YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | 48.71 | 56.35 | a | 64.27 | 70.97 | 76.78 | 75.50 | n | 71.81 | 69.12 | 67.37 | 53.10 | 45.56 | 62.40 | b | |||||||||
1948 | 44.73 | 55.89 | a | 58.34 | b | 68.60 | 72.10 | 76.82 | 74.61 | 75.79 | 68.75 | 61.76 | b | 50.04 | e | 55.92 | 63.61 | |||||||||
1949 | 45.50 | 54.30 | e | 60.56 | 59.30 | 72.81 | 75.80 | 74.61 | 71.68 | 68.42 | 61.24 | b | 55.65 | 49.61 | 62.46 | |||||||||||
1950 | 56.45 | 54.84 | 59.92 | 65.95 | 72.32 | 74.20 | 73.19 | 72.45 | 70.70 | 66.60 | 56.06 | c | 51.50 | a | 64.52 | |||||||||||
1951 | 49.95 | 53.37 | a | 57.87 | 63.00 | 71.87 | 77.58 | 76.48 | 76.63 | 71.78 | 66.42 | 52.80 | h | 51.05 | 65.09 | a | ||||||||||
1952 | 55.09 | b | 51.36 | 53.68 | 61.33 | c | 68.19 | 74.88 | 72.52 | 77.13 | a | 70.43 | 61.18 | 52.02 | 47.11 | 62.08 | ||||||||||
1953 | 48.50 | o | 52.00 | c | 61.76 | b | 64.15 | 69.82 | 77.93 | 75.69 | 72.30 | a | 69.12 | 62.70 | f | 52.65 | f | 42.08 | 64.98 | c | ||||||
1954 | 53.26 | 55.48 | 58.27 | 67.29 | a | 70.25 | a | 75.80 | 75.23 | 73.53 | 71.98 | 64.62 | a | 54.97 | k | 50.37 | 65.10 | a | ||||||||
1955 | 46.13 | 48.81 | g | 60.38 | a | 66.78 | 72.50 | a | 75.75 | 74.37 | 73.29 | 71.00 | 64.74 | 55.18 | 52.44 | 64.78 | a | |||||||||
1956 | 50.24 | 51.55 | 58.95 | 64.48 | 74.06 | 76.40 | 75.44 | 74.13 | 69.14 | a | 65.48 | 52.30 | 49.02 | 63.43 | ||||||||||||
1957 | 55.32 | 59.98 | 56.71 | 64.55 | 67.06 | 75.33 | 76.45 | 76.71 | q | 68.58 | e | 59.83 | g | 51.52 | 53.31 | 62.88 | b | |||||||||
1958 | 45.18 | 52.25 | 52.44 | 63.93 | 69.26 | b | 77.37 | 78.32 | 75.24 | 69.93 | 58.59 | b | 54.47 | 47.61 | 62.05 | |||||||||||
1959 | 50.53 | a | 52.77 | 54.27 | 62.62 | 72.18 | 74.42 | 72.45 | 74.13 | d | 72.13 | g | 63.91 | c | 50.92 | 47.91 | c | 61.46 | a | |||||||
1960 | 47.87 | a | 46.22 | 58.91 | b | 65.28 | 71.77 | 77.12 | 73.76 | 72.50 | 69.33 | 66.23 | 57.63 | 45.97 | 62.72 | |||||||||||
1961 | 44.27 | 50.71 | 59.15 | 65.52 | 72.78 | b | 72.60 | 72.53 | 71.65 | 71.05 | 65.38 | b | 53.79 | a | 52.24 | 62.64 | ||||||||||
1962 | 45.32 | a | 58.98 | 54.76 | 65.86 | a | 74.73 | a | 75.16 | a | 75.29 | 76.43 | a | 71.58 | 66.80 | a | 56.42 | 48.72 | b | 64.17 | ||||||
1963 | 47.62 | a | 50.14 | 59.58 | a | 68.16 | a | 71.95 | 77.03 | 76.64 | b | 73.97 | 68.45 | 63.74 | 56.17 | a | 47.45 | 63.41 | ||||||||
