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 | 86.57 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.57 | k |
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 | 36.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.23 | k | |
1972 | ----- | z | 20.65 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.97 | a | 67.14 | b | 51.30 | a | 36.22 | c | 21.17 | h | 50.86 | g |
1973 | 24.61 | c | 29.07 | a | ----- | z | 53.37 | c | ----- | z | ----- | z | ----- | z | 81.94 | 68.70 | 62.52 | 40.70 | c | 25.24 | j | 51.56 | e | |||
1974 | ----- | z | 27.43 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.21 | b | ----- | z | ----- | z | ----- | z | 46.82 | j |
1975 | ----- | z | ----- | z | 35.31 | b | 48.77 | 72.84 | 78.97 | 86.94 | 79.94 | 66.10 | a | 60.79 | b | 44.46 | f | ----- | z | 66.21 | d | |||||
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 | 37.12 | g | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.62 | a | 74.26 | 74.55 | 73.27 | 46.74 | 47.50 | 21.74 | 58.67 | e | ||||||
2010 | 17.68 | 24.61 | 46.65 | 62.97 | 68.94 | 73.60 | 80.55 | 81.19 | 66.40 | 61.55 | 40.70 | 20.94 | 53.81 | |||||||||||||
2011 | 16.52 | 25.18 | 34.97 | 51.63 | 64.35 | 74.43 | 83.84 | 78.65 | 68.37 | 62.10 | 44.70 | 31.10 | 52.99 | |||||||||||||
2012 | 27.45 | 33.21 | 55.23 | 56.67 | 70.90 | 78.17 | a | 85.32 | 78.29 | 72.33 | 54.30 | a | 44.97 | 28.97 | 57.15 | |||||||||||
2013 | 22.84 | 23.75 | 31.74 | 44.47 | 64.10 | 74.10 | 79.94 | 80.45 | 74.67 | 55.65 | 38.00 | 18.19 | 50.66 | |||||||||||||
2014 | 14.40 | a | 14.43 | 29.32 | 49.23 | 64.81 | 76.93 | 76.52 | 77.55 | 69.13 | 55.06 | 31.40 | 28.58 | 48.95 | ||||||||||||
2015 | 23.03 | 16.07 | 41.65 | 57.66 | a | 66.52 | 74.93 | 79.32 | 75.45 | 74.53 | 59.45 | 47.93 | 34.42 | 54.25 | ||||||||||||
2016 | 20.39 | 28.31 | 45.35 | 53.47 | 68.00 | 77.20 | 80.16 | 78.97 | 71.90 | 59.68 | 50.70 | 25.16 | 54.94 | |||||||||||||
2017 | 24.65 | 35.18 | 37.97 | 55.90 | 63.42 | 76.70 | 79.68 | 73.97 | 73.53 | 58.06 | 38.00 | 23.48 | 53.38 | |||||||||||||
2018 | 22.50 | e | 22.25 | 36.19 | 41.87 | 74.87 | 76.73 | 79.52 | 78.13 | 70.13 | 49.90 | 31.23 | 28.39 | 50.98 | ||||||||||||
2019 | 18.84 | 18.29 | 32.77 | 51.40 | 61.03 | 74.93 | 79.77 | 75.03 | 70.03 | 50.71 | 32.37 | 27.48 | 49.39 | |||||||||||||
2020 | 24.71 | 27.14 | a | 40.42 | 50.41 | a | 63.65 | 77.80 | 81.39 | 78.03 | 67.20 | 47.61 | 45.00 | 30.32 | 52.81 | |||||||||||
2021 | 23.87 | 15.54 | 45.84 | 52.73 | 65.00 | 82.53 | 81.19 | 78.55 | 72.72 | a | 61.55 | 40.80 | 28.42 | 54.06 | ||||||||||||
2022 | 15.94 | 20.21 | 34.90 | 45.57 | b | 66.61 | 77.38 | a | 80.19 | 76.71 | 71.13 | 58.65 | 40.30 | 20.55 | 50.68 | |||||||||||
2023 | 24.42 | 26.68 | 34.23 | 50.60 | 69.81 | 79.70 | 79.68 | 78.26 | 72.78 | c | ----- | z | ----- | z | ----- | z | 57.35 | c | ||||||||
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.46 | 24.00 | 38.67 | 51.67 | 66.99 | 76.67 | 80.87 | 78.03 | 70.33 | 56.21 | 40.66 | 26.27 | 52.62 | |||||||||||||
S.D. | 3.91 | 5.98 | 6.77 | 5.27 | 3.86 | 2.54 | 3.27 | 2.22 | 2.91 | 5.29 | 5.95 | 4.68 | 2.36 | |||||||||||||
SKEW | -0.44 | 0.06 | 0.92 | 0.13 | 0.55 | 0.47 | 0.25 | -0.24 | -0.07 | -0.47 | -0.12 | -0.16 | 0.08 | |||||||||||||
MAX | 27.45 | 35.18 | 55.23 | 62.97 | 74.87 | 82.53 | 86.94 | 81.94 | 74.67 | 62.52 | 50.70 | 34.42 | 57.15 | |||||||||||||
MIN | 14.40 | 14.43 | 29.32 | 41.87 | 61.03 | 72.62 | 74.26 | 73.97 | 66.10 | 46.74 | 31.23 | 18.19 | 48.95 | |||||||||||||
YRS | 15 | 17 | 16 | 16 | 15 | 16 | 17 | 18 | 19 | 17 | 16 | 14 | 13 |