YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.48 | 93.47 | 91.08 | 85.39 | c | 75.41 | b | 61.11 | b | 52.62 | a | 77.79 | e | |||
1934 | 52.21 | 58.72 | a | 67.97 | a | 72.72 | 80.82 | a | 81.66 | b | 92.85 | 88.90 | a | 82.78 | a | 73.05 | a | 58.98 | 53.93 | c | 72.05 | |||||
1935 | 51.57 | a | 55.75 | 55.46 | c | 66.40 | 71.06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.05 | g | |||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | 52.73 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.38 | 55.06 | 56.06 | i | |||
1938 | 52.68 | 54.38 | 57.76 | 66.57 | 73.68 | 83.38 | 88.85 | 88.21 | 84.45 | 69.19 | 53.15 | 53.60 | 68.82 | |||||||||||||
1939 | 50.73 | 47.00 | 60.92 | 70.15 | 77.48 | 84.65 | ----- | z | 90.29 | 82.00 | ----- | z | ----- | z | ----- | z | 70.40 | d | ||||||||
1940 | ----- | z | ----- | z | 63.58 | ----- | z | 80.71 | 89.10 | 92.06 | 91.10 | 85.02 | 72.73 | 57.68 | 55.60 | 76.40 | c | |||||||||
1941 | 53.29 | 57.34 | 58.45 | 61.60 | 74.47 | 80.55 | 88.61 | 86.23 | 78.93 | a | 66.45 | 59.98 | 52.31 | 68.18 | ||||||||||||
1942 | 52.55 | 51.02 | 57.05 | 64.83 | 73.55 | a | 83.27 | 91.87 | 87.66 | 83.17 | a | 70.48 | 61.97 | 54.53 | 69.33 | |||||||||||
1943 | 51.89 | 57.62 | 63.28 | a | 70.67 | 77.55 | 83.55 | 91.02 | 87.44 | 84.00 | 71.28 | a | 59.43 | 52.31 | 70.84 | |||||||||||
1944 | 49.89 | 51.67 | 55.97 | 63.88 | 73.81 | 79.63 | 88.61 | 90.31 | 83.02 | 73.29 | 56.57 | 51.92 | 68.21 | |||||||||||||
1945 | 50.48 | 54.54 | ----- | z | ----- | z | ----- | z | ----- | z | 91.02 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.35 | i | |||
1946 | ----- | z | 52.07 | 60.74 | 72.27 | 75.82 | 86.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.42 | g | |||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.29 | 49.29 | k | |
1948 | 51.66 | 52.55 | 56.34 | 69.22 | 76.32 | 84.23 | 91.16 | 91.34 | 85.55 | 73.61 | 54.73 | 50.03 | 69.73 | |||||||||||||
1949 | 43.68 | 51.79 | 59.06 | 70.57 | 76.00 | 85.25 | 90.40 | 87.60 | 86.02 | 68.47 | 64.33 | 51.32 | 69.54 | |||||||||||||
1950 | 49.68 | 58.89 | 62.48 | 72.47 | 75.98 | 84.83 | 90.48 | 90.24 | 82.13 | 78.23 | 64.17 | 57.47 | 72.25 | |||||||||||||
1951 | 51.82 | 56.09 | 60.73 | 67.75 | 76.65 | 82.95 | 92.48 | 87.21 | 83.20 | 71.84 | 58.62 | 52.05 | 70.12 | |||||||||||||
1952 | 51.40 | 54.21 | 55.58 | 67.50 | 79.58 | 84.48 | 89.82 | 90.90 | 85.78 | 76.71 | 57.10 | 50.98 | 70.34 | |||||||||||||
