YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.25 | c | ----- | z | ----- | z | ----- | z | ----- | z | 56.25 | k |
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 | 13.56 | m | 22.81 | i | 40.90 | k | ----- | z | 54.24 | j | 55.38 | j | 44.68 | k | 28.64 | i | 25.60 | o | 18.83 | m | ----- | z |
1971 | 16.27 | p | 15.53 | i | 18.71 | j | 30.75 | n | 38.45 | k | ----- | 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 | 26.85 | n | 16.75 | l | 3.08 | s | ----- | 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 | 11.39 | q | ----- | 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 | 19.00 | o | ----- | 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 | 23.89 | q | ----- | 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 | 42.16 | e | 37.19 | g | ----- | z | 10.05 | l | 42.16 | k |
2004 | 8.12 | f | 7.67 | h | 21.28 | f | 26.35 | f | 34.65 | e | 43.85 | j | 50.06 | e | 47.10 | f | 43.27 | h | 31.38 | g | 20.77 | d | 15.85 | k | 35.16 | i |
2005 | 17.12 | a | 12.83 | g | 16.23 | 25.41 | a | 36.70 | a | 46.28 | 56.17 | a | 49.92 | 44.57 | a | 35.97 | b | 22.30 | 12.47 | a | 33.01 | a | ||||
2006 | 15.13 | d | 13.20 | 17.75 | a | 30.43 | a | 40.53 | a | 52.66 | a | 56.82 | a | 50.42 | a | 38.10 | 28.97 | a | 19.45 | b | 16.50 | j | 33.04 | a | ||
2007 | 8.91 | b | 15.11 | a | 24.00 | d | 30.55 | 39.69 | 51.77 | 56.18 | a | 50.44 | 42.48 | 30.48 | a | 20.83 | g | 5.15 | a | 32.25 | a | |||||
2008 | 2.03 | 6.82 | a | 9.03 | 18.00 | b | 36.77 | a | 50.18 | 57.84 | 54.50 | b | 44.47 | a | 34.50 | 23.85 | 12.40 | 29.20 | ||||||||
2009 | 13.32 | 15.86 | 21.39 | 27.06 | d | 39.21 | 44.14 | a | 51.55 | 49.94 | 44.86 | b | 31.82 | a | 27.05 | 10.52 | a | 31.39 | ||||||||
2010 | 17.08 | 13.26 | c | 23.71 | e | 29.29 | a | 37.34 | 52.23 | ----- | z | 51.67 | a | 48.02 | 36.92 | a | 21.66 | a | 18.38 | a | 31.78 | a | ||||
2011 | 6.69 | 8.91 | a | 19.10 | 21.85 | 30.37 | a | 43.45 | 50.86 | b | 51.66 | c | 44.42 | f | 34.04 | e | 21.85 | 13.53 | a | 27.48 | a | |||||
2012 | 14.39 | 12.85 | b | 26.14 | f | 33.62 | e | 42.29 | b | ----- | z | 56.25 | m | 55.69 | o | 45.48 | d | 35.19 | 27.95 | 16.28 | b | 28.51 | d | |||
2013 | 14.34 | 12.50 | 23.94 | 26.90 | 38.92 | 54.03 | 56.90 | 52.94 | 47.33 | 30.68 | 26.08 | 14.81 | 33.28 | |||||||||||||
2014 | 16.47 | 20.48 | 24.03 | 29.60 | 39.53 | 49.60 | 56.85 | 51.42 | 48.60 | 37.58 | 24.22 | a | 19.90 | 34.86 | ||||||||||||
2015 | 22.02 | 23.57 | 27.92 | 32.00 | 36.74 | 52.47 | 52.89 | 54.11 | 48.97 | 40.19 | 23.18 | 16.42 | 35.87 | |||||||||||||
2016 | 16.17 | a | 20.88 | 25.48 | a | 31.80 | 37.71 | 52.93 | 56.13 | a | 51.00 | 47.85 | c | 41.32 | 28.98 | ----- | z | 37.30 | a | |||||||
2017 | 17.85 | 23.70 | a | 30.84 | 33.48 | c | 37.26 | 53.65 | 56.55 | 53.48 | ----- | z | 36.50 | 34.10 | 23.08 | 36.41 | a | |||||||||
2018 | 27.19 | j | 21.41 | 23.52 | 32.28 | a | 43.20 | a | 53.36 | a | 58.50 | 55.06 | 49.93 | 36.73 | 20.18 | 14.29 | 37.13 | a | ||||||||
2019 | 16.61 | 13.43 | 22.11 | 32.53 | 34.19 | 46.03 | 55.35 | 54.74 | 48.68 | 29.21 | 24.65 | 17.95 | 32.96 | |||||||||||||
2020 | 16.98 | 15.86 | a | 25.77 | 31.06 | d | 44.14 | j | 51.63 | 56.03 | 58.08 | 47.31 | c | 36.85 | a | 26.62 | 15.81 | 34.73 | a | |||||||
2021 | 17.46 | d | 15.95 | 22.18 | 30.47 | 39.65 | a | 53.02 | 57.73 | 53.81 | 49.47 | a | 33.47 | a | 29.73 | 18.95 | 35.16 | |||||||||
2022 | 15.79 | 13.91 | 21.73 | 29.98 | a | 39.58 | 51.15 | 56.27 | 54.02 | 49.15 | 33.02 | a | 19.98 | 18.44 | 33.58 | |||||||||||
2023 | 14.40 | 19.73 | 21.22 | a | 28.38 | a | 41.85 | 47.17 | 57.63 | 55.53 | 47.28 | 36.02 | 25.64 | a | 20.69 | 34.63 | ||||||||||
2024 | 16.39 | 18.86 | 23.68 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.64 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.69 | 16.12 | 22.30 | 29.19 | 38.22 | 50.32 | 55.57 | 53.10 | 46.37 | 34.71 | 24.64 | 15.83 | 33.44 | |||||||||||||
S.D. | 4.48 | 4.69 | 4.64 | 3.99 | 3.06 | 3.40 | 2.50 | 2.33 | 3.12 | 3.44 | 3.85 | 4.29 | 2.08 | |||||||||||||
SKEW | -1.42 | -0.05 | -1.02 | -1.43 | -0.68 | -0.84 | -1.14 | 0.28 | -1.13 | -0.01 | 0.67 | -0.67 | -0.89 | |||||||||||||
MAX | 22.02 | 23.70 | 30.84 | 33.62 | 43.20 | 54.03 | 58.50 | 58.08 | 49.93 | 41.32 | 34.10 | 23.08 | 35.87 | |||||||||||||
MIN | 2.03 | 6.82 | 9.03 | 18.00 | 30.37 | 43.45 | 50.06 | 49.92 | 38.10 | 28.97 | 19.45 | 5.15 | 29.20 | |||||||||||||
YRS | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 19 | 18 | 19 | 19 | 17 | 9 |