YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.27 | s | 67.16 | 56.97 | 48.53 | a | 57.55 | i | ||
1987 | 46.84 | 54.11 | 58.97 | 71.63 | 77.74 | 86.23 | 89.84 | 87.29 | 80.43 | 74.84 | 61.60 | 48.87 | 69.87 | |||||||||||||
1988 | 45.58 | 56.10 | 62.90 | 70.77 | 78.84 | 87.33 | 87.39 | 88.71 | 81.87 | 74.60 | a | 64.93 | 53.16 | 71.02 | ||||||||||||
1989 | 57.68 | 49.21 | 68.87 | 76.60 | 83.39 | 81.52 | a | 89.61 | 86.35 | 79.30 | 77.13 | 65.03 | 46.13 | 71.74 | ||||||||||||
1990 | 54.06 | 58.79 | 59.58 | 70.50 | 79.90 | 97.10 | 86.52 | 87.26 | 83.53 | 74.40 | a | 63.37 | 50.45 | b | 72.12 | |||||||||||
1991 | 44.84 | 62.00 | 65.90 | a | 75.97 | 83.48 | 87.27 | 86.55 | 86.60 | a | 74.70 | 76.39 | 52.72 | a | 50.06 | 70.54 | ||||||||||
1992 | 47.35 | 59.61 | a | 67.87 | 72.80 | 75.32 | 82.90 | 89.87 | 84.65 | 82.93 | 77.35 | 55.53 | 47.84 | 70.34 | ||||||||||||
1993 | 44.77 | 52.11 | 63.19 | 72.48 | a | 79.68 | 88.17 | 90.90 | 89.52 | 82.80 | 71.06 | 56.40 | 55.58 | 70.56 | ||||||||||||
1994 | 53.55 | 55.64 | 64.48 | 72.10 | 76.35 | 93.33 | 91.29 | 88.23 | 84.77 | 73.90 | 61.40 | 56.35 | 72.62 | |||||||||||||
1995 | 51.39 | 61.36 | 61.35 | 69.77 | 76.39 | 85.57 | 91.71 | 88.58 | 79.50 | 74.94 | 65.64 | b | 53.87 | a | 71.67 | |||||||||||
1996 | 54.52 | 60.32 | a | 61.35 | 73.70 | 87.06 | 88.70 | 88.61 | 85.48 | 78.63 | 72.90 | 61.17 | 57.26 | 72.48 | ||||||||||||
1997 | 46.71 | 49.89 | 68.06 | 63.03 | 75.94 | 85.17 | 91.32 | 87.71 | 84.87 | 73.45 | 57.73 | 47.03 | 69.24 | |||||||||||||
1998 | 55.87 | a | 53.39 | 59.10 | 70.47 | 87.32 | 92.97 | 94.23 | 88.03 | 88.73 | 75.16 | 62.97 | 52.42 | 73.39 | ||||||||||||
1999 | 56.35 | 63.36 | 59.45 | 71.00 | 76.16 | 85.60 | 89.87 | 92.07 | a | 79.70 | 74.94 | 69.73 | 50.57 | a | 72.40 | |||||||||||
2000 | 57.23 | 64.66 | 65.90 | 73.27 | 87.23 | a | 82.30 | 92.45 | 92.37 | a | 88.63 | 70.35 | 53.20 | 46.19 | 72.82 | |||||||||||
2001 | 44.10 | 56.14 | 56.90 | 76.70 | 80.81 | 91.27 | 95.10 | 89.61 | 83.43 | 76.00 | 62.53 | 55.00 | 72.30 | |||||||||||||
2002 | 53.19 | 54.11 | 62.00 | 75.10 | a | 82.55 | 90.47 | 88.94 | 90.55 | 83.37 | 66.06 | 56.87 | 49.84 | 71.09 | ||||||||||||
2003 | 54.87 | 53.29 | 66.94 | 76.67 | 83.45 | 84.30 | 92.74 | 91.61 | 79.33 | 75.94 | 61.90 | 57.03 | 73.17 | |||||||||||||
2004 | 53.77 | 51.34 | 65.19 | 69.20 | 84.71 | 86.07 | 86.74 | 84.52 | 81.10 | 71.94 | 52.80 | 53.68 | 70.09 | |||||||||||||
2005 | 53.71 | 55.07 | 59.94 | 71.37 | 77.35 | 89.37 | 89.00 | 86.10 | 87.07 | 73.32 | 66.40 | 53.71 | 71.87 | |||||||||||||
2006 | 61.03 | 58.43 | 64.74 | 78.37 | 86.97 | 91.80 | 93.55 | 88.39 | 78.33 | 72.52 | 65.73 | 50.97 | 74.24 | |||||||||||||
2007 | 41.71 | 54.14 | 66.68 | 65.87 | 76.10 | 84.87 | 87.97 | 90.52 | 85.10 | 79.52 | 65.30 | 51.10 | 70.74 | |||||||||||||
