 | 42.29 | 55.03 | 55.23 | 64.06 | 70.33 | 75.58 | 72.71 | 70.97 | 60.90 | 48.67 | 46.29 | 58.14 | |||||||||||||
1980 | 37.74 | 46.31 | 48.16 | 61.00 | 61.48 | 63.40 | 72.71 | 69.52 | 67.57 | 63.00 | 50.20 | 46.13 | 57.27 | |||||||||||||
1981 | 49.94 | 47.71 | 55.23 | 55.27 | 61.39 | 63.77 | 69.97 | 78.65 | 69.63 | 56.65 | 52.87 | 42.71 | 58.65 | |||||||||||||
1982 | 41.06 | 43.93 | 50.65 | 54.23 | 61.94 | 73.00 | 70.06 | 73.03 | 68.13 | 59.06 | 44.77 | 43.23 | 56.92 | |||||||||||||
1983 | 47.74 | 49.39 | 54.71 | 59.20 | 66.32 | 65.50 | 68.77 | 72.90 | 65.80 | 58.52 | 48.70 | 34.97 | 57.71 | |||||||||||||
1984 | 46.13 | 48.21 | 53.06 | 54.03 | a | 58.39 | 64.93 | 75.13 | 74.48 | 66.50 | 55.43 | a | 46.77 | 39.03 | 56.84 | |||||||||||
1985 | 43.28 | b | 42.61 | 49.10 | 56.45 | a | 63.52 | 68.87 | 81.45 | 73.87 | 64.83 | 56.06 | 38.00 | 43.10 | 56.76 | |||||||||||
1986 | 48.29 | 46.75 | 55.32 | 53.57 | 62.39 | 72.63 | 68.13 | 79.39 | 64.47 | 62.61 | 47.57 | 42.29 | 58.62 | |||||||||||||
1987 | 42.14 | b | 50.64 | 51.84 | 60.97 | 65.00 | 71.90 | 72.06 | 75.84 | 72.77 | 66.06 | 51.03 | 40.84 | 60.09 | ||||||||||||
1988 | 42.29 | 48.66 | 50.58 | 57.23 | 62.35 | 66.93 | 74.29 | 73.71 | 68.77 | 61.58 | 46.97 | 45.55 | 58.24 | |||||||||||||
1989 | 42.55 | 38.21 | 47.32 | 60.80 | 62.81 | 71.67 | 70.97 | 71.13 | 73.00 | 58.48 | 50.17 | 45.58 | 57.72 | |||||||||||||
1990 | 45.74 | 42.89 | 53.81 | 58.67 | 61.03 | 66.83 | 78.29 | 76.13 | a | 70.47 | 55.65 | 49.53 | 37.35 | 58.03 | ||||||||||||
1991 | 41.61 | 53.79 | 48.55 | 55.23 | 58.32 | 63.60 | 75.61 | 76.42 | 71.80 | 61.26 | 48.90 | 46.74 | 58.49 | |||||||||||||
1992 | 46.61 | 53.86 | 58.84 | 60.77 | 69.71 | 73.77 | 73.42 | 76.61 | 66.87 | 58.74 | 47.17 | 40.58 | 60.58 | |||||||||||||
1993 | 39.16 | 45.64 | 53.00 | 54.97 | 68.29 | 66.23 | 65.58 | 72.81 | 71.20 | 62.29 | 44.93 | 44.55 | 57.39 | |||||||||||||
1994 | 48.00 | 42.70 | a | 55.19 | 57.63 | 64.71 | 67.07 | 76.77 | 74.55 | 71.90 | 57.81 | 43.27 | 42.65 | 58.52 | ||||||||||||
1995 | 46.23 | 50.36 | 53.06 | 57.80 | 66.74 | 69.10 | 74.87 | 70.68 | 72.87 | 58.16 | 54.10 | 43.29 | 59.77 | |||||||||||||
1996 | 41.29 | 48.03 | 51.93 | a | 57.90 | 58.58 | 69.00 | 79.16 | 77.10 | 65.33 | 57.74 | 46.83 | 41.70 | a | 57.88 | |||||||||||