1964 | 46.00 | a | 47.52 | 57.88 | a | 67.07 | a | 73.06 | 74.17 | 75.42 | 75.87 | 70.00 | 61.65 | 56.78 | 50.81 | 63.02 | ||||||||||
1965 | 52.11 | 47.95 | 54.29 | 67.72 | 70.80 | a | 75.88 | 75.52 | 72.42 | 70.55 | 62.95 | 60.17 | 51.31 | 63.47 | ||||||||||||
1966 | 44.68 | 46.27 | 57.58 | 64.98 | a | 69.47 | 73.48 | b | 76.23 | a | 72.89 | 68.77 | 61.67 | b | 56.95 | 46.76 | 61.64 | |||||||||
1967 | 46.90 | b | 49.26 | a | 61.07 | a | 69.45 | 70.24 | 75.59 | a | 73.58 | a | 70.58 | 64.87 | 61.18 | 55.00 | a | 46.85 | 62.05 | |||||||
1968 | 46.28 | a | 49.03 | 50.69 | 60.75 | 70.63 | 73.83 | 72.05 | 72.48 | 65.05 | 64.66 | 52.32 | 48.50 | a | 60.52 | |||||||||||
1969 | 50.84 | 50.66 | 48.87 | 65.82 | 68.19 | 76.68 | 76.73 | 76.44 | 69.80 | 63.63 | 51.08 | 50.15 | 62.41 | |||||||||||||
1970 | 45.63 | 47.50 | 52.56 | 65.19 | a | 67.35 | a | 72.55 | a | 73.66 | 73.68 | a | 67.40 | 57.94 | 53.17 | 55.89 | 61.04 | |||||||||
1971 | 50.11 | 50.77 | 57.48 | 61.72 | 70.37 | 73.27 | 73.58 | 68.40 | 68.07 | 61.31 | 56.15 | 50.42 | 61.80 | |||||||||||||
1972 | 48.40 | 52.16 | 61.40 | 67.97 | 69.31 | 74.88 | 73.89 | 71.94 | 70.78 | 65.19 | 51.15 | 48.58 | 62.97 | |||||||||||||
1973 | 43.17 | d | 45.80 | a | 54.66 | 58.65 | 69.79 | 72.80 | 72.92 | 70.84 | 68.92 | 64.74 | 60.68 | 47.79 | 60.90 | |||||||||||
1974 | 50.34 | c | 49.29 | 62.15 | 64.13 | 73.31 | 75.38 | 74.08 | a | 71.85 | a | 65.37 | 60.81 | 53.02 | 47.57 | b | 62.27 | |||||||||
1975 | 46.31 | 49.16 | 56.66 | 63.17 | 70.35 | 76.83 | 70.45 | 70.84 | 66.47 | 64.06 | 55.05 | a | 48.84 | 61.52 | ||||||||||||
1976 | 44.37 | a | 55.26 | 58.23 | 63.43 | 65.65 | 73.87 | 69.74 | 71.19 | 65.93 | a | 55.13 | 46.35 | 43.02 | a | 59.35 | ||||||||||
1977 | 45.73 | 48.20 | 54.57 | a | 61.65 | 72.42 | 73.40 | 73.97 | 76.94 | 74.98 | a | 64.72 | a | 56.72 | 53.60 | 63.07 | ||||||||||
1978 | 46.73 | 46.66 | 56.31 | 66.97 | 71.61 | 75.23 | 75.52 | 71.29 | 65.42 | 60.48 | 55.97 | 48.23 | a | 61.70 | ||||||||||||
1979 | 44.55 | 50.61 | 56.08 | a | 63.72 | a | 66.95 | b | 71.57 | a | 75.77 | a | 71.52 | 67.15 | 67.13 | 50.33 | 48.35 | 61.14 | ||||||||
1980 | 51.32 | a | 50.12 | 55.14 | b | 60.02 | 70.52 | c | 79.07 | a | 78.71 | 73.11 | 70.35 | 58.18 | 48.63 | 49.76 | 62.08 | |||||||||
