YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.67 | f | 68.66 | b | 66.65 | 59.50 | 40.23 | 33.40 | j | 23.67 | j | 58.76 | h | |||
1967 | 20.68 | 29.39 | e | 37.47 | a | 40.13 | 48.94 | 60.03 | a | 69.13 | 63.79 | b | 57.06 | m | 43.00 | m | 34.39 | g | 29.00 | o | 46.20 | d | ||||
1968 | 32.21 | g | 36.92 | d | 35.32 | c | 39.54 | f | 45.60 | f | 59.74 | g | 65.71 | j | 63.78 | h | 54.92 | e | 43.27 | e | 34.03 | 23.39 | 37.98 | f | ||
1969 | 31.00 | a | 32.92 | c | 33.48 | d | 42.65 | g | 52.90 | a | 58.78 | c | ----- | z | 69.92 | e | 59.93 | c | 45.48 | 37.89 | b | 32.43 | c | 45.47 | b | |
1970 | 26.61 | c | 33.91 | e | 35.45 | 37.45 | a | 50.86 | c | 61.52 | c | 69.46 | c | 68.52 | 58.67 | 37.31 | b | 32.07 | 30.22 | h | 46.53 | a | ||||
1971 | 23.37 | a | 30.25 | 34.74 | 42.07 | 47.60 | a | 65.10 | i | 69.07 | c | 65.81 | 57.83 | 47.81 | d | 35.04 | f | 28.75 | c | 44.73 | b | |||||
1972 | 23.36 | c | 28.13 | f | 37.88 | g | 40.24 | m | 47.32 | f | 62.00 | c | 69.62 | b | 66.50 | e | 59.41 | h | 51.12 | e | 30.27 | d | 25.37 | d | 46.89 | e |
1973 | 25.23 | e | 31.40 | c | 34.59 | b | 36.33 | c | 49.46 | g | 58.46 | b | 67.43 | c | 64.69 | e | 57.27 | h | 45.20 | f | ----- | z | 25.14 | j | 45.45 | e |
1974 | 30.13 | 26.79 | d | 37.88 | g | 42.76 | m | 54.20 | u | 62.77 | h | 67.68 | f | 62.85 | k | 58.94 | n | 50.44 | f | 32.65 | g | 24.52 | d | 27.15 | i | |
1975 | 24.65 | e | 28.00 | l | 35.16 | 37.07 | a | 48.43 | c | 56.67 | c | 68.10 | 65.82 | c | 59.11 | b | 42.42 | 31.30 | 28.26 | 45.18 | a | |||||
1976 | 26.19 | 35.72 | 34.52 | 43.54 | b | 52.23 | 58.57 | 68.94 | 64.06 | 58.33 | 43.97 | a | 33.63 | 23.19 | 45.24 | |||||||||||
1977 | 31.06 | 31.36 | 32.97 | 43.60 | 50.71 | 62.63 | 70.29 | 68.55 | 63.86 | i | 50.10 | 34.40 | 32.13 | a | 46.16 | a | ||||||||||
1978 | 34.52 | 36.14 | 40.87 | a | 39.20 | 46.57 | a | 57.00 | b | 66.68 | 63.10 | 58.93 | 50.03 | 40.23 | 27.55 | 46.73 | ||||||||||
1979 | 30.90 | 30.57 | 34.00 | 37.33 | 48.71 | 57.77 | 63.71 | 60.74 | 59.47 | 44.68 | 29.10 | 25.87 | 43.57 | |||||||||||||
1980 | 32.52 | 35.79 | 34.55 | 37.97 | ----- | z | 57.50 | 68.39 | 64.17 | b | 58.86 | a | 43.13 | 32.67 | 29.97 | 45.05 | a | |||||||||
1981 | 33.33 | a | 33.75 | 37.00 | 46.57 | 51.03 | 63.60 | 69.23 | a | 67.65 | 59.03 | 46.87 | 34.00 | 28.26 | 47.53 | |||||||||||
1982 | 30.77 | 35.54 | 36.90 | 40.37 | 50.87 | 55.47 | 66.00 | 66.82 | c | 61.21 | a | 40.87 | a | 37.60 | 30.90 | 46.11 | ||||||||||
1983 | 29.42 | 33.96 | 37.07 | a | 36.03 | 46.59 | b | 54.03 | 65.50 | a | 67.48 | 65.45 | a | 51.26 | 38.77 | 30.97 | a | 46.38 | ||||||||
1984 | 30.48 | 26.93 | 34.45 | 41.41 | a | 55.10 | 63.87 | 70.55 | 68.13 | a | 62.83 | 47.74 | 36.43 | 35.20 | a | 47.76 | ||||||||||
1985 | 32.07 | a | 31.39 | 39.06 | 43.50 | 52.90 | 61.30 | 69.20 | a | 66.83 | a | 58.37 | 49.48 | 35.87 | 27.77 | 47.31 | ||||||||||
1986 | 28.60 | a | 36.04 | 40.52 | 45.83 | 53.71 | 64.13 | 68.03 | b | 70.29 | 56.90 | 45.20 | a | 37.67 | 31.00 | 48.16 | ||||||||||