1997 | 45.71 | 50.82 | 53.16 | 56.83 | 66.58 | 65.17 | 71.45 | 77.10 | 70.43 | 56.32 | 53.77 | 45.23 | 59.38 | |||||||||||||
1998 | 44.16 | 49.61 | 51.19 | 56.50 | 58.65 | 65.50 | 75.23 | 75.26 | 74.00 | 59.32 | 49.40 | 41.03 | 58.32 | |||||||||||||
1999 | 45.77 | 45.46 | 49.57 | a | 55.11 | k | 59.03 | a | 62.23 | 70.61 | 71.87 | 69.90 | 58.97 | 50.66 | a | 48.06 | 57.47 | a | ||||||||
2000 | 41.77 | a | 46.93 | 48.71 | 58.87 | 61.06 | 68.17 | 70.74 | 72.13 | 67.23 | 58.74 | 46.14 | a | 44.26 | 57.06 | |||||||||||
2001 | 44.90 | 46.29 | 51.26 | 54.07 | 65.10 | 63.40 | 71.42 | 72.58 | 67.70 | 56.03 | 50.33 | 43.74 | 57.23 | |||||||||||||
2002 | 43.52 | 47.18 | 47.16 | 55.45 | a | 61.65 | 68.93 | 75.06 | 74.16 | 70.27 | 57.26 | 54.80 | 45.74 | 58.43 | ||||||||||||
2003 | 50.10 | 47.71 | 50.23 | 53.93 | 60.87 | 70.57 | 77.71 | 76.48 | 72.77 | 61.55 | 47.28 | a | 44.32 | 59.46 | ||||||||||||
2004 | 42.07 | a | 47.76 | 54.06 | 62.50 | 61.61 | 70.93 | 76.70 | a | 76.39 | 64.93 | 59.77 | a | 51.00 | a | 46.50 | c | 59.52 | ||||||||
2005 | 46.45 | b | 51.89 | 55.73 | a | 56.77 | 63.77 | 64.57 | 75.10 | 76.73 | a | 68.67 | 60.20 | a | 49.41 | c | 42.86 | b | 59.35 | |||||||
2006 | 45.29 | c | 46.65 | b | 49.68 | 57.71 | b | 64.33 | a | 69.57 | 76.23 | 75.42 | 71.67 | 60.06 | 47.17 | a | 43.55 | 58.94 | ||||||||
2007 | 43.70 | a | 47.70 | a | 51.77 | a | 54.80 | 65.29 | c | 66.39 | b | 73.93 | b | 72.93 | c | 66.24 | a | 56.33 | a | 48.72 | a | ----- | z | 58.89 | a | |
2008 | 39.63 | a | 47.64 | a | 48.42 | 50.60 | 60.63 | a | 62.62 | a | 72.87 | 73.84 | 68.28 | a | 58.11 | c | ----- | z | 38.97 | a | 56.51 | a | ||||
2009 | 44.71 | 46.96 | 45.10 | 54.63 | ----- | z | ----- | z | 80.77 | 73.16 | 72.97 | 56.81 | 48.83 | 39.55 | 56.35 | b | ||||||||||
2010 | 48.71 | 51.68 | 53.45 | 54.40 | 58.55 | 62.97 | a | 72.97 | 72.48 | 66.70 | 57.94 | 46.45 | a | 43.37 | a | 57.47 | ||||||||||
2011 | 43.77 | 44.46 | d | 49.30 | a | 49.28 | a | 58.63 | a | 64.17 | 71.23 | a | 74.10 | 72.80 | 56.29 | 45.50 | 43.55 | 56.09 | ||||||||
2012 | 42.97 | 46.45 | 45.83 | a | 57.07 | 64.06 | 62.57 | 71.57 | a | 77.45 | 73.50 | 59.45 | 49.07 | 41.13 | 57.59 | |||||||||||
