YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 36.50 | m | 46.40 | 52.57 | c | 52.19 | 47.10 | a | 37.90 | 29.67 | 19.55 | 40.77 | e | |||||
1963 | 5.94 | 23.48 | a | 23.03 | 28.38 | a | 41.70 | a | 45.30 | 55.96 | e | 54.10 | 48.33 | 41.35 | 27.27 | 13.35 | 34.02 | |||||||||
1964 | 10.77 | e | 13.59 | b | 17.53 | a | 28.80 | 38.94 | 44.65 | d | 55.52 | b | 51.61 | c | 45.33 | 36.93 | c | 20.63 | 12.87 | a | 31.43 | |||||
1965 | 14.73 | a | 12.96 | 18.17 | b | 31.03 | 37.26 | 44.57 | 53.97 | 51.35 | 42.47 | 36.81 | d | 31.03 | 19.32 | 32.81 | ||||||||||
1966 | 9.43 | a | 8.75 | 24.13 | 31.10 | a | 41.23 | a | 47.61 | b | 55.74 | 52.00 | 45.63 | 34.35 | 28.63 | 18.03 | a | 33.05 | ||||||||
1967 | 11.65 | 18.29 | 29.34 | b | 28.28 | a | 35.90 | 44.40 | 54.97 | 51.94 | 45.77 | 36.00 | 26.67 | 8.87 | a | 32.67 | ||||||||||
1968 | 9.87 | 20.59 | 24.32 | 26.43 | b | 36.39 | 45.73 | 53.14 | c | 47.13 | a | 41.36 | b | 35.45 | 23.33 | 11.45 | 31.27 | |||||||||
1969 | 18.39 | 15.64 | 17.03 | 29.10 | 38.93 | a | 44.10 | 55.48 | 55.07 | c | 47.33 | c | 30.81 | d | 24.07 | c | 21.00 | 33.08 | ||||||||
1970 | 17.00 | 20.78 | a | 20.07 | a | 21.20 | e | 36.87 | 44.65 | d | 51.52 | 52.06 | 40.83 | 28.84 | f | 22.20 | 13.32 | 30.96 | a | |||||||
1971 | 12.58 | ----- | z | 21.55 | 32.23 | 36.10 | 49.03 | 55.87 | 52.87 | 40.93 | 33.94 | 24.70 | 13.48 | 33.94 | a | |||||||||||
1972 | 15.45 | 22.83 | 28.06 | 33.27 | 39.45 | 45.10 | 53.74 | 50.94 | 44.50 | 38.55 | 19.83 | 12.13 | 33.65 | |||||||||||||
1973 | 7.29 | 16.57 | 21.77 | 26.23 | 41.61 | 48.07 | 53.48 | 52.48 | 42.77 | 37.60 | a | 26.97 | 18.03 | a | 32.74 | |||||||||||
1974 | 11.26 | 12.07 | 29.03 | 29.23 | 41.87 | 52.13 | 55.52 | 51.87 | 46.07 | 38.26 | 26.93 | 15.68 | 34.16 | |||||||||||||
1975 | 12.52 | 16.25 | 23.52 | 27.66 | a | 37.00 | 44.40 | 55.29 | 52.87 | 45.27 | 32.77 | 22.93 | 17.00 | 32.29 | ||||||||||||
1976 | 12.68 | 20.48 | 21.55 | 31.03 | 41.06 | 46.43 | 54.84 | 52.42 | 47.17 | 34.26 | 26.17 | 18.42 | 33.88 | |||||||||||||
1977 | 11.13 | 19.86 | 21.26 | 35.72 | a | 39.16 | 52.20 | 55.81 | 55.55 | 49.30 | 39.45 | 28.07 | 22.74 | 35.85 | ||||||||||||
1978 | 17.03 | 18.11 | 29.13 | a | 34.40 | 39.90 | 48.97 | 56.19 | 52.81 | 47.50 | 40.65 | 30.03 | 9.90 | 35.39 | ||||||||||||
1979 | 8.48 | 15.00 | 21.90 | 32.20 | 41.29 | 49.17 | 55.00 | 52.90 | a | 49.73 | 41.35 | 20.53 | 20.13 | 33.97 | ||||||||||||
