YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 71.29 | c | 58.12 | d | 58.36 | f | 64.70 | j |
1981 | 54.32 | f | 55.30 | e | 55.64 | c | 72.55 | j | 77.00 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.47 | j |
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 | 69.17 | a | 61.86 | a | 43.35 | 58.13 | i | |
1990 | 48.26 | 47.18 | 52.40 | a | 66.57 | 70.53 | a | 89.70 | 84.06 | 83.29 | 81.17 | 69.90 | 61.45 | a | 42.37 | a | 66.41 | |||||||||
1991 | 41.61 | 57.11 | 57.26 | 63.13 | 76.03 | a | 84.10 | a | 84.63 | a | 83.81 | 77.47 | 71.10 | 48.77 | 47.35 | 66.03 | ||||||||||
1992 | 48.23 | 53.41 | 60.63 | a | 68.69 | a | 72.33 | d | 77.72 | a | 85.59 | d | 85.00 | i | 82.77 | 74.58 | 44.54 | b | 43.94 | 64.77 | a | |||||
1993 | 44.19 | 46.18 | 55.19 | 63.73 | 72.42 | 82.50 | 88.84 | 84.13 | 76.67 | 66.97 | 53.69 | a | 51.65 | 65.51 | ||||||||||||
1994 | 52.23 | 53.25 | 61.23 | 62.83 | a | 73.97 | a | 89.83 | 91.97 | 89.45 | 81.23 | 70.16 | 54.83 | 54.39 | 69.61 | |||||||||||
1995 | 48.65 | 57.71 | 57.03 | 58.80 | 66.23 | a | 78.43 | 88.90 | a | 93.19 | 80.40 | 73.13 | 63.17 | 51.29 | 68.08 | |||||||||||
1996 | 51.19 | 56.59 | 55.52 | 65.83 | a | 77.87 | a | 83.13 | 85.83 | a | 83.55 | 76.27 | 69.48 | 57.47 | 50.32 | 67.75 | ||||||||||
1997 | 45.97 | 46.74 | a | 62.71 | 56.60 | 73.72 | b | 82.67 | c | 90.61 | 84.23 | 80.33 | 65.23 | 49.07 | 38.30 | a | 64.68 | |||||||||
1998 | 47.39 | 48.18 | 51.65 | 59.90 | a | 78.72 | f | 83.13 | 88.07 | b | 84.90 | a | 85.90 | 70.12 | f | 58.79 | b | 47.80 | a | 65.57 | b | |||||
1999 | 49.90 | 57.79 | 56.67 | a | 59.67 | 68.83 | a | 81.07 | a | 89.55 | 86.84 | 75.83 | 69.55 | 66.17 | 47.68 | 67.46 | ||||||||||
2000 | 50.90 | 58.83 | 54.26 | 66.73 | 77.60 | a | 83.47 | 90.39 | 91.81 | 86.10 | 69.68 | 50.58 | d | 45.09 | h | 70.94 | a | |||||||||
2001 | 45.94 | 50.36 | 54.68 | 72.39 | b | 75.36 | c | 87.33 | 94.06 | 90.81 | 85.10 | 74.00 | 63.10 | a | 52.23 | 70.45 | ||||||||||
2002 | 47.71 | 50.75 | 57.55 | 72.27 | ----- | z | 91.20 | 91.74 | 89.83 | a | 80.69 | a | 64.35 | 54.16 | e | 48.90 | 68.11 | a | ||||||||
2003 | 51.23 | a | 45.82 | 58.39 | 67.80 | 78.06 | 79.37 | 96.35 | 90.19 | 79.90 | 76.55 | 57.43 | 53.39 | 69.54 | ||||||||||||
2004 | 51.32 | 48.14 | 63.94 | 63.53 | 79.77 | 84.10 | 87.35 | 84.68 | 82.77 | 70.94 | 50.50 | 51.97 | 68.25 | |||||||||||||
2005 | 51.26 | 50.50 | 55.77 | 61.80 | 73.74 | 85.37 | 92.68 | 88.13 | 84.33 | 71.06 | 62.20 | 50.26 | 68.93 | |||||||||||||
2006 | 56.32 | 53.29 | 58.71 | 72.77 | 80.45 | 89.93 | 91.43 | a | 85.74 | ----- | z | 67.55 | 61.87 | 44.26 | 69.30 | a | ||||||||||
2007 | 39.16 | 45.82 | 63.00 | 60.90 | 74.35 | 82.90 | 88.16 | 92.61 | 84.47 | 74.39 | 63.70 | 44.61 | 67.84 | |||||||||||||
