YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.42 | k | ----- | z |
1943 | ----- | z | 50.29 | 54.78 | d | 59.90 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.99 | i | |
1944 | ----- | z | ----- | z | 52.50 | e | 55.23 | 67.03 | a | 70.81 | c | 79.42 | m | 77.95 | 75.38 | 66.22 | d | 51.31 | a | 46.84 | 62.59 | c | ||||
1945 | 43.03 | 49.88 | 50.27 | 60.00 | a | 66.85 | 75.29 | a | 84.68 | 79.48 | 75.28 | 66.53 | 52.91 | a | 47.52 | 62.64 | ||||||||||
1946 | 42.71 | 46.89 | 53.05 | 61.70 | b | 66.60 | 73.71 | d | 81.76 | d | 80.62 | a | 74.59 | a | 59.93 | b | 50.30 | j | 43.33 | d | 62.26 | a | ||||
1947 | 36.07 | b | 52.25 | h | 55.63 | a | 61.63 | 71.17 | a | 75.78 | 77.28 | o | 77.44 | f | ----- | z | ----- | z | ----- | z | ----- | z | 60.06 | g | ||
1948 | ----- | z | ----- | z | ----- | z | 57.85 | t | 63.15 | g | 76.33 | a | 78.38 | g | 76.00 | k | ----- | z | ----- | z | ----- | z | 43.94 | f | 76.33 | k |
1949 | 39.21 | 46.71 | 53.27 | 63.32 | 66.85 | 76.48 | 81.18 | 76.06 | 74.92 | 62.82 | 57.40 | 44.85 | 61.92 | |||||||||||||
1950 | 43.82 | 52.09 | 54.73 | 62.27 | 68.44 | 73.57 | 83.66 | 80.50 | 73.32 | 67.32 | a | 58.60 | 50.95 | b | 64.10 | |||||||||||
1951 | 46.50 | 49.64 | 54.23 | 61.53 | 68.05 | a | 75.58 | 80.48 | 79.77 | 76.73 | 65.03 | 56.37 | 46.39 | 63.36 | ||||||||||||
1952 | 45.85 | 50.38 | 50.39 | 61.08 | 70.35 | 70.72 | 83.35 | 80.29 | b | 76.70 | 68.32 | 52.20 | 48.03 | 63.14 | ||||||||||||
1953 | 50.23 | 49.96 | 53.92 | 60.02 | a | 62.25 | a | 69.91 | a | 82.98 | 76.35 | a | 75.95 | 63.68 | 53.62 | 45.45 | c | 62.03 | ||||||||
1954 | 46.28 | a | 49.77 | d | 52.35 | 63.57 | 69.26 | 72.37 | 82.32 | 75.59 | h | 71.83 | 64.41 | t | ----- | z | 46.10 | g | 63.47 | d | ||||||
1955 | ----- | z | ----- | z | 60.81 | w | 56.38 | 67.23 | a | 73.28 | 79.20 | h | 82.23 | 75.55 | 66.16 | 52.67 | 51.50 | a | 65.63 | d | ||||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | 67.40 | 75.25 | 80.40 | b | 76.36 | b | 74.92 | 61.15 | 52.47 | 44.08 | 66.50 | d | ||||||
1957 | 41.34 | 52.65 | o | 57.39 | 61.40 | 65.35 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.00 | y | 44.69 | 54.03 | g | ||||
1958 | 45.87 | 53.36 | 52.11 | 60.28 | 71.30 | a | 73.85 | 79.26 | h | 83.60 | a | 74.25 | 69.77 | c | 53.74 | a | 49.03 | 62.47 | a | |||||||
1959 | 49.23 | a | ----- | z | 57.73 | g | 64.86 | a | 65.73 | 76.72 | a | 83.08 | 80.50 | i | 72.90 | 66.77 | c | 54.58 | 46.13 | 64.45 | c | |||||