1980 | 18.71 | 20.38 | 19.90 | 30.00 | 38.61 | 49.00 | 57.26 | 53.77 | 46.62 | a | 35.29 | 26.87 | 26.03 | 35.20 | ||||||||||||
1981 | 22.68 | 21.11 | 25.32 | 35.30 | 38.81 | 50.83 | 55.65 | 53.87 | 49.13 | 37.19 | 28.13 | 20.97 | 36.58 | |||||||||||||
1982 | 12.52 | 16.11 | 27.27 | a | 29.23 | 39.45 | 46.28 | a | 53.03 | 55.81 | 48.20 | 33.10 | 25.79 | b | 14.03 | a | 33.40 | |||||||||
1983 | 15.77 | 19.43 | 25.19 | 26.53 | 35.80 | a | 47.03 | 54.10 | 55.29 | 49.33 | 37.90 | 24.19 | c | 16.59 | b | 33.93 | ||||||||||
1984 | 11.26 | 15.03 | 23.65 | 27.97 | 42.74 | 47.93 | 54.10 | 54.16 | 49.03 | 32.68 | 25.10 | 21.10 | 33.73 | |||||||||||||
1985 | 14.61 | 14.78 | a | 26.73 | a | 35.25 | b | 41.33 | a | 49.20 | 55.29 | 54.03 | 43.80 | 38.71 | 25.93 | b | 18.83 | b | 34.87 | |||||||
1986 | 23.37 | a | 24.81 | a | 29.90 | 32.52 | a | 38.45 | 49.17 | 53.03 | 55.35 | 44.69 | a | 35.45 | 26.80 | 21.42 | 36.25 | |||||||||
1987 | 15.97 | 22.21 | 22.10 | 33.33 | 40.06 | 49.43 | 53.35 | 52.52 | 46.14 | b | 40.16 | 25.67 | 16.17 | a | 34.76 | |||||||||||
1988 | 12.57 | a | 17.00 | 23.35 | 32.70 | 38.10 | 51.53 | 54.57 | a | 53.68 | 44.87 | 40.55 | 24.37 | 16.00 | 34.11 | |||||||||||
1989 | 11.71 | 18.15 | a | 29.77 | 32.83 | 41.77 | 48.37 | 56.35 | 51.97 | 47.47 | 36.03 | 26.20 | 16.68 | 34.78 | ||||||||||||
1990 | 15.10 | 20.07 | 28.68 | 35.40 | 38.77 | 51.23 | 55.03 | 52.52 | 49.70 | 36.74 | 25.97 | 9.74 | 34.91 | |||||||||||||
1991 | 10.55 | 19.89 | 24.74 | 28.97 | 38.26 | 46.50 | 52.81 | 53.55 | 46.33 | 37.32 | 22.93 | 15.52 | 33.11 | |||||||||||||
1992 | 10.87 | 21.41 | 29.10 | 37.10 | 42.42 | 46.67 | 51.71 | 52.32 | 45.37 | 39.42 | 20.10 | 14.35 | 34.24 | |||||||||||||
1993 | 20.27 | a | 20.54 | 26.06 | 31.23 | 40.52 | 46.00 | 52.10 | 52.39 | 44.90 | 35.32 | 22.70 | 16.84 | 34.07 | ||||||||||||
1994 | 17.35 | 17.36 | 28.97 | 33.70 | 40.48 | 52.20 | 54.58 | 56.84 | 47.63 | 35.61 | 21.73 | 23.19 | 35.80 | |||||||||||||
1995 | 17.97 | 28.32 | 29.61 | 30.67 | 36.26 | 44.28 | a | 52.20 | a | 55.77 | 47.23 | 34.97 | 29.57 | 22.06 | 35.74 | |||||||||||
1996 | 18.97 | 25.28 | 27.00 | 31.70 | 43.84 | 51.50 | 56.19 | 54.90 | 45.59 | a | 35.39 | 27.37 | 19.13 | a | 36.40 | |||||||||||
1997 | 18.06 | 18.25 | 25.84 | 30.43 | 41.84 | 47.43 | 53.41 | b | 53.06 | 49.70 | 34.77 | 24.73 | 17.26 | 34.57 | ||||||||||||
1998 | 19.42 | 18.57 | 23.84 | 29.30 | 39.65 | 45.40 | 56.19 | 55.29 | 50.47 | 37.29 | 27.46 | b | 19.87 | a | 35.23 | |||||||||||