2008 | 45.77 | 50.62 | 57.90 | 65.13 | 75.45 | 88.40 | 91.90 | 85.45 | 78.07 | 69.58 | 62.47 | 48.06 | 68.23 | |||||||||||||
2009 | 52.90 | 58.68 | 61.32 | 63.43 | 73.97 | 83.07 | 90.13 | 86.84 | 78.47 | 61.10 | 60.73 | 41.32 | 67.66 | |||||||||||||
2010 | 51.13 | 43.18 | 54.03 | 66.60 | 72.48 | 87.63 | 88.45 | 88.16 | 87.77 | 74.81 | 61.07 | 54.26 | 69.13 | |||||||||||||
2011 | 49.26 | 47.32 | 62.61 | 70.47 | 75.45 | 88.67 | 94.84 | 93.58 | 83.07 | 72.48 | 58.60 | 41.94 | 69.86 | |||||||||||||
2012 | 53.35 | 49.14 | 66.77 | 70.67 | 78.48 | 91.87 | 94.58 | 92.10 | 83.67 | 70.19 | 66.53 | 52.06 | 72.45 | |||||||||||||
2013 | 50.29 | 49.07 | 57.94 | 62.00 | 77.58 | 92.59 | a | 90.45 | 88.12 | e | 82.63 | 69.84 | 56.43 | 48.90 | 68.82 | |||||||||||
2014 | 50.77 | 49.29 | 61.26 | 66.37 | 76.71 | 86.60 | 90.45 | 87.61 | 81.53 | 72.68 | 56.57 | 47.61 | 68.95 | |||||||||||||
2015 | 47.81 | 50.57 | 60.77 | 67.47 | 68.29 | 85.63 | 89.52 | 91.16 | 87.90 | 73.29 | 55.63 | 47.81 | 68.82 | |||||||||||||
2016 | 49.71 | 55.97 | 62.35 | 65.80 | 71.97 | 88.47 | 95.77 | 85.32 | 83.90 | 79.23 | 64.80 | 49.61 | 71.07 | |||||||||||||
2017 | 45.06 | 61.21 | 67.10 | 64.47 | 70.26 | 87.30 | 90.03 | 82.03 | 79.63 | 71.58 | 64.73 | 54.06 | 69.79 | |||||||||||||
2018 | 53.39 | 53.29 | 63.71 | 65.20 | 82.55 | 92.13 | 92.16 | 86.58 | 84.47 | 65.16 | 52.90 | 50.61 | 70.18 | |||||||||||||
2019 | 46.97 | 51.07 | 54.84 | 67.73 | 69.65 | 83.50 | 92.16 | 94.71 | 89.30 | 63.74 | 56.87 | 52.23 | 68.56 | |||||||||||||
2020 | 52.13 | 45.21 | 63.65 | 66.83 | 79.87 | 90.57 | 92.35 | 94.55 | 80.43 | 71.23 | a | 64.50 | 47.10 | 70.70 | ||||||||||||
2021 | 48.06 | 44.44 | a | 57.29 | 65.80 | 73.10 | 87.90 | 90.06 | 89.42 | 88.77 | 73.87 | 65.43 | 60.68 | 70.40 | ||||||||||||
2022 | 50.34 | b | 47.36 | 58.10 | 69.70 | 78.13 | 84.70 | 93.71 | 88.97 | 87.23 | 73.10 | 55.43 | 50.81 | 69.80 | ||||||||||||
2023 | 45.74 | 49.36 | 55.23 | 67.73 | 75.74 | 79.97 | 91.90 | 91.23 | 86.17 | 73.35 | 62.57 | 53.35 | 69.36 | |||||||||||||
2024 | 42.26 | 55.83 | 59.48 | 68.80 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.52 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.75 | 51.24 | 58.79 | 65.57 | 74.72 | 85.73 | 90.55 | 88.27 | 82.56 | 70.69 | 58.52 | 48.95 | 68.77 | |||||||||||||
S.D. | 3.63 | 4.70 | 3.90 | 3.94 | 3.85 | 4.06 | 3.00 | 3.56 | 3.70 | 3.77 | 5.52 | 4.60 | 1.71 | |||||||||||||
SKEW | -0.55 | 0.33 | 0.28 | -0.15 | -0.16 | -0.11 | -0.23 | 0.13 | -0.02 | -0.42 | -0.58 | -0.12 | -0.42 | |||||||||||||
MAX | 56.32 | 61.21 | 67.10 | 72.77 | 82.55 | 92.59 | 96.35 | 94.71 | 89.30 | 79.23 | 66.53 | 60.68 | 72.45 | |||||||||||||
MIN | 39.16 | 43.18 | 51.65 | 56.60 | 66.23 | 77.72 | 84.06 | 82.03 | 75.83 | 61.10 | 44.54 | 38.30 | 64.68 | |||||||||||||
YRS | 35 | 36 | 36 | 34 | 32 | 34 | 34 | 33 | 33 | 35 | 36 | 34 | 29 |