1953 | 54.50 | 53.27 | 61.47 | 66.62 | 70.92 | 84.95 | 90.81 | 89.27 | 84.05 | 71.63 | 61.42 | 49.26 | 69.85 | |||||||||||||
1954 | 52.23 | 61.07 | 58.32 | 71.53 | 78.18 | 84.63 | 91.31 | 88.44 | 86.22 | 74.90 | 64.57 | 53.98 | 72.11 | |||||||||||||
1955 | 48.68 | 50.82 | 61.60 | 66.63 | 75.63 | 83.70 | 86.66 | 86.56 | 82.87 | 75.63 | 59.10 | 55.82 | 69.48 | |||||||||||||
1956 | 55.98 | 50.86 | 61.60 | 66.13 | 76.87 | 86.82 | 87.90 | 85.71 | 84.52 | 69.73 | 57.82 | 53.24 | 69.76 | |||||||||||||
1957 | 53.95 | 61.41 | 61.77 | 66.48 | 72.85 | 87.02 | 91.39 | 88.00 | 83.13 | 70.55 | 56.37 | 54.95 | 70.66 | |||||||||||||
1958 | 52.97 | 57.96 | 57.00 | 66.65 | 81.27 | 89.12 | 93.55 | 92.66 | 86.55 | 76.60 | 61.40 | 56.00 | 72.64 | |||||||||||||
1959 | 53.73 | 53.88 | 63.52 | 73.43 | 76.26 | 90.30 | 93.95 | 88.08 | 83.30 | 72.68 | 60.92 | 53.61 | 71.97 | |||||||||||||
1960 | 48.45 | 51.43 | 65.03 | 70.35 | 77.74 | 89.97 | 92.35 | 89.69 | 85.85 | 70.52 | 60.48 | 50.44 | 71.03 | |||||||||||||
1961 | 54.18 | 55.55 | 59.55 | 69.13 | 75.55 | 88.53 | 91.63 | 88.55 | 80.53 | 69.61 | 57.05 | 52.24 | 70.18 | |||||||||||||
1962 | 51.42 | 55.70 | 56.00 | 72.32 | 73.42 | 83.10 | 90.19 | 91.73 | 84.30 | 71.55 | 61.90 | 55.03 | 70.55 | |||||||||||||
1963 | 48.39 | 60.14 | 60.95 | 65.82 | 79.98 | 81.68 | 92.02 | 87.06 | 85.03 | 76.19 | 61.87 | 51.79 | 70.91 | |||||||||||||
1964 | 46.71 | 49.22 | 56.52 | 65.13 | 73.63 | 82.53 | 90.55 | 86.15 | 81.22 | a | 74.90 | 55.50 | 51.94 | 67.83 | ||||||||||||
1965 | 52.65 | 52.34 | 56.08 | 63.40 | 71.79 | 78.95 | 91.00 | 88.98 | 79.13 | 73.79 | 62.08 | 52.84 | 68.59 | |||||||||||||
1966 | 48.21 | 49.73 | 61.15 | 69.75 | 80.06 | 86.73 | 93.02 | 90.92 | 82.82 | 70.87 | 60.52 | 52.02 | 70.48 | |||||||||||||
1967 | 50.65 | 55.70 | 62.76 | 62.35 | 75.13 | 81.10 | 91.56 | 91.02 | 84.78 | 73.42 | 63.83 | 48.21 | 70.04 | |||||||||||||
1968 | 52.37 | 59.64 | 59.89 | 66.67 | 76.61 | 86.17 | 90.23 | 86.47 | 83.57 | 72.66 | 59.15 | 49.47 | 70.24 | |||||||||||||
1969 | 54.89 | 52.98 | 56.87 | 68.48 | 78.27 | 84.18 | 93.10 | 94.39 | 86.02 | 69.42 | 62.12 | 54.84 | 71.30 | |||||||||||||
1970 | 52.08 | 60.18 | 59.45 | 64.70 | 79.56 | 88.08 | 95.00 | 92.53 | 82.23 | 69.05 | 61.38 | 52.60 | 71.40 | |||||||||||||
1971 | 52.18 | 56.25 | 63.23 | 66.50 | 73.27 | 85.23 | 94.89 | 89.61 | 85.55 | 69.27 | 59.65 | 50.18 | 70.48 | |||||||||||||