1987 | 25.55 | 33.29 | 33.94 | 46.37 | 53.35 | 61.67 | 65.52 | 67.00 | 57.29 | b | 51.84 | 35.37 | 28.43 | a | 46.63 | |||||||||||
1988 | 28.90 | a | 33.97 | 34.13 | 44.50 | 52.68 | 64.00 | 71.10 | 69.52 | 55.27 | 53.06 | 35.00 | 29.29 | 47.62 | ||||||||||||
1989 | 29.26 | 36.50 | 39.35 | 48.33 | 54.17 | a | 61.34 | a | 71.90 | a | 69.55 | 61.27 | 48.55 | 35.03 | 25.94 | 48.43 | ||||||||||
1990 | 27.55 | 32.32 | 41.10 | a | 48.17 | a | 52.40 | a | 65.31 | a | 69.42 | 65.55 | 64.17 | 45.94 | 35.80 | 27.97 | 47.97 | |||||||||
1991 | 31.97 | a | 35.22 | a | 34.42 | 39.00 | 47.26 | 55.17 | 68.67 | a | ----- | z | ----- | z | 38.43 | x | 33.17 | 32.53 | a | 41.93 | c | |||||
1992 | 23.39 | 35.24 | 35.06 | 42.53 | 54.71 | 57.87 | 65.94 | 65.52 | 57.67 | 44.65 | 29.23 | 32.19 | 45.33 | |||||||||||||
1993 | 37.74 | 36.33 | a | 38.13 | a | 41.00 | 52.26 | 58.10 | 67.77 | a | 67.84 | 56.13 | 47.13 | 32.57 | 24.90 | a | 46.66 | |||||||||
1994 | 22.42 | 29.71 | 37.74 | 43.97 | 51.84 | 65.57 | b | 68.90 | 70.62 | b | 60.63 | 46.39 | c | 35.77 | 32.52 | 47.17 | ||||||||||
1995 | ----- | z | 36.04 | 37.48 | 38.63 | 48.19 | 55.60 | 68.13 | 70.42 | 61.93 | 45.16 | ----- | z | 26.09 | t | 51.29 | c | |||||||||
1996 | 26.26 | 39.18 | a | 36.55 | 44.46 | b | 53.97 | 64.00 | b | 72.11 | c | 69.13 | p | 59.20 | 47.68 | 35.90 | 28.19 | 46.14 | a | |||||||
1997 | 32.19 | 31.00 | 37.00 | a | 43.32 | e | 56.77 | 59.00 | a | 65.81 | e | 68.13 | 65.27 | 47.19 | d | 37.23 | 28.96 | c | 47.66 | |||||||
1998 | 27.90 | 33.32 | 34.61 | 34.73 | 45.61 | 56.27 | 70.29 | 68.90 | a | 60.67 | 46.81 | 34.37 | 28.97 | 45.20 | ||||||||||||
1999 | 26.66 | b | 28.75 | 36.77 | 42.00 | 50.23 | 61.38 | d | 69.35 | 67.39 | 61.83 | 43.87 | 35.07 | b | 26.77 | a | 45.84 | |||||||||
2000 | 28.06 | 34.93 | 37.19 | 47.13 | 56.52 | 66.57 | 69.48 | 68.42 | 60.73 | 50.87 | 31.47 | 25.70 | a | 48.09 | ||||||||||||
2001 | 29.71 | 29.50 | 36.86 | b | 43.67 | 55.16 | 64.14 | a | 69.13 | a | 66.97 | 60.96 | c | 50.19 | 39.55 | a | 23.28 | b | 47.43 | |||||||
2002 | 24.07 | a | 26.31 | b | 31.03 | a | 49.14 | a | 52.74 | 65.13 | 70.14 | b | 67.21 | b | 63.03 | a | 47.61 | c | 35.23 | 29.93 | a | 46.80 | ||||
2003 | 30.94 | 32.72 | c | 36.94 | 40.87 | 53.52 | b | 63.80 | 73.00 | 72.10 | b | 62.93 | 51.71 | 36.52 | c | 25.61 | 48.39 | |||||||||
2004 | 30.04 | d | 28.46 | c | 41.52 | b | 45.77 | d | 55.50 | c | 61.11 | b | 68.16 | 66.23 | a | 58.79 | b | 47.26 | 36.11 | b | 27.12 | e | 47.17 | |||
2005 | 34.40 | a | 40.68 | c | 39.66 | b | 43.86 | a | 54.86 | b | 63.67 | 69.89 | c | 68.83 | a | 61.87 | 51.63 | a | 35.41 | c | 25.74 | 49.21 | ||||
2006 | 25.41 | d | 31.23 | f | 36.70 | a | 48.03 | 57.32 | 68.38 | a | 71.73 | a | 67.72 | b | 58.14 | a | 47.10 | b | 34.20 | 24.28 | b | 49.00 | a | |||
2007 | 25.08 | f | 33.19 | b | 39.27 | e | 45.72 | a | 56.00 | a | 62.96 | b | 71.20 | a | 69.70 | a | 62.29 | b | 48.48 | b | 39.00 | a | 28.10 | 50.54 | a | |
