YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.50 | h | ----- | z |
1952 | 39.65 | 43.09 | 44.67 | b | 51.88 | i | 55.76 | 58.95 | 66.98 | a | 66.25 | a | 64.18 | b | 57.12 | a | 37.74 | a | 41.37 | a | 52.34 | a | ||||
1953 | 46.07 | b | 42.80 | 44.61 | c | 48.19 | a | 53.82 | a | 56.53 | a | 64.22 | b | 65.23 | a | 62.07 | a | 53.73 | a | 48.38 | 43.45 | b | 52.43 | |||
1954 | 39.93 | c | 42.67 | b | 43.29 | b | 49.07 | b | 56.18 | 57.53 | 61.47 | 62.30 | a | 59.00 | a | 51.95 | c | 49.20 | 39.87 | 51.04 | ||||||
1955 | 38.57 | a | 39.40 | b | 41.34 | 45.72 | 52.60 | b | 59.62 | b | 61.63 | a | 64.62 | a | 60.82 | 53.00 | b | 45.02 | g | 40.71 | 50.73 | a | ||||
1956 | 41.48 | 36.28 | b | 43.36 | c | 52.02 | a | 58.50 | 58.83 | a | 67.24 | d | 65.08 | 61.43 | a | 52.23 | a | 41.07 | b | 40.48 | b | 51.50 | ||||
1957 | 32.60 | 42.81 | a | 47.36 | b | 51.75 | 57.53 | a | 60.53 | a | 63.35 | a | 63.37 | d | 65.78 | 54.13 | 43.80 | 45.27 | a | 52.36 | ||||||
1958 | 43.44 | 50.58 | b | 45.63 | 51.57 | a | 60.68 | 64.67 | 71.44 | d | 69.55 | a | 62.02 | b | 56.00 | c | 47.00 | a | 45.79 | c | 55.70 | |||||
1959 | 43.53 | a | 43.74 | a | 47.27 | c | 51.12 | a | 53.69 | b | 61.23 | b | 67.94 | 65.32 | a | 58.13 | 54.19 | 43.74 | a | 40.73 | 52.55 | |||||
1960 | 37.45 | a | 42.64 | 46.00 | 51.22 | 53.47 | 62.15 | 68.02 | a | 63.87 | a | 61.08 | 54.02 | a | 45.57 | 39.61 | 52.09 | |||||||||
1961 | 43.97 | 47.09 | 47.15 | 50.57 | 55.69 | 64.75 | 67.29 | 69.52 | 58.90 | 52.50 | a | 42.30 | 41.23 | 53.41 | ||||||||||||
1962 | 37.37 | 42.02 | 44.03 | 52.28 | 51.77 | 59.68 | 64.98 | 64.23 | 61.67 | 52.10 | 46.95 | 41.24 | 51.53 | |||||||||||||
1963 | 33.68 | 49.37 | a | 45.06 | 48.05 | 56.77 | 60.57 | 62.58 | 66.06 | 66.00 | 55.40 | 47.55 | a | 41.55 | 52.72 | |||||||||||
1964 | 42.19 | 41.34 | 44.92 | 48.15 | 53.18 | 59.53 | 65.27 | 64.53 | 59.18 | 54.82 | 42.78 | 40.13 | 51.34 | |||||||||||||
1965 | 41.15 | 43.89 | 47.65 | 52.12 | 53.27 | 61.07 | 67.02 | a | 62.21 | 60.07 | a | 56.56 | 49.17 | 39.10 | 52.77 | |||||||||||
1966 | 41.00 | 41.95 | 45.68 | 52.12 | 55.81 | 62.07 | 65.23 | 66.29 | 63.32 | 53.58 | 47.17 | a | 45.24 | 53.29 | ||||||||||||
1967 | 44.53 | 44.59 | 44.69 | 46.43 | 55.71 | 64.52 | 67.66 | 71.82 | 65.13 | 54.45 | 46.42 | 41.16 | 53.93 | |||||||||||||
1968 | 39.94 | 48.10 | 49.11 | 48.18 | 55.05 | 61.58 | 66.79 | 64.45 | 60.97 | 52.45 | b | 46.67 | 38.85 | 52.68 | ||||||||||||
1969 | 35.31 | 40.57 | 46.74 | 50.03 | 58.44 | 64.20 | 64.06 | 63.13 | 61.88 | 51.38 | a | 44.80 | 42.68 | 51.94 | ||||||||||||
1970 | 41.39 | 45.80 | 47.76 | 46.70 | 55.55 | 63.38 | 66.55 | 65.00 | 58.37 | 52.02 | 46.47 | 40.11 | 52.42 | |||||||||||||
