YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.60 | 76.71 | 77.19 | 70.90 | a | 59.55 | 44.63 | 39.39 | 63.28 | e | ||||||
1936 | 36.84 | 42.86 | 48.13 | a | 59.07 | b | 64.52 | 74.13 | 77.58 | 75.79 | b | 67.30 | 58.53 | a | 43.90 | 38.26 | 57.24 | |||||||||
1937 | 28.68 | 38.00 | 45.03 | 53.62 | d | 65.57 | a | 72.70 | 77.30 | a | 76.84 | 69.47 | 58.13 | 47.48 | a | 43.23 | 56.34 | |||||||||
1938 | 39.00 | 42.18 | 45.84 | 54.93 | 60.32 | 71.60 | 75.65 | 75.26 | 68.93 | 55.13 | 39.50 | 38.03 | 55.53 | |||||||||||||
1939 | 37.35 | 34.86 | 47.35 | 56.30 | 64.03 | 72.73 | 77.94 | 76.84 | 67.33 | 54.23 | 44.23 | 38.35 | 55.96 | |||||||||||||
1940 | 37.45 | 41.14 | a | 48.35 | 55.80 | 66.06 | 75.30 | 78.71 | 77.03 | 66.77 | 56.29 | 43.53 | 38.71 | 57.10 | ||||||||||||
1941 | 39.23 | 44.21 | 47.13 | 48.93 | 61.23 | 67.54 | b | 76.61 | 73.90 | 66.68 | b | 54.00 | a | 48.79 | p | 37.90 | b | 56.12 | a | |||||||
1942 | 39.03 | a | 42.55 | f | 43.68 | 55.90 | 61.33 | a | 72.83 | a | 77.37 | a | 74.89 | c | 66.97 | a | 57.86 | b | 48.30 | j | 40.55 | b | 59.04 | b | ||
1943 | 38.06 | 42.61 | 49.83 | a | 57.83 | 67.55 | 73.33 | 80.17 | a | 76.48 | 72.57 | 56.58 | 40.17 | 39.94 | 57.93 | |||||||||||
1944 | 36.90 | 41.69 | 46.00 | 54.52 | a | 64.57 | a | 70.38 | a | 78.87 | ----- | z | 74.70 | 64.10 | 47.63 | 39.71 | 56.28 | a | ||||||||
1945 | 38.77 | 44.93 | 45.06 | 53.17 | a | 66.23 | 72.00 | a | 78.70 | a | 76.42 | 73.10 | 59.50 | e | ----- | z | 35.58 | 58.50 | a | |||||||
1946 | 35.29 | 36.46 | 47.52 | 56.72 | a | 64.38 | b | 74.07 | 75.81 | 74.38 | b | ----- | z | 53.68 | 42.90 | 39.32 | 54.59 | a | ||||||||
1947 | 34.00 | 42.63 | a | 50.60 | a | 55.62 | a | 64.67 | a | 71.47 | 76.48 | 72.65 | 71.97 | 59.06 | 42.73 | 37.29 | 56.60 | |||||||||
1948 | 33.45 | 38.21 | 40.90 | 56.13 | 64.65 | 71.57 | 76.77 | 73.97 | 70.33 | 58.19 | 41.17 | 38.06 | 55.28 | |||||||||||||
1949 | 32.42 | 37.76 | c | ----- | z | 62.64 | p | 63.00 | 70.77 | 79.48 | 76.12 | g | 70.63 | c | 54.26 | 45.00 | 35.94 | 54.36 | c | |||||||
1950 | 36.77 | 40.31 | l | 49.13 | 58.33 | 62.46 | c | 71.65 | g | 74.65 | 74.05 | j | 68.80 | 62.55 | 47.90 | 42.03 | 55.85 | c | ||||||||
1951 | 39.03 | 40.14 | 45.00 | 53.57 | 62.27 | a | 69.13 | 79.19 | 73.55 | 67.03 | 56.94 | 44.90 | 35.19 | 55.50 | ||||||||||||
1952 | 36.03 | 38.83 | 43.06 | 53.23 | 62.58 | 69.33 | 74.45 | 73.61 | 66.29 | f | 56.26 | 41.63 | 34.90 | 53.08 | a | |||||||||||
1953 | 37.26 | 38.82 | 46.00 | 53.67 | 57.13 | 69.67 | 75.65 | 71.39 | 66.63 | 58.68 | 47.67 | 34.26 | 54.73 | |||||||||||||
