YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.93 | 81.16 | 80.10 | 77.37 | 63.65 | 50.22 | 41.15 | 67.22 | e | |||||||
1931 | 44.73 | 48.14 | 48.02 | 57.72 | 67.26 | 79.45 | 79.76 | 79.26 | 80.18 | 68.42 | 55.23 | 42.76 | 62.58 | |||||||||||||
1932 | 42.97 | 53.74 | 48.68 | 63.80 | 68.52 | 78.42 | 81.11 | 80.34 | 68.83 | 59.26 | 47.00 | 38.81 | 60.96 | |||||||||||||
1933 | 47.02 | 43.96 | 56.77 | 60.27 | 70.77 | 79.77 | 82.60 | 80.87 | 78.47 | 68.66 | 54.73 | 50.06 | 64.50 | |||||||||||||
1934 | 45.26 | 48.88 | 53.90 | 65.33 | 73.45 | 82.83 | 83.42 | 81.95 | 74.60 | 69.39 | 55.67 | 47.08 | 65.15 | |||||||||||||
1935 | 48.06 | 46.89 | 59.65 | 65.43 | 68.13 | 77.37 | 79.15 | 81.00 | 68.32 | 64.63 | 52.03 | 44.34 | 62.92 | |||||||||||||
1936 | 41.84 | 43.67 | 57.77 | 62.36 | b | 71.53 | 79.69 | f | 78.32 | 80.55 | 72.88 | 60.52 | 48.95 | 46.94 | 60.48 | a | ||||||||||
1937 | 40.19 | 46.89 | 49.27 | 63.88 | 73.23 | 79.97 | 81.94 | 82.77 | 76.72 | 65.63 | 50.63 | 44.34 | 62.96 | |||||||||||||
1938 | 45.16 | 51.68 | 59.10 | 62.13 | 73.79 | 79.82 | 79.26 | 79.03 | 74.67 | 65.84 | 48.73 | 43.52 | 63.56 | |||||||||||||
1939 | 45.18 | 42.59 | 57.35 | 63.67 | 72.97 | 81.22 | 82.03 | 79.03 | 76.50 | 66.31 | 50.73 | 47.37 | 63.75 | |||||||||||||
1940 | 36.63 | 48.38 | 57.58 | 63.50 | 72.44 | 76.23 | 81.26 | 78.84 | 74.68 | 65.89 | 50.48 | 47.74 | 62.80 | |||||||||||||
1941 | 46.05 | 47.41 | 49.60 | 60.48 | 70.26 | 75.00 | 79.10 | 79.60 | 73.72 | 65.15 | 53.42 | 46.90 | 62.22 | |||||||||||||
1942 | 41.81 | 46.86 | 53.29 | 63.80 | 71.21 | 80.02 | 80.87 | 78.65 | 69.87 | 63.23 | 57.32 | 47.66 | 62.88 | |||||||||||||
1943 | 44.13 | 51.16 | 54.40 | 68.53 | 70.52 | 79.63 | 81.81 | 85.16 | 73.47 | 63.26 | 51.83 | 42.26 | 63.85 | |||||||||||||
1944 | 42.89 | 50.09 | 53.73 | 62.60 | 72.26 | 80.60 | 83.42 | 81.55 | 72.92 | 64.87 | 53.37 | 42.05 | 63.36 | |||||||||||||
1945 | 46.39 | 50.34 | 59.21 | 61.83 | 75.05 | 80.35 | 78.15 | 81.05 | 75.95 | 62.06 | 56.23 | 44.65 | 64.27 | |||||||||||||
1946 | 41.73 | 49.89 | 58.47 | 70.95 | 73.53 | 79.05 | 83.53 | a | 84.26 | 76.33 | 69.29 | 55.87 | 49.65 | 66.05 | ||||||||||||
1947 | 42.34 | 44.77 | 53.89 | 65.23 | 72.27 | 80.60 | 82.60 | 79.94 | 76.18 | 70.45 | 50.87 | 45.58 | 63.73 | |||||||||||||
1948 | 41.71 | b | 46.59 | 52.06 | 69.95 | 74.44 | 82.90 | 81.77 | 82.79 | 73.67 | 63.82 | 50.53 | 50.06 | 64.19 | ||||||||||||
1949 | 35.23 | 49.50 | 56.44 | 60.27 | 73.71 | 79.03 | 81.82 | 78.73 | 73.93 | 62.16 | 56.80 | 46.32 | 62.83 | |||||||||||||
