YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | 43.52 | c | 46.42 | 48.50 | 46.03 | 47.83 | 52.42 | 54.06 | 53.07 | 52.00 | 47.07 | 43.61 | 48.59 | a | ||||||||||
1960 | 40.77 | 43.17 | 45.55 | 44.57 | 46.29 | 52.43 | 51.77 | 50.61 | 50.63 | 47.39 | 45.00 | 43.16 | 46.78 | |||||||||||||
1961 | 43.39 | 45.04 | 43.42 | 45.23 | 46.10 | 50.70 | 52.45 | 54.26 | 51.77 | 50.16 | 44.10 | 43.77 | 47.53 | |||||||||||||
1962 | 42.29 | 44.68 | 42.97 | 46.03 | 45.52 | 49.00 | 51.29 | 51.94 | 51.43 | 49.55 | 47.20 | 44.45 | 47.20 | |||||||||||||
1963 | 40.52 | 50.57 | 42.10 | 44.17 | 49.29 | 50.70 | 50.68 | 51.81 | 54.27 | 53.42 | 46.87 | 41.03 | 47.95 | |||||||||||||
1964 | 41.42 | 40.10 | 40.77 | 44.17 | 45.87 | 49.13 | 50.81 | 51.94 | 50.14 | a | 50.74 | 44.13 | 46.06 | 46.27 | ||||||||||||
1965 | 45.19 | 40.50 | 44.35 | 46.57 | 44.81 | 49.17 | 51.45 | 53.16 | 51.47 | 52.71 | 49.07 | 40.10 | 47.38 | |||||||||||||
1966 | 39.48 | 39.93 | 42.61 | 48.37 | 49.87 | 49.07 | 50.58 | 52.20 | a | 51.37 | 51.87 | 48.87 | 42.32 | 47.21 | ||||||||||||
1967 | 41.32 | 43.22 | a | 42.93 | a | 41.87 | 47.32 | 50.63 | 53.42 | 54.48 | 55.93 | 53.32 | 52.33 | 43.47 | a | 48.35 | ||||||||||
1968 | 44.16 | 49.52 | 45.42 | 44.73 | 47.13 | 50.60 | 52.65 | 53.23 | 52.63 | 50.84 | 49.17 | 42.23 | 48.52 | |||||||||||||
1969 | 47.10 | 42.82 | 42.77 | 45.27 | 48.10 | 52.80 | 53.26 | 51.45 | 53.27 | 49.42 | 50.50 | 46.00 | 48.56 | |||||||||||||
1970 | 47.94 | 46.89 | 45.90 | 41.63 | 48.03 | 50.23 | 51.77 | 51.61 | 51.20 | 50.39 | 49.30 | 45.03 | 48.33 | |||||||||||||
1971 | 44.84 | 43.75 | 41.97 | 43.67 | 47.71 | 49.63 | 52.03 | 54.58 | 53.43 | 46.61 | 46.30 | 40.74 | 47.11 | |||||||||||||
1972 | 43.29 | 45.93 | 46.58 | 44.43 | 47.00 | 52.37 | 52.52 | 54.10 | 55.50 | 54.90 | 49.10 | 43.16 | 49.07 | |||||||||||||
1973 | 43.16 | 48.11 | 42.87 | 45.40 | 49.39 | 51.17 | 52.19 | 52.74 | 53.97 | 51.55 | 46.63 | 45.35 | 48.54 | |||||||||||||
1974 | 44.58 | 42.18 | 47.32 | 43.86 | a | 45.94 | 51.07 | 52.61 | 54.03 | 52.30 | 50.03 | 45.47 | 41.10 | 47.54 | ||||||||||||
1975 | 40.57 | a | 41.07 | 41.94 | 40.63 | 45.90 | 50.43 | 50.07 | a | 51.52 | 50.03 | 46.52 | 43.38 | a | 40.39 | 45.20 | ||||||||||
1976 | 42.55 | 43.76 | 43.39 | 43.73 | 46.87 | 49.97 | 53.13 | 54.00 | a | 53.97 | 52.26 | 47.10 | 40.23 | a | 47.58 | |||||||||||
1977 | 42.23 | 44.96 | 39.10 | 42.20 | 46.56 | d | 51.59 | a | 51.27 | a | 54.32 | 52.30 | 50.39 | 49.57 | 48.81 | 47.77 | ||||||||||
1978 | 46.77 | 46.57 | 49.77 | 46.43 | 46.86 | c | 48.72 | a | 50.52 | 51.87 | 52.83 | 49.58 | 43.43 | 39.26 | 47.72 | |||||||||||
1979 | 41.26 | 41.36 | 44.71 | 45.00 | 48.93 | a | 49.70 | 51.27 | a | 52.65 | 52.87 | 51.00 | 43.23 | 42.81 | 47.06 | |||||||||||
1980 | 46.71 | 47.10 | 43.58 | 46.03 | 46.97 | 48.57 | 52.65 | 53.26 | 52.00 | 49.19 | 47.03 | 44.48 | 48.13 | |||||||||||||