1960 | 47.00 | b | 49.93 | 57.65 | 60.17 | 67.24 | b | 80.48 | a | 84.02 | c | 79.40 | b | 75.07 | i | 63.30 | c | 51.81 | d | 43.72 | b | 62.25 | a | |||
1961 | 42.31 | 52.06 | b | 53.78 | d | 61.08 | 64.84 | c | 79.52 | 83.18 | 81.18 | 72.17 | g | 64.96 | g | 50.33 | a | 43.48 | b | 61.17 | b | |||||
1962 | 39.10 | a | 47.17 | a | 50.21 | c | 63.90 | f | 63.48 | c | 76.33 | d | 81.18 | l | 79.31 | g | 74.59 | c | 63.77 | c | 55.38 | a | 47.60 | b | 57.51 | c |
1963 | 42.71 | b | 57.02 | c | 53.45 | c | 55.81 | c | 66.13 | 72.48 | a | 77.53 | 76.98 | i | 75.75 | ----- | z | 49.37 | o | 39.92 | 60.09 | c | ||||
1964 | 43.54 | f | ----- | z | ----- | z | 58.80 | t | 62.55 | b | 71.98 | ----- | z | 78.40 | b | 70.20 | 68.14 | b | ----- | z | 48.38 | b | 66.61 | f | ||
1965 | 46.95 | a | 50.08 | b | 55.05 | 59.72 | 65.84 | b | ----- | z | 80.23 | ----- | z | ----- | z | ----- | z | 54.20 | c | 41.82 | 56.74 | d | ||||
1966 | 43.52 | e | ----- | z | 55.69 | g | 64.53 | 70.17 | b | 74.71 | i | ----- | z | 81.50 | 72.27 | h | 65.31 | 55.74 | c | 45.50 | 60.90 | e | ||||
1967 | 45.45 | 48.88 | 53.56 | d | 51.66 | b | 66.90 | 71.77 | b | 83.93 | a | 83.94 | 76.20 | 64.79 | j | 56.15 | c | ----- | z | 63.84 | b | |||||
1968 | 43.46 | d | 56.37 | b | 56.76 | j | 59.24 | m | 65.11 | d | 76.64 | h | 81.33 | j | 75.91 | i | 74.81 | i | 63.43 | h | 52.22 | g | 42.75 | k | 54.98 | i |
1969 | 43.17 | k | 49.41 | f | 53.77 | a | 59.33 | d | 69.89 | c | 72.07 | b | 80.85 | a | 80.48 | c | 77.45 | a | 60.73 | c | 53.90 | e | 45.90 | k | 67.61 | c |
1970 | 50.88 | e | 52.48 | e | 54.29 | j | 56.19 | i | 68.30 | i | 74.81 | a | 81.31 | 78.35 | e | 72.69 | c | 62.71 | c | 53.97 | a | 47.71 | e | 63.88 | c | |
1971 | 44.33 | a | 46.79 | 53.79 | 58.50 | d | 64.08 | e | 71.56 | f | 80.17 | b | 80.60 | b | 73.83 | g | 57.29 | j | 51.04 | b | 42.96 | c | 58.03 | c | ||
1972 | 40.87 | 51.76 | 59.08 | a | 59.81 | d | 69.28 | b | 75.83 | 79.02 | 77.11 | c | 70.63 | 62.58 | a | 51.34 | k | 41.47 | l | 64.60 | b | |||||
1973 | 46.17 | j | 51.84 | i | 50.10 | k | 60.57 | i | 71.97 | m | 78.19 | i | 79.63 | h | 77.89 | h | 72.05 | k | 61.80 | k | 52.68 | m | 45.25 | q | ----- | z |
1974 | 48.06 | m | 49.92 | i | 56.12 | k | 59.33 | i | 70.57 | h | 76.52 | g | 78.81 | 78.48 | 76.10 | 68.35 | h | 52.53 | l | 44.55 | c | 69.49 | h | |||
1975 | 43.52 | 50.38 | 52.71 | 55.05 | 68.45 | 74.32 | 77.35 | 76.18 | 75.31 | a | 62.52 | b | 51.50 | 44.63 | 60.99 | |||||||||||