1971 | 39.56 | 41.02 | 43.68 | 49.00 | 56.15 | 57.87 | 66.24 | 67.94 | 58.55 | 50.81 | 44.17 | 39.26 | 51.19 | |||||||||||||
1972 | 37.74 | 44.02 | 49.59 | c | 46.42 | 57.42 | 60.20 | 67.98 | 68.62 | a | 58.16 | a | 51.58 | 47.52 | 36.16 | 52.12 | ||||||||||
1973 | 38.35 | 45.34 | 45.69 | 49.93 | 57.19 | 60.93 | 66.94 | 62.77 | 61.60 | 52.05 | a | 43.60 | 43.66 | 52.34 | ||||||||||||
1974 | 37.55 | 41.12 | 47.15 | 49.88 | 53.65 | 62.15 | 64.68 | 67.27 | 66.63 | 54.47 | 47.53 | 44.39 | 53.04 | |||||||||||||
1975 | 42.73 | 43.61 | 44.58 | a | 46.20 | 55.91 | b | 59.97 | 66.34 | 63.19 | 63.05 | 52.15 | 44.95 | 43.21 | 52.16 | |||||||||||
1976 | 41.73 | 41.36 | 43.94 | 49.14 | a | 55.84 | 57.76 | a | 65.15 | 64.71 | 62.21 | b | 53.15 | 46.03 | 38.21 | 51.60 | ||||||||||
1977 | 38.05 | 45.04 | a | 44.56 | 52.32 | 52.03 | 62.82 | 65.10 | 70.32 | 59.63 | 54.08 | 44.93 | 43.77 | 52.72 | ||||||||||||
1978 | 42.94 | 46.12 | 49.43 | a | 49.68 | 54.77 | a | 64.55 | a | 67.58 | a | 67.61 | 59.37 | 54.68 | 40.29 | a | 36.12 | a | 52.76 | |||||||
1979 | 31.50 | a | 41.69 | b | 48.44 | 50.00 | 55.44 | ----- | z | 66.78 | a | 64.61 | 62.83 | 56.62 | a | 43.97 | 44.00 | 51.44 | a | |||||||
1980 | 36.35 | 43.83 | 45.32 | 51.98 | 53.56 | 57.42 | 64.84 | 62.39 | 61.20 | 54.05 | 47.52 | 42.94 | 51.78 | |||||||||||||
1981 | 40.95 | a | 42.98 | 47.08 | 50.48 | a | 55.31 | 59.27 | 63.81 | 67.27 | 62.73 | j | 50.38 | o | 46.25 | 42.93 | h | 52.60 | c | |||||||
1982 | 22.83 | y | 43.95 | q | 44.66 | b | 46.35 | f | 54.68 | i | 60.80 | g | 63.98 | b | 65.03 | b | 59.93 | c | 53.19 | e | 42.29 | b | 40.69 | 52.82 | e | |
1983 | 42.89 | 45.81 | b | 48.85 | 49.77 | 56.87 | 58.68 | 62.27 | ----- | z | 58.28 | 51.61 | 48.00 | a | 36.13 | 50.83 | a | |||||||||
1984 | 41.39 | 44.64 | a | 49.22 | a | 48.13 | 53.21 | 57.48 | 64.31 | 65.26 | 60.15 | 49.95 | 44.37 | 37.12 | a | 51.27 | ||||||||||
1985 | 34.10 | a | 38.59 | 43.90 | 51.95 | a | 55.97 | 61.85 | 69.52 | 65.02 | 58.33 | a | 52.71 | 37.55 | 33.55 | 50.25 | ||||||||||
1986 | 43.19 | 44.02 | 51.11 | 48.72 | 55.53 | 64.45 | 62.89 | 69.05 | 58.45 | 54.34 | 46.82 | 39.92 | 53.21 | |||||||||||||
1987 | 39.50 | 44.70 | a | 48.23 | a | 53.03 | 58.55 | a | 63.27 | 64.44 | 66.27 | 62.82 | 56.92 | 47.55 | 38.54 | c | 53.65 | |||||||||
1988 | 39.19 | 42.40 | 46.15 | 50.95 | 53.97 | 60.03 | 66.10 | 64.60 | a | 61.40 | 56.52 | b | 47.12 | 39.70 | a | 52.34 | ||||||||||
1989 | 41.00 | a | 34.89 | a | 45.34 | b | 53.76 | a | 55.62 | a | 62.94 | c | 63.47 | 64.03 | 63.05 | b | 52.37 | 46.42 | d | 39.93 | b | 51.90 | ||||
1990 | ----- | z | ----- | z | 48.18 | c | 53.63 | c | 54.66 | b | 60.34 | b | 67.97 | 67.48 | a | 64.50 | a | 51.71 | 46.76 | a | 32.69 | d | 54.79 | b | ||