1981 | 44.82 | 50.32 | 51.98 | 61.87 | 68.05 | a | 72.72 | 74.27 | a | 71.37 | 68.12 | 61.17 | b | 56.79 | b | 51.13 | 61.05 | |||||||||
1982 | 49.27 | a | 48.54 | 59.07 | b | 63.95 | a | 67.42 | a | 74.67 | 74.29 | 74.57 | c | 71.79 | d | 63.23 | c | 51.98 | b | 45.95 | a | 62.06 | ||||
1983 | 45.26 | 47.16 | c | 54.66 | b | 57.86 | b | 69.30 | c | 75.15 | c | 75.72 | a | 73.71 | b | 71.40 | d | 63.64 | c | 54.75 | b | 49.08 | g | 62.60 | a | |
1984 | 44.13 | d | 47.62 | a | ----- | z | 63.12 | a | 70.65 | e | 72.31 | c | 72.41 | b | 73.71 | c | 68.34 | a | 61.87 | a | 54.98 | d | 55.02 | e | 62.20 | a |
1985 | 41.94 | e | 47.81 | b | 57.22 | b | 63.28 | a | 70.85 | ----- | z | 72.62 | g | 74.94 | e | 68.31 | a | 61.13 | 58.78 | 48.84 | 59.31 | b | ||||
1986 | 47.66 | 53.52 | a | 55.92 | 67.70 | 69.63 | 70.25 | 73.52 | 72.68 | 69.11 | b | 60.07 | a | 53.17 | c | 43.92 | 61.43 | |||||||||
1987 | 45.85 | 48.45 | 50.32 | 56.62 | b | 65.02 | a | 70.95 | 73.88 | b | 72.84 | 67.81 | a | 63.58 | 53.87 | 50.50 | a | 59.97 | ||||||||
1988 | 45.32 | 49.41 | 55.00 | 62.90 | a | 68.50 | 70.76 | a | 71.74 | 71.98 | 69.03 | a | 63.65 | a | 57.60 | 48.27 | a | 61.18 | ||||||||
1989 | 49.90 | a | 51.20 | 57.84 | 65.72 | e | 73.48 | b | 76.13 | c | 75.38 | b | 72.98 | a | 67.88 | a | 64.58 | 55.57 | 42.85 | a | 62.79 | |||||
1990 | 48.34 | 50.61 | 57.12 | a | 63.78 | a | 71.52 | b | 78.53 | 71.80 | c | 69.97 | a | 66.40 | 59.22 | b | 56.13 | 49.84 | b | 61.94 | ||||||
1991 | 46.29 | 49.64 | 56.35 | e | 63.73 | 72.03 | a | 74.91 | a | 70.65 | 70.73 | 64.50 | c | 62.66 | 50.37 | d | 47.47 | 60.78 | ||||||||
1992 | 40.72 | a | 47.07 | 55.15 | 60.37 | 64.27 | a | 74.93 | a | 74.53 | b | 70.87 | a | 69.35 | 64.45 | 48.64 | b | 51.43 | b | 60.15 | ||||||
1993 | 50.22 | d | 50.85 | a | 56.62 | b | 62.64 | b | 68.20 | c | 73.88 | 74.40 | a | 75.00 | d | 67.38 | b | 60.62 | c | 51.69 | a | 49.55 | 61.75 | |||
1994 | 48.53 | 51.55 | 56.10 | a | 62.75 | d | 70.10 | a | 75.70 | 76.28 | a | 74.02 | a | 69.29 | d | 61.39 | i | 58.47 | 51.15 | a | 63.09 | a | ||||
1995 | 46.98 | d | 53.98 | a | 55.46 | c | 61.55 | a | 72.31 | 73.29 | a | 75.24 | 74.14 | i | 69.64 | b | 64.50 | 56.17 | f | 54.77 | p | 63.66 | c | |||
1996 | 51.57 | h | 55.62 | 51.48 | a | 62.24 | c | 76.48 | c | 74.55 | a | 74.93 | h | 71.21 | c | 68.69 | a | 62.00 | a | 56.72 | a | 49.31 | e | 62.83 | b | |