1954 | 36.52 | f | 42.71 | 45.00 | 58.90 | 66.35 | 70.37 | 77.48 | b | 73.94 | 67.40 | e | 57.00 | 45.96 | b | 35.07 | d | 58.20 | a | |||||||
1955 | 33.76 | b | 34.62 | b | 45.65 | 54.46 | b | 60.56 | d | 66.47 | 74.32 | 74.72 | b | 68.86 | b | 62.77 | 44.75 | b | 40.19 | d | 55.09 | |||||
1956 | 41.67 | a | 39.07 | a | 46.47 | a | 56.34 | a | 65.77 | 73.77 | 74.46 | g | 74.93 | c | 72.28 | l | 58.81 | d | 40.83 | a | 34.95 | l | 55.30 | c | ||
1957 | 40.73 | a | 48.56 | a | 49.90 | 54.13 | 57.34 | b | 71.87 | 75.27 | a | 70.56 | d | 68.57 | 58.37 | a | 42.90 | a | 37.57 | a | 56.31 | |||||
1958 | 37.03 | b | 44.36 | c | 44.77 | e | 53.88 | e | 64.11 | c | 73.24 | a | 76.00 | d | 69.48 | b | 61.52 | c | 49.19 | j | ----- | z | ----- | z | 58.27 | c |
1959 | ----- | z | 40.79 | d | ----- | z | 55.23 | 61.34 | b | 71.63 | c | 78.42 | 72.52 | d | 69.44 | e | 58.08 | e | ----- | z | 38.52 | h | 63.43 | d | ||
1960 | 34.87 | 39.35 | f | 50.64 | c | 58.39 | g | 64.19 | e | 76.10 | j | 80.23 | r | 80.95 | k | 69.60 | e | 55.89 | v | ----- | z | 34.60 | a | 50.78 | g | |
1961 | 35.39 | 43.21 | 45.06 | 54.13 | 63.77 | 76.37 | 79.65 | 75.03 | 66.63 | 57.32 | 44.87 | 33.03 | 56.21 | |||||||||||||
1962 | 35.29 | 39.25 | 43.26 | 59.80 | ----- | z | ----- | z | ----- | z | ----- | z | 66.00 | x | ----- | z | 44.91 | s | 38.45 | 43.21 | g | |||||
1963 | 33.10 | 46.75 | 44.68 | l | 51.29 | m | 66.39 | 70.50 | 81.06 | 74.81 | 69.10 | 64.87 | 49.03 | 32.94 | 58.85 | b | ||||||||||
1964 | 30.48 | 32.52 | ----- | z | 50.57 | ----- | z | 72.27 | ----- | z | 73.71 | ----- | z | ----- | z | ----- | z | ----- | z | 51.91 | g | |||||
1965 | ----- | z | ----- | z | 43.23 | 49.67 | 56.48 | 64.34 | a | 75.32 | 75.40 | a | 65.80 | 58.74 | ----- | z | ----- | z | 61.12 | d | ||||||
1966 | ----- | z | 37.86 | 48.84 | 55.40 | 66.16 | 72.57 | 76.97 | 77.42 | 70.73 | 58.29 | 49.47 | 39.13 | 59.35 | a | |||||||||||
1967 | 36.19 | 43.07 | 50.61 | 50.20 | 62.13 | 70.23 | 77.42 | 77.04 | d | 75.37 | 69.17 | a | 52.50 | 28.19 | 57.68 | |||||||||||
1968 | 30.61 | ----- | z | 56.27 | a | 65.00 | f | 66.81 | 90.90 | j | 82.52 | 78.61 | 79.47 | 65.03 | 44.80 | 31.14 | i | 63.01 | d | |||||||
1969 | 38.26 | 40.15 | a | 47.39 | 61.44 | c | 75.00 | 80.47 | ----- | z | 72.25 | w | 68.40 | ----- | z | ----- | z | ----- | z | 58.73 | e | |||||
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.08 | s | 48.77 | d | ----- | z | 48.77 | k |
1971 | 28.88 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.39 | 77.26 | 69.27 | 57.50 | a | 43.87 | 35.84 | 60.85 | f | |||||