1976 | 46.13 | 52.07 | b | 53.55 | c | 57.16 | a | 69.39 | d | 69.44 | l | 76.39 | 71.65 | 71.22 | 64.35 | 54.65 | c | 44.53 | 60.10 | a | ||||||
1977 | 42.33 | a | 51.09 | 50.47 | 61.83 | d | 61.73 | 78.15 | 79.79 | 78.82 | 73.45 | a | 66.53 | 55.13 | 50.79 | 62.51 | ||||||||||
1978 | 50.29 | 51.96 | ----- | z | ----- | z | 70.08 | g | 75.28 | 80.47 | a | 79.06 | 71.10 | 68.22 | b | 50.52 | 41.58 | 63.17 | c | |||||||
1979 | 45.65 | 48.66 | f | 56.00 | h | 59.70 | o | 69.55 | j | 76.10 | j | 79.48 | h | 76.23 | 75.72 | 66.77 | 54.68 | 48.75 | c | 61.30 | f | |||||
1980 | 49.13 | e | 54.15 | b | 52.19 | e | 58.74 | k | 65.74 | n | 70.06 | n | 79.74 | h | 76.88 | k | 72.66 | h | 64.15 | n | 55.08 | d | 47.58 | g | 52.64 | h |
1981 | 50.27 | 52.89 | 55.16 | 62.73 | 69.22 | f | 78.19 | d | 79.09 | b | 76.16 | f | 74.48 | a | 61.58 | a | 55.97 | 49.29 | b | 61.97 | b | |||||
1982 | 43.26 | b | 52.21 | 52.60 | b | 58.60 | 68.16 | 72.82 | e | 77.47 | a | 78.03 | b | 70.60 | 63.84 | 50.33 | a | 44.88 | b | 61.07 | ||||||
1983 | 44.79 | b | 52.23 | 55.18 | a | 56.87 | 68.37 | 73.59 | b | 74.80 | f | 78.02 | a | 74.45 | 66.00 | a | 53.24 | a | 50.29 | e | 61.18 | a | ||||
1984 | 46.12 | a | 50.22 | 58.43 | b | 59.17 | 71.87 | a | 74.55 | 82.90 | a | 80.57 | c | 77.76 | a | 61.12 | a | 51.96 | b | 45.78 | b | 63.37 | ||||
1985 | 42.86 | b | 50.82 | i | 50.82 | 64.85 | 66.57 | b | 76.03 | ----- | z | 75.72 | b | 67.54 | e | 61.08 | 48.04 | d | 41.48 | e | 59.50 | b | ||||
1986 | 50.06 | 52.09 | 58.38 | a | 59.75 | f | 68.13 | d | 76.67 | 79.87 | h | 80.09 | h | 74.92 | x | 67.43 | h | 54.81 | a | 45.11 | d | 57.89 | e | |||
1987 | 45.25 | a | 51.08 | b | 55.36 | c | 69.40 | j | ----- | z | 74.42 | 80.47 | o | 73.12 | a | 74.14 | e | 70.29 | b | 49.46 | b | 50.00 | m | 61.64 | d | |
1988 | 48.68 | f | 53.73 | e | 60.02 | ----- | z | 67.31 | b | 72.03 | 81.71 | 78.65 | 74.40 | d | 67.89 | 52.38 | 46.81 | g | 67.57 | c | ||||||
1989 | 44.71 | b | 46.19 | g | 57.90 | 63.77 | 65.68 | 73.02 | 75.40 | g | 73.65 | 72.03 | 63.87 | 57.98 | 45.24 | 61.78 | b | |||||||||
1990 | 49.08 | 53.07 | 63.06 | 66.23 | b | 66.45 | 75.90 | 75.56 | o | 77.52 | 73.32 | 67.08 | 52.39 | b | 39.15 | a | 62.11 | a | ||||||||
1991 | 47.35 | 54.70 | a | 52.10 | 58.28 | 66.83 | e | 70.62 | f | 79.58 | l | 76.82 | 76.32 | 69.71 | 52.70 | e | 44.82 | n | 61.65 | c | ||||||
1992 | ----- | z | 56.75 | k | 57.47 | 63.95 | b | 74.24 | 72.50 | 76.48 | 79.30 | i | 76.24 | m | 68.22 | b | 52.56 | f | 47.50 | k | 68.81 | f | ||||
