YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.79 | g | 57.36 | e | 46.41 | b | 36.00 | b | 23.57 | c | 40.84 | h |
1963 | 14.97 | b | 31.81 | b | 31.86 | c | 36.69 | a | 51.94 | 56.11 | b | 67.17 | b | 64.61 | c | 57.18 | b | 47.60 | a | 32.66 | a | 17.07 | b | 42.47 | ||
1964 | 15.45 | 20.41 | b | 26.96 | c | 39.59 | a | 45.68 | 56.18 | b | 66.39 | 62.13 | 51.14 | b | 44.63 | l | 27.62 | i | 26.93 | b | 41.09 | b | ||||
1965 | 26.93 | a | 27.20 | c | 31.94 | 41.54 | b | 47.04 | g | 53.70 | c | 66.31 | b | 63.35 | 51.63 | 44.20 | a | 36.46 | b | 26.58 | 42.71 | a | ||||
1966 | 20.57 | a | 23.46 | 33.55 | 40.87 | 52.16 | 59.30 | 65.23 | 67.61 | 59.20 | 44.16 | 34.60 | 24.59 | b | 43.77 | |||||||||||
1967 | 20.32 | 27.82 | 36.00 | 36.70 | 47.90 | 57.20 | 69.23 | 65.77 | 56.93 | 44.35 | 33.83 | 15.55 | 42.63 | |||||||||||||
1968 | 11.81 | 33.17 | 34.87 | 38.43 | ----- | z | 58.93 | 65.52 | 60.16 | 53.07 | 42.35 | 30.87 | 17.87 | 40.64 | a | |||||||||||
1969 | 28.06 | 27.89 | 29.55 | 39.40 | 49.68 | 56.30 | 65.61 | 68.06 | 57.30 | 40.94 | 30.50 | 23.81 | 43.09 | |||||||||||||
1970 | 22.35 | 30.86 | 32.58 | 34.43 | 48.45 | 59.83 | 66.45 | b | 66.90 | b | 51.25 | b | 40.33 | a | 33.11 | b | 24.00 | a | 42.55 | |||||||
1971 | 19.70 | a | 26.70 | a | 29.70 | a | 38.32 | b | 46.07 | b | 56.96 | e | 67.00 | c | 66.31 | b | 49.14 | b | 39.94 | 29.43 | 22.50 | a | 40.98 | |||
1972 | 21.81 | e | 27.37 | b | 37.44 | d | 41.04 | c | 47.48 | d | ----- | z | 65.45 | b | 63.03 | a | 54.37 | 46.36 | c | 30.60 | e | 20.81 | d | 41.43 | a | |
1973 | 14.93 | a | 28.54 | b | 32.96 | c | 38.00 | a | 49.29 | j | 57.20 | e | 65.39 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.50 | f |
1974 | ----- | z | ----- | z | ----- | z | 38.73 | 50.84 | 59.77 | 64.23 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.39 | h | |||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | z | ----- | 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 | ----- | 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 | 52.22 | h | 59.88 | f | 63.52 | b | 64.00 | i | 50.46 | b | 41.22 | d | 33.37 | 25.88 | e | 42.89 | g | |
1987 | 20.85 | d | 29.56 | a | 32.10 | 42.54 | b | 50.07 | a | 60.13 | 61.45 | 61.77 | 54.40 | 47.06 | 33.31 | a | 22.07 | b | 42.94 | |||||||
1988 | 23.43 | a | 27.65 | c | ----- | z | 42.54 | q | 48.52 | f | 59.66 | a | 66.94 | 63.33 | a | 50.83 | 46.63 | a | 32.69 | a | 20.34 | b | 43.50 | c | ||
1989 | 12.30 | a | 25.52 | c | 37.31 | b | 47.53 | 51.77 | 58.70 | 66.52 | 62.48 | 54.59 | a | 41.90 | 31.70 | 21.63 | a | 42.66 | ||||||||
1990 | 21.34 | b | 26.42 | b | 37.03 | a | 44.77 | 50.39 | 60.96 | b | 66.68 | 62.61 | 59.59 | a | 42.82 | c | 30.80 | 14.77 | a | 43.18 | ||||||