1973 | 34.94 | 41.14 | 43.32 | 48.55 | a | 62.61 | 70.29 | f | 79.19 | 75.10 | 66.59 | a | ----- | z | 48.21 | a | 40.10 | 53.97 | b | |||||||
1974 | 37.23 | 38.61 | 51.35 | 53.54 | b | 65.58 | 75.67 | 77.45 | 76.23 | 72.03 | 61.84 | 46.20 | 37.68 | 57.78 | ||||||||||||
1975 | 35.24 | b | 39.64 | 43.80 | a | 44.50 | 59.48 | 70.57 | 78.10 | a | 75.61 | 69.80 | 59.39 | 46.97 | 39.06 | 55.18 | ||||||||||
1976 | 37.48 | 42.38 | 45.13 | a | 52.87 | 65.93 | a | 72.82 | b | 77.10 | 75.68 | 70.67 | 58.06 | 46.62 | a | 35.58 | 56.69 | |||||||||
1977 | 36.29 | 41.54 | 40.07 | a | 54.70 | 54.47 | a | 71.32 | b | 77.70 | a | 79.52 | d | 73.53 | 61.90 | 49.72 | a | 44.55 | b | 57.11 | ||||||
1978 | 42.13 | 43.96 | 51.32 | 54.77 | 62.52 | 75.17 | 77.87 | 76.35 | 67.14 | a | 59.81 | 46.43 | b | 32.55 | 57.50 | |||||||||||
1979 | 34.39 | 37.89 | a | ----- | z | 53.50 | 59.94 | 69.83 | a | 76.61 | 72.00 | b | 71.30 | 60.93 | a | ----- | z | 38.68 | 57.51 | b | ||||||
1980 | 42.39 | 44.45 | 46.03 | a | 54.10 | a | 59.50 | a | 71.83 | ----- | z | 75.00 | 67.20 | 53.48 | 42.47 | 38.65 | 54.10 | a | ||||||||
1981 | 38.32 | 39.64 | 44.00 | 58.83 | 62.23 | 74.63 | 77.61 | 73.71 | 66.50 | 57.10 | 49.07 | 40.71 | 56.86 | |||||||||||||
1982 | 37.40 | a | 41.46 | 47.39 | 54.70 | 62.61 | 70.59 | a | 74.26 | 72.50 | a | 68.53 | 53.96 | c | 45.83 | 38.90 | a | 55.68 | ||||||||
1983 | 37.45 | 42.79 | 48.77 | 48.13 | 59.72 | b | 71.13 | 72.35 | 70.84 | 67.20 | 55.16 | 45.48 | a | 42.20 | a | 55.10 | ||||||||||
1984 | 38.35 | 40.07 | 47.58 | 53.87 | 68.42 | 70.80 | 72.84 | 70.68 | 67.66 | a | 51.74 | 45.53 | 41.77 | a | 55.78 | |||||||||||
1985 | 37.55 | 39.36 | 47.74 | 55.87 | 64.61 | 73.07 | 75.77 | 75.33 | a | 62.43 | 56.97 | 44.33 | 35.81 | 55.74 | ||||||||||||
1986 | 38.68 | 44.21 | 48.29 | 54.29 | b | 62.90 | 72.47 | 73.58 | 74.23 | 62.53 | 51.10 | a | 42.76 | a | 35.87 | 55.08 | ||||||||||
1987 | 32.87 | 38.61 | 41.68 | 54.44 | c | 60.94 | 68.23 | 69.81 | 68.42 | 62.48 | a | 54.03 | 41.86 | a | 36.10 | 52.46 | ||||||||||
1988 | 35.93 | a | 40.48 | 47.10 | 53.31 | a | 59.48 | 69.68 | b | 76.52 | 72.19 | 64.47 | 57.58 | 45.83 | 38.47 | a | 55.09 | |||||||||
1989 | 33.35 | 40.39 | 52.03 | a | 61.83 | 65.35 | 73.57 | 78.13 | 72.84 | 68.30 | 57.84 | 46.07 | 36.81 | 57.21 | ||||||||||||
1990 | 38.03 | 39.79 | 49.42 | 57.00 | a | 63.29 | 74.83 | 77.55 | 73.58 | 68.31 | a | 57.03 | 45.37 | 33.07 | a | 56.44 | ||||||||||
1991 | 34.55 | 43.32 | 44.90 | 54.10 | 60.61 | 70.53 | 77.77 | 76.93 | a | 68.97 | a | 59.93 | a | 45.46 | b | 39.58 | 56.39 | |||||||||
