YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.67 | 61.48 | 62.87 | a | 53.31 | a | 34.00 | d | 34.53 | ----- | z | 49.31 | f | |||
1968 | 23.04 | c | 32.13 | f | 32.73 | e | 34.38 | f | 44.84 | 54.30 | 63.00 | d | 55.37 | a | 50.61 | b | 40.54 | c | 35.37 | 25.89 | c | 42.57 | b | |||
1969 | 28.17 | a | 27.33 | a | 29.50 | e | 35.90 | 48.23 | a | 53.00 | a | 61.10 | 59.00 | a | 55.63 | c | 39.03 | 32.97 | 30.29 | c | 41.68 | |||||
1970 | 29.90 | a | 31.85 | a | 31.41 | b | 34.11 | c | 45.87 | 53.03 | a | ----- | z | 60.58 | 47.97 | 40.03 | 36.93 | 27.77 | a | 39.95 | a | |||||
1971 | 28.73 | a | 29.07 | 30.17 | a | 36.38 | a | 42.27 | a | 50.13 | 61.13 | 62.07 | a | 49.97 | 38.66 | b | 31.86 | b | 22.58 | 40.25 | ||||||
1972 | 24.13 | a | 28.77 | c | 37.06 | 37.24 | a | 46.43 | a | 55.77 | 62.52 | 60.06 | 51.47 | ----- | z | ----- | z | ----- | z | 44.83 | c | |||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.61 | 35.59 | a | 31.45 | 36.55 | i | ||
1974 | ----- | z | ----- | z | 33.44 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.44 | k |
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 | 63.74 | 42.70 | 30.26 | ----- | z | ----- | z | 45.57 | i | |||
1978 | ----- | z | ----- | z | 34.40 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | 27.30 | e | ----- | z | ----- | z | ----- | z | ----- | z | 59.00 | r | 56.85 | r | 57.20 | 49.35 | 34.47 | 31.13 | 39.89 | g | ||||
1980 | 31.26 | 35.48 | d | 32.84 | 41.00 | a | 46.03 | 50.45 | a | 61.42 | 59.40 | a | 53.30 | 45.13 | 37.42 | d | 30.86 | c | 43.72 | |||||||
1981 | 32.38 | b | 32.14 | 35.80 | a | 42.17 | 47.45 | 57.60 | 60.61 | 63.32 | 57.83 | a | 43.77 | 39.53 | 33.97 | 45.55 | ||||||||||
1982 | 24.70 | a | 31.29 | 34.79 | c | 36.74 | c | 47.94 | 55.13 | 60.90 | 61.29 | 51.07 | 43.23 | 33.23 | 29.27 | a | 42.46 | |||||||||
1983 | 30.23 | a | 34.37 | a | 35.57 | c | 35.90 | a | 46.52 | 53.33 | 57.23 | 61.52 | 53.80 | 46.84 | 36.75 | b | 32.13 | a | 43.68 | |||||||
1984 | 26.71 | 28.44 | b | 35.48 | b | 37.45 | a | 47.65 | 52.03 | 63.97 | 61.13 | 52.90 | a | 37.00 | i | 31.14 | i | 23.48 | j | 45.08 | c | |||||
1985 | 22.09 | i | 26.00 | g | 28.05 | i | 37.95 | i | 41.88 | f | 56.33 | 64.19 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.26 | j | ||
1986 | ----- | z | ----- | z | ----- | z | 40.97 | 49.36 | c | 59.14 | b | 62.52 | 67.25 | c | 50.79 | b | 45.33 | a | 37.80 | 30.61 | 49.31 | c | ||||
1987 | 25.65 | 33.15 | a | 36.90 | a | 45.17 | a | 52.21 | b | 58.00 | e | 59.71 | c | 63.84 | 58.69 | a | 51.77 | 38.53 | 30.60 | a | 46.19 | |||||
1988 | 28.32 | 30.69 | 35.41 | b | 43.23 | 47.77 | a | 57.17 | 67.00 | 66.23 | a | 56.97 | 51.84 | 38.87 | 27.84 | 45.94 | ||||||||||
1989 | 24.81 | 23.29 | 38.30 | a | 44.96 | b | 47.74 | 58.80 | 63.77 | a | 61.03 | 55.29 | b | 45.60 | a | 35.86 | a | 29.20 | a | 44.05 | ||||||
