YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1953 | ----- | z | ----- | z | ----- | z | 49.23 | 56.31 | 67.88 | f | 70.83 | e | 64.77 | i | 60.04 | g | 49.53 | 38.91 | a | 25.24 | b | 48.34 | f | |||
1954 | 29.09 | d | 37.93 | f | 39.02 | 52.20 | 58.34 | 67.10 | a | 74.23 | 70.06 | 64.90 | 55.03 | a | 40.72 | 30.98 | 52.88 | a | ||||||||
1955 | 26.95 | a | 29.41 | 40.81 | 48.25 | 56.87 | 64.52 | 70.75 | a | 70.69 | 63.63 | 52.26 | 38.05 | 32.02 | 49.52 | |||||||||||
1956 | 33.00 | 28.60 | 41.35 | 47.65 | 58.71 | g | ----- | z | 69.00 | x | ----- | z | 62.95 | j | 52.95 | a | 35.22 | 30.33 | b | 38.44 | e | |||||
1957 | 33.35 | 41.36 | 42.65 | 48.52 | a | 54.00 | b | 66.39 | b | 70.25 | c | 67.27 | 60.65 | 50.32 | a | 34.71 | a | 32.43 | a | 50.16 | ||||||
1958 | 27.65 | 36.83 | b | 37.55 | 47.31 | a | 59.32 | a | 67.27 | d | 70.74 | 70.96 | d | 63.42 | 52.95 | 40.72 | 35.45 | 50.85 | ||||||||
1959 | 31.21 | 34.96 | 40.62 | a | 51.35 | 58.63 | 69.72 | 71.87 | a | 69.50 | 60.20 | 50.23 | 38.05 | 33.05 | 50.78 | |||||||||||
1960 | 24.31 | 30.72 | 41.69 | 51.33 | 56.63 | 66.87 | 71.02 | 71.56 | 64.83 | 51.35 | a | 41.27 | 29.05 | 50.05 | ||||||||||||
1961 | 29.52 | 36.64 | 43.19 | 50.02 | 60.48 | 69.63 | 72.03 | 70.29 | 59.92 | 50.61 | 38.98 | 27.08 | a | 50.70 | ||||||||||||
1962 | 26.18 | 37.73 | 36.11 | 53.08 | 57.53 | 65.92 | 71.11 | 69.77 | 63.23 | 53.48 | 41.87 | 35.26 | 50.94 | |||||||||||||
1963 | 24.18 | 36.25 | 41.66 | 50.19 | a | 60.90 | 65.78 | 74.11 | 70.45 | 65.40 | 55.32 | 42.12 | 31.47 | 51.49 | ||||||||||||
1964 | 27.00 | 28.18 | a | 38.11 | 47.67 | 59.68 | 66.52 | 74.16 | 69.87 | 64.20 | 52.45 | 40.02 | a | 31.03 | 49.91 | |||||||||||
1965 | 32.90 | 33.82 | 39.32 | 50.71 | a | 57.40 | 64.97 | 73.08 | 69.56 | 60.86 | a | 52.24 | 43.47 | 34.16 | 51.04 | |||||||||||
1966 | 28.87 | 32.95 | 43.58 | 52.03 | 60.16 | 66.57 | a | 74.32 | 68.72 | b | 59.31 | a | 49.89 | 42.67 | 32.98 | 51.00 | ||||||||||
1967 | 30.50 | 37.48 | 46.76 | 52.07 | b | 58.74 | 66.35 | 74.35 | 68.85 | 62.62 | 52.81 | 41.67 | 27.44 | 51.64 | ||||||||||||
1968 | 31.23 | 38.57 | 42.37 | 46.75 | 57.32 | a | 68.35 | 71.35 | 67.35 | 61.12 | 52.82 | 38.34 | a | 27.27 | 50.24 | |||||||||||
1969 | 34.71 | 35.21 | 37.73 | 52.60 | 59.65 | 65.41 | b | 74.03 | 73.10 | 63.75 | 50.52 | 38.82 | 33.37 | 51.57 | ||||||||||||
1970 | 29.15 | 38.27 | 38.85 | a | 47.50 | 59.73 | 65.77 | 72.44 | 72.94 | 62.11 | c | 47.67 | e | 39.07 | a | 32.84 | 50.53 | |||||||||
1971 | 27.53 | 35.39 | a | 42.97 | 48.78 | 57.76 | ----- | z | 72.47 | 69.11 | 59.47 | 51.37 | 39.23 | 26.83 | a | 48.27 | a | |||||||||
1972 | 30.77 | 37.81 | 46.66 | 51.97 | 58.21 | 66.23 | 70.95 | 69.23 | 62.43 | 53.68 | 36.30 | 31.92 | 51.35 | |||||||||||||