1992 | 36.52 | 44.52 | 48.55 | 59.57 | 64.27 | a | 70.97 | 76.87 | 76.06 | 68.43 | 61.13 | 44.03 | 35.58 | 57.21 | ||||||||||||
1993 | 40.10 | 44.93 | 50.00 | b | 56.37 | 65.23 | 71.30 | 77.80 | a | 71.26 | ----- | z | 57.07 | b | 44.33 | c | 37.61 | 56.00 | a | |||||||
1994 | 37.00 | 40.18 | 50.57 | a | 55.30 | 62.37 | a | 75.73 | 79.52 | 78.00 | 70.20 | 55.13 | 43.17 | 39.80 | a | 57.25 | ||||||||||
1995 | 40.50 | a | 44.82 | 48.52 | 52.07 | 60.47 | a | 66.13 | 74.90 | 76.58 | 69.43 | 57.56 | d | 47.96 | c | 41.13 | a | 56.67 | ||||||||
1996 | 37.90 | a | 45.79 | a | 47.90 | b | 56.30 | 67.10 | 74.47 | 78.32 | 76.58 | 68.30 | 56.76 | b | 46.54 | b | 41.42 | 58.11 | ||||||||
1997 | 40.06 | 40.96 | 48.71 | c | 52.10 | a | 64.24 | b | 69.93 | 74.97 | 72.32 | 68.21 | a | 54.60 | a | ----- | z | 36.07 | a | 56.56 | a | |||||
1998 | 39.97 | 41.43 | 45.10 | b | 50.30 | 60.07 | b | 67.33 | 75.17 | b | 75.23 | a | 66.63 | 55.39 | 42.13 | 36.06 | 54.57 | |||||||||
1999 | 37.57 | a | 41.56 | a | 50.32 | 49.47 | 60.32 | 68.30 | 73.52 | 70.77 | 64.53 | 53.59 | b | 45.55 | a | 36.19 | 54.31 | |||||||||
2000 | 39.32 | 44.07 | 45.35 | 56.70 | 66.48 | 74.07 | a | 75.30 | a | 75.03 | a | 68.43 | 56.63 | a | 39.24 | a | 38.32 | c | 56.58 | |||||||
2001 | 36.86 | b | 40.81 | a | 46.81 | 53.00 | a | 65.59 | b | 71.93 | 74.35 | 72.16 | 67.59 | a | 59.85 | k | 48.87 | 35.77 | 55.80 | a | ||||||
2002 | 35.74 | 38.71 | 43.17 | a | 56.97 | a | 61.90 | 72.53 | 79.32 | 74.03 | 65.97 | 53.85 | e | 43.87 | 36.41 | b | 55.21 | |||||||||
2003 | 38.80 | a | 42.27 | b | 44.23 | a | 50.00 | c | 63.81 | 71.93 | 79.29 | 74.65 | 68.40 | 60.26 | d | 46.50 | b | 37.93 | a | 56.51 | ||||||
2004 | 37.77 | 38.38 | 52.00 | b | 55.33 | 64.23 | 71.53 | 73.94 | 72.26 | 66.27 | 55.58 | 43.83 | a | 37.19 | 55.69 | |||||||||||
2005 | 40.67 | a | 43.25 | 44.52 | b | 50.12 | e | 60.28 | f | 65.93 | a | 75.73 | a | 69.97 | a | 65.34 | a | 56.87 | 45.57 | 36.10 | b | 54.01 | a | |||
2006 | 38.03 | a | 41.96 | d | 44.84 | 52.90 | a | 64.03 | 71.50 | 76.52 | 70.45 | 63.60 | 54.30 | d | 43.66 | a | 34.75 | g | 56.53 | a | ||||||
2007 | 32.87 | a | 40.89 | 47.74 | 53.70 | 61.84 | 70.40 | 77.29 | 74.81 | 69.34 | a | 56.35 | 47.90 | 35.52 | 55.72 | |||||||||||
2008 | 35.71 | 38.28 | 45.17 | a | 52.57 | b | 56.39 | 68.00 | b | ----- | z | ----- | z | ----- | z | 53.25 | o | 48.37 | k | 37.70 | k | 49.35 | f | |||
2009 | 35.26 | 39.67 | a | 46.60 | a | 51.27 | 64.81 | 66.45 | a | 77.16 | 72.17 | a | 68.67 | 54.71 | 45.21 | b | 35.39 | 54.78 | ||||||||
2010 | 36.13 | 40.04 | b | 45.16 | 50.10 | 58.06 | 70.47 | 77.59 | b | 73.29 | 67.80 | 56.19 | 41.63 | 40.59 | b | 54.75 | ||||||||||
