YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.55 | 53.83 | 45.94 | 54.77 | i | |||
1938 | 42.71 | 39.30 | a | 45.87 | a | 58.47 | 63.39 | 76.50 | 83.03 | 83.39 | 77.17 | 59.40 | a | 45.22 | l | 42.52 | 61.07 | a | ||||||||
1939 | 40.29 | 33.71 | 47.10 | 61.11 | c | 67.10 | 74.60 | 85.87 | 84.45 | 71.57 | 59.74 | 53.27 | 49.55 | 60.70 | ||||||||||||
1940 | 41.90 | 43.03 | 51.65 | 57.37 | 73.32 | 82.03 | 87.19 | 87.32 | 70.40 | 62.90 | 46.30 | 43.81 | 62.27 | |||||||||||||
1941 | 41.68 | 44.00 | a | 48.42 | 50.57 | 69.61 | 76.57 | 85.45 | 79.39 | 69.20 | 54.48 | 51.53 | 40.52 | 59.28 | ||||||||||||
1942 | 39.03 | a | 37.43 | 48.48 | 60.37 | 65.32 | 79.10 | 89.84 | 85.16 | 76.90 | 61.87 | a | 55.47 | 49.06 | 62.34 | |||||||||||
1943 | 41.45 | 45.44 | a | 49.16 | 61.55 | a | 65.97 | 72.00 | 86.10 | 83.71 | 77.83 | 62.87 | 52.62 | a | 43.15 | d | 61.82 | |||||||||
1944 | 35.74 | 36.69 | 45.29 | 51.43 | 69.00 | 72.77 | ----- | z | ----- | z | ----- | z | 64.00 | x | 44.63 | c | 42.10 | 49.71 | d | |||||||
1945 | 43.45 | 44.12 | d | 47.86 | x | ----- | z | 66.50 | g | 70.03 | 85.35 | 80.77 | 73.14 | a | 62.52 | 50.33 | 41.06 | 61.20 | c | |||||||
1946 | 42.00 | 44.27 | b | 50.90 | 61.43 | 64.77 | 79.63 | 85.94 | 84.81 | 75.57 | 53.87 | 45.68 | e | 45.13 | 61.17 | |||||||||||
1947 | 39.13 | a | 50.00 | 53.32 | 56.03 | 70.48 | 74.07 | 86.84 | 82.23 | 77.87 | 64.32 | 44.33 | 42.80 | f | 63.51 | a | ||||||||||
1948 | 44.97 | a | 41.21 | a | 41.07 | a | 56.90 | 67.58 | 75.00 | b | 86.74 | 84.52 | 77.76 | a | 64.36 | c | 46.79 | a | 41.21 | b | 60.68 | |||||
1949 | 27.86 | j | ----- | z | 47.30 | h | 63.54 | f | 65.32 | f | 76.19 | c | 85.20 | a | 85.00 | b | 78.13 | 58.91 | i | ----- | z | ----- | z | 81.13 | h | |
1950 | ----- | z | ----- | z | 51.00 | u | 62.43 | b | 64.48 | 78.34 | a | 84.17 | a | ----- | z | 73.73 | 72.05 | l | 57.71 | b | 50.11 | d | 67.28 | e | ||
1951 | 43.00 | 50.07 | 48.58 | 61.17 | 58.91 | i | 75.47 | o | 83.75 | o | 83.10 | 80.70 | 62.35 | 48.57 | 38.52 | 57.34 | c | |||||||||
1952 | 37.77 | 42.07 | 40.00 | 57.00 | 68.26 | 76.13 | 84.81 | 85.74 | 76.67 | 71.39 | 44.27 | 41.71 | 60.48 | |||||||||||||
1953 | 50.77 | 46.50 | 52.68 | 57.30 | 59.77 | 77.63 | 88.06 | 83.40 | a | 80.63 | 62.26 | 53.28 | a | 42.97 | a | 62.94 | ||||||||||