1972 | 51.35 | 59.12 | 70.55 | 71.38 | 78.23 | 87.77 | 94.34 | 89.85 | 84.75 | 71.90 | 58.10 | 52.08 | 72.45 | |||||||||||||
1973 | 51.15 | 57.50 | 56.61 | 67.18 | 80.87 | 88.05 | 93.50 | 93.34 | 84.72 | 74.44 | 60.75 | 55.39 | 71.96 | |||||||||||||
1974 | 54.00 | 56.68 | 64.53 | 70.62 | 80.13 | 92.17 | 92.44 | 91.21 | 87.18 | 75.84 | 61.47 | 50.56 | 73.07 | |||||||||||||
1975 | 52.23 | 54.00 | 58.95 | 62.57 | 76.66 | 86.55 | 94.24 | 91.85 | 86.15 | 72.87 | 60.87 | 54.81 | 70.98 | |||||||||||||
1976 | 55.40 | 60.72 | 61.50 | 68.65 | 80.69 | 87.87 | 91.60 | 90.68 | 82.95 | 73.97 | 64.05 | 55.55 | 72.80 | |||||||||||||
1977 | 53.77 | 61.68 | 60.77 | 73.52 | 75.68 | 91.35 | 94.94 | 94.10 | 87.52 | 78.71 | 65.80 | 59.85 | 74.81 | |||||||||||||
1978 | 56.60 | 58.62 | 65.53 | 69.20 | 78.45 | 90.93 | 94.61 | 91.40 | 86.25 | 78.56 | 61.48 | 51.69 | 73.61 | |||||||||||||
1979 | 50.05 | 55.70 | 60.42 | 70.05 | 78.02 | 89.47 | 93.82 | 89.40 | 90.22 | 77.19 | 58.18 | 55.84 | 72.36 | |||||||||||||
1980 | 56.58 | 60.52 | 60.68 | 69.83 | 75.95 | 88.90 | 95.65 | 92.18 | 87.30 | 75.55 | 64.10 | 61.26 | 74.04 | |||||||||||||
1981 | 59.15 | 61.34 | 63.74 | 75.97 | 80.45 | 93.38 | 95.19 | 95.76 | 89.17 | 73.65 | 66.10 | 58.58 | 76.04 | |||||||||||||
1982 | 53.89 | 60.11 | 62.35 | 72.47 | 80.35 | 88.05 | 93.65 | 93.69 | 86.70 | 73.50 | 61.82 | 54.11 | 73.39 | |||||||||||||
1983 | 56.02 | 58.30 | 62.19 | 66.62 | 80.55 | 88.62 | 95.47 | 92.55 | 90.93 | 77.19 | 62.38 | 57.16 | 74.00 | |||||||||||||
1984 | 57.42 | 60.07 | 67.65 | 70.65 | 86.97 | 88.92 | 91.69 | 91.23 | 87.45 | 71.35 | 61.90 | 53.68 | 74.08 | |||||||||||||
1985 | 54.26 | 57.39 | 62.76 | 75.13 | 84.19 | 92.32 | 94.94 | 94.45 | 82.28 | 75.08 | 61.33 | 55.89 | 74.17 | |||||||||||||
1986 | 61.39 | 60.98 | 69.32 | 74.17 | 82.26 | 92.83 | 92.24 | 94.44 | 84.10 | 74.68 | 65.02 | 56.40 | 75.65 | |||||||||||||
1987 | 54.66 | 59.73 | 63.37 | 77.88 | 82.55 | 92.98 | 93.10 | 92.19 | 86.85 | 80.87 | 63.13 | 52.61 | 74.99 | |||||||||||||
1988 | 55.05 | 62.47 | 66.24 | 72.95 | 81.40 | 93.12 | 96.15 | 93.89 | 87.40 | 82.42 | 64.42 | 55.69 | 75.93 | |||||||||||||
1989 | 54.37 | 61.82 | 70.06 | 80.03 | 83.08 | 92.08 | 97.40 | 93.65 | 89.83 | 77.34 | 66.38 | 56.92 | 76.91 | |||||||||||||
1990 | 55.56 | 56.57 | 67.13 | 76.13 | 81.08 | 93.80 | 93.63 | 90.76 | 87.55 | 78.71 | 65.93 | 53.60 | 75.04 | |||||||||||||