2011 | 33.10 | 36.61 | 46.13 | 53.20 | 57.19 | j | 68.50 | 75.68 | 75.06 | 66.30 | 54.58 | 44.30 | 34.65 | 53.46 | a | |||||||||||
2012 | 35.26 | 39.76 | 45.65 | 55.50 | 64.35 | 73.93 | 76.10 | 72.13 | 66.30 | 56.13 | 44.27 | 39.67 | a | 55.75 | ||||||||||||
2013 | 32.68 | 36.43 | 47.71 | 54.10 | 62.61 | 73.10 | 75.10 | 71.10 | a | 65.00 | a | 51.35 | 45.10 | 33.48 | 53.98 | |||||||||||
2014 | 34.19 | 42.89 | 49.61 | 53.83 | 61.29 | 72.37 | 78.29 | 71.23 | a | 69.27 | 58.32 | 46.62 | a | 42.35 | 56.69 | |||||||||||
2015 | 37.52 | 43.18 | 48.97 | 53.17 | 58.42 | 72.83 | 74.97 | 72.71 | 67.80 | 57.84 | 43.63 | 35.58 | 55.55 | |||||||||||||
2016 | 36.68 | 40.28 | 49.00 | 53.07 | 59.84 | 74.97 | 76.61 | 71.10 | 65.63 | 59.19 | 48.53 | 39.10 | 56.17 | |||||||||||||
2017 | 40.16 | 45.57 | 49.26 | 53.80 | 60.06 | 73.87 | 77.73 | a | 74.74 | 67.80 | 56.18 | c | 50.35 | d | 36.10 | 57.13 | ||||||||||
2018 | 38.39 | 40.93 | 45.42 | 57.90 | a | 63.00 | 72.83 | a | 76.60 | a | 74.94 | 65.83 | 54.97 | 41.60 | 36.45 | 55.74 | ||||||||||
2019 | 35.77 | 37.36 | 48.65 | 52.86 | b | 53.61 | 67.07 | 73.48 | 73.46 | e | 68.57 | 51.07 | c | 41.83 | 37.74 | 53.46 | ||||||||||
2020 | 36.16 | 38.64 | a | 47.81 | 52.68 | h | 63.65 | 70.21 | b | 75.39 | 76.68 | 67.57 | 57.45 | b | 45.60 | 33.90 | a | 55.73 | a | |||||||
2021 | 34.19 | 40.58 | b | 45.35 | e | 56.76 | a | 62.52 | 75.47 | 78.61 | 76.03 | a | 71.60 | 54.39 | 47.03 | 39.97 | 56.87 | |||||||||
2022 | 36.32 | c | 37.18 | 44.74 | 55.83 | 64.52 | d | 73.85 | c | 78.59 | b | 75.81 | 70.46 | d | 55.74 | 40.43 | 37.23 | 55.89 | ||||||||
2023 | 38.86 | c | 37.74 | a | 43.74 | 50.41 | a | 60.35 | 66.60 | 76.62 | b | 71.53 | a | 66.20 | 56.63 | a | 45.23 | 37.75 | c | 54.31 | ||||||
2024 | 37.52 | 41.79 | a | 46.46 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.65 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.70 | 40.86 | 46.91 | 54.24 | 62.77 | 71.59 | 76.82 | 74.18 | 68.27 | 57.31 | 45.09 | 37.55 | 55.97 | |||||||||||||
S.D. | 2.64 | 2.89 | 2.82 | 3.06 | 3.30 | 2.79 | 2.12 | 2.32 | 2.92 | 3.23 | 2.67 | 2.77 | 1.17 | |||||||||||||
SKEW | -0.40 | -0.09 | 0.29 | -0.19 | 0.02 | -0.10 | -0.24 | -0.21 | 0.69 | 0.84 | 0.10 | -0.21 | -0.49 | |||||||||||||
MAX | 42.39 | 48.56 | 56.27 | 61.83 | 75.00 | 80.47 | 82.52 | 79.52 | 79.47 | 69.17 | 52.50 | 44.55 | 58.11 | |||||||||||||
MIN | 28.68 | 32.52 | 40.07 | 44.50 | 53.61 | 64.34 | 69.81 | 68.42 | 61.52 | 51.07 | 39.24 | 28.19 | 52.46 | |||||||||||||
YRS | 82 | 81 | 80 | 80 | 81 | 81 | 80 | 80 | 80 | 79 | 75 | 78 | 54 |