YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.57 | c | 56.35 | 47.43 | 47.17 | b | 44.10 | a | 33.77 | 47.23 | f | |||
1966 | 36.26 | 36.07 | 37.45 | 43.40 | 44.32 | 50.00 | 52.65 | 52.06 | 49.80 | 42.16 | 40.77 | 39.48 | 43.70 | |||||||||||||
1967 | 39.37 | a | 36.04 | 36.87 | 38.63 | 45.38 | b | 53.70 | 54.26 | 55.65 | 51.45 | a | 46.35 | 40.13 | 36.10 | a | 44.49 | |||||||||
1968 | 33.68 | 40.34 | 41.13 | 39.47 | 46.52 | 51.69 | a | 55.10 | 55.48 | 51.14 | b | 44.87 | a | 41.33 | 34.15 | d | 44.57 | |||||||||
1969 | 26.42 | 35.54 | 37.45 | 42.23 | 47.61 | 56.47 | 53.87 | 52.43 | a | 51.38 | a | 44.70 | a | 41.77 | 38.32 | 44.02 | ||||||||||
1970 | 34.26 | 39.39 | 37.81 | 39.30 | 44.27 | a | 52.70 | 53.97 | 53.35 | 48.83 | 43.58 | 40.96 | b | 34.87 | 43.61 | |||||||||||
1971 | 35.71 | 36.86 | 35.06 | 40.03 | 45.90 | 49.63 | 55.00 | 56.97 | 49.10 | 43.45 | 40.03 | 35.42 | 43.60 | |||||||||||||
1972 | 32.77 | 35.54 | a | 39.93 | a | 38.50 | 47.16 | 51.90 | 56.07 | a | 54.45 | 47.52 | c | 42.00 | 42.17 | a | 30.61 | 43.22 | ||||||||
1973 | 32.32 | 36.71 | 39.71 | 41.37 | 47.80 | a | 52.23 | 54.55 | 51.84 | 51.18 | b | 45.16 | 38.97 | 40.06 | 44.33 | |||||||||||
1974 | 31.61 | 37.36 | 38.06 | 43.17 | 45.71 | 51.90 | 54.35 | 55.52 | 52.77 | 42.73 | a | 41.76 | a | 39.58 | 44.54 | |||||||||||
1975 | 35.68 | 34.64 | 36.72 | b | 37.47 | 45.45 | 51.34 | a | 56.20 | a | 53.81 | 52.87 | 47.55 | 39.33 | 37.71 | 44.06 | ||||||||||
1976 | 37.29 | 36.71 | a | 36.48 | 41.97 | 46.13 | 50.53 | 54.68 | 55.47 | a | 52.60 | 44.48 | 41.47 | 34.94 | 44.40 | |||||||||||
1977 | 31.26 | 37.86 | 37.61 | 41.23 | 44.81 | 52.07 | 53.77 | 57.87 | 50.17 | a | 46.00 | 36.87 | 38.16 | 43.97 | ||||||||||||
1978 | 35.26 | 40.14 | 39.29 | 42.40 | ----- | z | 54.17 | 55.68 | 55.29 | 52.33 | 46.84 | 33.60 | 31.84 | 44.26 | a | |||||||||||
1979 | 23.74 | 34.36 | 40.10 | 42.80 | 46.58 | 51.27 | 55.71 | 55.13 | 52.80 | 48.16 | 38.53 | 38.29 | 43.96 | |||||||||||||
1980 | 29.93 | a | 36.66 | 39.26 | 43.67 | 47.50 | e | 51.56 | e | 55.78 | d | 52.26 | d | 49.08 | d | 43.15 | e | 41.21 | f | 36.38 | e | 44.11 | a | |||
1981 | 40.62 | e | 36.04 | d | 40.74 | d | 41.42 | d | 46.00 | f | 51.38 | d | 54.67 | d | 55.62 | e | 50.36 | e | 44.16 | f | 42.12 | f | 37.50 | e | 45.37 | c |