1997 | 46.50 | e | 48.45 | 56.88 | a | 56.28 | 67.74 | 73.50 | a | 74.19 | d | 74.12 | b | 70.85 | f | 61.47 | b | 53.90 | a | 43.71 | e | 59.70 | a | |||
1998 | 50.08 | 48.31 | a | 54.29 | 60.42 | 75.32 | a | 79.21 | a | 75.60 | a | 71.40 | 70.23 | b | 64.24 | 56.69 | c | 49.36 | f | 64.16 | a | |||||
1999 | 50.12 | a | 55.83 | b | 58.05 | 66.07 | a | 71.65 | 73.15 | 72.45 | 74.10 | a | 69.48 | a | 62.78 | b | 56.11 | c | 45.31 | b | 62.92 | |||||
2000 | 51.85 | 55.71 | 58.30 | a | 65.83 | 74.73 | 71.75 | 76.77 | 73.76 | 72.13 | 62.26 | b | 49.27 | 45.11 | 63.12 | |||||||||||
2001 | 43.03 | a | 52.96 | a | 53.35 | a | 66.43 | b | 70.98 | 76.36 | a | 76.76 | 73.60 | b | 69.95 | 64.06 | 55.02 | b | 47.17 | b | 62.47 | |||||
2002 | 49.02 | a | 44.71 | 55.70 | a | 67.74 | a | 73.28 | a | 75.29 | a | 71.76 | b | 73.67 | b | 68.18 | 62.71 | 51.67 | 47.23 | a | 61.75 | |||||
2003 | 48.53 | a | 49.74 | a | 54.08 | 64.22 | a | 72.68 | 73.81 | a | 70.75 | a | 73.34 | 67.55 | 61.35 | a | 57.87 | 48.02 | 61.83 | |||||||
2004 | 48.18 | 46.90 | 56.97 | a | 60.71 | a | 70.18 | a | 73.62 | 73.00 | 70.15 | 66.40 | a | 63.95 | a | 50.88 | 45.42 | 60.53 | ||||||||
2005 | 52.10 | a | 48.06 | a | 52.90 | b | 62.07 | h | 68.82 | a | 75.97 | a | 75.39 | 72.23 | 72.28 | a | 62.34 | 55.79 | a | 49.70 | a | 62.32 | a | |||
2006 | 50.63 | 51.84 | 59.67 | a | 68.50 | b | 73.68 | 74.55 | 74.26 | 71.48 | b | 67.78 | a | 63.07 | b | 56.95 | a | 44.20 | a | 63.05 | ||||||
2007 | 42.40 | a | 50.02 | 57.11 | 60.82 | 67.31 | 73.91 | g | 70.85 | a | 73.16 | 69.58 | 64.15 | a | 53.41 | b | 50.08 | a | 59.90 | a | ||||||
2008 | 47.58 | 52.41 | 56.11 | 64.43 | 70.47 | 77.73 | 71.95 | 70.24 | 63.67 | 61.90 | a | 53.02 | 51.10 | 61.72 | ||||||||||||
2009 | 50.31 | 54.67 | b | 57.58 | 63.50 | a | 70.53 | 75.27 | 76.29 | 74.43 | a | 65.45 | 62.42 | 53.30 | 45.79 | 62.46 | ||||||||||
2010 | 42.77 | 44.37 | a | 51.26 | 61.93 | 71.23 | 76.77 | 71.56 | 74.61 | 69.45 | 64.81 | 55.73 | 51.05 | 61.30 | ||||||||||||
2011 | 46.50 | 48.09 | 62.66 | 70.15 | 73.15 | 80.87 | 77.69 | 78.81 | 72.70 | 65.18 | a | 55.93 | 45.71 | 64.79 | ||||||||||||
2012 | 48.98 | 50.50 | 59.07 | a | 67.80 | 71.39 | c | 77.38 | 74.02 | 75.03 | 69.92 | 65.61 | 58.32 | 52.74 | 64.23 | |||||||||||