1991 | 55.87 | 65.96 | 60.26 | 72.12 | 79.73 | 87.80 | 95.05 | 94.45 | 88.50 | 80.19 | 63.52 | 57.26 | 75.06 | |||||||||||||
1992 | 56.31 | 62.14 | 64.69 | 76.97 | 83.13 | 90.12 | 92.77 | 92.26 | 90.48 | 79.79 | 61.47 | 53.76 | 75.32 | |||||||||||||
1993 | 58.19 | 58.18 | 65.63 | 73.77 | 83.68 | 89.58 | 92.85 | 91.55 | 87.93 | 76.68 | 61.37 | 56.21 | 74.63 | |||||||||||||
1994 | 56.76 | 58.02 | 64.92 | 71.77 | 78.31 | 92.12 | 93.85 | 95.23 | 86.87 | 73.08 | 58.00 | 55.32 | 73.69 | |||||||||||||
1995 | 54.47 | 63.14 | 64.29 | 68.38 | 76.26 | 86.17 | 94.48 | 94.61 | 89.18 | 76.19 | 66.63 | 56.95 | 74.23 | |||||||||||||
1996 | 55.84 | 62.33 | 65.06 | 74.03 | 82.98 | 91.92 | 95.21 | 94.06 | 84.22 | 74.85 | 64.50 | 56.47 | 75.12 | |||||||||||||
1997 | 55.71 | 57.77 | 69.44 | 70.88 | 86.26 | 87.73 | 93.81 | 92.90 | 90.02 | 74.66 | 64.07 | 52.89 | 74.68 | |||||||||||||
1998 | 56.60 | 54.07 | 61.90 | 66.67 | 76.24 | 85.33 | 94.53 | 94.66 | 87.82 | 74.08 | 62.68 | 54.39 | 72.41 | |||||||||||||
1999 | 56.77 | 60.32 | 64.94 | 65.90 | 79.79 | 88.82 | 91.24 | 93.00 | 87.35 | 79.27 | 68.02 | 55.24 | 74.22 | |||||||||||||
2000 | 58.03 | 60.84 | 63.13 | 75.22 | 84.84 | 91.00 | 95.03 | 92.44 | 90.23 | 72.50 | 56.87 | 57.27 | 74.78 | |||||||||||||
2001 | 54.06 | 56.86 | 65.60 | 71.67 | 86.89 | 91.98 | 94.42 | 94.66 | 92.18 | 79.35 | 68.37 | 53.76 | 75.82 | |||||||||||||
2002 | 55.94 | 61.30 | 65.21 | 76.62 | 81.68 | 93.37 | 96.00 | 95.06 | 89.78 | 75.11 | 66.87 | 55.19 | 76.01 | |||||||||||||
2003 | 61.95 | 59.38 | 64.73 | 70.23 | 83.32 | 91.73 | 97.63 | 94.60 | 90.73 | 82.73 | 61.88 | 56.79 | 76.31 | |||||||||||||
2004 | 57.53 | 55.84 | 72.26 | 72.70 | 83.37 | 91.18 | 94.47 | 92.69 | 88.10 | 75.13 | 60.95 | 55.98 | 75.02 | |||||||||||||
2005 | 57.77 | 59.23 | 63.90 | 72.23 | 82.71 | 90.42 | 97.23 | 92.21 | 89.58 | 78.24 | 66.27 | 56.82 | 75.55 | |||||||||||||
2006 | 57.71 | 61.80 | 62.31 | 72.68 | 84.68 | 94.62 | 96.53 | 92.53 | 85.62 | 76.06 | 67.12 | 54.31 | 75.50 | |||||||||||||
2007 | 52.92 | 59.88 | 68.71 | 73.67 | 84.61 | 92.73 | 95.82 | 96.19 | 90.35 | 78.21 | 70.03 | 53.19 | 76.36 | |||||||||||||
2008 | 54.68 | 58.21 | 66.65 | 74.00 | 78.52 | 93.15 | 94.89 | 92.94 | 89.85 | 77.85 | 67.13 | 55.81 | 75.31 | |||||||||||||
2009 | 58.69 | 60.70 | 67.45 | 71.40 | 86.15 | 88.70 | 98.27 | 95.19 | 90.00 | 74.42 | 67.43 | 53.66 | 76.01 | |||||||||||||
