YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 50.77 | 56.70 | 65.02 | 65.95 | 57.72 | 42.80 | a | 36.02 | i | 32.64 | j | 56.49 | f | |||||
1970 | 24.72 | o | 35.72 | l | 30.77 | 35.92 | 50.16 | 57.25 | b | 64.95 | 64.34 | 54.17 | a | 42.02 | 38.18 | 31.56 | m | 48.64 | c | |||||||
1971 | 31.07 | d | 28.32 | h | 35.84 | 40.38 | a | 44.78 | a | 56.82 | 65.87 | 61.94 | 55.53 | 41.35 | 34.85 | 25.88 | a | 44.94 | a | |||||||
1972 | 31.02 | b | 33.00 | g | 43.05 | a | 43.02 | 48.38 | a | 58.41 | a | 65.42 | 60.90 | 55.57 | a | 45.39 | 29.95 | 24.60 | 45.97 | a | ||||||
1973 | 22.40 | a | 27.20 | a | 26.11 | c | 35.08 | f | 49.35 | g | 59.88 | d | 63.95 | 62.69 | 56.25 | 48.13 | 37.28 | g | 28.73 | p | 45.83 | d | ||||
1974 | 26.37 | 27.81 | j | 36.98 | a | 40.84 | a | 51.47 | b | 64.05 | 63.25 | a | 61.30 | c | 56.52 | 46.29 | b | 36.69 | c | 29.20 | k | 48.38 | b | |||
1975 | 28.78 | d | 26.15 | d | 30.50 | c | 33.39 | k | 45.65 | a | 56.25 | 63.37 | 62.03 | 57.40 | a | 47.02 | 38.81 | d | ----- | z | 45.59 | b | ||||
1976 | 28.09 | n | 31.68 | d | 31.95 | i | 38.86 | h | 49.95 | ----- | z | 63.95 | a | 60.72 | a | 54.62 | 45.06 | 36.94 | f | 30.83 | p | 51.00 | f | |||
1977 | 23.67 | h | 32.22 | c | 31.63 | p | 43.79 | d | 43.07 | a | 57.77 | 64.08 | 62.31 | 56.33 | 47.45 | b | 36.50 | n | 32.68 | n | 50.88 | d | ||||
1978 | 27.19 | e | 27.52 | d | 37.50 | b | 40.81 | c | 47.98 | 59.48 | 64.63 | 61.88 | c | 55.40 | ----- | z | 33.38 | a | 21.98 | k | 45.58 | b | ||||
1979 | 22.40 | j | 25.19 | j | 32.69 | j | 37.85 | m | 47.06 | d | 56.48 | a | 64.29 | 60.21 | 59.41 | a | 48.18 | a | 32.10 | a | 34.82 | l | 52.53 | e | ||
1980 | 29.06 | n | 31.35 | e | 31.62 | o | 37.79 | k | 44.52 | b | 58.68 | 65.21 | 62.45 | b | 56.09 | a | ----- | z | 37.46 | c | 35.73 | a | 48.94 | d | ||
1981 | 32.43 | a | 31.96 | 31.23 | c | 44.03 | a | 48.23 | a | 62.31 | a | 65.05 | a | 61.83 | a | 55.73 | 43.60 | a | 39.46 | e | 32.34 | l | 46.90 | a | ||
1982 | 27.86 | m | 28.15 | d | 32.74 | f | 40.79 | m | 47.25 | a | 55.22 | 61.31 | b | 62.76 | 55.89 | c | 43.18 | a | 34.23 | d | 24.32 | l | 48.50 | d | ||
1983 | 30.56 | n | 27.75 | n | 33.08 | m | 31.67 | o | 47.69 | d | 55.60 | a | 64.14 | b | 61.42 | a | 58.33 | a | 45.09 | c | 35.65 | g | 27.71 | j | 55.38 | f |
1984 | 27.18 | l | 31.47 | m | 34.44 | o | 38.28 | c | 53.30 | a | 55.74 | a | 62.53 | a | 59.68 | a | 56.43 | 39.23 | c | 32.59 | c | 25.12 | g | 49.72 | d | |
1985 | 24.74 | n | 25.58 | o | 31.32 | n | 43.56 | m | 48.67 | b | 60.59 | a | 64.63 | a | 61.78 | a | 51.95 | a | 45.21 | c | 31.34 | b | 27.71 | n | 52.03 | e |
1986 | 34.12 | n | 30.60 | m | 34.57 | p | 42.25 | n | 49.44 | 58.72 | c | 60.40 | a | 61.82 | c | 51.64 | a | 42.39 | h | 35.52 | e | 28.25 | q | 52.92 | f | |
1987 | 26.05 | t | 29.77 | q | 28.91 | n | 43.03 | m | 46.95 | c | 58.35 | g | 60.12 | e | 59.68 | a | 54.92 | e | 49.25 | c | 35.22 | g | 27.56 | m | 54.18 | g |
1988 | 28.38 | o | 30.95 | i | 35.14 | m | 41.94 | m | 49.38 | f | 59.26 | e | 63.82 | f | 60.33 | h | 52.04 | f | 51.26 | f | 35.45 | j | 27.33 | s | 59.26 | k |