1954 | 44.19 | 50.79 | 45.65 | 63.07 | 72.35 | 75.97 | 87.32 | 82.39 | 75.27 | 64.81 | 54.70 | 43.06 | 63.30 | |||||||||||||
1955 | 37.06 | 38.71 | 48.00 | 55.10 | 65.94 | 76.27 | 84.00 | 84.32 | 77.13 | 66.10 | 50.33 | 45.81 | 60.73 | |||||||||||||
1956 | 45.45 | 39.34 | 53.47 | a | 57.27 | 67.74 | 81.67 | 86.19 | 83.65 | 80.83 | 62.68 | 50.57 | 45.61 | 62.87 | ||||||||||||
1957 | 37.77 | 49.32 | 50.23 | 56.27 | 62.81 | 78.47 | 86.00 | 85.29 | 77.73 | 57.84 | 43.27 | 46.19 | 60.93 | |||||||||||||
1958 | 43.35 | 48.57 | 43.47 | a | 53.90 | 73.29 | 80.43 | 86.45 | 86.13 | 75.90 | 66.13 | 50.50 | 49.32 | 63.12 | ||||||||||||
1959 | 42.93 | a | 40.43 | 51.13 | 61.77 | 62.77 | 81.80 | 88.65 | 82.97 | 71.13 | 63.68 | 52.00 | 41.74 | 61.75 | ||||||||||||
1960 | 34.81 | 37.66 | 53.65 | 59.93 | 67.84 | 81.63 | 88.00 | 85.00 | 79.17 | a | 61.03 | 47.30 | 42.71 | 61.56 | ||||||||||||
1961 | 45.26 | 44.46 | 47.26 | 57.57 | 67.61 | 82.37 | 87.87 | 82.32 | 70.43 | 58.94 | 44.40 | 38.52 | 60.58 | |||||||||||||
1962 | 39.48 | 42.11 | 42.47 | a | 64.93 | a | 63.80 | a | 76.07 | 82.45 | 83.48 | 77.03 | 63.39 | 53.69 | a | 44.60 | a | 61.13 | ||||||||
1963 | 38.71 | 49.14 | 45.68 | 50.68 | b | 69.45 | 68.50 | 85.55 | 81.81 | 75.03 | 65.45 | 49.10 | 42.81 | 60.16 | ||||||||||||
1964 | 38.27 | a | 38.72 | 42.58 | 52.53 | 62.48 | 72.33 | 87.10 | 82.71 | 73.43 | 67.74 | 45.77 | 41.03 | 58.73 | ||||||||||||
1965 | 41.87 | a | 44.54 | 46.23 | a | 55.21 | a | 61.16 | 71.90 | 81.83 | a | 78.03 | a | 65.73 | 65.74 | 50.77 | 40.74 | 58.65 | ||||||||
1966 | 37.77 | 37.36 | 51.65 | 60.55 | a | 72.10 | 78.07 | 87.03 | 83.77 | 74.37 | 62.13 | 51.48 | a | 39.00 | 61.27 | |||||||||||
1967 | 42.26 | 46.29 | 51.39 | 46.90 | 61.65 | 68.00 | 85.00 | 84.55 | 73.07 | 64.77 | 52.93 | 36.52 | 59.44 | |||||||||||||
1968 | 40.58 | 45.48 | 50.52 | 51.90 | 66.50 | a | 78.30 | 84.10 | 75.61 | 72.83 | 60.77 | 47.33 | 39.16 | 59.42 | ||||||||||||
1969 | 43.23 | 38.86 | 44.58 | 56.83 | 72.45 | 70.83 | a | 84.47 | a | 86.45 | 77.60 | 53.58 | 47.77 | 42.90 | 59.96 | |||||||||||
1970 | 41.55 | 47.89 | 46.68 | 50.63 | 67.94 | 75.10 | 83.68 | 85.74 | 72.14 | a | 59.35 | 49.10 | 38.35 | 59.85 | ||||||||||||
1971 | 42.07 | a | 42.18 | 49.55 | 55.13 | 60.77 | 76.53 | 84.45 | 81.42 | 70.83 | 55.87 | a | 44.63 | 34.26 | 58.14 | |||||||||||