1981 | 44.61 | 44.43 | 45.52 | 45.83 | a | 47.33 | a | 52.03 | 52.13 | 52.29 | 51.67 | 47.07 | a | 47.73 | 44.03 | 47.89 | ||||||||||
1982 | 40.29 | 45.08 | b | 44.42 | 47.03 | 48.73 | a | 51.50 | 51.43 | a | 53.29 | 53.03 | a | 50.27 | a | 45.53 | 43.06 | 47.81 | ||||||||
1983 | 44.65 | 46.07 | a | 47.19 | 45.34 | a | 48.90 | 51.36 | b | 54.94 | 56.87 | 55.10 | a | 51.92 | f | 47.17 | 45.13 | 49.34 | a | |||||||
1984 | 42.42 | 42.63 | b | 46.30 | a | 43.38 | a | 49.19 | 50.50 | 55.66 | b | 56.14 | c | 57.81 | c | 50.46 | e | 46.14 | b | 41.18 | c | 48.48 | ||||
1985 | 39.00 | f | 40.90 | g | 41.19 | d | 48.08 | d | 48.25 | c | 52.79 | k | 53.72 | b | 51.24 | b | 51.96 | b | 48.81 | e | 42.67 | i | 41.17 | a | 48.05 | d |
1986 | 43.12 | e | 44.31 | b | 43.54 | c | 42.93 | b | 43.03 | a | 47.43 | b | 49.27 | a | 51.73 | a | 48.30 | 47.16 | 45.20 | 40.07 | c | 45.51 | ||||
1987 | 36.00 | a | 39.62 | b | 40.31 | b | 44.53 | 46.89 | c | 48.47 | 49.87 | 51.48 | 51.10 | 50.63 | a | 44.14 | a | 37.10 | 45.01 | |||||||
1988 | 37.62 | b | 42.62 | 44.73 | a | 47.23 | 45.03 | 48.80 | 52.61 | 53.48 | 49.45 | a | 49.87 | a | 44.40 | 38.40 | a | 46.19 | ||||||||
1989 | 37.10 | a | 39.07 | a | 43.29 | 46.97 | 44.32 | 48.87 | 48.16 | 49.48 | 48.17 | a | 47.84 | 43.93 | 37.29 | 44.54 | ||||||||||
1990 | 38.29 | 37.96 | 42.00 | 45.27 | 46.17 | a | 47.37 | 51.81 | 52.68 | 51.13 | 48.58 | 44.14 | a | 35.63 | a | 45.09 | ||||||||||
1991 | 39.45 | 42.93 | 40.07 | a | 41.23 | 41.32 | 45.83 | a | 50.77 | 49.48 | b | 48.93 | 45.94 | 42.41 | a | 37.32 | 43.81 | |||||||||
1992 | 36.58 | 42.70 | b | 43.23 | 43.60 | 47.90 | 47.53 | 47.58 | 46.19 | 46.07 | b | 45.61 | 39.60 | 33.55 | 43.35 | |||||||||||
1993 | 36.10 | b | 36.29 | 45.17 | b | 44.68 | b | 49.63 | a | 51.07 | a | 52.73 | a | 54.34 | b | 52.50 | b | 51.30 | a | 45.93 | c | 41.13 | a | 46.74 | ||
1994 | 41.55 | b | 41.81 | b | 45.52 | b | 45.60 | 48.40 | a | 48.70 | 52.23 | 52.87 | a | 52.20 | 49.29 | 42.10 | 42.26 | 46.88 | ||||||||
1995 | 48.06 | 50.04 | a | 48.74 | 46.43 | b | 49.65 | 50.72 | a | 53.68 | 53.57 | a | 52.72 | a | 52.74 | 49.97 | a | 45.23 | a | 50.13 | ||||||
1996 | 44.60 | a | 47.89 | a | 46.52 | 49.24 | a | 50.10 | a | 51.00 | 52.90 | 53.16 | 52.50 | 50.33 | a | 48.97 | 47.73 | a | 49.58 | |||||||
1997 | 45.16 | 44.54 | 46.43 | a | 45.80 | 52.42 | 52.07 | 54.52 | 57.62 | b | 57.66 | a | 54.16 | 51.63 | 43.80 | a | 50.48 | |||||||||
1998 | 45.03 | 49.18 | 46.00 | 45.03 | 48.97 | 53.87 | 54.10 | 55.90 | 55.50 | 49.47 | a | 46.90 | 40.00 | a | 49.16 | |||||||||||
1999 | 43.26 | 43.48 | a | 42.87 | 43.00 | 45.94 | 48.80 | 53.26 | 52.29 | 52.07 | 50.58 | 47.00 | 44.42 | 47.25 | ||||||||||||
2000 | 45.26 | 46.73 | c | 45.68 | 47.73 | 48.39 | 52.80 | 52.65 | 53.10 | b | 53.90 | 50.97 | a | 43.73 | 44.77 | 48.81 | ||||||||||