2013 | 41.87 | a | 45.64 | 52.30 | a | 53.55 | a | 65.14 | b | 70.93 | c | 76.90 | 77.39 | c | 69.43 | 56.81 | 49.97 | 41.42 | 58.45 | |||||||
2014 | 48.83 | a | 41.43 | 52.14 | b | 57.70 | 66.00 | a | 67.70 | 79.96 | c | 78.48 | 72.30 | 66.85 | k | ----- | z | ----- | z | 62.73 | c | |||||
2015 | 50.48 | b | 54.14 | 57.77 | 58.33 | 64.42 | 77.90 | 81.16 | 78.03 | 67.20 | 63.42 | 48.37 | 42.13 | 61.95 | ||||||||||||
2016 | 44.71 | 52.52 | 53.68 | 64.30 | 66.94 | 70.93 | 72.10 | 77.39 | 67.63 | 58.77 | 53.17 | a | 38.39 | 60.04 | ||||||||||||
2017 | 39.67 | a | 43.29 | 48.32 | 54.83 | 66.00 | 69.57 | 77.55 | 83.26 | 72.47 | 59.35 | 47.00 | 43.19 | 58.71 | ||||||||||||
2018 | 45.48 | 42.18 | 51.90 | 57.77 | 67.13 | 67.77 | 81.55 | 79.16 | 68.50 | 60.03 | 50.87 | 44.06 | 59.70 | |||||||||||||
2019 | 48.03 | 38.43 | 53.68 | 56.73 | 67.97 | 69.03 | 73.29 | 76.87 | 66.70 | 55.77 | 51.13 | 45.06 | 58.56 | |||||||||||||
2020 | 44.42 | 47.28 | 48.39 | 58.50 | 65.39 | 66.90 | 74.29 | 77.00 | 74.17 | 59.55 | 48.97 | 47.68 | 59.38 | |||||||||||||
2021 | 46.26 | 40.18 | 51.42 | 61.47 | 63.61 | 75.83 | 79.35 | 77.40 | a | 69.83 | 56.65 | 51.17 | 43.93 | d | 59.76 | |||||||||||
2022 | 45.23 | 47.57 | 52.17 | a | 50.21 | p | 58.15 | r | 68.00 | b | 78.37 | l | 82.87 | a | 77.60 | 69.33 | a | 48.47 | 45.30 | a | 59.61 | c | ||||
2023 | 47.16 | 45.11 | a | 50.50 | a | 54.00 | 70.81 | 70.41 | a | 80.68 | 80.06 | 69.57 | 59.97 | 48.27 | 46.45 | 60.25 | ||||||||||
2024 | 40.84 | 47.93 | a | 49.52 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.09 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.66 | 46.38 | 50.75 | 56.75 | 63.76 | 68.34 | 74.95 | 74.90 | 69.32 | 59.32 | 48.80 | 43.19 | 58.26 | |||||||||||||
S.D. | 4.03 | 4.01 | 3.63 | 3.77 | 3.63 | 3.75 | 3.69 | 3.39 | 3.37 | 2.87 | 3.19 | 2.97 | 1.52 | |||||||||||||
SKEW | -0.62 | -0.12 | 0.60 | 0.42 | 0.12 | 0.26 | -0.01 | -0.02 | 0.08 | 0.94 | -0.16 | -0.16 | -0.01 | |||||||||||||
MAX | 50.48 | 54.31 | 61.77 | 68.45 | 72.13 | 77.90 | 83.68 | 83.26 | 77.60 | 69.33 | 58.80 | 52.94 | 62.15 | |||||||||||||
MIN | 29.84 | 35.31 | 42.48 | 49.28 | 54.26 | 61.10 | 65.58 | 66.81 | 62.60 | 53.42 | 38.00 | 34.97 | 53.27 | |||||||||||||
YRS | 100 | 100 | 100 | 96 | 97 | 98 | 99 | 100 | 100 | 98 | 96 | 97 | 89 |