YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | 29.00 | c | 25.00 | 32.23 | 38.74 | 46.77 | 48.52 | 50.55 | 46.30 | 39.10 | 31.79 | b | 29.43 | a | 37.95 | a | ||||||||
1968 | 21.63 | a | 28.00 | a | 32.03 | 30.83 | 38.61 | 43.57 | 48.79 | b | 48.03 | 43.40 | 35.10 | 33.38 | a | 24.43 | a | 35.65 | ||||||||
1969 | 14.23 | 24.64 | 31.50 | a | 33.93 | 38.84 | 45.47 | 47.87 | 45.68 | 44.45 | a | 39.29 | 31.86 | a | 34.17 | b | 35.99 | |||||||||
1970 | 23.47 | a | 32.74 | a | 33.32 | 33.17 | 38.23 | 42.79 | a | 46.90 | 46.61 | 42.50 | 37.97 | 29.27 | 24.32 | 35.94 | ||||||||||
1971 | 16.55 | 26.93 | 26.44 | m | 31.32 | h | 34.10 | b | 43.80 | o | 47.71 | c | 48.58 | 42.10 | a | 34.19 | 30.93 | 21.84 | 33.66 | c | ||||||
1972 | 16.68 | 20.21 | a | 23.86 | c | 29.13 | 35.87 | 41.40 | 46.97 | 49.93 | a | 41.34 | a | 31.39 | m | 33.30 | 25.50 | a | 33.11 | a | ||||||
1973 | 22.71 | 24.57 | 30.97 | 34.47 | 37.27 | e | 41.38 | d | 46.29 | 46.35 | 42.50 | 36.76 | f | ----- | z | ----- | z | 36.28 | c | |||||||
1974 | ----- | z | ----- | z | ----- | z | 36.13 | 39.58 | 45.20 | 50.21 | g | 50.00 | 47.77 | 40.65 | 35.03 | 34.32 | i | 42.05 | e | |||||||
1975 | 31.00 | r | 22.00 | 27.77 | 32.72 | a | 39.08 | e | 45.42 | f | 50.48 | 49.59 | i | 48.17 | f | 39.10 | 29.89 | c | ----- | z | 34.43 | e | ||||
1976 | ----- | z | 22.55 | r | 29.32 | 33.83 | a | 39.70 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.28 | i | |
1977 | ----- | z | 38.63 | i | 33.83 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.60 | 38.48 | 27.90 | 22.10 | 33.77 | h | ||||
1978 | 26.74 | 30.04 | 30.42 | 33.80 | 39.35 | 45.50 | 48.03 | 49.16 | 44.20 | 40.74 | 29.43 | 27.45 | 37.07 | |||||||||||||
1979 | 25.13 | 15.43 | 31.39 | 32.70 | 38.65 | 44.47 | 49.61 | 50.10 | 46.13 | 41.68 | 33.40 | 24.03 | 36.06 | |||||||||||||
1980 | 19.90 | 30.45 | 30.90 | 34.40 | 38.68 | 43.80 | 48.90 | 45.42 | 42.17 | 39.81 | 34.07 | 20.52 | 35.75 | |||||||||||||
1981 | 33.13 | 30.00 | 31.71 | 31.27 | 41.39 | 42.63 | 50.29 | 50.71 | 44.97 | 38.26 | 33.50 | 27.23 | 37.92 | |||||||||||||
1982 | 18.61 | 22.61 | 28.77 | 30.37 | 35.81 | 44.27 | 47.87 | 48.26 | 45.37 | 37.16 | 28.87 | 30.81 | 34.90 | |||||||||||||
1983 | 28.33 | a | 28.79 | 30.00 | 34.07 | 40.19 | 45.87 | 48.52 | 48.35 | 40.77 | 36.77 | 30.93 | 22.58 | 36.26 | ||||||||||||
1984 | 29.55 | 30.28 | 33.68 | 32.97 | 37.80 | a | 43.53 | 47.10 | 46.90 | 41.77 | 36.13 | 28.67 | 24.29 | 36.05 | ||||||||||||
1985 | 34.07 | a | 26.00 | 29.29 | 31.07 | 36.43 | a | 40.57 | ----- | z | 48.06 | 43.13 | 35.42 | 18.00 | b | 29.87 | 33.81 | a | ||||||||
1986 | 31.84 | 25.89 | 31.33 | a | 29.50 | 36.60 | a | 42.31 | a | 49.23 | a | 48.76 | b | 42.21 | a | 42.65 | 28.83 | 32.13 | 36.77 | |||||||
1987 | 30.45 | 31.07 | 25.27 | a | ----- | z | ----- | z | ----- | z | ----- | z | 48.20 | f | 45.60 | 39.17 | a | 35.43 | 29.81 | 33.83 | e | |||||
1988 | ----- | z | 29.45 | 31.83 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.64 | j | |
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 | 45.21 | b | 41.81 | 38.75 | b | 31.00 | b | 39.19 | h | |
2003 | 31.17 | a | 31.07 | 27.32 | 32.87 | 37.61 | 47.00 | 51.35 | 48.26 | 45.03 | 40.13 | 28.97 | 29.40 | a | 37.52 | |||||||||||
2004 | 23.74 | 31.54 | a | 30.52 | 33.47 | 40.68 | 45.83 | a | 51.58 | 50.19 | 44.11 | b | 37.34 | b | 33.83 | a | 31.17 | b | 37.83 | |||||||