1993 | 47.46 | f | 51.11 | a | 60.62 | r | 60.25 | ----- | z | ----- | z | 76.34 | 74.05 | 71.53 | o | 64.61 | 52.00 | 50.12 | r | 63.06 | f | |||||
1994 | 46.39 | m | 51.59 | l | 59.40 | k | 64.05 | k | 66.33 | k | 73.43 | h | 78.39 | l | 76.41 | h | 73.00 | k | 62.33 | k | 45.00 | r | 43.80 | p | ----- | z |
1995 | 50.83 | p | 52.54 | n | 56.25 | s | 60.75 | j | 68.92 | 73.65 | 78.11 | 76.84 | 74.07 | c | 68.40 | b | 69.26 | g | 62.19 | e | 71.74 | e | ||||
1996 | 51.96 | r | 52.03 | l | 54.40 | b | 59.98 | 68.70 | h | 75.58 | l | 82.00 | e | 81.00 | d | 73.79 | d | 63.66 | 55.38 | 51.04 | f | 67.17 | e | |||
1997 | 49.93 | a | 52.13 | e | 60.98 | 64.78 | a | 75.05 | 74.79 | a | 79.69 | 79.33 | j | 77.47 | a | 64.89 | 58.83 | 45.74 | 64.03 | a | ||||||
1998 | 49.61 | h | 50.04 | b | 54.74 | f | 59.52 | 63.71 | 71.60 | 79.24 | 81.23 | 74.17 | 62.14 | i | 53.35 | q | 41.58 | m | 68.50 | e | ||||||
1999 | 51.44 | v | 52.38 | p | 53.91 | o | 57.68 | b | ----- | z | ----- | z | 71.44 | w | 77.39 | m | ----- | z | ----- | z | ----- | z | ----- | z | 57.68 | k |
2000 | 52.96 | d | 55.74 | j | 57.54 | e | 63.97 | a | ----- | z | 76.20 | h | 76.56 | ----- | z | ----- | z | 63.84 | 48.26 | i | 47.04 | e | 60.32 | f | ||
2001 | 45.39 | m | 49.69 | d | 60.42 | m | 59.74 | g | 77.45 | i | 78.35 | j | 81.69 | 78.60 | 75.85 | c | 71.81 | r | ----- | z | ----- | z | 71.46 | h | ||
2002 | ----- | z | 52.48 | f | 54.60 | 61.60 | 67.45 | 74.13 | 80.05 | 76.61 | 74.02 | i | 63.76 | 55.20 | b | ----- | z | 66.67 | d | |||||||
2003 | 50.00 | k | 49.95 | 57.60 | 56.82 | 65.88 | a | 76.98 | 83.53 | 78.39 | 75.65 | 68.02 | 51.40 | 48.81 | 64.82 | a | ||||||||||
2004 | 45.79 | 50.44 | k | 64.53 | b | 65.22 | 69.97 | 74.68 | 79.65 | 78.10 | 73.52 | 63.27 | 50.48 | a | 45.52 | 64.61 | a | |||||||||
2005 | 46.97 | 53.70 | a | 57.22 | a | ----- | z | 68.85 | 73.97 | ----- | z | 80.77 | 71.65 | ----- | z | ----- | z | 50.05 | b | 62.90 | d | |||||
2006 | 47.79 | ----- | z | 51.84 | 62.55 | 71.97 | 79.17 | 83.75 | c | 78.34 | b | 73.91 | a | 62.08 | a | 53.64 | a | 45.35 | 64.58 | a | ||||||
2007 | 43.06 | 51.52 | 60.89 | 63.65 | 71.28 | b | 75.88 | b | 79.85 | 80.70 | a | 71.17 | 62.50 | 55.86 | a | 45.45 | 63.48 | |||||||||
2008 | 46.98 | 51.12 | a | 56.55 | 61.45 | a | 69.31 | 77.18 | 81.79 | 82.66 | 76.62 | 66.34 | 56.25 | 43.45 | a | 64.14 | ||||||||||
2009 | 46.98 | 51.33 | e | 56.05 | a | 62.22 | 74.45 | 75.17 | 84.24 | 81.18 | 79.70 | 63.65 | 53.80 | 46.37 | 64.59 | |||||||||||
