YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.70 | u | ----- | z |
1942 | 50.61 | 47.93 | 55.71 | 62.57 | 74.32 | 83.40 | 82.45 | 77.32 | 73.73 | 64.90 | a | 62.03 | 51.77 | 65.56 | ||||||||||||
1943 | 51.16 | 55.68 | 56.77 | 70.73 | 75.03 | 79.34 | a | ----- | z | ----- | z | 68.92 | r | 68.68 | 59.73 | 47.71 | 62.76 | c | ||||||||
1944 | 48.40 | a | 53.76 | 57.77 | a | 61.67 | 73.87 | 83.21 | a | 83.00 | n | 82.37 | a | 72.97 | a | 67.03 | 54.20 | 50.33 | a | 64.14 | a | |||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.70 | 82.71 | 80.74 | 76.87 | 67.55 | 60.53 | 48.13 | a | 71.18 | e | ||||||
1946 | 42.68 | 52.96 | 58.42 | 71.17 | 73.23 | 85.03 | 81.45 | 80.10 | 76.50 | 68.39 | 55.00 | 54.68 | 66.63 | |||||||||||||
1947 | 44.16 | 53.93 | 57.81 | 64.20 | 76.45 | 83.63 | 86.35 | 80.29 | 80.53 | 71.94 | 50.77 | 47.16 | 66.44 | |||||||||||||
1948 | 50.42 | 50.41 | 52.35 | 70.57 | 75.71 | 81.00 | 82.81 | 83.16 | 78.23 | 67.16 | 54.83 | 51.97 | 66.55 | |||||||||||||
1949 | 37.55 | 48.71 | 60.16 | 63.47 | 74.55 | 82.57 | 80.10 | 78.97 | 74.80 | 64.13 | 65.17 | 48.29 | 64.87 | |||||||||||||
1950 | 51.65 | 56.82 | 61.55 | 69.57 | 75.19 | 84.27 | 78.45 | 79.39 | 73.30 | 74.39 | 64.40 | 57.94 | 68.91 | |||||||||||||
1951 | 50.17 | a | 55.18 | 56.32 | 62.93 | 75.40 | a | 84.97 | 86.39 | 80.61 | 79.53 | 69.58 | 56.13 | 48.84 | 67.17 | |||||||||||
1952 | 53.55 | 49.97 | 51.32 | 63.33 | 73.55 | 83.93 | 79.68 | 82.71 | 76.90 | 73.19 | 53.43 | 49.03 | 65.88 | |||||||||||||
1953 | 55.07 | a | 50.96 | 59.39 | 65.45 | a | 70.42 | 86.80 | 84.06 | 81.48 | 79.33 | 67.87 | 60.83 | 46.65 | 67.36 | |||||||||||
1954 | 53.00 | 58.85 | a | 56.55 | 71.37 | 73.57 | a | 83.23 | 84.52 | 79.19 | 77.77 | 68.81 | 61.60 | 53.26 | 68.48 | |||||||||||
1955 | 45.39 | 49.46 | 56.71 | 65.67 | 72.55 | 80.90 | 78.26 | 78.32 | 79.20 | 69.00 | 58.27 | 53.71 | 65.62 | |||||||||||||
1956 | 52.87 | 45.24 | 61.23 | 63.53 | 78.94 | 84.23 | 80.87 | 79.13 | 81.77 | 70.29 | 55.67 | 50.77 | 67.04 | |||||||||||||
1957 | 49.35 | 57.75 | 55.58 | 63.77 | 68.65 | 82.40 | 83.55 | 77.90 | 76.40 | 61.42 | 49.63 | 53.19 | 64.97 | |||||||||||||
1958 | 44.55 | 51.96 | 48.65 | 61.57 | 74.90 | 84.23 | 85.16 | 83.94 | 72.70 | 62.00 | 57.93 | 56.06 | 65.30 | |||||||||||||
1959 | 51.84 | 50.14 | 57.29 | 65.90 | 74.06 | 83.63 | 81.55 | 79.29 | 79.13 | 68.45 | 58.33 | 50.00 | 66.64 | |||||||||||||