1950 | 50.10 | 53.00 | 55.97 | 63.97 | 72.58 | 79.95 | 80.27 | 80.16 | 74.28 | 69.63 | 53.92 | 46.03 | 64.99 | |||||||||||||
1951 | 42.66 | 49.50 | 54.31 | 62.18 | 73.31 | 81.80 | 84.69 | 83.40 | 76.85 | 68.44 | 51.07 | 48.34 | 64.71 | |||||||||||||
1952 | 51.23 | 50.86 | 53.40 | 63.03 | 72.13 | 82.08 | 81.13 | 85.60 | 74.05 | 64.08 | 50.43 | 45.31 | 64.44 | |||||||||||||
1953 | 51.90 | 47.34 | 60.63 | 63.72 | 72.61 | 85.48 | 84.39 | 82.06 | 76.90 | 65.39 | 53.43 | 41.45 | 65.44 | |||||||||||||
1954 | 47.03 | 53.73 | 55.03 | 68.55 | 68.94 | 79.68 | 83.23 | 82.35 | 78.12 | 65.92 | 54.13 | 48.18 | 65.41 | |||||||||||||
1955 | 42.92 | 46.73 | 56.63 | 68.00 | 73.34 | 79.18 | 80.61 | 80.56 | 76.32 | 65.65 | 52.10 | 48.27 | 64.19 | |||||||||||||
1956 | 45.19 | 46.40 | 56.98 | 63.02 | 76.40 | 83.00 | 82.45 | 81.18 | 76.60 | 67.61 | 50.17 | 47.53 | 64.71 | |||||||||||||
1957 | 44.81 | 54.21 | 55.44 | 61.03 | 69.48 | 77.90 | 83.29 | 82.35 | 73.40 | 61.85 | 47.20 | 48.47 | 63.29 | |||||||||||||
1958 | 41.94 | 44.54 | 47.94 | 60.17 | 71.77 | 81.50 | 84.18 | 81.94 | 74.70 | 61.47 | 53.58 | 43.35 | 62.26 | |||||||||||||
1959 | 42.65 | 46.84 | 53.85 | 62.05 | 73.26 | 78.82 | 78.05 | 81.21 | 76.27 | 62.94 | 47.07 | 46.77 | 62.48 | |||||||||||||
1960 | 43.23 | 42.53 | 51.31 | 65.25 | 72.31 | 82.43 | 80.53 | 80.77 | 75.45 | 66.90 | 54.72 | 40.34 | 62.98 | |||||||||||||
1961 | 40.19 | 47.91 | 55.40 | 64.40 | 73.63 | 77.47 | 77.95 | 78.31 | 73.30 | 65.60 | 48.68 | 44.56 | 62.28 | |||||||||||||
1962 | 39.06 | 54.07 | 52.32 | 64.98 | 77.39 | 78.85 | 82.15 | 83.02 | 74.47 | 67.58 | 54.88 | 45.60 | 64.53 | |||||||||||||
1963 | 39.74 | 47.38 | 58.68 | 69.45 | 74.32 | 79.18 | 83.48 | 82.15 | 76.18 | 71.03 | 55.93 | 40.18 | 64.81 | |||||||||||||
1964 | 43.60 | 42.62 | 55.58 | 67.10 | 75.61 | 83.43 | 86.82 | 87.16 | 76.48 | 66.37 | 56.55 | 49.00 | 65.86 | |||||||||||||
1965 | 47.53 | 43.16 | 47.73 | 67.42 | 71.68 | 78.95 | 82.79 | 79.61 | 74.87 | 63.90 | 57.40 | 49.66 | 63.72 | |||||||||||||
1966 | 37.97 | 42.62 | 57.18 | 61.90 | 70.39 | 77.97 | 84.13 | 78.87 | 72.77 | 61.19 | 56.73 | 43.37 | 62.09 | |||||||||||||
1967 | 43.58 | 46.39 | 60.47 | 68.70 | 72.31 | 79.93 | 80.71 | 77.63 | 71.13 | 63.98 | 53.97 | 41.90 | 63.39 | |||||||||||||
1968 | 44.26 | 44.66 | 53.45 | 60.80 | 70.79 | 77.47 | 78.47 | 79.19 | 72.62 | 66.95 | 49.55 | 43.31 | 61.79 | |||||||||||||
1969 | 47.55 | 48.05 | 47.47 | 65.22 | 69.27 | 78.17 | 84.03 | 82.74 | 74.18 | 61.00 | 51.40 | 47.60 | 63.06 | |||||||||||||