2001 | 40.87 | 43.14 | 47.35 | 43.63 | 50.32 | 51.00 | 54.40 | a | 52.35 | 52.97 | a | 51.27 | a | 48.37 | 43.06 | 48.23 | ||||||||||
2002 | 39.63 | a | 44.44 | a | 42.58 | 46.27 | 47.48 | 49.53 | 53.31 | e | 52.94 | 51.70 | 48.42 | 49.20 | 44.67 | a | 47.51 | |||||||||
2003 | 48.71 | 45.18 | 46.00 | 44.73 | 49.50 | a | 52.07 | 52.38 | b | 55.00 | a | 54.00 | a | 51.06 | 46.20 | 43.65 | 49.04 | |||||||||
2004 | 42.71 | 43.21 | 49.29 | 46.60 | 49.19 | 51.40 | 54.58 | 55.17 | a | 52.80 | 51.53 | a | 43.78 | c | 44.69 | e | 48.75 | |||||||||
2005 | 45.63 | a | 47.12 | c | 49.17 | a | 45.67 | 50.26 | 51.03 | 53.52 | 54.13 | a | 51.36 | b | 49.90 | a | 49.00 | a | 45.59 | b | 49.36 | |||||
2006 | 44.53 | a | 43.46 | d | 41.04 | c | 47.56 | c | 49.39 | 51.83 | 53.81 | 54.72 | b | 53.13 | 49.90 | 48.83 | 43.94 | 48.51 | ||||||||
2007 | 40.46 | r | 44.22 | a | 48.20 | a | 46.97 | a | 50.06 | 51.62 | f | 55.29 | 54.65 | 55.79 | p | 52.54 | c | 50.43 | 43.75 | o | 50.29 | d | ||||
2008 | 45.10 | ----- | z | 45.50 | a | 46.50 | 49.42 | 48.12 | v | 55.55 | 55.79 | g | 54.50 | b | 52.68 | l | 51.40 | 43.61 | 48.95 | d | ||||||
2009 | 48.29 | 44.96 | 45.45 | 45.77 | 50.55 | 54.29 | p | 53.19 | 54.58 | 54.29 | i | 53.68 | f | 46.57 | 45.23 | 48.29 | c | |||||||||
2010 | 47.06 | 46.61 | 44.29 | j | 46.60 | 47.65 | 50.44 | c | 54.44 | f | 54.28 | f | 51.96 | d | 52.76 | f | 47.24 | a | 47.90 | 48.18 | d | |||||
2011 | 47.30 | a | 44.14 | 48.74 | 48.00 | a | 48.65 | 53.10 | a | 57.03 | 56.32 | 56.63 | 55.48 | 49.00 | ----- | z | 51.31 | a | ||||||||
2012 | ----- | z | ----- | z | ----- | z | 48.57 | 49.45 | 51.87 | 56.13 | 56.06 | 55.07 | 55.65 | 53.17 | 47.52 | 52.61 | c | |||||||||
2013 | 43.48 | 44.11 | a | 48.19 | 49.43 | 51.42 | 53.50 | 57.06 | 56.10 | 55.00 | 52.68 | 49.63 | 43.55 | 50.35 | ||||||||||||
2014 | 47.97 | 50.07 | 50.42 | 50.80 | 53.52 | 54.83 | 60.16 | 59.81 | 58.00 | 58.39 | 52.37 | 49.61 | 53.83 | |||||||||||||
2015 | 48.29 | 51.82 | 51.23 | 49.77 | 52.74 | 56.87 | 61.68 | 60.61 | 63.73 | 62.32 | 49.80 | 43.19 | 54.34 | |||||||||||||
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.17 | 44.34 | 44.88 | 45.58 | 48.01 | 50.60 | 52.91 | 53.52 | 52.89 | 50.83 | 47.08 | 42.86 | 47.84 | |||||||||||||
S.D. | 3.37 | 3.20 | 2.79 | 2.18 | 2.26 | 2.01 | 2.48 | 2.38 | 2.78 | 2.98 | 2.89 | 3.21 | 2.05 | |||||||||||||
SKEW | -0.33 | 0.07 | 0.18 | 0.02 | -0.20 | 0.38 | 1.05 | 0.27 | 0.94 | 1.24 | -0.10 | -0.53 | 0.68 | |||||||||||||
MAX | 48.71 | 51.82 | 51.23 | 50.80 | 53.52 | 56.87 | 61.68 | 60.61 | 63.73 | 62.32 | 53.17 | 49.61 | 54.34 | |||||||||||||
MIN | 36.00 | 36.29 | 39.10 | 40.63 | 41.32 | 45.83 | 47.58 | 46.19 | 46.07 | 45.61 | 39.60 | 33.55 | 43.35 | |||||||||||||
YRS | 53 | 54 | 55 | 57 | 57 | 53 | 56 | 55 | 55 | 53 | 56 | 55 | 48 |