1960 | 45.55 | 45.79 | 63.74 | 71.80 | 76.42 | 84.37 | 80.10 | 83.35 | 78.40 | 67.06 | 59.70 | 44.52 | 66.73 | |||||||||||||
1961 | 49.03 | 52.07 | 57.68 | 67.00 | 76.06 | 81.83 | a | 82.00 | 78.32 | 72.87 | 68.19 | 51.66 | a | 47.35 | 65.34 | |||||||||||
1962 | 44.87 | 55.68 | 52.52 | 67.57 | 76.10 | 80.57 | 77.29 | 83.13 | 74.50 | 67.19 | 58.57 | 50.77 | 65.73 | |||||||||||||
1963 | 46.23 | 54.21 | 58.84 | 67.80 | 78.55 | 83.47 | 83.94 | 76.61 | 75.37 | 70.81 | 59.03 | 52.58 | 67.29 | |||||||||||||
1964 | 46.81 | 44.86 | 54.45 | 64.33 | 74.68 | 82.93 | 83.19 | 82.23 | 73.33 | 70.42 | 56.97 | 48.87 | 65.26 | |||||||||||||
1965 | 52.61 | 48.14 | 53.03 | 66.17 | 72.03 | 79.17 | 80.97 | 77.74 | 73.93 | 69.23 | 61.63 | 51.06 | 65.48 | |||||||||||||
1966 | 44.52 | 45.64 | 59.71 | 65.90 | 74.00 | a | 79.63 | 85.10 | 78.77 | 74.87 | 68.97 | 62.57 | 50.61 | 65.86 | ||||||||||||
1967 | 52.32 | 54.50 | 65.00 | 68.67 | 75.13 | 79.73 | 82.42 | 76.58 | 73.10 | 69.77 | 60.50 | 44.43 | a | 66.85 | ||||||||||||
1968 | 47.55 | 53.28 | 53.48 | 60.67 | 71.90 | 80.88 | d | 77.29 | 77.21 | b | 74.70 | c | 70.06 | 53.53 | 48.90 | a | 64.12 | |||||||||
1969 | 53.16 | 50.50 | 51.74 | 66.97 | 73.68 | 79.40 | 82.23 | 80.94 | 73.73 | 63.53 | a | 55.57 | 50.42 | 65.16 | ||||||||||||
1970 | 50.16 | 53.54 | 51.55 | 62.83 | 74.03 | 77.27 | 80.35 | 80.39 | 75.33 | 61.71 | 59.80 | 53.94 | 65.07 | |||||||||||||
1971 | 52.61 | 51.14 | 60.71 | 63.60 | 70.71 | 81.80 | 81.77 | 73.87 | 74.41 | a | 63.55 | 56.50 | 47.81 | 64.87 | ||||||||||||
1972 | 52.94 | 54.45 | 65.10 | 67.37 | 72.33 | a | 78.10 | a | 78.77 | 75.33 | a | 72.31 | a | 65.03 | a | 50.80 | 50.10 | 65.22 | ||||||||
1973 | 47.68 | 47.43 | 50.97 | 59.27 | 69.77 | a | 79.63 | 78.68 | 79.70 | a | 75.20 | 69.74 | 62.20 | 52.84 | 64.42 | |||||||||||
1974 | 50.33 | a | 51.75 | 62.68 | 64.97 | 76.61 | 83.67 | 77.74 | 77.33 | a | 71.57 | 63.65 | 56.47 | 45.84 | 65.22 | |||||||||||
1975 | ----- | z | ----- | z | 56.13 | a | 61.72 | a | 69.77 | a | 82.07 | a | 77.06 | ----- | z | 71.47 | 69.35 | 58.87 | 53.58 | 66.67 | c | |||||
1976 | 52.00 | 57.33 | b | 58.03 | b | 64.03 | a | 70.26 | 80.36 | b | 77.30 | a | 78.39 | 72.67 | 62.58 | 55.13 | 51.13 | a | 64.93 | |||||||
1977 | 47.13 | a | 52.96 | 54.77 | 64.47 | 73.00 | 82.39 | b | 80.10 | 80.37 | a | 78.29 | b | 68.80 | a | 60.32 | b | 56.69 | b | 66.61 | ||||||
1978 | 48.97 | a | 49.12 | c | 59.32 | 67.79 | a | 72.68 | ----- | z | 82.28 | b | 78.59 | b | 71.50 | 69.69 | b | 54.93 | a | 49.31 | b | 64.02 | a | |||