1973 | 29.73 | 35.18 | 40.34 | 44.68 | 57.19 | 66.05 | 71.97 | 71.02 | 62.20 | 53.19 | 42.03 | a | 32.39 | 50.50 | ||||||||||||
1974 | 28.07 | a | 31.79 | 48.29 | 49.62 | 61.58 | 70.28 | 71.73 | 67.00 | a | 60.87 | 54.02 | 40.48 | 27.40 | 50.93 | |||||||||||
1975 | 24.63 | 34.52 | a | 42.68 | a | 45.70 | 55.16 | 65.18 | 71.79 | 70.45 | 61.93 | 51.55 | 39.41 | a | 33.35 | 49.70 | ||||||||||
1976 | 29.26 | 39.62 | 43.23 | 50.33 | a | 58.34 | 66.25 | 71.92 | 69.42 | a | 62.38 | 48.68 | 37.67 | 24.15 | 50.10 | |||||||||||
1977 | 26.13 | 35.70 | a | 38.71 | 52.75 | 59.02 | 69.78 | a | 72.81 | 72.42 | 65.57 | a | 54.26 | 43.25 | 35.53 | 52.16 | ||||||||||
1978 | 33.65 | 35.61 | 44.65 | a | 52.47 | 57.15 | 68.62 | a | 73.40 | b | 69.03 | a | 64.08 | 54.52 | 43.22 | 30.77 | 52.26 | |||||||||
1979 | 28.19 | 33.95 | 43.34 | 50.11 | b | 57.50 | 66.62 | b | 71.47 | 69.19 | 64.35 | 54.45 | 35.14 | a | 33.92 | 50.69 | ||||||||||
1980 | 36.29 | b | 39.12 | 40.08 | 47.63 | 57.05 | 68.98 | a | 75.52 | a | ----- | z | 63.86 | a | 50.31 | b | 39.98 | d | 38.92 | 50.70 | a | |||||
1981 | 33.47 | a | 36.04 | 40.68 | 55.28 | 57.77 | 69.57 | g | 73.91 | i | 70.45 | i | 64.45 | h | 52.72 | f | 42.54 | d | 37.61 | d | 43.34 | e | ||||
1982 | 34.21 | e | 35.36 | c | 44.35 | g | 51.10 | a | 56.90 | e | 66.36 | b | 74.04 | g | 72.96 | e | 64.34 | k | 50.40 | g | 39.81 | i | 33.27 | t | 52.82 | f |
1983 | 33.02 | k | 38.47 | i | 42.81 | j | 44.79 | i | 55.89 | i | 65.45 | j | 72.67 | m | 73.37 | 65.75 | l | 52.96 | h | 40.09 | b | 32.85 | h | 56.73 | j | |
1984 | 28.66 | b | 35.91 | 40.50 | d | 48.03 | a | 62.70 | c | 66.44 | l | 72.81 | d | 70.90 | 64.83 | a | 47.92 | 40.02 | 29.11 | 49.22 | a | |||||
1985 | 30.42 | a | 34.02 | 44.53 | 52.27 | 60.05 | 68.22 | 74.33 | a | 72.11 | 61.68 | 52.68 | 41.68 | 33.34 | 52.11 | |||||||||||
1986 | 38.74 | 41.69 | a | 48.35 | 52.80 | 59.24 | 66.97 | 70.31 | 71.50 | b | 59.63 | 49.90 | 40.36 | a | 35.65 | e | 52.93 | |||||||||
1987 | 28.38 | a | 36.88 | 41.67 | b | 52.03 | 58.40 | 68.92 | 71.87 | 69.55 | 62.43 | g | 54.84 | 40.80 | 31.18 | c | 50.41 | a | ||||||||
1988 | 26.78 | d | 38.53 | 42.16 | 51.82 | 58.82 | a | 69.12 | 73.13 | 71.44 | 62.12 | 54.73 | 38.77 | b | 30.58 | 51.50 | ||||||||||
1989 | 28.82 | 35.98 | 47.66 | 55.98 | 62.34 | 69.77 | 73.74 | 71.63 | 65.35 | 52.88 | a | 41.15 | 30.90 | 53.02 | ||||||||||||
1990 | 29.60 | 34.91 | a | 45.48 | 52.91 | a | 58.76 | 69.40 | 69.95 | 67.87 | 64.93 | 52.42 | 41.57 | 26.59 | h | 53.44 | a | |||||||||
1991 | 30.15 | 37.57 | 40.83 | a | 49.00 | 59.32 | 67.78 | 71.40 | a | 69.97 | 62.90 | 53.65 | 38.85 | c | 30.64 | c | 51.01 | |||||||||
1992 | 28.44 | e | 37.16 | 43.76 | 52.77 | 59.08 | 65.70 | 69.93 | a | 63.70 | a | 61.89 | c | 52.89 | c | 36.10 | d | 23.05 | k | 51.95 | a | |||||