2013 | 45.92 | 49.89 | 56.02 | 63.57 | 70.10 | 77.00 | 73.11 | 75.42 | 69.97 | 61.50 | p | 51.32 | 47.52 | a | 61.80 | a | ||||||||||
2014 | 46.08 | 55.89 | a | 56.00 | 64.52 | 69.15 | 77.20 | 75.13 | 74.43 | a | 68.93 | c | 66.62 | a | 50.20 | c | 49.52 | h | 64.01 | a | ||||||
2015 | 44.45 | c | 51.09 | a | 53.67 | a | 63.00 | a | 69.92 | 73.10 | a | 76.31 | 77.18 | 72.60 | a | 65.31 | b | 56.00 | 51.50 | c | 62.84 | |||||
2016 | 44.66 | 53.93 | 59.65 | 64.65 | 69.69 | 74.22 | a | 77.89 | i | 72.38 | e | 69.27 | 67.15 | d | 57.15 | 52.24 | 62.27 | a | ||||||||
2017 | 51.27 | a | 56.66 | 62.50 | c | 66.05 | a | 70.03 | 77.12 | a | 74.77 | 72.72 | a | 70.85 | 63.08 | 59.77 | 49.70 | a | 64.54 | |||||||
2018 | 46.56 | 57.81 | b | 59.58 | 65.17 | 75.66 | 78.12 | a | 75.85 | 75.32 | a | 66.97 | 60.52 | 50.93 | 48.21 | j | 64.77 | a | ||||||||
2019 | 47.22 | a | 54.09 | 57.06 | 64.07 | 71.69 | 75.91 | c | 76.10 | u | 79.57 | p | 72.00 | 63.32 | 54.93 | a | 50.44 | 61.07 | b | |||||||
2020 | 50.13 | 48.81 | 61.54 | c | 67.06 | e | 73.71 | 76.40 | 78.16 | b | 77.82 | 67.83 | 65.42 | 59.50 | 45.21 | b | 64.30 | |||||||||
2021 | 45.50 | 50.66 | 56.55 | a | 63.22 | 69.90 | 76.65 | 73.24 | 72.95 | 71.68 | 66.13 | 57.23 | 58.68 | 63.53 | ||||||||||||
2022 | 46.34 | 47.02 | 56.74 | 67.92 | 76.40 | 77.85 | 79.02 | 74.08 | 68.67 | 60.79 | 51.83 | 50.79 | 63.12 | |||||||||||||
2023 | 50.73 | 50.96 | 58.73 | 62.52 | 69.73 | 79.25 | 79.45 | 78.94 | 76.55 | 64.85 | 53.27 | 50.77 | 64.65 | |||||||||||||
2024 | 46.97 | 54.31 | 55.57 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.28 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.61 | 50.93 | 56.69 | 64.08 | 70.80 | 75.28 | 74.47 | 73.39 | 69.15 | 63.17 | 54.39 | 49.01 | 62.33 | |||||||||||||
S.D. | 3.17 | 3.36 | 2.96 | 2.89 | 2.47 | 2.13 | 2.11 | 2.14 | 2.32 | 2.40 | 3.03 | 3.19 | 1.25 | |||||||||||||
SKEW | 0.45 | 0.46 | -0.22 | -0.37 | -0.08 | -0.04 | 0.06 | 0.45 | 0.21 | -0.60 | -0.22 | 0.28 | -0.00 | |||||||||||||
MAX | 56.45 | 59.98 | 62.66 | 70.15 | 76.48 | 80.87 | 79.45 | 78.94 | 76.55 | 67.37 | 60.68 | 58.68 | 64.79 | |||||||||||||
MIN | 40.72 | 44.37 | 48.87 | 56.28 | 64.27 | 70.25 | 69.74 | 68.40 | 63.67 | 55.13 | 46.35 | 42.08 | 59.35 | |||||||||||||
YRS | 75 | 77 | 77 | 76 | 77 | 75 | 72 | 74 | 75 | 73 | 73 | 72 | 55 |