1970 | 41.97 | 47.55 | 49.79 | 61.45 | 69.85 | 77.50 | 82.16 | 79.84 | 73.38 | 61.84 | 53.07 | 50.61 | 62.42 | |||||||||||||
1971 | 47.37 | 47.21 | 55.77 | 62.75 | 72.19 | 78.38 | 80.61 | 74.35 | 71.57 | 64.00 | 53.25 | 47.79 | 62.94 | |||||||||||||
1972 | 44.13 | 49.33 | 60.03 | 69.68 | 70.31 | 78.88 | 79.18 | 75.63 | 72.52 | 62.52 | 46.40 | 43.50 | 62.68 | |||||||||||||
1973 | 38.82 | 43.80 | 54.44 | 57.03 | 68.74 | 77.02 | 78.11 | 78.82 | 71.95 | 64.97 | 56.58 | 46.65 | 61.41 | |||||||||||||
1974 | 45.15 | 49.43 | 62.69 | 66.08 | 77.48 | 81.05 | 83.37 | 79.52 | 67.78 | 64.23 | 53.55 | 45.60 | 64.66 | |||||||||||||
1975 | 45.92 | 48.02 | 54.92 | 63.00 | 71.81 | 80.28 | 77.77 | 78.94 | 70.62 | 64.85 | 53.48 | 46.69 | 63.03 | |||||||||||||
1976 | 43.85 | 56.19 | 57.00 | 64.60 | 68.47 | 78.05 | 75.77 | 78.82 | 71.72 | 58.35 | 46.60 | 44.29 | 61.98 | |||||||||||||
1977 | 40.40 | 50.16 | 54.73 | 61.57 | 76.39 | 82.07 | 83.61 | 85.34 | 82.05 | 66.92 | 54.93 | 49.35 | 65.63 | |||||||||||||
1978 | 38.15 | 43.79 | 58.05 | 67.75 | 72.13 | 78.08 | 81.92 | 78.87 | 71.35 | 61.31 | 52.25 | 42.55 | 62.18 | |||||||||||||
1979 | 35.89 | 45.30 | 55.39 | 62.57 | 70.65 | 77.38 | 82.08 | 78.95 | 75.08 | 68.05 | 49.45 | 46.39 | 62.26 | |||||||||||||
1980 | 44.84 | 46.33 | 52.35 | 59.12 | 69.03 | 81.85 | 84.03 | 80.73 | 72.70 | 60.21 | 47.13 | 46.21 | 62.04 | |||||||||||||
1981 | 43.16 | 48.54 | 52.42 | 63.85 | 70.15 | 79.08 | 83.56 | 80.16 | 75.67 | 65.60 | 56.98 | 47.74 | 63.91 | |||||||||||||
1982 | 43.60 | 45.80 | 57.48 | 63.82 | 70.69 | 79.07 | 82.23 | 82.73 | 77.33 | 64.21 | 52.13 | 43.40 | 63.54 | |||||||||||||
1983 | 41.79 | 48.02 | 55.85 | 59.47 | 71.50 | 79.32 | 83.66 | 84.05 | 77.73 | 67.79 | 55.02 | 37.44 | 63.47 | |||||||||||||
1984 | 40.03 | 48.22 | 54.95 | 63.63 | 74.06 | 79.73 | 80.81 | 80.19 | 71.42 | 61.68 | 50.67 | 48.03 | 62.79 | |||||||||||||
1985 | 37.52 | 44.32 | 56.68 | 66.83 | 74.74 | 77.28 | 81.13 | 84.08 | 74.15 | 63.71 | 54.62 | 41.11 | 63.01 | |||||||||||||
1986 | 46.24 | 51.32 | 58.87 | 68.40 | 72.73 | 77.12 | 80.77 | 79.55 | 74.20 | 61.63 | 50.68 | 43.65 | 63.76 | |||||||||||||
1987 | 42.53 | 47.43 | 49.52 | 59.17 | 69.18 | 75.67 | 80.52 | 81.34 | 73.07 | 66.27 | 50.78 | 44.21 | 61.64 | |||||||||||||
1988 | 39.31 | 46.16 | 54.29 | 63.12 | 70.79 | 78.53 | 77.66 | 79.31 | 72.50 | 64.66 | 54.83 | 43.66 | 62.07 | |||||||||||||
1989 | 45.84 | 43.30 | 56.85 | 66.80 | 76.87 | 78.67 | 83.06 | 80.47 | 71.65 | 65.13 | 53.52 | 38.66 | 63.40 | |||||||||||||
