YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.77 | 55.17 | 46.07 | b | 55.67 | i | ||
1990 | 49.00 | 49.25 | 59.65 | 65.47 | 66.71 | 73.40 | 85.23 | 82.48 | 78.80 | 64.65 | 53.83 | 41.00 | 64.12 | |||||||||||||
1991 | 45.03 | a | 58.29 | 53.61 | 59.20 | 62.61 | 70.47 | 84.26 | 83.68 | 82.77 | 70.55 | 56.33 | 47.94 | 64.56 | ||||||||||||
1992 | 51.26 | 58.90 | 63.19 | 66.37 | ----- | z | 79.60 | 83.06 | 86.13 | h | 79.00 | 68.61 | 54.40 | 45.61 | 65.00 | b | ||||||||||
1993 | 44.19 | 48.11 | 59.68 | 59.27 | 69.97 | 71.67 | 74.81 | 79.42 | 80.23 | 68.52 | 48.07 | 45.39 | 62.44 | |||||||||||||
1994 | 49.81 | 49.68 | 60.68 | 62.57 | 69.52 | 71.90 | 84.81 | 81.71 | 80.13 | 64.74 | 47.97 | a | 48.97 | 64.37 | ||||||||||||
1995 | 48.10 | 57.61 | 56.77 | 60.47 | 70.45 | 73.70 | 82.00 | 81.65 | 79.53 | 64.45 | 56.93 | 50.81 | 65.21 | |||||||||||||
1996 | 48.65 | 52.97 | 59.32 | 63.70 | 66.23 | 75.80 | 88.23 | 86.77 | 75.20 | 64.90 | 55.03 | 48.83 | a | 65.47 | ||||||||||||
1997 | 49.84 | 53.32 | 59.55 | 62.13 | 76.29 | 74.83 | 82.06 | 85.26 | 76.97 | 62.29 | 55.83 | 46.61 | 65.42 | |||||||||||||
1998 | 51.19 | 54.14 | 57.00 | 62.07 | 62.58 | 74.00 | 83.97 | 85.16 | 81.10 | 65.13 | 54.24 | a | 45.71 | 64.69 | ||||||||||||
1999 | 49.03 | 51.50 | 54.45 | 60.97 | 66.42 | 74.73 | 81.65 | 81.52 | 81.63 | 70.74 | 58.23 | 46.81 | 64.81 | |||||||||||||
2000 | 47.42 | 53.21 | 55.55 | 65.33 | 68.23 | 78.27 | 80.13 | 82.97 | 77.23 | 67.70 | a | 50.07 | 48.55 | 64.55 | ||||||||||||
2001 | 49.35 | 50.68 | 57.71 | 60.03 | 73.55 | 72.43 | 80.87 | 83.19 | 78.90 | 66.16 | 56.37 | 47.97 | 64.77 | |||||||||||||
2002 | 48.55 | 54.25 | 55.32 | 63.67 | 67.10 | 76.70 | 86.26 | 84.52 | 80.03 | 64.97 | 55.83 | 50.06 | 65.60 | |||||||||||||
2003 | 52.71 | 53.39 | 58.58 | 58.33 | 68.00 | 79.47 | 88.13 | 85.32 | 81.53 | 70.13 | 50.77 | 49.00 | 66.28 | |||||||||||||
2004 | 49.52 | 51.59 | 63.16 | 66.90 | 69.57 | a | 75.47 | 85.97 | 84.87 | 74.30 | 65.77 | 53.13 | 48.55 | 65.73 | ||||||||||||
2005 | 48.97 | 54.00 | 61.87 | 61.90 | 69.32 | 71.97 | 85.32 | 87.77 | 76.97 | 66.58 | 50.77 | 46.77 | 65.18 | |||||||||||||
2006 | 49.77 | 53.71 | 53.77 | 63.40 | 72.16 | 77.23 | 86.90 | 84.39 | 80.17 | 67.13 | 54.43 | 49.19 | 66.02 | |||||||||||||
2007 | 45.45 | 51.82 | 61.10 | 63.33 | 71.97 | 77.73 | 84.10 | 82.81 | 76.57 | 62.58 | 50.10 | 47.39 | 64.58 | |||||||||||||
2008 | 43.60 | a | 51.45 | 54.06 | 58.93 | 69.71 | 74.79 | a | 86.29 | 85.42 | 80.73 | 65.52 | 55.80 | 45.35 | 64.31 | |||||||||||
2009 | 46.10 | 52.25 | 53.58 | 61.93 | 72.81 | 76.67 | 88.74 | 85.68 | 80.70 | 62.90 | 52.97 | 43.61 | 64.83 | |||||||||||||