1989 | 24.31 | r | 30.00 | p | 40.91 | o | 47.07 | o | 51.47 | p | 57.45 | a | 65.25 | g | 59.69 | e | 56.12 | e | 45.31 | m | 34.32 | p | 29.78 | o | 57.75 | i |
1990 | 27.04 | s | ----- | z | 37.58 | s | 41.66 | n | 46.69 | m | 61.42 | k | 63.54 | q | 59.80 | i | 56.04 | c | 47.54 | h | 36.50 | o | 25.81 | r | 56.04 | k |
1991 | 24.43 | p | 51.41 | e | 28.44 | g | 37.45 | b | 45.92 | f | 52.76 | c | 62.57 | d | 61.91 | d | 55.56 | c | 48.32 | f | 32.72 | n | 24.38 | j | 53.61 | f |
1992 | 21.33 | j | 26.47 | j | 32.23 | i | 42.52 | h | 47.89 | m | 53.71 | d | 59.94 | d | 60.00 | f | 54.85 | d | 47.39 | d | 30.34 | n | 23.88 | f | 53.97 | h |
1993 | 27.46 | e | 45.54 | a | 34.70 | d | 42.72 | c | 49.98 | b | 56.89 | b | 62.71 | c | 61.33 | g | 54.79 | a | 44.75 | a | 31.71 | a | 28.02 | e | 43.57 | a |
1994 | 30.05 | a | 25.14 | g | 35.45 | a | 41.97 | a | 48.47 | 63.32 | b | 64.98 | a | 66.70 | d | 57.38 | e | 44.58 | e | 33.42 | d | 31.94 | e | 47.11 | a | |
1995 | 27.67 | b | 35.90 | b | 37.09 | c | 39.14 | b | 44.54 | e | 54.33 | a | 63.90 | b | 65.42 | e | 58.17 | d | 49.34 | i | 42.54 | b | 32.02 | g | 46.87 | b |
1996 | 31.48 | 35.69 | 37.80 | d | 44.64 | b | 53.74 | l | 60.65 | t | ----- | z | 64.10 | e | 54.96 | b | 44.95 | c | 37.77 | d | ----- | z | 43.92 | d | ||
1997 | 28.25 | c | 29.65 | b | 39.82 | c | 40.00 | f | 54.10 | a | 57.04 | f | 64.48 | b | 63.68 | 59.08 | 45.65 | d | 37.57 | h | 25.77 | e | 45.61 | c | ||
1998 | 29.83 | g | 25.94 | b | 32.31 | d | 35.03 | a | 47.10 | 53.84 | e | 66.12 | j | 65.02 | a | 57.13 | d | 45.35 | d | 36.90 | j | 26.53 | o | 45.22 | d | |
1999 | 31.88 | e | 34.04 | a | 38.19 | b | 35.09 | h | 48.73 | a | 56.64 | e | 63.10 | g | 61.22 | o | 55.29 | m | 48.26 | n | 41.25 | l | 28.29 | l | 41.90 | g |
2000 | 31.94 | n | 32.58 | j | 31.58 | m | 46.47 | k | 53.90 | k | 62.08 | d | 64.34 | f | 63.85 | a | 60.44 | d | 46.34 | c | 30.32 | k | 33.18 | l | 58.18 | h |
2001 | 29.29 | l | 31.18 | k | 37.48 | i | 44.42 | f | 56.11 | d | 61.95 | 64.81 | 63.36 | b | 59.92 | 49.25 | k | 38.79 | k | 25.21 | q | 61.23 | g | |||
2002 | 27.09 | n | 31.93 | m | 33.67 | p | 43.75 | j | 45.96 | f | 58.56 | l | 64.54 | f | 60.81 | e | 55.06 | f | 41.30 | h | 34.25 | f | 26.37 | h | 60.81 | k |
2003 | 35.08 | m | 27.24 | k | 31.33 | j | 35.86 | i | 49.61 | i | 56.71 | d | 65.59 | b | 60.61 | 55.22 | 49.50 | 33.10 | 29.03 | b | 49.97 | e | ||||
2004 | 26.62 | j | 24.73 | n | 38.07 | j | 45.17 | r | 52.24 | n | 59.57 | p | 64.57 | q | 61.83 | j | 58.31 | q | 45.34 | l | 33.97 | m | 30.53 | o | ----- | z |
2005 | 32.03 | m | 32.00 | l | 33.65 | n | 42.45 | i | 51.98 | i | 57.09 | g | 66.10 | j | 60.15 | h | 57.00 | g | 48.16 | l | 40.55 | j | 33.08 | m | ----- | z |
2006 | 30.33 | m | 34.56 | k | 31.50 | i | 43.17 | f | 53.94 | 61.59 | g | 66.00 | 60.71 | c | 53.53 | a | 45.00 | 39.03 | a | 29.82 | a | 49.72 | e | |||
2007 | 24.92 | a | 29.96 | b | 41.73 | i | 42.98 | 52.45 | a | 60.60 | a | 65.92 | 63.52 | f | 56.45 | b | 46.80 | a | 41.91 | a | 26.31 | b | 44.83 | b | ||