2010 | 57.42 | 59.12 | 62.74 | 70.60 | 78.24 | 91.23 | 96.73 | 94.02 | 91.50 | 77.71 | 63.02 | 59.58 | 75.16 | |||||||||||||
2011 | 55.66 | 55.23 | 67.82 | 74.25 | 78.76 | 90.77 | 95.21 | 98.26 | 91.37 | 78.81 | 63.47 | 53.19 | 75.23 | |||||||||||||
2012 | 58.69 | 60.31 | 65.87 | 75.10 | 84.52 | 93.75 | 93.89 | 95.32 | 88.65 | 78.84 | 68.42 | 56.74 | 76.67 | |||||||||||||
2013 | 53.60 | 57.12 | 69.52 | 75.33 | 83.94 | 94.80 | 95.69 | 94.69 | 88.70 | 74.53 | 66.67 | 56.29 | 75.91 | |||||||||||||
2014 | 59.90 | 64.43 | 69.00 | 74.83 | 83.15 | 93.18 | 96.48 | 91.56 | 89.00 | 79.98 | 66.08 | 57.73 | 77.11 | |||||||||||||
2015 | 58.60 | 65.62 | 72.19 | 74.27 | 78.74 | 94.02 | 94.66 | 96.65 | 89.87 | 79.40 | 62.10 | 54.18 | 76.69 | |||||||||||||
2016 | 55.66 | 65.72 | 69.48 | 73.48 | 79.90 | 94.78 | 97.13 | 91.87 | 86.58 | 80.97 | 67.23 | 57.89 | 76.73 | |||||||||||||
2017 | 55.08 | 61.91 | 70.66 | 75.27 | 81.82 | 94.65 | 95.00 | 94.00 | 87.85 | 80.48 | 71.18 | 59.11 | 77.25 | |||||||||||||
2018 | 61.18 | 59.75 | 66.84 | 77.43 | 83.52 | 92.35 | 96.53 | 94.03 | 91.85 | 73.76 | 63.80 | 55.74 | 76.40 | |||||||||||||
2019 | 56.00 | 54.12 | 65.61 | 75.27 | 76.24 | 91.07 | 96.68 | 96.79 | 89.12 | 75.76 | 66.43 | 56.06 | 74.93 | |||||||||||||
2020 | 56.84 | 58.95 | 64.39 | 74.22 | 86.18 | 92.03 | 98.94 | 99.06 | 91.52 | 80.87 | 67.75 | 55.77 | 77.21 | |||||||||||||
2021 | 56.27 | 60.96 | 64.13 | 76.67 | 83.13 | 95.33 | 93.68 | 92.56 | 89.22 | 74.77 | 70.13 | 59.19 | 76.34 | |||||||||||||
2022 | 57.74 | 59.14 | 66.92 | 76.20 | 84.13 | 94.22 | 96.74 | 93.34 | 91.10 | 77.40 | 60.20 | 55.50 | 76.05 | |||||||||||||
2023 | 53.89 | 57.12 | 61.92 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.51 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 54.27 | 57.62 | 63.16 | 70.80 | 79.33 | 88.61 | 93.50 | 91.84 | 86.52 | 75.05 | 62.48 | 54.49 | 73.25 | |||||||||||||
S.D. | 3.35 | 3.98 | 4.21 | 4.08 | 3.94 | 4.12 | 2.50 | 2.93 | 3.14 | 3.56 | 3.76 | 2.63 | 2.66 | |||||||||||||
SKEW | -0.28 | -0.31 | 0.06 | -0.19 | -0.06 | -0.34 | -0.29 | -0.12 | -0.19 | -0.02 | 0.01 | -0.04 | -0.30 | |||||||||||||
MAX | 61.95 | 65.96 | 72.26 | 80.03 | 86.97 | 95.33 | 98.94 | 99.06 | 92.18 | 82.73 | 71.18 | 61.26 | 77.25 | |||||||||||||
MIN | 43.68 | 47.00 | 55.46 | 61.60 | 70.92 | 78.95 | 86.66 | 85.71 | 78.93 | 66.45 | 53.15 | 48.21 | 67.83 | |||||||||||||
YRS | 85 | 87 | 85 | 84 | 85 | 85 | 84 | 84 | 84 | 83 | 84 | 85 | 81 |