1990 | 28.87 | 25.86 | 36.87 | 46.73 | 47.35 | 54.83 | 65.03 | 63.10 | a | 58.14 | a | 47.71 | 35.46 | d | 19.65 | 44.13 | ||||||||||
1991 | ----- | z | 34.57 | 33.81 | 37.90 | 44.16 | 53.03 | 64.48 | b | 63.55 | b | 58.03 | 50.10 | a | 38.53 | 31.90 | 46.37 | a | ||||||||
1992 | 28.77 | a | 35.66 | 39.30 | a | 46.07 | 54.37 | a | 58.66 | a | 62.97 | 64.77 | 57.07 | a | 49.63 | a | 35.14 | a | 27.58 | 46.66 | ||||||
1993 | 24.90 | 29.21 | 41.52 | 39.64 | b | 48.06 | 52.70 | 58.29 | 60.13 | 55.43 | 47.65 | 32.57 | 30.90 | 43.42 | ||||||||||||
1994 | 29.50 | a | 30.00 | 37.61 | 41.72 | a | 50.73 | a | 55.62 | a | 65.33 | a | 62.90 | a | 56.37 | 44.79 | c | 30.14 | a | 28.78 | d | 44.46 | ||||
1995 | 35.08 | e | 35.08 | c | 35.97 | b | 38.29 | b | 46.43 | a | 52.67 | 60.93 | b | 61.37 | a | 57.21 | b | 45.74 | d | 41.26 | c | 35.87 | 45.49 | |||
1996 | 32.30 | a | 34.55 | 36.00 | a | 41.24 | a | 47.72 | b | 56.88 | f | 66.61 | c | 62.50 | c | 53.97 | 44.21 | c | 37.23 | 33.94 | 44.57 | a | ||||
1997 | 29.38 | b | 31.93 | a | 38.07 | a | 41.24 | a | 52.53 | a | 54.27 | d | 61.03 | b | 63.50 | c | 56.03 | 44.45 | b | 38.68 | b | 28.31 | b | 44.95 | ||
1998 | 33.24 | b | 33.50 | 36.16 | 39.17 | a | 43.23 | 53.30 | c | 65.79 | b | 65.00 | c | 57.38 | f | 43.76 | b | 37.19 | c | 25.93 | d | 43.30 | a | |||
1999 | 29.97 | a | 32.75 | d | 33.48 | d | 37.31 | d | 46.97 | 55.39 | b | 61.92 | f | 60.89 | c | 56.85 | d | 48.45 | 41.14 | b | 29.34 | b | 42.96 | a | ||
2000 | 33.77 | 37.04 | c | 41.40 | a | 49.04 | c | 52.71 | n | 60.14 | b | 62.00 | b | 63.77 | e | 54.46 | f | 46.48 | h | 32.96 | f | 32.33 | m | 49.59 | e | |
2001 | 27.57 | j | 28.35 | e | 38.26 | h | 36.75 | f | 53.00 | j | 57.58 | f | 62.29 | j | 65.62 | g | 57.50 | r | 49.48 | j | 38.33 | l | 30.79 | q | 28.35 | k |
2002 | 26.25 | s | 32.12 | l | 32.17 | m | 41.28 | e | 46.43 | h | 58.53 | m | 66.50 | k | 62.18 | n | 56.55 | j | 44.83 | a | 36.69 | a | 33.32 | c | 39.03 | h |
2003 | 35.67 | a | 30.43 | 36.38 | b | 37.07 | 48.26 | 59.80 | 66.73 | a | 62.77 | a | 58.20 | 50.50 | a | 34.96 | b | 32.50 | c | 46.11 | ||||||
2004 | 29.54 | e | 32.46 | a | 39.30 | a | 42.80 | 48.10 | a | 58.20 | 66.63 | a | 63.71 | 55.83 | 47.20 | a | 35.63 | 29.90 | b | 45.78 | ||||||
2005 | 28.29 | c | 32.57 | 35.68 | 38.59 | a | 49.16 | 53.11 | b | 67.53 | a | 65.44 | d | 54.39 | b | 47.13 | a | 37.59 | a | 33.65 | e | 45.26 | ||||
2006 | 31.50 | c | 29.85 | a | 30.17 | h | 40.95 | i | 49.93 | b | 59.47 | 67.10 | a | 63.76 | f | 59.60 | j | 45.21 | b | 37.31 | a | 27.93 | a | 43.54 | d | |
2007 | 23.17 | g | 31.87 | m | 37.14 | b | 42.62 | a | 51.25 | c | 58.32 | b | 66.80 | k | 64.78 | d | 54.41 | a | 44.70 | a | 37.36 | b | 27.57 | h | 48.82 | d |