2008 | 22.05 | l | 28.69 | m | 35.95 | 42.86 | b | 47.66 | b | 60.37 | 65.08 | 63.53 | 56.25 | 47.08 | r | 39.20 | j | 29.81 | d | 50.19 | d | |||||
2009 | 32.11 | 31.12 | 38.09 | d | 40.86 | h | 54.44 | e | 61.00 | q | 66.47 | 62.58 | 56.80 | 43.39 | 42.50 | k | 24.32 | a | 45.48 | c | ||||||
2010 | 28.05 | a | 27.98 | 32.72 | a | 39.80 | 46.95 | 59.00 | 65.47 | 62.02 | 58.36 | a | 47.06 | 38.29 | i | 34.02 | b | 45.58 | a | |||||||
2011 | 27.63 | a | 27.48 | d | 38.15 | 45.00 | p | 46.82 | 58.10 | 64.50 | 65.74 | 57.98 | 46.74 | 35.33 | 26.12 | a | 44.96 | a | ||||||||
2012 | 32.44 | 30.03 | 36.10 | 44.95 | 52.19 | 61.85 | 64.10 | 63.94 | 56.47 | 48.34 | c | 39.03 | 29.05 | b | 46.54 | |||||||||||
2013 | 23.66 | 26.16 | 38.89 | 43.53 | 48.60 | 62.06 | c | 64.48 | 61.56 | 55.13 | 42.98 | 37.05 | 27.60 | 44.31 | ||||||||||||
2014 | 33.61 | 35.00 | 38.48 | 42.12 | 49.84 | 60.23 | 65.24 | 60.06 | 57.38 | 49.74 | 38.08 | 31.00 | 46.73 | |||||||||||||
2015 | 32.68 | 37.75 | 40.69 | 42.32 | 46.13 | 61.12 | 61.79 | 63.03 | 58.32 | 48.73 | a | 33.65 | 28.08 | 46.19 | ||||||||||||
2016 | 27.76 | 35.71 | 37.93 | i | 42.30 | g | 48.12 | a | 62.98 | a | 65.03 | 59.12 | j | 56.03 | 51.26 | 37.85 | 31.95 | a | 46.30 | c | ||||||
2017 | 28.50 | d | 35.00 | 40.48 | 45.15 | 50.33 | a | 63.95 | 65.08 | 61.92 | e | 55.75 | 50.47 | 44.47 | 35.39 | 48.04 | ||||||||||
2018 | 33.58 | e | 27.62 | h | 37.84 | 47.37 | 51.98 | 62.78 | 66.45 | 63.71 | 59.03 | n | 43.04 | f | 35.35 | q | 31.41 | n | 51.96 | e | ||||||
2019 | 31.66 | b | 27.72 | e | 36.50 | 44.93 | 44.65 | 58.48 | 65.60 | 65.81 | g | 57.60 | 45.15 | 38.52 | 29.45 | 43.66 | a | |||||||||
2020 | 31.21 | 32.84 | 36.59 | b | 44.65 | 54.18 | t | 60.00 | c | 66.04 | g | 67.37 | 59.09 | h | 51.06 | 39.28 | ----- | z | 45.38 | d | ||||||
2021 | 31.55 | 31.60 | c | 36.75 | w | 45.57 | 49.80 | h | 64.79 | d | 63.65 | r | 65.95 | u | ----- | z | ----- | z | 39.62 | q | ----- | z | 43.38 | h | ||
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.81 | a | 44.92 | 31.83 | 29.04 | d | 41.15 | h | ||
2023 | 25.10 | 25.23 | 30.87 | 41.87 | 49.21 | 54.78 | a | 66.92 | y | 63.74 | 56.33 | 51.06 | v | 39.41 | b | 32.59 | b | 41.91 | b | |||||||
2024 | 27.84 | 31.24 | 33.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.89 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.25 | 31.97 | 35.94 | 42.08 | 48.94 | 58.86 | 64.20 | 62.58 | 56.40 | 46.04 | 36.41 | 29.34 | 46.36 | |||||||||||||
S.D. | 3.01 | 5.69 | 3.70 | 3.00 | 3.03 | 3.09 | 1.64 | 1.90 | 1.81 | 2.72 | 3.58 | 3.28 | 1.34 | |||||||||||||
SKEW | -0.45 | 1.68 | -0.62 | -0.68 | 0.36 | 0.03 | -1.15 | 0.59 | -0.18 | -0.10 | 0.16 | 0.37 | -0.45 | |||||||||||||
MAX | 33.61 | 51.41 | 43.05 | 47.37 | 56.11 | 64.79 | 66.47 | 67.37 | 60.44 | 51.26 | 44.47 | 35.73 | 48.04 | |||||||||||||
MIN | 22.40 | 25.23 | 26.11 | 35.03 | 43.07 | 52.76 | 59.94 | 59.68 | 51.64 | 39.23 | 29.95 | 24.32 | 44.31 | |||||||||||||
YRS | 29 | 30 | 29 | 27 | 40 | 44 | 41 | 43 | 47 | 38 | 31 | 22 | 5 |