1991 | 38.60 | 47.46 | 45.08 | 49.29 | b | 52.81 | 57.48 | a | 66.70 | a | 67.23 | a | ----- | z | 54.58 | 47.64 | a | 41.69 | b | 51.69 | a | |||||
1992 | 42.89 | d | 47.22 | 50.06 | 54.19 | a | 59.53 | b | 65.50 | a | 67.40 | 67.65 | a | 61.64 | a | 54.77 | 45.56 | c | 39.48 | a | 54.66 | |||||
1993 | 35.38 | b | 38.90 | b | 48.68 | 51.02 | a | 58.92 | a | 60.33 | 62.10 | a | 65.83 | b | 63.10 | 56.71 | b | 38.67 | a | 38.46 | d | 51.51 | ||||
1994 | 42.60 | a | 40.75 | b | 48.94 | 52.46 | b | 58.05 | 60.05 | 68.02 | 66.32 | 64.83 | 52.43 | b | 40.69 | a | 41.89 | d | 53.09 | |||||||
1995 | 43.58 | a | 46.22 | a | 47.55 | a | 49.75 | 57.60 | 60.95 | 68.25 | a | 64.69 | b | 64.46 | b | 52.61 | 50.62 | 43.00 | a | 54.11 | ||||||
1996 | 42.23 | 41.95 | 47.33 | b | 52.32 | 53.37 | 60.90 | 70.55 | a | 66.84 | c | 60.06 | e | 51.88 | e | 45.58 | e | 42.37 | 52.95 | |||||||
1997 | 40.52 | b | 42.42 | b | 46.60 | a | 50.20 | b | 61.12 | a | 62.20 | b | 67.38 | c | 70.48 | a | 64.52 | d | 52.24 | 48.85 | 39.85 | 53.86 | ||||
1998 | 44.63 | a | 46.12 | b | 47.40 | 50.38 | a | 55.19 | 61.84 | b | 69.76 | 67.32 | 63.78 | 52.97 | 47.50 | a | 40.33 | b | 53.94 | |||||||
1999 | 41.18 | a | 43.41 | 44.57 | b | 49.40 | 53.58 | 59.92 | 64.90 | 67.15 | 62.66 | b | 54.66 | b | 49.20 | 41.84 | 52.71 | |||||||||
2000 | 40.00 | b | 43.78 | 44.50 | 52.05 | 56.11 | 63.78 | 66.08 | a | 65.10 | a | 61.92 | 53.37 | 41.38 | a | 40.38 | a | 52.37 | ||||||||
2001 | 40.17 | a | 41.14 | 46.63 | a | 48.71 | b | 57.27 | a | 59.32 | 65.15 | a | 66.98 | a | 62.72 | a | 53.08 | 48.12 | a | 41.47 | 52.56 | |||||
2002 | 41.36 | b | 42.89 | a | 43.18 | 50.79 | a | 54.07 | b | 62.48 | 68.67 | a | 66.45 | 63.09 | b | 52.34 | 46.40 | 43.42 | a | 52.93 | ||||||
2003 | 45.17 | a | 43.29 | 48.34 | 49.28 | 55.68 | a | 65.05 | b | 69.33 | a | 67.73 | 64.00 | a | 57.41 | b | 42.74 | a | 42.23 | a | 54.19 | |||||
2004 | 39.97 | 44.33 | b | 49.44 | 53.74 | c | 58.39 | 63.48 | a | 69.77 | 69.40 | 60.98 | c | 56.08 | a | 44.81 | a | 43.33 | b | 54.48 | ||||||
2005 | 41.46 | c | 42.17 | a | 49.78 | a | 51.41 | a | 60.43 | b | 61.66 | a | 69.42 | a | 69.37 | a | 61.53 | a | 56.24 | 44.08 | 39.97 | 53.96 | ||||
2006 | 44.74 | 42.09 | a | 46.12 | c | 52.68 | ----- | z | 65.09 | b | 69.88 | b | 68.00 | b | 63.70 | 52.95 | 47.47 | 41.33 | b | 54.01 | a | |||||
2007 | 38.98 | b | 45.50 | 51.02 | b | 51.60 | a | 57.95 | c | 62.46 | b | 71.05 | 68.14 | c | 62.57 | 51.58 | a | 42.12 | d | 40.52 | 53.62 | |||||
2008 | 36.26 | b | 42.27 | c | 42.95 | a | 46.65 | 56.21 | b | 58.15 | 65.65 | e | 66.24 | 60.64 | b | 51.56 | 47.81 | a | 37.30 | a | 50.97 | |||||