2008 | 53.30 | a | 59.93 | 66.16 | 72.87 | 81.68 | 93.20 | 86.55 | 86.32 | 78.60 | 72.74 | 64.77 | 54.42 | 72.54 | ||||||||||||
2009 | 55.32 | 63.04 | 67.10 | 71.97 | 77.35 | 87.83 | 88.81 | 89.61 | 78.73 | 69.13 | 65.60 | 44.87 | 71.61 | |||||||||||||
2010 | 50.65 | 44.79 | 62.32 | 72.80 | 79.16 | 92.33 | 87.00 | 91.61 | 87.83 | 77.32 | 64.43 | 57.61 | 72.32 | |||||||||||||
2011 | 54.13 | 54.07 | 70.19 | 80.87 | 84.10 | 98.03 | 97.77 | 98.06 | 85.10 | 75.16 | 63.43 | 44.29 | 75.43 | |||||||||||||
2012 | 59.74 | 54.10 | 71.84 | 80.87 | 85.16 | 91.73 | 93.06 | 92.68 | 84.77 | 73.32 | 69.57 | 56.87 | 76.14 | |||||||||||||
2013 | 51.68 | 54.29 | 65.94 | 70.93 | 82.23 | 89.87 | 85.35 | 87.84 | 85.17 | 73.87 | 57.77 | 49.16 | 71.17 | |||||||||||||
2014 | 53.42 | 53.14 | 63.61 | 73.40 | 80.06 | 86.00 | 85.06 | 87.94 | 78.07 | 75.71 | 57.07 | 51.94 | 70.45 | |||||||||||||
2015 | 46.52 | 56.11 | 62.19 | 73.30 | 73.68 | 85.73 | 87.35 | 87.55 | 86.37 | 72.03 | 61.77 | 54.52 | 70.59 | |||||||||||||
2016 | 51.29 | 61.21 | 68.87 | 71.47 | 77.16 | 87.80 | 93.90 | 86.16 | 80.47 | 78.32 | 65.87 | 52.00 | 72.88 | |||||||||||||
2017 | 51.42 | 63.75 | 70.68 | 71.27 | 78.97 | 90.00 | 89.35 | 82.39 | 80.30 | 72.61 | 66.93 | 53.77 | 72.62 | |||||||||||||
2018 | 52.55 | 57.86 | 67.71 | 71.03 | 87.87 | 91.77 | 91.13 | 88.87 | 81.20 | 67.13 | 55.80 | 51.10 | 72.00 | |||||||||||||
2019 | 52.77 | 57.29 | 59.06 | 72.27 | 75.55 | 86.60 | 90.77 | 93.90 | 86.70 | 66.23 | 56.67 | 55.55 | 71.11 | |||||||||||||
2020 | 54.52 | 50.59 | 64.13 | 71.63 | 85.13 | 90.77 | 94.90 | 93.42 | 81.70 | 72.16 | 66.37 | 53.97 | 73.27 | |||||||||||||
2021 | 49.03 | 47.07 | 64.16 | 68.10 | 76.58 | 87.17 | 85.03 | 86.97 | 86.13 | 76.45 | 65.30 | 63.65 | 71.30 | |||||||||||||
2022 | 51.84 | 51.61 | 64.87 | 74.77 | 86.13 | 90.63 | 95.97 | 87.39 | 84.00 | 69.77 | 56.37 | 51.84 | 72.10 | |||||||||||||
2023 | 54.90 | 56.46 | 64.45 | 70.47 | 78.42 | 86.23 | 92.26 | 94.39 | 86.77 | 74.13 | 63.13 | 56.10 | 73.14 | |||||||||||||
2024 | 47.58 | 60.34 | 62.89 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.94 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.84 | 56.02 | 64.36 | 72.58 | 80.70 | 88.59 | 90.23 | 88.90 | 82.70 | 73.42 | 61.60 | 52.30 | 71.97 | |||||||||||||
S.D. | 4.50 | 4.75 | 3.62 | 3.55 | 4.17 | 3.80 | 3.24 | 3.17 | 3.44 | 3.28 | 4.71 | 4.05 | 1.45 | |||||||||||||
SKEW | -0.32 | -0.13 | -0.01 | 0.15 | 0.23 | 0.43 | 0.30 | 0.66 | -0.10 | -0.63 | -0.33 | 0.16 | 0.72 | |||||||||||||
MAX | 61.03 | 64.66 | 71.84 | 80.87 | 87.87 | 98.03 | 97.77 | 98.06 | 88.73 | 79.52 | 69.73 | 63.65 | 76.14 | |||||||||||||
MIN | 41.71 | 44.79 | 56.90 | 63.03 | 73.68 | 81.52 | 85.03 | 82.39 | 74.70 | 66.06 | 52.72 | 44.29 | 69.24 | |||||||||||||
YRS | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 37 |