1993 | 32.84 | f | 35.92 | h | 42.05 | b | 49.46 | b | ----- | z | 65.80 | e | 71.67 | b | 69.27 | i | 60.18 | e | 49.82 | f | 36.52 | c | 32.42 | e | 51.16 | e |
1994 | 32.42 | g | 34.02 | f | 44.27 | e | 48.90 | i | 56.00 | n | 70.30 | c | 71.61 | i | 72.10 | e | 63.04 | e | 49.90 | e | 39.86 | w | ----- | z | 59.92 | g |
1995 | 36.93 | x | 42.67 | j | 44.00 | g | 47.24 | i | 56.05 | c | 64.76 | k | 71.03 | o | 73.21 | n | 64.61 | p | 50.36 | j | 43.34 | n | 38.79 | s | 56.05 | k |
1996 | 30.50 | n | 39.63 | j | 41.24 | f | 52.63 | c | 63.58 | a | 69.48 | a | 71.90 | g | 71.06 | g | 58.50 | e | 49.79 | j | 42.36 | e | 30.03 | p | 57.31 | g |
1997 | 28.68 | k | 37.29 | b | 44.76 | b | 47.12 | b | 58.83 | a | 65.32 | b | 69.87 | e | 70.18 | f | 65.27 | f | 51.50 | h | 37.44 | f | 32.11 | l | 53.87 | f |
1998 | 31.59 | i | 34.77 | h | 40.83 | b | 47.26 | c | 59.10 | b | 65.73 | 73.02 | 71.05 | b | 66.68 | h | 52.74 | f | 41.76 | a | 35.58 | m | 56.96 | e | ||
1999 | 34.87 | h | 38.98 | b | 45.20 | d | 48.03 | l | 55.66 | f | 65.17 | a | 72.21 | c | 68.48 | c | 61.34 | e | 52.65 | d | 43.37 | d | 29.00 | p | 55.93 | d |
2000 | 33.55 | j | 41.76 | l | 44.43 | j | 54.68 | m | 63.31 | j | 70.41 | h | 74.18 | l | 73.37 | h | 64.84 | k | 52.43 | i | 34.26 | k | 32.77 | r | ----- | z |
2001 | 28.89 | l | 34.89 | i | 42.74 | d | 50.16 | e | 60.91 | c | 68.02 | e | 72.81 | e | 69.23 | e | 63.83 | d | 51.29 | c | 42.94 | e | 29.89 | i | 57.99 | c |
2002 | 30.36 | c | 31.24 | c | 41.56 | e | 54.15 | c | 59.71 | b | 69.03 | k | 72.85 | 69.82 | c | 62.91 | g | 50.33 | d | 37.95 | j | 30.65 | d | 48.96 | c | |
2003 | 35.92 | e | 35.52 | f | 42.12 | c | 50.25 | 59.29 | b | 65.93 | 75.22 | b | 71.22 | d | 62.56 | c | 53.90 | g | 39.22 | e | 31.55 | c | 53.33 | b | ||
2004 | 32.29 | b | 32.27 | e | 47.88 | b | 49.68 | b | 59.34 | c | 65.68 | b | 69.66 | b | 68.08 | a | 60.90 | a | 49.71 | b | 39.27 | 30.65 | a | 50.45 | ||
2005 | 36.60 | e | 37.44 | b | 40.48 | b | 49.59 | a | 58.96 | d | 66.36 | a | 73.45 | 69.20 | a | 62.56 | d | 51.50 | b | 39.68 | 26.50 | j | 53.26 | a | ||
2006 | 32.16 | b | 35.29 | 43.59 | b | 53.02 | a | 61.18 | 69.32 | 72.12 | a | 68.94 | e | 58.20 | 50.08 | 40.54 | b | 29.26 | b | 51.14 | ||||||
2007 | 26.92 | a | 35.16 | 44.65 | 50.07 | c | 58.17 | a | 66.74 | a | 73.44 | 72.62 | c | 63.85 | g | 50.50 | b | 39.71 | d | 30.41 | b | 49.85 | a | |||
2008 | 26.61 | c | 35.80 | a | 39.69 | d | 47.83 | d | 58.07 | i | 66.14 | b | 71.44 | 70.38 | c | 61.14 | a | 50.61 | c | 38.95 | 31.62 | a | 49.11 | a | ||
2009 | 32.88 | a | 36.70 | 42.32 | a | 48.27 | 60.26 | d | 65.00 | f | 71.89 | c | 68.80 | a | 60.70 | b | 48.10 | a | 40.20 | 24.75 | a | 48.62 | a | |||
