YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.87 | 45.80 | 38.16 | 23.68 | b | 7.00 | 33.70 | g | ||||
1964 | 7.29 | 6.90 | 15.03 | a | 31.50 | 39.10 | 47.04 | c | 54.89 | c | 51.47 | a | 42.19 | c | 31.48 | d | 15.32 | b | 9.87 | 29.34 | ||||||
1965 | 9.16 | 12.07 | 18.90 | 30.83 | a | 37.73 | a | 44.87 | 53.35 | 50.58 | 40.60 | j | 32.94 | 26.90 | 13.48 | 30.07 | a | |||||||||
1966 | 8.03 | 9.25 | 21.55 | 28.70 | 39.97 | 46.38 | a | 54.81 | 51.48 | 44.30 | 30.10 | 23.90 | 3.13 | 30.13 | ||||||||||||
1967 | 7.42 | 11.71 | 26.13 | 28.86 | b | 37.35 | 44.20 | 55.52 | 53.10 | 43.59 | a | 30.83 | a | 23.70 | 4.13 | a | 30.55 | |||||||||
1968 | 0.90 | 15.90 | 24.10 | a | 27.83 | 38.35 | 47.27 | 54.23 | 48.03 | 40.53 | 32.65 | 20.87 | 8.71 | 29.95 | ||||||||||||
1969 | 15.13 | 13.71 | 15.13 | 32.20 | 43.13 | 45.63 | 54.16 | 54.45 | 44.50 | 28.03 | 18.00 | 13.16 | 31.44 | |||||||||||||
1970 | 10.74 | 18.54 | 22.35 | 24.93 | 39.10 | a | 45.53 | 53.61 | 54.97 | 38.60 | 27.42 | 22.63 | 11.06 | 30.79 | ||||||||||||
1971 | 10.84 | 17.18 | 21.16 | 29.37 | 38.00 | 47.03 | 53.87 | 55.35 | 39.23 | 30.23 | a | 17.13 | 10.13 | 30.79 | ||||||||||||
1972 | 13.42 | 16.72 | 25.65 | 32.27 | 39.10 | 49.27 | 52.94 | 52.29 | 42.87 | 37.39 | 21.70 | 3.23 | 32.24 | |||||||||||||
1973 | -3.61 | 3.07 | 21.13 | 28.60 | 39.13 | 46.63 | 52.68 | 51.74 | 40.77 | 32.39 | 19.70 | 10.27 | a | 28.54 | ||||||||||||
1974 | -0.61 | 7.18 | 26.13 | a | 27.57 | 39.55 | 49.40 | 53.68 | 48.61 | 41.80 | 35.58 | 23.40 | 9.35 | 30.14 | ||||||||||||
1975 | 4.41 | d | 12.71 | 22.77 | 26.97 | 35.97 | 43.83 | 54.97 | 48.23 | a | 41.77 | 29.52 | 18.20 | 11.65 | 29.25 | |||||||||||
1976 | 4.13 | 14.83 | 17.71 | 29.83 | 40.71 | 42.90 | 53.77 | 46.77 | 41.80 | 25.42 | 18.19 | c | 4.58 | 28.39 | ||||||||||||
1977 | 3.48 | 12.04 | 15.81 | 30.33 | 35.26 | 48.23 | 51.48 | 47.14 | b | 43.00 | 30.97 | 21.17 | 19.32 | 29.85 | ||||||||||||
1978 | 11.90 | 14.57 | 29.03 | 31.57 | 36.70 | a | 46.97 | 51.48 | 49.19 | 41.60 | 32.79 | b | 15.20 | -1.87 | 29.93 | |||||||||||
1979 | -3.90 | 6.82 | 22.32 | 30.47 | 39.52 | 44.48 | a | 53.06 | 51.10 | 41.63 | 32.61 | 14.63 | 9.39 | 28.51 | ||||||||||||
1980 | 13.90 | 11.28 | 22.94 | 29.90 | 38.06 | 45.97 | 53.32 | 48.61 | 40.17 | f | 28.03 | a | 17.17 | 14.03 | 29.38 | a | ||||||||||
1981 | 9.90 | 16.04 | 26.81 | 33.34 | a | 39.16 | 50.57 | b | 53.97 | 51.48 | 46.60 | 33.27 | e | 24.17 | 16.17 | a | 33.46 | |||||||||
1982 | 9.32 | 13.21 | 24.35 | 28.13 | 38.06 | ----- | z | 52.84 | 54.29 | 44.83 | 30.03 | a | 19.00 | 12.87 | 29.72 | a | ||||||||||