1990 | 46.37 | 50.52 | 54.85 | 64.68 | 72.95 | 86.48 | 78.98 | 78.55 | 74.98 | 63.76 | 55.55 | 43.37 | 64.25 | |||||||||||||
1991 | 41.66 | 50.57 | 56.84 | 65.88 | 76.56 | 79.45 | 79.16 | 77.53 | 69.87 | 64.55 | 47.68 | 45.77 | 62.96 | |||||||||||||
1992 | 41.24 | 50.83 | 57.21 | 63.18 | 68.00 | 76.95 | 79.84 | 76.89 | 74.82 | 66.35 | 49.12 | 46.50 | 62.58 | |||||||||||||
1993 | 43.34 | 47.07 | 54.56 | 63.28 | 71.13 | 78.87 | 83.44 | 81.03 | 71.90 | 61.85 | 49.50 | 46.90 | 62.74 | |||||||||||||
1994 | 44.11 | 47.95 | 57.11 | 63.28 | 71.97 | 84.45 | 83.31 | 81.76 | 73.60 | 65.97 | 55.47 | 48.65 | 64.80 | |||||||||||||
1995 | 45.82 | 51.77 | 54.52 | 63.92 | 71.81 | 78.08 | 82.94 | 81.77 | 73.90 | 66.52 | 54.83 | 46.32 | 64.35 | |||||||||||||
1996 | 44.58 | 51.29 | 51.24 | 63.32 | 81.13 | 82.92 | 84.50 | 79.97 | 72.25 | 64.02 | 52.90 | 47.39 | 64.62 | |||||||||||||
1997 | 41.39 | 44.77 | 57.85 | 59.05 | 70.84 | 77.93 | 82.76 | 81.87 | 77.02 | 65.00 | 50.20 | 42.02 | 62.56 | |||||||||||||
1998 | 48.06 | 49.27 | 53.81 | 62.15 | 79.00 | 85.62 | 86.89 | 81.52 | 79.60 | 68.98 | 56.37 | 44.02 | 66.27 | |||||||||||||
1999 | 47.95 | 54.82 | 55.85 | 65.00 | 73.82 | 79.28 | 82.53 | 84.27 | 74.95 | 63.87 | 56.47 | 45.02 | 65.32 | |||||||||||||
2000 | 47.34 | 55.31 | 59.08 | 67.38 | 78.76 | 78.67 | 85.35 | 83.18 | 77.75 | 64.16 | 46.97 | 40.42 | 65.36 | |||||||||||||
2001 | 41.47 | 48.46 | 51.94 | 66.87 | 75.89 | 83.75 | 86.65 | 81.95 | 75.05 | 65.92 | 54.27 | 44.73 | 64.74 | |||||||||||||
2002 | 45.87 | 44.39 | 52.47 | 66.15 | 74.08 | 82.22 | 82.37 | 85.31 | 75.75 | 62.27 | 49.85 | 43.76 | 63.71 | |||||||||||||
2003 | 44.27 | 46.43 | 56.98 | 67.12 | 75.95 | 79.05 | 82.61 | 83.31 | 75.02 | 67.31 | 55.20 | 46.76 | 65.00 | |||||||||||||
2004 | 46.79 | 45.07 | 58.87 | 62.55 | 74.98 | 80.43 | 81.19 | 79.06 | 73.08 | 65.06 | 50.45 | 44.24 | 63.48 | |||||||||||||
2005 | 47.95 | 47.70 | 52.84 | 62.60 | 71.56 | 81.28 | 81.53 | 78.79 | 77.92 | 63.76 | 54.33 | 44.58 | 63.74 | |||||||||||||
2006 | 49.31 | 48.43 | 57.40 | 69.10 | 77.10 | 82.03 | 84.76 | 81.03 | 71.42 | 64.19 | 54.65 | 43.74 | 65.26 | |||||||||||||
2007 | 38.68 | 48.27 | 58.23 | 60.48 | 68.42 | 77.22 | 78.69 | 80.29 | 76.87 | 68.48 | 53.92 | 45.98 | 62.96 | |||||||||||||
2008 | 42.77 | 51.05 | 56.05 | 65.47 | 75.19 | 84.40 | 81.35 | 79.21 | 70.90 | 64.03 | 52.65 | 45.90 | 64.08 | |||||||||||||
2009 | 44.94 | 52.75 | 58.55 | 66.07 | 74.58 | 82.22 | 82.45 | 82.52 | 72.58 | 62.48 | 54.33 | 41.10 | 64.55 | |||||||||||||