1982 | 32.88 | f | 36.04 | d | 37.96 | d | 38.88 | f | 44.96 | g | 51.88 | f | 53.67 | g | 54.58 | e | 51.28 | e | 46.64 | f | 38.12 | f | 35.32 | f | 44.97 | h |
1983 | 37.21 | g | 41.14 | f | 43.45 | i | 39.91 | h | 49.41 | n | 50.96 | e | 54.73 | i | 56.20 | f | 47.73 | h | 41.65 | h | 43.70 | g | 30.28 | f | 50.96 | k |
1984 | 34.77 | e | 36.48 | f | 42.92 | g | 41.52 | e | 45.69 | e | 50.31 | d | 54.30 | d | 53.39 | h | 50.48 | g | 44.11 | d | 40.46 | f | 32.15 | e | 43.26 | e |
1985 | 28.58 | g | 32.29 | d | 34.24 | f | 42.00 | f | 45.80 | f | 50.62 | f | 55.88 | e | 52.52 | f | 47.12 | f | 41.68 | f | 29.05 | i | 24.73 | i | 44.09 | j |
1986 | 34.58 | g | 37.50 | n | 42.14 | j | 40.25 | f | 44.45 | k | 53.22 | g | 52.26 | l | 55.67 | j | 48.32 | e | 42.95 | i | 39.96 | d | 33.00 | d | 40.43 | i |
1987 | 32.14 | b | 37.96 | b | 38.89 | c | 42.70 | c | 47.85 | d | 51.00 | b | 54.37 | d | 52.58 | 48.64 | b | 43.21 | c | 42.31 | a | 32.00 | c | 43.64 | ||
1988 | 31.80 | a | 34.76 | d | 36.50 | c | 41.48 | c | 44.93 | b | 48.80 | 51.96 | c | 49.77 | a | 46.61 | b | 47.74 | 41.30 | 36.58 | 42.69 | |||||
1989 | 36.59 | b | 26.85 | a | 37.58 | 43.28 | a | 46.74 | 51.54 | f | 48.12 | e | 43.96 | h | 43.50 | b | 40.36 | c | 42.93 | a | 34.68 | f | 40.66 | c | ||
1990 | 38.79 | c | 35.73 | b | 40.54 | e | 43.89 | b | 46.65 | 52.93 | b | 56.37 | d | 58.39 | h | 53.80 | e | 43.00 | c | 41.04 | b | 27.86 | c | 43.69 | a | |
1991 | 31.50 | i | 41.19 | b | 37.11 | c | 42.28 | a | 45.90 | 48.90 | a | 54.93 | a | 57.22 | d | 50.68 | e | 44.14 | b | 41.11 | c | 37.16 | f | 46.35 | b | |
1992 | 38.31 | b | 42.43 | a | 41.00 | b | 46.33 | c | 48.39 | 53.30 | c | 56.53 | a | 54.71 | j | 49.03 | a | 44.28 | b | 39.27 | 31.54 | c | 44.58 | a | ||
1993 | 29.17 | a | 34.37 | a | 39.64 | c | 44.48 | a | 51.23 | 53.00 | 55.73 | a | 56.76 | b | 50.03 | a | 47.16 | 31.97 | a | 34.43 | c | 44.00 | ||||
1994 | 38.93 | c | 34.39 | 40.60 | a | 44.81 | c | 50.81 | 51.79 | b | 56.93 | b | 55.92 | e | 54.19 | c | 42.38 | b | 36.26 | g | 34.92 | f | 47.07 | b | ||
1995 | 36.93 | c | 39.38 | d | 40.54 | c | 42.62 | a | 49.55 | b | 53.39 | b | 58.45 | b | 54.46 | c | ----- | z | 46.17 | b | 45.25 | f | 37.88 | n | 46.83 | c |
1996 | 33.61 | m | 32.79 | j | 37.26 | l | 42.52 | i | 42.65 | k | 48.37 | k | 53.41 | n | 53.26 | l | 46.56 | n | 45.20 | k | 37.00 | k | 32.88 | n | ----- | z |