1991 | 22.57 | c | 27.32 | 33.03 | b | 39.07 | 45.60 | a | 57.47 | 65.74 | 64.81 | 56.30 | 44.24 | b | 31.48 | a | 24.97 | 42.72 | ||||||||
1992 | 21.10 | 32.38 | 37.62 | b | 47.73 | ----- | z | 59.67 | x | 62.42 | 62.61 | 54.86 | b | 46.48 | 28.71 | b | 19.07 | c | 41.30 | b | ||||||
1993 | 27.43 | a | 30.12 | b | 35.31 | b | 41.34 | a | 50.20 | a | 55.14 | a | 61.90 | a | 61.61 | 51.33 | 42.30 | a | 28.90 | a | 19.83 | g | 44.14 | a | ||
1994 | 21.63 | d | 25.60 | c | 36.18 | c | 41.00 | c | 50.04 | e | 61.07 | b | 66.15 | d | 66.21 | b | 54.15 | d | 40.23 | e | 27.81 | d | 24.31 | e | 42.86 | |
1995 | 26.96 | d | 31.11 | i | 33.96 | f | 37.59 | h | 45.35 | h | 53.48 | e | 60.07 | d | ----- | z | ----- | z | 41.44 | d | 34.72 | e | 25.57 | c | 40.38 | f |
1996 | 23.67 | d | 29.76 | d | 34.04 | e | 40.48 | c | ----- | z | ----- | z | ----- | z | 65.29 | c | 54.70 | 43.65 | h | 33.77 | 28.84 | 38.82 | d | |||
1997 | 29.19 | 27.64 | 35.00 | d | 39.90 | a | 52.80 | a | 59.03 | a | 63.74 | 64.65 | 58.80 | e | 42.27 | a | 33.21 | a | 23.12 | f | 46.02 | a | ||||
1998 | 26.32 | c | 30.50 | 35.53 | a | 45.71 | b | 48.00 | 56.00 | 68.42 | 67.71 | 58.97 | 43.68 | 34.07 | 24.45 | 44.95 | ||||||||||
1999 | 28.68 | 31.18 | 36.84 | 38.87 | 49.45 | 58.63 | 68.10 | a | 64.00 | 55.97 | 42.81 | 32.33 | 23.68 | 44.21 | ||||||||||||
2000 | 29.00 | 32.03 | 35.55 | 46.47 | 54.81 | 64.53 | 68.74 | 69.16 | 57.43 | 46.97 | 29.43 | 27.06 | 46.77 | |||||||||||||
2001 | 26.55 | 30.21 | 38.74 | 41.73 | 54.40 | a | 60.93 | 67.26 | 65.10 | 58.43 | 47.71 | 35.33 | 24.26 | 45.89 | ||||||||||||
2002 | 24.35 | 23.36 | 30.58 | 46.13 | 51.48 | 62.50 | 72.55 | 66.03 | 58.67 | 44.03 | ----- | z | ----- | z | 47.97 | b | ||||||||||
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.74 | c | 70.79 | c | 67.67 | a | 57.43 | 48.61 | c | 37.39 | l | 22.14 | q | 61.25 | g | |
2004 | 20.56 | m | 26.47 | j | 40.00 | c | 44.15 | d | 52.87 | a | 60.86 | a | 67.43 | a | 64.70 | a | 55.50 | 46.03 | a | 34.72 | e | ----- | z | 51.81 | c | |
2005 | ----- | z | ----- | z | 35.83 | a | 40.07 | a | 50.52 | 55.40 | 67.43 | a | 63.50 | a | 54.50 | 45.06 | 33.72 | a | ----- | z | 49.56 | c | ||||
2006 | ----- | z | ----- | z | 32.58 | 41.86 | a | 53.84 | 63.37 | 70.45 | 66.16 | 53.60 | 44.67 | a | 33.07 | c | 23.17 | a | 48.28 | b | ||||||
2007 | 19.30 | a | 30.61 | 36.97 | 44.15 | c | 51.61 | 61.96 | e | 69.80 | a | 67.68 | 58.47 | 42.52 | 33.52 | a | 25.00 | c | 45.13 | |||||||
2008 | 22.29 | c | 28.59 | 34.03 | a | 37.66 | a | 47.26 | 57.17 | 68.58 | 67.00 | 56.60 | 43.03 | 35.28 | a | 25.57 | c | 43.59 | ||||||||
2009 | 25.85 | d | 28.75 | 32.27 | a | 39.14 | b | 54.03 | a | 57.70 | 67.68 | 63.45 | 59.00 | a | 41.94 | 31.68 | b | 21.52 | 43.58 | |||||||