1999 | 23.29 | 24.04 | 29.81 | 28.52 | a | 37.55 | 46.47 | 56.13 | 54.55 | 45.40 | 38.68 | 30.73 | 17.23 | 36.03 | ||||||||||||
2000 | 20.52 | 25.41 | 27.13 | a | 35.43 | 42.74 | 50.40 | 54.84 | 56.42 | 48.00 | a | 37.67 | a | 21.10 | a | 15.35 | 36.25 | |||||||||
2001 | 13.06 | 21.00 | 27.17 | a | 33.43 | 41.97 | b | 50.17 | 55.55 | 53.16 | 48.00 | 37.87 | 27.27 | 11.20 | a | 34.99 | ||||||||||
2002 | 7.97 | 8.92 | c | 18.87 | 37.04 | c | 41.84 | 52.53 | 57.94 | 53.74 | 48.30 | 35.35 | 25.33 | 15.73 | a | 33.63 | ||||||||||
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 | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | 28.39 | 26.42 | 25.47 | 31.23 | a | 47.21 | a | 48.16 | 45.90 | 43.68 | b | 28.65 | 26.00 | 17.48 | d | 33.51 | a | |||||||
2018 | 15.06 | 16.18 | 17.42 | 27.89 | b | 36.26 | 43.90 | 46.55 | 46.26 | 39.30 | 27.97 | 12.83 | 10.48 | 28.34 | ||||||||||||
2019 | 6.52 | 8.75 | 21.07 | b | 26.10 | 26.23 | 39.62 | a | 45.79 | b | 47.10 | 40.14 | a | 21.26 | 22.03 | 19.32 | 26.99 | |||||||||
2020 | 16.94 | 20.43 | a | 29.03 | a | 33.86 | a | 41.39 | 44.47 | 48.40 | a | 47.55 | 39.03 | 33.61 | 27.97 | 16.23 | 33.24 | |||||||||
2021 | 16.68 | 19.18 | 26.16 | 32.14 | a | 40.16 | 51.53 | 57.57 | a | 52.94 | 48.17 | 34.87 | 29.10 | 22.23 | 35.89 | |||||||||||
2022 | 18.68 | 17.32 | 27.06 | 31.70 | 40.10 | 50.73 | 56.81 | 55.48 | 51.00 | 35.26 | 20.53 | 17.84 | 35.21 | |||||||||||||
2023 | 15.68 | 13.68 | 20.77 | 30.17 | 42.03 | 45.77 | 55.87 | 54.84 | 46.67 | 37.58 | 26.90 | 22.16 | 34.34 | |||||||||||||
2024 | 20.71 | 24.03 | 27.74 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.16 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.66 | 18.75 | 24.73 | 30.90 | 39.22 | 47.62 | 54.15 | 52.86 | 46.07 | 35.94 | 25.23 | 17.01 | 34.02 | |||||||||||||
S.D. | 4.46 | 4.59 | 3.79 | 3.35 | 3.13 | 2.88 | 2.61 | 2.53 | 2.96 | 3.63 | 3.46 | 3.95 | 1.91 | |||||||||||||
SKEW | 0.03 | -0.19 | -0.39 | -0.31 | -1.81 | -0.12 | -1.51 | -1.18 | -0.68 | -1.61 | -0.97 | -0.12 | -1.64 | |||||||||||||
MAX | 23.37 | 28.39 | 29.90 | 37.10 | 43.84 | 52.53 | 57.94 | 56.84 | 51.00 | 41.35 | 31.03 | 26.03 | 36.58 | |||||||||||||
MIN | 5.94 | 8.75 | 17.03 | 21.20 | 26.23 | 39.62 | 45.79 | 45.90 | 39.03 | 21.26 | 12.83 | 8.87 | 26.99 | |||||||||||||
YRS | 47 | 47 | 48 | 47 | 47 | 48 | 48 | 48 | 48 | 47 | 48 | 48 | 44 |