1997 | 31.55 | i | 35.33 | m | 37.40 | p | 40.33 | i | 48.90 | j | 51.39 | l | 53.56 | o | 56.06 | n | 50.38 | q | 40.85 | k | 36.24 | m | 34.90 | k | ----- | z |
1998 | 32.59 | n | 36.94 | j | 37.24 | n | 40.90 | j | 45.74 | l | 50.00 | l | 55.37 | l | 55.24 | n | 48.25 | r | 44.33 | m | 42.53 | k | 34.12 | o | ----- | z |
1999 | 36.29 | n | 35.67 | p | 36.14 | q | 37.31 | n | 42.00 | u | 49.94 | l | 53.22 | m | 56.17 | s | ----- | z | 44.13 | 44.70 | 40.65 | 43.16 | i | |||
2000 | 35.55 | 37.57 | a | 37.45 | 43.21 | a | 48.83 | a | 51.63 | 55.19 | 53.68 | 52.23 | 45.81 | 36.31 | a | 35.23 | a | 44.39 | ||||||||
2001 | 35.87 | 34.14 | 38.97 | 40.83 | a | 45.84 | 50.62 | a | 54.81 | 55.48 | 50.70 | 42.77 | 41.24 | a | 37.45 | 44.06 | ||||||||||
2002 | 36.40 | f | 37.81 | b | 36.41 | b | 41.68 | b | 44.06 | 51.27 | 52.87 | 53.33 | a | 48.93 | 43.57 | a | 34.76 | e | 35.61 | h | 44.47 | b | ||||
2003 | 38.17 | b | 34.00 | c | 39.97 | 41.20 | 45.17 | a | 51.00 | 54.13 | 53.71 | 51.60 | 49.06 | 37.83 | a | 33.04 | d | 44.07 | ||||||||
2004 | 28.27 | a | 34.58 | c | 40.47 | a | 43.17 | 48.73 | a | 51.67 | 55.60 | a | 55.90 | a | 49.79 | a | 43.57 | a | 36.60 | ----- | z | 44.39 | a | |||
2005 | 23.05 | i | 31.60 | c | 36.27 | a | 40.41 | a | 47.00 | a | 46.93 | 52.48 | b | 50.03 | a | 41.50 | 44.13 | a | 33.29 | b | 29.83 | a | 41.23 | a | ||
2006 | 35.10 | 30.31 | b | 34.41 | b | 37.86 | a | ----- | z | 47.23 | 50.26 | 48.14 | b | 44.59 | a | 34.84 | 31.21 | a | 24.71 | g | 39.39 | b | ||||
2007 | 23.58 | l | 30.27 | b | 32.04 | c | 33.50 | b | 36.71 | 41.97 | 49.33 | a | 54.03 | a | 49.15 | c | 43.04 | e | 37.56 | c | 34.89 | c | 40.23 | a | ||
2008 | 32.81 | e | 36.21 | a | 35.00 | d | 38.30 | c | 46.87 | a | 48.20 | 52.83 | a | 54.68 | c | 49.56 | c | 43.32 | f | 42.81 | c | 30.61 | c | 42.53 | a | |
2009 | 32.68 | c | 34.92 | c | 36.43 | c | 38.74 | c | 43.66 | b | 52.80 | e | 55.45 | 55.81 | 52.70 | 44.65 | 40.48 | a | 31.55 | 43.32 | ||||||
2010 | 39.32 | 38.46 | 39.94 | 41.40 | 44.17 | a | 49.10 | a | 53.00 | a | 53.10 | a | 53.90 | a | 46.97 | 41.74 | g | 37.03 | a | 45.13 | a | |||||
2011 | 35.13 | 32.82 | 38.45 | 38.23 | 43.45 | 50.53 | 53.19 | 55.16 | 53.10 | 48.13 | 37.70 | 32.71 | 43.22 | |||||||||||||