1983 | 12.19 | 17.25 | 31.57 | c | 32.14 | b | 35.55 | 46.77 | 52.32 | c | 54.48 | 40.07 | 31.39 | 19.50 | 4.77 | a | 31.50 | |||||||||
1984 | -5.32 | -0.28 | 18.19 | 27.27 | 37.61 | 44.43 | 54.06 | 51.58 | 40.53 | 24.87 | 17.47 | 7.65 | 26.51 | |||||||||||||
1985 | 1.77 | 1.64 | 20.77 | a | 32.67 | 39.55 | 46.88 | m | 55.38 | j | 50.35 | 38.80 | 30.41 | d | 19.32 | h | ----- | z | 27.00 | d | ||||||
1986 | ----- | z | 23.33 | m | 25.52 | b | ----- | z | 37.32 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.52 | k |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.50 | t | 3.10 | 3.10 | k | |
2014 | 10.26 | 19.46 | 23.97 | 31.00 | 38.26 | 45.93 | 56.81 | 54.13 | p | 44.15 | q | 34.10 | 21.27 | 17.13 | 29.82 | b | ||||||||||
2015 | 14.48 | 22.96 | 26.48 | 30.53 | 38.94 | 50.97 | 52.55 | 52.48 | 43.67 | i | 39.13 | 20.00 | 8.42 | 32.45 | a | |||||||||||
2016 | 6.10 | 15.59 | 25.90 | 32.07 | 38.23 | 51.40 | 53.52 | 51.52 | 43.47 | 36.19 | 25.73 | 11.52 | 32.60 | |||||||||||||
2017 | 8.16 | 22.52 | a | 29.00 | a | 30.37 | 38.10 | 49.93 | a | 57.20 | a | 53.10 | 44.27 | 28.61 | 25.23 | 12.94 | 33.28 | |||||||||
2018 | 12.48 | 16.86 | 23.97 | 30.80 | 42.45 | 50.00 | 58.19 | 54.06 | 45.07 | 40.91 | t | 0.06 | n | 7.39 | 34.13 | b | ||||||||||
2019 | 6.19 | 7.11 | 24.06 | 32.97 | 36.61 | 44.57 | 54.23 | 54.45 | 44.53 | 23.71 | 20.73 | 14.83 | a | 30.33 | ||||||||||||
2020 | -31.00 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.84 | 56.84 | 47.50 | 33.58 | 16.63 | 6.23 | 36.44 | f | ||||||
2023 | 8.35 | 1.68 | 16.32 | 26.73 | 41.13 | 45.37 | 55.26 | 54.42 | 42.70 | 32.77 | 20.73 | 12.29 | 29.81 | |||||||||||||
2024 | 14.35 | 19.14 | 24.94 | 32.93 | 30.17 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.84 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 7.36 | 12.59 | 22.89 | 30.09 | 38.63 | 46.87 | 54.16 | 51.87 | 42.68 | 31.49 | 20.41 | 9.55 | 30.33 | |||||||||||||
S.D. | 5.69 | 6.12 | 4.19 | 2.15 | 1.81 | 2.36 | 1.69 | 2.63 | 2.32 | 3.72 | 3.32 | 4.74 | 1.67 | |||||||||||||
SKEW | -0.71 | -0.45 | -0.25 | -0.45 | 0.42 | 0.40 | 0.81 | -0.26 | 0.10 | -0.01 | 0.09 | -0.19 | 0.00 | |||||||||||||
MAX | 15.13 | 22.96 | 31.57 | 33.34 | 43.13 | 51.40 | 58.19 | 56.84 | 47.50 | 39.13 | 26.90 | 19.32 | 33.46 | |||||||||||||
MIN | -5.32 | -0.28 | 15.03 | 24.93 | 35.26 | 42.90 | 51.48 | 46.77 | 38.60 | 23.71 | 14.63 | -1.87 | 26.51 | |||||||||||||
YRS | 30 | 30 | 31 | 30 | 29 | 27 | 29 | 30 | 27 | 30 | 29 | 31 | 22 |