2009 | 38.18 | 41.13 | a | 43.03 | 48.83 | 56.09 | c | 62.25 | 69.79 | 66.47 | 62.02 | 51.48 | 45.58 | 35.03 | 51.66 | |||||||||||
2010 | 45.31 | 45.80 | 46.70 | a | 49.12 | a | 53.27 | 59.22 | a | 65.06 | 65.87 | 61.82 | 53.13 | 44.68 | 43.50 | 52.79 | ||||||||||
2011 | 40.56 | 39.41 | 45.47 | 46.22 | 51.82 | 59.68 | 63.65 | ----- | z | 64.73 | 65.56 | g | 43.72 | 36.81 | 49.21 | b | ||||||||||
2012 | 40.16 | 42.22 | 43.03 | 51.42 | 54.81 | 58.79 | b | 65.72 | a | 67.44 | 62.50 | 54.55 | 47.88 | 42.11 | 52.55 | |||||||||||
2013 | 35.35 | 41.92 | i | 45.79 | 51.65 | 56.97 | 62.72 | 67.21 | 67.75 | a | 63.40 | 49.77 | 43.57 | 32.87 | 52.46 | a | ||||||||||
2014 | 38.56 | 39.96 | 47.92 | 50.55 | 58.48 | 61.57 | 69.37 | 69.77 | 64.53 | 58.19 | 44.75 | 43.34 | 53.92 | |||||||||||||
2015 | 41.73 | 46.95 | 50.08 | 49.85 | 57.39 | 66.67 | 70.08 | 68.03 | 60.48 | 57.10 | 42.90 | 42.48 | 54.48 | |||||||||||||
2016 | 42.00 | 46.40 | 47.56 | 54.87 | 58.00 | 63.00 | 65.48 | 67.90 | 60.23 | 54.02 | 50.55 | 35.89 | 53.83 | |||||||||||||
2017 | 34.90 | 41.54 | 46.73 | 49.03 | 56.48 | 62.20 | 66.52 | 69.15 | 63.43 | 52.31 | 46.73 | 37.85 | 52.24 | |||||||||||||
2018 | 44.03 | 41.07 | 44.18 | 50.82 | 58.44 | 61.78 | 68.85 | 67.63 | 60.12 | 54.16 | 44.72 | a | 41.52 | 53.11 | ||||||||||||
2019 | 40.61 | 36.62 | 43.69 | 51.33 | 57.35 | 61.83 | 66.10 | ----- | z | 61.55 | 48.39 | 43.58 | 40.63 | 50.15 | a | |||||||||||
2020 | 44.39 | 41.93 | 43.84 | 51.10 | 57.02 | 60.98 | 67.24 | 67.44 | 63.07 | 52.92 | 43.27 | 40.81 | 52.83 | |||||||||||||
2021 | 42.68 | 41.96 | 43.90 | 51.62 | 56.31 | 66.50 | c | 68.90 | 68.71 | 61.65 | 51.58 | 47.70 | 40.53 | 53.50 | ||||||||||||
2022 | 39.77 | 40.23 | 47.42 | 46.17 | 52.63 | 61.05 | 69.13 | 70.02 | 65.08 | 57.32 | 39.72 | 39.13 | 52.31 | |||||||||||||
2023 | 41.71 | 38.89 | 41.55 | 48.38 | 59.56 | 62.87 | 69.03 | 69.98 | 61.18 | 53.61 | 43.83 | 43.50 | 52.84 | |||||||||||||
2024 | 41.24 | 43.79 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.52 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.32 | 43.00 | 46.26 | 50.24 | 55.94 | 61.36 | 66.56 | 66.57 | 61.89 | 53.58 | 45.25 | 40.47 | 52.73 | |||||||||||||
S.D. | 3.16 | 2.91 | 2.29 | 2.12 | 2.22 | 2.35 | 2.38 | 2.22 | 2.11 | 2.02 | 2.86 | 2.84 | 1.05 | |||||||||||||
SKEW | -0.64 | -0.10 | 0.09 | -0.24 | 0.14 | 0.13 | -0.12 | 0.02 | 0.03 | 0.24 | -0.65 | -0.70 | 0.23 | |||||||||||||
MAX | 46.07 | 50.58 | 51.11 | 54.87 | 61.12 | 66.67 | 71.44 | 71.82 | 66.63 | 58.19 | 50.62 | 45.79 | 55.70 | |||||||||||||
MIN | 31.50 | 34.89 | 41.34 | 45.72 | 51.77 | 56.53 | 61.47 | 62.21 | 58.13 | 48.39 | 37.55 | 32.69 | 50.25 | |||||||||||||
YRS | 71 | 70 | 72 | 70 | 70 | 70 | 72 | 69 | 70 | 70 | 71 | 71 | 60 |