2012 | 33.55 | 36.76 | ----- | z | ----- | z | 45.03 | 49.90 | 54.90 | 55.68 | 49.63 | 45.94 | 43.14 | a | 37.39 | 45.19 | b | |||||||||
2013 | 32.06 | 36.07 | 37.87 | 41.40 | 47.16 | 51.93 | 54.23 | 57.06 | 54.87 | 41.71 | ----- | z | 30.29 | 44.06 | a | |||||||||||
2014 | 35.45 | 33.75 | 38.10 | 42.17 | 49.55 | 51.27 | 56.94 | 57.03 | 54.00 | 50.10 | 40.33 | 38.23 | 45.58 | |||||||||||||
2015 | 37.94 | 41.29 | 40.65 | 39.80 | 48.19 | 54.30 | 57.58 | 56.03 | 48.43 | 49.71 | 39.93 | 37.93 | a | 45.98 | ||||||||||||
2016 | 37.48 | 43.07 | 42.23 | 46.17 | 50.63 | a | 54.13 | 56.71 | c | 55.26 | 49.37 | 49.40 | a | 47.67 | 33.10 | 47.10 | ||||||||||
2017 | 28.61 | 34.93 | 41.16 | 42.77 | 48.10 | 53.43 | 54.65 | 56.81 | 54.57 | 43.45 | 41.13 | 35.03 | 44.55 | |||||||||||||
2018 | 39.39 | 34.64 | 36.58 | 42.30 | 49.61 | 51.17 | 56.42 | 55.87 | 47.70 | 45.94 | 41.30 | 37.13 | 44.84 | |||||||||||||
2019 | 37.52 | 30.93 | 35.55 | 43.27 | 48.68 | 52.23 | 56.50 | a | 57.65 | 54.13 | 41.94 | 39.27 | 37.29 | 44.58 | ||||||||||||
2020 | 39.50 | a | 34.93 | 35.30 | a | 40.40 | 48.16 | 52.13 | 55.03 | 54.06 | 53.73 | 45.37 | a | 39.37 | 37.42 | 44.62 | ||||||||||
2021 | 38.03 | a | 34.50 | 35.71 | 37.53 | 46.03 | 55.27 | 56.35 | 55.84 | 49.67 | 44.90 | 42.56 | c | 34.90 | a | 44.27 | ||||||||||
2022 | 34.03 | 33.96 | 39.58 | 37.90 | a | 44.68 | 52.57 | 56.97 | 58.13 | 52.13 | 47.55 | 35.83 | 33.78 | d | 43.93 | |||||||||||
2023 | 37.45 | 32.86 | 35.97 | 40.73 | 49.23 | a | 50.90 | 56.03 | 57.77 | 51.90 | 48.19 | 40.27 | 40.32 | 45.14 | ||||||||||||
2024 | 32.81 | 36.38 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.59 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.69 | 35.82 | 38.13 | 41.29 | 46.65 | 51.38 | 54.73 | 54.81 | 50.49 | 44.92 | 39.72 | 35.23 | 44.27 | |||||||||||||
S.D. | 3.72 | 3.11 | 2.16 | 2.44 | 2.46 | 2.31 | 1.95 | 2.15 | 2.80 | 2.73 | 3.29 | 3.11 | 0.86 | |||||||||||||
SKEW | -0.75 | -0.05 | -0.34 | -0.55 | -1.12 | -1.30 | -1.19 | -0.97 | -0.88 | -0.69 | -0.61 | -0.26 | 1.21 | |||||||||||||
MAX | 40.62 | 43.07 | 42.23 | 46.33 | 51.23 | 56.47 | 58.45 | 58.13 | 54.87 | 50.10 | 47.67 | 40.65 | 47.10 | |||||||||||||
MIN | 23.74 | 26.85 | 32.04 | 33.50 | 36.71 | 41.97 | 48.12 | 48.14 | 41.50 | 34.84 | 31.21 | 27.86 | 42.69 | |||||||||||||
YRS | 47 | 52 | 49 | 49 | 47 | 50 | 52 | 48 | 51 | 50 | 46 | 46 | 31 |