2010 | 28.98 | b | 33.65 | a | 40.45 | a | 49.28 | a | 56.85 | 68.38 | b | 71.94 | f | 69.77 | a | 64.40 | e | 51.65 | 36.40 | 34.11 | 48.54 | a | ||||
2011 | 27.55 | b | 30.62 | 43.86 | b | 50.90 | a | 55.33 | e | 68.29 | b | 73.33 | e | 72.24 | 62.23 | b | 50.36 | f | 38.33 | g | 26.86 | c | 51.12 | b | ||
2012 | 32.94 | 33.87 | b | 44.02 | b | 53.36 | b | 59.76 | b | 70.43 | 72.82 | a | 71.90 | 62.89 | b | 51.03 | 38.84 | a | 27.86 | b | 51.64 | |||||
2013 | 24.85 | a | 32.85 | a | 42.84 | 49.92 | 58.08 | 69.57 | 72.15 | 70.58 | 63.84 | a | 47.68 | 37.87 | 29.82 | a | 50.00 | |||||||||
2014 | 30.38 | a | 36.68 | 42.85 | 48.18 | 57.27 | 68.77 | 72.30 | a | 68.19 | 65.23 | 51.82 | 38.32 | b | 32.18 | 51.02 | ||||||||||
2015 | 31.72 | a | 35.70 | 44.71 | 49.50 | 55.24 | 68.83 | 70.63 | 69.68 | 64.67 | 54.20 | a | 38.47 | 30.35 | 51.14 | |||||||||||
2016 | 29.48 | a | 37.17 | 43.33 | b | 49.38 | 55.85 | 70.00 | 73.31 | 67.31 | 61.63 | 52.06 | 41.10 | 31.27 | 50.99 | |||||||||||
2017 | 33.34 | 39.96 | 46.02 | 50.18 | 57.29 | 69.52 | 73.84 | 69.10 | 63.35 | 49.82 | 42.63 | 31.44 | 52.21 | |||||||||||||
2018 | 29.89 | 36.34 | 41.73 | 52.93 | 60.85 | 69.72 | 73.95 | 71.31 | 63.88 | 50.77 | 35.45 | 29.56 | 51.37 | |||||||||||||
2019 | 28.08 | 32.57 | 43.81 | 50.22 | 53.80 | a | 65.82 | 72.87 | 71.35 | 64.28 | 46.19 | 37.22 | 31.55 | 49.81 | ||||||||||||
2020 | 29.52 | 34.21 | 44.35 | 50.10 | a | 61.48 | a | 68.42 | 73.13 | a | 72.05 | 60.68 | 49.95 | 41.13 | ----- | z | 53.18 | a | ||||||||
2021 | 30.36 | c | 33.78 | a | 40.10 | 49.83 | a | 59.45 | b | 71.48 | h | 75.50 | h | 73.12 | s | 67.27 | q | 49.02 | a | 41.52 | 34.15 | 42.27 | d | |||
2022 | 30.95 | 30.77 | 41.10 | 52.37 | c | 61.18 | 69.37 | 74.52 | 70.90 | a | 64.85 | 49.68 | 35.19 | a | 30.62 | e | 50.96 | |||||||||
2023 | 30.85 | 33.57 | 39.74 | 48.45 | 59.95 | 64.93 | 75.62 | b | 72.71 | b | 63.12 | 52.10 | a | 39.22 | 33.03 | 51.11 | ||||||||||
2024 | 30.97 | 37.10 | 41.88 | b | 47.41 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.65 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.09 | 35.39 | 42.44 | 50.31 | 58.62 | 67.49 | 72.46 | 70.16 | 62.56 | 51.52 | 39.71 | 31.22 | 51.01 | |||||||||||||
S.D. | 3.11 | 2.88 | 2.64 | 2.28 | 2.00 | 1.73 | 1.46 | 1.80 | 1.87 | 2.07 | 2.27 | 2.99 | 0.83 | |||||||||||||
SKEW | 0.40 | -0.37 | 0.16 | 0.04 | -0.07 | 0.13 | 0.07 | -0.64 | -0.35 | -0.22 | -0.38 | -0.10 | 0.44 | |||||||||||||
MAX | 38.74 | 41.69 | 48.35 | 55.98 | 63.58 | 70.43 | 75.62 | 73.37 | 65.57 | 55.32 | 43.47 | 38.92 | 53.02 | |||||||||||||
MIN | 24.18 | 28.18 | 36.11 | 44.68 | 53.80 | 64.52 | 69.66 | 63.70 | 58.20 | 46.19 | 34.71 | 24.15 | 49.52 | |||||||||||||
YRS | 61 | 61 | 66 | 66 | 64 | 60 | 61 | 61 | 58 | 60 | 64 | 57 | 40 |