1979 | 43.90 | 50.96 | 57.19 | 66.37 | 69.45 | 78.93 | 82.03 | 78.00 | 74.24 | a | ----- | z | 52.43 | 53.84 | 64.31 | a | ||||||||||
1980 | 51.52 | 54.24 | 55.42 | 62.90 | 69.83 | a | 88.10 | 85.45 | 79.87 | 74.47 | 64.42 | 56.20 | 58.97 | a | 66.78 | |||||||||||
1981 | 50.52 | 56.00 | ----- | z | ----- | z | 73.97 | a | 83.71 | b | 82.45 | 77.55 | 74.80 | 65.23 | 62.90 | 56.00 | 68.31 | b | ||||||||
1982 | 50.37 | l | 52.78 | e | 58.54 | g | 65.32 | e | 70.66 | b | 81.54 | b | 81.97 | a | 78.93 | a | 73.72 | a | 65.33 | a | 53.26 | g | 46.27 | e | 68.50 | c |
1983 | 49.50 | c | 50.37 | a | 55.52 | d | 57.48 | c | 70.00 | b | 80.56 | c | 81.48 | 80.11 | c | 77.93 | 66.00 | 56.07 | 50.97 | 64.67 | ||||||
1984 | 51.00 | a | 53.95 | g | 59.00 | h | 64.76 | i | 77.80 | f | 77.88 | f | 77.24 | f | 75.40 | a | 75.81 | d | 59.58 | e | 57.08 | e | 52.38 | b | 61.87 | f |
1985 | 47.70 | h | 49.61 | 56.97 | 67.17 | 74.06 | 80.70 | 82.45 | 81.74 | 74.87 | 65.81 | 57.70 | 54.00 | 67.73 | a | |||||||||||
1986 | 57.42 | 54.21 | 60.10 | 68.37 | 73.62 | b | 76.53 | 79.48 | 78.90 | 73.77 | 63.74 | 54.67 | 46.97 | 65.65 | ||||||||||||
1987 | 48.68 | 49.71 | 54.74 | 63.93 | 67.97 | 72.50 | t | ----- | z | 77.24 | b | 73.17 | a | 70.52 | b | 55.53 | 48.71 | 61.02 | b | |||||||
1988 | 48.16 | 54.07 | 59.26 | 65.67 | 73.45 | 80.80 | 78.48 | 74.65 | 73.90 | 70.26 | 58.27 | 48.13 | 65.42 | |||||||||||||
1989 | 49.42 | 53.86 | 63.58 | 72.38 | a | 77.45 | 83.40 | 81.00 | 77.58 | 74.90 | 69.35 | 58.60 | 49.23 | 67.56 | ||||||||||||
1990 | 50.23 | 50.11 | 57.97 | 66.41 | a | 71.68 | 87.47 | 77.06 | 76.32 | 72.60 | 68.48 | 59.67 | 49.57 | a | 65.63 | |||||||||||
1991 | 47.58 | 53.82 | 55.52 | 66.26 | c | 74.68 | 80.57 | 75.48 | 75.42 | 71.17 | 68.87 | 53.30 | 45.84 | 64.04 | ||||||||||||
1992 | 43.61 | 49.21 | a | 57.42 | 67.40 | 67.84 | 79.33 | 80.35 | 79.39 | 77.67 | 69.74 | 51.17 | 46.65 | 64.15 | ||||||||||||
1993 | 49.00 | 50.93 | 58.39 | 66.76 | a | ----- | z | ----- | z | ----- | z | ----- | z | 74.50 | b | 63.90 | a | 52.96 | d | 48.17 | a | 58.08 | d | |||
1994 | 48.67 | a | 50.11 | 57.78 | d | 65.48 | c | 72.16 | f | 84.93 | c | 82.52 | d | 82.96 | d | 75.03 | a | 64.83 | h | 54.58 | f | 50.04 | c | 66.39 | c | |
1995 | 47.11 | c | 55.24 | c | 57.65 | e | 64.16 | e | 72.88 | g | 80.65 | d | 82.97 | 80.73 | a | 74.71 | f | 69.50 | a | 59.33 | c | 49.89 | c | 64.72 | b | |