2010 | 23.77 | 30.68 | 33.60 | f | 39.32 | e | 45.61 | 59.52 | a | 68.81 | 64.16 | 56.03 | 47.13 | 32.21 | b | 32.44 | d | 45.43 | a | |||||||
2011 | 21.03 | a | 24.21 | 34.80 | a | 39.39 | b | 44.87 | 57.63 | 66.55 | 67.48 | 57.50 | 44.39 | 32.03 | 23.81 | 42.81 | ||||||||||
2012 | 25.00 | b | 28.55 | 34.29 | 42.55 | a | 51.70 | h | 62.47 | 68.46 | c | 67.90 | a | 57.57 | 45.28 | b | 32.59 | c | 25.38 | b | 44.55 | a | ||||
2013 | 17.68 | 25.04 | b | 34.19 | 41.47 | 50.90 | 62.87 | 69.43 | a | 64.74 | 57.33 | 39.32 | 33.20 | 18.29 | 42.87 | |||||||||||
2014 | 24.00 | 31.14 | 34.52 | 41.77 | 48.03 | 59.70 | 70.16 | 63.19 | 59.70 | 47.32 | 31.69 | a | 29.36 | f | 46.47 | a | ||||||||||
2015 | 26.32 | 33.22 | a | 37.40 | a | 40.47 | 48.21 | c | 61.83 | 65.13 | 65.65 | 58.85 | c | 49.71 | 30.10 | 22.32 | 44.93 | |||||||||
2016 | 23.58 | 27.93 | 36.10 | 42.80 | 50.27 | a | 64.43 | 67.03 | b | 63.32 | 55.71 | b | 48.71 | 36.30 | 25.39 | 45.13 | ||||||||||
2017 | 27.19 | 35.15 | a | 38.10 | 41.77 | 47.48 | 63.13 | 68.35 | 65.13 | 55.03 | 41.54 | e | 34.90 | a | 22.81 | 45.05 | ||||||||||
2018 | 25.06 | 27.89 | 33.74 | 42.57 | 52.55 | 63.67 | 68.87 | a | 67.48 | 58.63 | 46.06 | 28.88 | d | 26.22 | v | 46.86 | a | |||||||||
2019 | 24.74 | 24.40 | c | 35.50 | m | 43.63 | k | 45.74 | d | 56.89 | b | 63.68 | f | 66.11 | m | 58.07 | 36.87 | 30.73 | 26.26 | 37.96 | d | |||||
2020 | 23.13 | 22.00 | y | 34.95 | i | 41.70 | t | 54.90 | u | 59.60 | 65.55 | 67.42 | 55.57 | 44.26 | 31.36 | b | 18.90 | 45.72 | d | |||||||
2021 | 21.48 | 28.75 | 31.71 | 41.57 | 50.06 | 65.11 | b | 71.03 | 65.84 | 59.03 | 42.19 | 35.07 | 27.06 | 44.91 | ||||||||||||
2022 | 21.81 | 22.57 | 31.13 | 42.60 | 52.00 | 63.20 | ----- | z | 68.16 | 60.80 | 44.10 | 26.73 | 24.65 | 41.61 | a | |||||||||||
2023 | 26.45 | 23.82 | 32.23 | 38.90 | 51.26 | 55.43 | 67.17 | a | 64.39 | 56.90 | 44.55 | 33.10 | 25.77 | 43.33 | ||||||||||||
2024 | 28.65 | 31.14 | 36.84 | 38.73 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.21 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.88 | 28.30 | 34.40 | 41.12 | 49.91 | 59.42 | 66.87 | 65.12 | 56.04 | 44.08 | 32.40 | 23.38 | 43.72 | |||||||||||||
S.D. | 4.31 | 3.19 | 2.73 | 2.91 | 2.69 | 3.00 | 2.55 | 2.13 | 2.82 | 2.76 | 2.30 | 3.56 | 1.32 | |||||||||||||
SKEW | -0.77 | -0.27 | -0.37 | 0.37 | -0.15 | 0.01 | -0.40 | -0.14 | -0.65 | -0.16 | -0.37 | -0.40 | 0.39 | |||||||||||||
MAX | 29.19 | 35.15 | 40.00 | 47.73 | 54.81 | 65.11 | 72.55 | 69.16 | 60.80 | 49.71 | 36.46 | 32.44 | 46.77 | |||||||||||||
MIN | 11.81 | 20.41 | 26.96 | 34.43 | 44.87 | 53.48 | 60.07 | 60.16 | 49.14 | 36.87 | 26.73 | 14.77 | 40.98 | |||||||||||||
YRS | 45 | 43 | 43 | 44 | 39 | 46 | 47 | 45 | 48 | 47 | 46 | 41 | 25 |