2010 | 47.73 | 52.91 | 55.10 | 56.67 | g | ----- | z | 76.04 | b | 81.27 | 78.16 | 75.22 | 67.54 | c | 54.48 | e | 50.55 | 63.90 | b | |||||||
2011 | 45.13 | 49.00 | 54.71 | g | 60.08 | f | 64.97 | 74.08 | 80.39 | 79.63 | 77.98 | c | 66.56 | 52.23 | 43.63 | 63.36 | b | |||||||||
2012 | 48.27 | 52.16 | 56.13 | 62.80 | 71.31 | 75.73 | 80.20 | a | 84.32 | a | 79.23 | 67.97 | 55.24 | c | 48.05 | 65.12 | ||||||||||
2013 | 45.68 | 49.96 | 60.19 | 65.45 | 70.76 | 78.13 | 83.85 | 81.05 | 75.50 | 64.85 | 56.32 | 45.55 | 64.77 | |||||||||||||
2014 | 52.13 | 54.32 | c | 61.06 | 65.65 | 72.82 | 78.95 | 84.68 | 82.29 | 79.12 | 69.40 | a | 55.37 | 50.44 | 67.19 | |||||||||||
2015 | 47.76 | 57.38 | 63.48 | 61.59 | c | 62.43 | a | 76.14 | i | 78.05 | i | 81.69 | d | 79.00 | 68.18 | 51.15 | 46.24 | 61.89 | b | |||||||
2016 | 50.58 | 55.26 | 58.13 | 64.42 | ----- | z | 80.66 | n | 83.15 | 82.11 | 75.70 | 65.92 | 57.81 | a | 47.29 | 64.04 | b | |||||||||
2017 | 48.19 | 53.88 | 58.53 | 62.28 | 70.52 | 78.77 | 83.42 | 84.02 | 76.85 | d | 65.08 | 57.58 | 47.82 | 65.58 | ||||||||||||
2018 | 51.55 | 52.00 | 55.97 | 63.90 | 69.40 | a | 72.97 | 84.82 | 76.05 | a | 72.70 | 66.32 | 56.62 | 48.73 | 64.25 | |||||||||||
2019 | 51.08 | a | 48.75 | 55.33 | a | 65.82 | s | 66.10 | e | 79.17 | 81.61 | 82.81 | 77.23 | d | 65.04 | r | 56.47 | 49.82 | 64.84 | b | ||||||
2020 | 47.69 | 54.46 | b | 55.37 | 63.40 | 71.87 | a | 77.57 | 81.69 | 84.10 | 78.60 | 70.23 | a | 57.60 | y | 48.10 | g | 68.50 | b | |||||||
2021 | 48.47 | 52.88 | 55.56 | 66.97 | a | 72.05 | 80.68 | 86.96 | c | 80.79 | 77.95 | 63.80 | c | 55.00 | 46.43 | b | 65.63 | |||||||||
2022 | 51.33 | g | 51.91 | e | 58.97 | 63.96 | b | 67.00 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.28 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.14 | 51.59 | 55.68 | 61.23 | 68.06 | 75.11 | 81.17 | 79.20 | 74.84 | 65.35 | 53.97 | 46.50 | 63.68 | |||||||||||||
S.D. | 3.46 | 2.36 | 3.35 | 3.14 | 3.07 | 2.52 | 2.48 | 2.82 | 2.51 | 2.64 | 2.42 | 3.50 | 1.62 | |||||||||||||
SKEW | -0.37 | 0.17 | 0.56 | -0.60 | 0.10 | 0.21 | -0.17 | -0.33 | -0.36 | -0.02 | -0.11 | 1.36 | 0.17 | |||||||||||||
MAX | 52.96 | 57.38 | 64.53 | 66.97 | 75.05 | 80.68 | 86.96 | 84.32 | 79.70 | 70.29 | 58.83 | 62.19 | 67.19 | |||||||||||||
MIN | 36.07 | 46.71 | 50.21 | 51.66 | 61.73 | 69.91 | 76.34 | 71.65 | 67.54 | 59.93 | 48.04 | 39.15 | 60.99 | |||||||||||||
YRS | 59 | 56 | 61 | 59 | 61 | 59 | 54 | 60 | 60 | 58 | 58 | 57 | 19 |