1996 | 50.14 | i | 57.32 | g | 57.39 | c | 68.22 | g | 81.54 | e | 83.96 | b | 79.11 | m | 77.43 | c | 72.08 | e | 65.96 | f | 56.72 | e | 50.14 | b | 68.47 | e |
1997 | 43.85 | e | 48.74 | e | 61.19 | e | 60.88 | e | 73.56 | f | 81.22 | c | 81.38 | b | 80.36 | c | 78.17 | f | 64.92 | g | 54.29 | b | 44.14 | i | 63.99 | d |
1998 | 49.28 | b | 46.12 | d | 54.56 | f | 62.04 | g | 76.92 | e | 85.56 | e | ----- | z | 80.00 | e | 78.71 | b | 65.73 | e | ----- | z | 51.57 | c | 66.74 | d |
1999 | 53.08 | g | 57.76 | c | ----- | z | 64.31 | d | 75.68 | c | ----- | z | 79.34 | b | 79.72 | b | 74.96 | c | 69.13 | h | 62.43 | b | 45.28 | b | 67.44 | d |
2000 | 54.18 | c | 57.81 | c | 60.40 | f | 71.59 | h | 80.93 | d | 78.93 | c | 83.04 | d | 80.87 | a | 79.97 | a | 62.68 | c | 47.00 | a | 49.74 | 67.51 | b | |
2001 | 44.17 | a | 51.13 | e | 56.55 | b | 67.96 | d | 76.30 | d | 81.38 | f | 82.10 | b | 78.48 | b | 75.59 | c | 69.16 | 54.07 | a | 48.69 | b | 64.02 | a | |
2002 | 49.50 | a | 50.43 | 58.43 | a | 68.00 | s | 76.00 | p | 84.54 | b | 79.48 | 80.80 | a | 73.23 | 63.23 | 54.28 | a | 46.82 | c | 64.07 | b | ||||
2003 | 55.76 | b | 48.04 | 55.19 | 64.71 | b | 77.22 | h | 81.03 | 86.18 | c | 81.24 | f | 76.33 | i | 70.07 | c | 58.46 | b | 52.70 | d | 63.57 | c | |||
2004 | 49.79 | c | 46.96 | b | 60.62 | b | 59.83 | 73.50 | a | 80.33 | c | 80.66 | b | 75.33 | a | 71.89 | c | 63.44 | d | 50.45 | a | 49.87 | 63.56 | |||
2005 | 53.37 | a | 47.07 | 54.97 | b | 63.00 | e | 67.67 | j | 87.00 | w | 85.41 | b | 77.17 | b | 77.77 | 66.29 | 59.67 | 53.53 | a | 63.82 | b | ||||
2006 | 53.28 | b | 56.25 | 57.93 | b | 69.61 | b | 77.86 | c | 81.77 | 81.06 | 74.29 | 70.21 | a | 64.68 | 58.37 | 48.54 | c | 66.15 | |||||||
2007 | 44.57 | c | 51.23 | b | 58.86 | b | 63.33 | 68.55 | b | 79.46 | b | 78.33 | a | 79.42 | 74.70 | 69.23 | 60.53 | 48.29 | 64.71 | |||||||
2008 | 45.32 | 53.96 | a | 58.90 | a | 65.92 | e | 72.55 | 83.63 | 77.43 | a | 76.68 | 71.55 | a | 68.29 | c | 58.13 | 51.97 | 65.36 | |||||||
2009 | 54.63 | a | 56.62 | b | 60.80 | a | 65.27 | 75.93 | b | 79.25 | b | 83.60 | a | 82.00 | 74.19 | d | 67.32 | c | 61.40 | 45.71 | 67.23 | |||||
2010 | 49.90 | a | 49.39 | 56.61 | c | 65.82 | b | 74.30 | d | 85.07 | 80.55 | 81.27 | a | 80.10 | a | 69.87 | 57.57 | b | 58.16 | 67.38 | ||||||
2011 | 53.03 | a | 51.60 | h | 66.17 | a | 72.03 | a | 75.17 | a | 88.42 | k | 86.41 | b | 85.23 | a | 78.69 | a | 66.03 | 54.63 | 40.90 | 67.83 | b | |||