2008 | 26.64 | c | 30.68 | d | 33.96 | d | 36.96 | e | 46.54 | g | 58.10 | i | 65.11 | c | 68.19 | 59.36 | e | 49.50 | e | 41.12 | e | 29.75 | g | 45.73 | c | |
2009 | 29.50 | i | 34.89 | 34.00 | 39.53 | 52.94 | 56.83 | 66.35 | 64.14 | c | 61.10 | 45.42 | 36.83 | 24.32 | 46.94 | a | ||||||||||
2010 | 32.65 | 33.14 | 34.39 | 36.53 | 41.71 | 55.53 | 64.73 | a | 61.74 | 56.47 | 49.03 | 34.57 | 34.66 | b | 44.60 | |||||||||||
2011 | 29.13 | 28.52 | a | 35.55 | 36.31 | a | 42.03 | 54.20 | 62.39 | 64.00 | 60.40 | 48.26 | 36.03 | 27.65 | 43.71 | |||||||||||
2012 | 29.81 | 30.69 | 37.03 | 42.60 | 49.26 | 55.93 | 64.10 | 67.45 | 61.10 | 50.10 | 40.87 | 31.26 | 46.68 | |||||||||||||
2013 | 22.90 | 29.46 | 37.06 | 41.43 | 50.00 | 59.03 | 67.45 | 63.23 | 57.40 | 42.97 | 37.67 | 22.61 | 44.27 | |||||||||||||
2014 | 29.74 | 35.11 | 37.39 | 42.33 | 50.48 | 58.50 | 67.84 | 64.13 | 59.53 | 48.90 | 37.07 | 34.26 | 47.11 | |||||||||||||
2015 | 32.19 | 36.00 | 39.94 | 39.33 | 48.97 | 61.87 | 63.52 | 64.32 | 58.00 | 51.29 | 34.07 | 31.77 | 46.77 | |||||||||||||
2016 | 30.94 | 33.38 | 37.45 | 43.57 | 49.00 | 59.90 | 64.00 | b | 66.37 | a | 57.97 | 48.45 | 40.13 | 28.90 | 46.67 | |||||||||||
2017 | 28.52 | 35.32 | 38.10 | 40.97 | 51.48 | 59.80 | 67.93 | a | 67.97 | 57.47 | 44.10 | 41.17 | 28.06 | 46.74 | ||||||||||||
2018 | 34.58 | 28.21 | 33.55 | 41.07 | 51.26 | 57.80 | 69.03 | 65.48 | 57.47 | 46.48 | 36.83 | 31.23 | 46.08 | |||||||||||||
2019 | 31.16 | 29.04 | 34.16 | 43.97 | 47.87 | 58.20 | 63.90 | 64.71 | 54.73 | 40.97 | 37.43 | 32.55 | 44.89 | |||||||||||||
2020 | 32.26 | 29.66 | 34.10 | 42.70 | 49.42 | e | 56.13 | 65.19 | 67.74 | 60.33 | 56.33 | y | 35.53 | 30.77 | 45.80 | a | ||||||||||
2021 | 30.94 | 31.04 | 33.61 | 42.27 | 52.04 | d | 62.33 | 70.87 | 65.74 | 58.65 | m | 46.52 | 39.35 | d | 32.10 | 46.07 | a | |||||||||
2022 | 30.61 | 29.29 | 37.84 | 40.10 | 46.26 | 58.47 | 67.74 | 67.52 | 61.90 | 50.42 | 31.77 | 31.22 | d | 46.09 | ||||||||||||
2023 | 25.88 | o | 28.89 | 32.13 | 38.93 | 49.74 | 56.18 | s | 66.00 | o | 65.10 | 56.67 | 47.84 | 37.47 | 33.58 | 43.37 | c | |||||||||
2024 | 33.32 | 33.66 | 35.94 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.30 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.62 | 31.39 | 35.75 | 40.46 | 48.21 | 56.18 | 64.12 | 63.50 | 55.81 | 45.62 | 36.69 | 29.96 | 44.94 | |||||||||||||
S.D. | 3.19 | 3.02 | 2.61 | 3.27 | 2.90 | 3.11 | 2.95 | 2.64 | 3.73 | 4.39 | 2.61 | 3.41 | 1.65 | |||||||||||||
SKEW | -0.32 | -0.23 | -0.07 | 0.33 | -0.30 | -0.17 | -0.08 | -0.43 | -1.13 | -1.27 | -0.24 | -0.91 | -0.96 | |||||||||||||
MAX | 35.67 | 37.04 | 41.52 | 49.04 | 54.37 | 62.33 | 70.87 | 68.19 | 61.90 | 51.84 | 41.26 | 35.87 | 47.11 | |||||||||||||
MIN | 22.90 | 23.29 | 29.50 | 34.11 | 41.71 | 49.67 | 57.23 | 55.37 | 42.70 | 30.26 | 30.14 | 19.65 | 40.25 | |||||||||||||
YRS | 42 | 46 | 46 | 45 | 44 | 45 | 44 | 47 | 45 | 47 | 47 | 44 | 29 |