2010 | 41.98 | 43.75 | 54.65 | 63.37 | 71.69 | 84.07 | 79.71 | 83.68 | 76.32 | 66.08 | 52.97 | 47.06 | 63.78 | |||||||||||||
2011 | 42.48 | 45.71 | 61.87 | 71.55 | 75.21 | 87.98 | 86.95 | 87.77 | 76.60 | 66.90 | 54.42 | 41.89 | 66.61 | |||||||||||||
2012 | 47.53 | 49.17 | 61.10 | 71.78 | 76.10 | 84.42 | 83.61 | 84.31 | 75.78 | 64.39 | 58.00 | 47.87 | 67.00 | |||||||||||||
2013 | 44.56 | 48.34 | 58.19 | 64.47 | 74.26 | 83.60 | 81.47 | 84.24 | 77.55 | 66.27 | 51.13 | 43.27 | 64.78 | |||||||||||||
2014 | 44.61 | 48.29 | 56.35 | 66.87 | 73.81 | 82.95 | 83.39 | 83.92 | 74.92 | 69.45 | 51.25 | 49.13 | 65.41 | |||||||||||||
2015 | 41.71 | 46.84 | 54.73 | 66.23 | 71.58 | 79.75 | 84.74 | 84.58 | 79.82 | 67.65 | 54.82 | 47.79 | 65.02 | |||||||||||||
2016 | 45.82 | 52.59 | 60.74 | 67.00 | 73.77 | 81.03 | 88.18 | 82.10 | 77.07 | 72.56 | 58.97 | 47.55 | 67.28 | |||||||||||||
2017 | 47.77 | 57.20 | 64.48 | 67.77 | 73.79 | 83.97 | 84.23 | 80.97 | 77.33 | 66.35 | 59.27 | 46.11 | 67.44 | |||||||||||||
2018 | 43.69 | 51.41 | 62.19 | 65.33 | 82.08 | 85.90 | 85.87 | 84.24 | 75.22 | 63.60 | 50.92 | 45.81 | 66.36 | |||||||||||||
2019 | 46.47 | 51.14 | 54.19 | 66.65 | 71.26 | 81.08 | 83.97 | 87.89 | 81.53 | 64.55 | 53.18 | 49.53 | 65.95 | |||||||||||||
2020 | 48.85 | 48.21 | 61.52 | 66.55 | 77.60 | 82.20 | 87.44 | 85.87 | 72.30 | 64.89 | 57.57 | 45.24 | 66.52 | |||||||||||||
2021 | 43.73 | 40.45 | 57.44 | 61.37 | 71.87 | 80.07 | 78.97 | 79.77 | 77.62 | 68.44 | 55.48 | 56.08 | 64.27 | |||||||||||||
2022 | 42.73 | 42.29 | 54.29 | 68.97 | 79.73 | 83.35 | 87.18 | 81.87 | 76.07 | 64.08 | 49.70 | 47.94 | 64.85 | |||||||||||||
2023 | 47.11 | 48.86 | 57.37 | 64.03 | 74.10 | 84.83 | 87.48 | 87.55 | 81.30 | 66.60 | 54.68 | 49.10 | 66.92 | |||||||||||||
2024 | 41.82 | 53.48 | 57.41 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.90 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.81 | 48.18 | 55.68 | 64.44 | 72.96 | 80.37 | 82.16 | 81.34 | 74.74 | 65.09 | 52.84 | 45.51 | 63.95 | |||||||||||||
S.D. | 3.30 | 3.45 | 3.51 | 3.10 | 2.96 | 2.64 | 2.56 | 2.60 | 2.81 | 2.66 | 3.07 | 3.04 | 1.44 | |||||||||||||
SKEW | -0.19 | 0.27 | -0.24 | 0.12 | 0.62 | 0.56 | 0.10 | 0.35 | 0.10 | 0.13 | -0.22 | -0.03 | 0.37 | |||||||||||||
MAX | 51.90 | 57.20 | 64.48 | 71.78 | 82.08 | 87.98 | 88.18 | 87.89 | 82.05 | 72.56 | 59.27 | 56.08 | 67.44 | |||||||||||||
MIN | 35.23 | 40.45 | 47.47 | 57.03 | 67.26 | 75.00 | 75.77 | 74.35 | 67.78 | 58.35 | 46.40 | 37.44 | 60.96 | |||||||||||||
YRS | 94 | 94 | 94 | 93 | 93 | 93 | 94 | 94 | 94 | 94 | 94 | 94 | 92 |