2012 | 51.26 | 48.00 | a | 60.13 | a | 68.53 | 71.48 | 84.77 | 78.73 | a | 80.58 | 73.86 | a | 68.32 | 60.03 | 49.29 | 66.25 | |||||||||
2013 | 44.77 | a | 47.57 | 59.32 | 64.37 | 72.29 | 83.63 | 77.19 | 78.32 | 71.23 | 63.87 | 52.47 | 46.50 | a | 63.46 | |||||||||||
2014 | 49.84 | 54.43 | 57.06 | 62.27 | 70.45 | 83.60 | 80.14 | b | 74.65 | 69.83 | 66.90 | b | 53.57 | 49.14 | c | 64.32 | ||||||||||
2015 | 45.30 | a | 53.78 | e | 59.27 | e | 62.07 | a | 66.55 | 79.40 | 78.00 | q | 79.38 | g | 77.57 | 63.52 | 55.38 | i | 47.34 | b | 61.64 | c | ||||
2016 | 44.89 | c | 55.18 | a | 60.40 | a | 61.87 | 68.10 | 81.56 | c | 86.77 | a | 74.61 | 73.63 | 71.65 | 54.37 | 51.57 | a | 65.38 | |||||||
2017 | 46.26 | d | 56.11 | 63.90 | 65.28 | a | 70.39 | 81.60 | 80.67 | d | 76.67 | a | 75.90 | a | 66.67 | a | 64.17 | ----- | z | 67.96 | a | |||||
2018 | 50.36 | i | ----- | z | 58.52 | 67.20 | 76.23 | 83.17 | 80.13 | 78.94 | 73.33 | 59.16 | 52.83 | 46.26 | 67.58 | b | ||||||||||
2019 | 46.35 | 48.29 | n | 54.14 | j | 63.77 | 67.52 | 78.04 | e | ----- | z | 81.90 | 76.33 | 63.45 | 55.03 | 49.67 | a | 64.67 | c | |||||||
2020 | 48.81 | 49.36 | a | 57.61 | 65.17 | 76.13 | 82.60 | 84.19 | 84.42 | 75.21 | a | 68.52 | 58.67 | 46.94 | 66.47 | |||||||||||
2021 | 46.29 | 48.50 | 56.06 | 61.50 | 72.16 | 80.93 | 76.74 | 76.19 | 75.20 | 67.23 | 60.33 | 53.97 | 64.59 | |||||||||||||
2022 | 48.48 | 47.43 | 55.87 | 67.67 | 76.84 | 78.40 | 81.77 | 75.84 | 74.57 | 60.00 | 49.73 | 48.74 | 63.78 | |||||||||||||
2023 | 46.94 | 48.86 | 54.87 | 63.93 | 72.10 | 80.97 | 87.03 | 81.61 | 78.20 | 68.06 | 55.73 | 50.93 | a | 65.77 | ||||||||||||
2024 | 46.32 | 52.29 | a | 54.19 | 62.32 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.93 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 48.94 | 51.72 | 57.62 | 65.37 | 73.45 | 81.98 | 81.35 | 79.11 | 75.11 | 66.99 | 56.97 | 50.10 | 65.74 | |||||||||||||
S.D. | 3.60 | 3.45 | 3.42 | 3.10 | 3.13 | 2.39 | 2.78 | 2.58 | 2.63 | 3.19 | 3.83 | 3.36 | 1.20 | |||||||||||||
SKEW | -0.22 | 0.03 | 0.08 | 0.19 | 0.01 | 0.13 | 0.13 | 0.07 | 0.39 | -0.38 | -0.15 | 0.35 | 0.34 | |||||||||||||
MAX | 57.42 | 58.85 | 66.17 | 72.38 | 81.54 | 88.10 | 87.03 | 85.23 | 81.77 | 74.39 | 65.17 | 58.97 | 68.91 | |||||||||||||
MIN | 37.55 | 44.86 | 48.65 | 57.48 | 66.55 | 76.53 | 75.48 | 73.87 | 69.83 | 59.16 | 47.00 | 40.90 | 63.46 | |||||||||||||
YRS | 76 | 76 | 75 | 75 | 73 | 74 | 73 | 77 | 78 | 77 | 78 | 80 | 54 |