2005 | 25.60 | a | 28.73 | b | 32.56 | f | 35.32 | e | 41.70 | d | 46.13 | g | 50.83 | h | 50.85 | e | 46.78 | g | 37.17 | g | 32.77 | 32.48 | b | 35.35 | e | |
2006 | 28.63 | a | 26.11 | 23.16 | 32.21 | a | 38.16 | 46.39 | b | 49.32 | 50.03 | 45.57 | b | 37.94 | 20.80 | 31.87 | a | 35.85 | ||||||||
2007 | 27.83 | a | 25.59 | a | 24.77 | a | 30.31 | a | 36.16 | 43.90 | 48.16 | 48.71 | 45.52 | a | 36.23 | 32.37 | 26.67 | a | 35.52 | |||||||
2008 | 24.58 | 25.97 | 30.23 | 31.13 | 36.35 | 41.07 | 46.23 | 47.55 | 45.03 | 36.97 | 33.23 | 23.61 | 35.16 | |||||||||||||
2009 | 24.48 | 24.43 | 25.61 | 30.90 | a | 35.26 | 43.03 | a | 49.45 | 50.19 | 45.14 | b | 39.74 | 31.93 | 26.10 | 35.52 | ||||||||||
2010 | 29.87 | 32.43 | 31.26 | 33.43 | 39.03 | 44.47 | 48.26 | 51.06 | 43.10 | 37.94 | 32.73 | 26.00 | 37.47 | |||||||||||||
2011 | 27.16 | 23.57 | 24.42 | 31.90 | 39.13 | 44.23 | 48.32 | 48.84 | 43.93 | 38.23 | 27.73 | 31.35 | 35.74 | |||||||||||||
2012 | 24.52 | 31.03 | 28.55 | 32.53 | 37.58 | 43.07 | 46.84 | 48.39 | 45.73 | 34.97 | 31.10 | 25.77 | 35.84 | |||||||||||||
2013 | 30.87 | 32.73 | b | 26.42 | 30.17 | 37.68 | 46.71 | b | 50.77 | 51.52 | 46.77 | 40.58 | 29.40 | 26.55 | 37.51 | |||||||||||
2014 | 34.03 | 20.14 | 26.87 | 32.83 | 41.65 | 44.93 | 50.97 | 51.00 | 47.37 | 39.10 | 32.50 | 32.58 | 37.83 | |||||||||||||
2015 | 33.13 | 29.07 | 32.10 | 34.20 | 43.13 | 48.47 | 52.03 | 50.19 | 45.07 | 40.77 | 33.13 | 31.06 | 39.36 | |||||||||||||
2016 | 34.35 | 33.59 | 34.45 | 38.50 | 42.68 | 48.50 | 53.32 | 53.42 | 46.53 | 35.26 | 33.93 | 25.58 | 40.01 | |||||||||||||
2017 | 27.61 | 26.29 | 24.45 | 33.63 | 39.65 | 46.07 | 50.35 | 51.13 | 46.73 | 37.45 | 26.93 | 30.16 | 36.70 | |||||||||||||
2018 | 28.39 | 22.75 | 28.55 | 34.03 | 40.45 | 44.73 | 51.10 | 51.68 | 41.10 | 41.94 | 36.23 | 31.84 | 37.73 | |||||||||||||
2019 | 28.77 | 20.68 | 29.94 | 34.10 | 42.97 | 47.97 | 52.81 | 49.87 | 45.40 | 37.29 | 37.60 | 34.29 | 38.47 | |||||||||||||
2020 | 22.65 | 30.59 | 27.19 | 32.63 | 39.65 | 45.43 | 51.19 | 51.23 | 44.13 | 37.81 | 30.07 | 34.06 | 37.22 | |||||||||||||
2021 | 31.84 | 23.96 | 28.97 | 31.77 | 39.77 | 46.43 | 49.16 | 51.19 | 46.23 | 35.97 | 31.10 | 20.55 | 36.41 | |||||||||||||
2022 | 26.16 | 30.89 | 31.87 | 32.00 | 37.06 | 46.97 | 51.52 | 52.71 | 46.40 | 41.58 | 30.70 | 25.45 | 37.78 | |||||||||||||
2023 | 32.87 | 27.68 | 26.19 | 32.80 | 40.06 | 46.13 | 50.65 | 53.29 | 47.53 | 40.71 | 35.03 | 32.61 | 38.80 | |||||||||||||
2024 | 28.00 | 28.17 | 28.52 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.23 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.82 | 27.20 | 28.99 | 32.75 | 38.78 | 44.75 | 49.35 | 49.55 | 44.62 | 38.50 | 31.35 | 27.97 | 36.86 | |||||||||||||
S.D. | 5.18 | 4.11 | 2.95 | 1.84 | 2.12 | 2.06 | 1.86 | 1.96 | 1.90 | 2.20 | 3.83 | 4.01 | 1.27 | |||||||||||||
SKEW | -0.59 | -0.67 | -0.27 | 0.49 | 0.09 | -0.17 | 0.20 | -0.16 | -0.38 | -0.03 | -1.25 | -0.16 | 0.61 | |||||||||||||
MAX | 34.35 | 33.59 | 34.45 | 38.50 | 43.13 | 48.50 | 53.32 | 53.42 | 47.77 | 42.65 | 38.75 | 34.29 | 40.01 | |||||||||||||
MIN | 14.23 | 15.43 | 23.16 | 29.13 | 34.10 | 40.57 | 46.23 | 45.42 | 40.77 | 34.19 | 18.00 | 20.52 | 34.90 | |||||||||||||
YRS | 38 | 41 | 40 | 39 | 40 | 36 | 36 | 38 | 40 | 39 | 41 | 39 | 31 |