2010 | 54.03 | 55.68 | 57.52 | 59.83 | 65.68 | 73.00 | 85.74 | 84.13 | 76.83 | 66.26 | 54.03 | 50.29 | 65.25 | |||||||||||||
2011 | 50.00 | 50.18 | 55.10 | 57.87 | 64.61 | 73.27 | 78.87 | 84.13 | 83.90 | 65.13 | 53.47 | 45.13 | 63.47 | |||||||||||||
2012 | 48.84 | 51.83 | 54.03 | 62.83 | 68.90 | 72.23 | 80.94 | 86.13 | 81.80 | 67.90 | 56.23 | 47.48 | 64.93 | |||||||||||||
2013 | 44.39 | 51.25 | 58.90 | 64.73 | 71.81 | 78.40 | 88.94 | 82.48 | 74.30 | 63.00 | 52.10 | 41.17 | a | 64.29 | ||||||||||||
2014 | 48.71 | 53.14 | 60.68 | 64.97 | 73.84 | 76.13 | 86.35 | 87.16 | 82.43 | 72.26 | 55.47 | 52.10 | 67.77 | |||||||||||||
2015 | 50.70 | a | 57.04 | 64.45 | b | 64.43 | 71.94 | 83.66 | a | 90.03 | a | 87.45 | 78.70 | 73.87 | 54.40 | 49.90 | 68.88 | |||||||||
2016 | 49.42 | 55.17 | 59.35 | 70.27 | 73.68 | 79.97 | 83.81 | 91.03 | a | 78.87 | 65.29 | 61.27 | 46.10 | 67.85 | ||||||||||||
2017 | 46.00 | 53.85 | b | 57.61 | 61.43 | 73.06 | 78.43 | 87.55 | 91.61 | 80.55 | a | 64.84 | 57.52 | a | 46.13 | a | 66.55 | |||||||||
2018 | 52.52 | 53.14 | 58.52 | 66.13 | 75.65 | 80.85 | c | 91.47 | a | 88.04 | d | 79.57 | 72.13 | a | 56.59 | a | 49.66 | b | 68.69 | |||||||
2019 | 49.97 | a | 45.81 | a | 57.52 | 64.55 | a | 73.06 | 81.25 | b | 83.93 | a | 86.26 | 76.47 | 64.19 | 57.40 | 51.68 | 66.01 | ||||||||
2020 | 53.48 | 54.79 | a | 58.87 | 67.90 | 71.07 | a | 76.80 | 85.83 | a | 89.72 | b | 81.76 | a | 71.10 | 55.63 | 49.29 | 68.02 | ||||||||
2021 | 50.87 | 50.82 | 58.10 | 69.37 | 73.03 | 84.60 | 91.13 | 88.58 | 81.83 | 64.00 | 56.86 | b | 48.42 | 68.13 | ||||||||||||
2022 | 50.84 | 52.27 | b | 60.47 | a | 58.20 | 65.74 | 75.57 | 87.19 | 89.38 | b | 82.46 | b | 72.33 | a | 50.17 | 47.84 | 66.04 | ||||||||
2023 | 49.48 | 48.50 | 50.81 | 59.07 | 74.67 | a | 80.07 | 89.07 | a | 89.68 | 77.72 | a | 65.16 | 54.47 | 52.10 | 65.90 | ||||||||||
2024 | 51.84 | 54.39 | a | 58.11 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.78 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.10 | 52.80 | 57.96 | 62.87 | 70.00 | 76.33 | 85.11 | 85.47 | 79.40 | 66.78 | 54.34 | 47.64 | 65.60 | |||||||||||||
S.D. | 2.58 | 2.84 | 3.12 | 3.23 | 3.61 | 3.51 | 3.61 | 2.95 | 2.47 | 3.11 | 2.93 | 2.64 | 1.51 | |||||||||||||
SKEW | -0.38 | -0.01 | -0.10 | 0.36 | -0.32 | 0.45 | -0.57 | 0.23 | -0.39 | 0.70 | -0.36 | -0.57 | 0.57 | |||||||||||||
MAX | 54.03 | 58.90 | 64.45 | 70.27 | 76.29 | 84.60 | 91.47 | 91.61 | 83.90 | 73.87 | 61.27 | 52.10 | 68.88 | |||||||||||||
MIN | 43.60 | 45.81 | 50.81 | 57.87 | 62.58 | 70.47 | 74.81 | 79.42 | 74.30 | 62.29 | 47.97 | 41.00 | 62.44 | |||||||||||||
YRS | 35 | 35 | 35 | 34 | 33 | 34 | 34 | 33 | 34 | 35 | 35 | 35 | 33 |