2008 | 30.29 | 32.00 | b | 33.96 | d | 42.03 | a | 50.89 | d | 62.93 | c | 70.28 | b | 68.34 | b | 60.70 | c | 45.47 | a | 37.29 | b | 29.97 | 47.01 | |||
2009 | 29.83 | b | 30.48 | a | 37.50 | c | 44.03 | 56.97 | 61.89 | c | 72.46 | c | 68.31 | b | 61.29 | b | 46.93 | a | 35.17 | 27.04 | c | 47.66 | ||||
2010 | 28.30 | a | 32.88 | c | 36.84 | f | 43.96 | g | 48.59 | b | 62.45 | h | 72.83 | b | 69.64 | c | 62.21 | f | 51.14 | c | 31.38 | a | 30.77 | a | 45.69 | d |
2011 | 23.19 | e | 24.70 | a | 38.28 | f | 46.79 | b | 48.69 | e | 61.45 | h | 71.88 | g | 72.04 | e | 63.85 | d | 47.07 | d | 36.35 | d | 28.83 | g | 45.33 | d |
2012 | 27.30 | a | 31.00 | a | 34.60 | k | 45.43 | b | 55.57 | a | 64.21 | b | 71.92 | e | 71.80 | a | 60.92 | d | 46.28 | f | 35.72 | l | 30.17 | s | 53.52 | d |
2013 | 24.64 | f | 27.67 | a | 34.75 | w | ----- | z | ----- | z | ----- | z | ----- | z | 70.17 | s | 62.15 | c | 41.20 | f | 36.09 | g | 27.11 | c | 38.97 | i |
2014 | 24.73 | a | 34.00 | a | 38.74 | 44.73 | 51.42 | 64.17 | 71.45 | 66.39 | 66.24 | a | 48.48 | b | 32.43 | 31.58 | 47.86 | |||||||||
2015 | 31.87 | 36.96 | a | 36.77 | r | 44.21 | a | 52.21 | b | 67.47 | 71.00 | a | 70.23 | a | 64.45 | a | 51.93 | a | 32.97 | 24.81 | 49.83 | a | ||||
2016 | 27.61 | 29.21 | 37.48 | 43.87 | 52.10 | b | 66.13 | 71.16 | 66.77 | a | 59.33 | 46.87 | 38.33 | 29.80 | a | 47.39 | ||||||||||
2017 | 31.35 | 33.07 | 38.71 | ----- | z | 52.50 | e | 64.37 | 71.70 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.00 | g | ||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.00 | 29.00 | k | |
2019 | 26.68 | ----- | z | 36.89 | c | 45.17 | 47.35 | 61.20 | 70.81 | 71.07 | a | 61.70 | 43.32 | 35.17 | 29.74 | 48.10 | a | |||||||||
2020 | 27.26 | 29.31 | 37.03 | 42.97 | 54.47 | a | 61.93 | 71.74 | 70.35 | 60.20 | 44.23 | 34.93 | a | 22.74 | 46.43 | |||||||||||
2021 | 25.23 | 28.48 | a | 33.05 | k | 46.66 | a | 52.90 | 67.53 | 70.71 | 68.76 | b | 61.29 | b | 43.61 | 35.40 | 29.74 | 48.21 | a | |||||||
2022 | 26.97 | 25.32 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.97 | k | |
2023 | ----- | z | ----- | z | ----- | z | 42.04 | e | 46.62 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.04 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.39 | 32.50 | 36.61 | 42.87 | 52.00 | 61.59 | 69.39 | 67.77 | 60.46 | 46.94 | 34.94 | 28.21 | 47.03 | |||||||||||||
S.D. | 3.53 | 3.46 | 2.32 | 3.57 | 3.06 | 3.61 | 2.10 | 2.39 | 2.58 | 3.40 | 2.59 | 2.90 | 1.17 | |||||||||||||
SKEW | 0.12 | -0.06 | 0.11 | -0.43 | -0.26 | -0.26 | -0.53 | -0.46 | 0.11 | -0.40 | -0.25 | 0.03 | -0.87 | |||||||||||||
MAX | 37.74 | 40.68 | 41.52 | 49.14 | 57.32 | 68.38 | 73.00 | 72.10 | 66.24 | 53.06 | 40.23 | 35.20 | 49.21 | |||||||||||||
MIN | 20.68 | 24.70 | 31.03 | 34.73 | 45.61 | 54.03 | 63.71 | 60.74 | 54.92 | 37.31 | 29.10 | 22.74 | 43.57 | |||||||||||||
YRS | 51 | 50 | 46 | 48 | 48 | 48 | 49 | 49 | 47 | 48 | 46 | 48 | 30 |