1972 | 39.81 | 46.59 | 56.68 | 56.13 | 68.37 | a | 76.28 | a | 86.37 | a | 81.29 | 70.90 | 55.87 | 42.21 | a | 35.03 | 59.63 | |||||||||
1973 | 36.13 | a | 39.00 | 40.52 | 52.37 | 69.52 | 78.14 | a | 83.42 | 82.96 | d | 73.24 | a | 63.84 | 48.07 | 43.57 | a | 59.23 | ||||||||
1974 | 39.13 | 42.78 | a | 52.94 | 56.72 | a | 72.03 | a | 83.86 | a | 85.29 | 84.00 | a | 77.59 | a | 58.37 | a | 48.75 | b | 36.32 | 61.48 | |||||
1975 | 41.47 | a | 39.81 | a | 42.77 | 45.69 | a | 62.81 | 73.23 | 84.07 | a | 81.35 | 75.47 | 61.13 | 46.50 | 43.26 | 58.13 | |||||||||
1976 | 41.65 | 45.55 | 44.87 | 54.93 | 70.52 | 78.03 | 86.87 | 80.74 | 71.73 | 58.84 | 51.90 | 43.87 | 60.79 | |||||||||||||
1977 | 37.81 | 48.04 | 45.26 | 62.07 | 60.32 | 81.37 | 85.32 | 81.58 | 75.30 | 64.77 | 53.57 | 46.74 | 61.85 | |||||||||||||
1978 | 40.39 | 43.31 | b | 52.65 | 54.23 | 65.16 | 78.60 | 87.13 | a | 82.72 | b | 72.10 | 66.45 | 42.63 | 35.50 | a | 60.07 | |||||||||
1979 | 31.68 | 40.25 | 46.65 | 57.17 | 66.52 | 78.33 | 86.19 | 81.23 | 79.67 | 64.68 | 42.77 | 46.68 | 60.15 | |||||||||||||
1980 | 40.32 | 45.07 | 44.84 | 57.67 | 60.06 | 76.30 | 85.74 | 83.65 | 72.60 | 61.42 | 51.43 | 49.16 | 60.69 | |||||||||||||
1981 | 41.74 | 45.61 | 46.48 | 60.43 | 64.16 | 82.13 | 87.61 | 86.77 | 75.93 | a | 55.48 | 51.80 | 47.27 | a | 62.12 | |||||||||||
1982 | 39.86 | b | 43.11 | 46.00 | a | 55.17 | a | 64.93 | a | 74.25 | b | 82.74 | 83.57 | a | 68.52 | a | 55.55 | b | 43.31 | a | 38.29 | 57.94 | ||||
1983 | 43.26 | 43.71 | 47.80 | a | 48.50 | 64.00 | 74.64 | b | 83.63 | a | 78.59 | b | 74.97 | 62.65 | 48.23 | 39.74 | 59.14 | |||||||||
1984 | 37.97 | 42.72 | 47.48 | 54.97 | 72.52 | 75.33 | 83.55 | b | 81.28 | b | 76.20 | 54.00 | 46.90 | 37.67 | a | 59.22 | ||||||||||
1985 | 35.55 | 40.46 | 46.97 | a | 63.03 | 67.94 | 81.79 | a | 84.97 | 84.61 | 69.83 | 61.24 | b | 44.13 | 43.60 | a | 60.34 | |||||||||
1986 | 47.73 | a | 46.18 | 55.32 | 57.97 | 69.27 | a | 83.04 | c | 83.97 | a | 86.17 | a | 67.47 | 57.52 | 50.30 | 41.28 | b | 62.18 | |||||||
1987 | 37.60 | a | 40.75 | 46.83 | a | ----- | z | ----- | z | ----- | z | ----- | z | 82.63 | a | 75.15 | c | 65.39 | 44.57 | 37.77 | a | 53.84 | d | |||
1988 | 37.58 | 44.90 | 50.55 | 59.87 | 67.10 | 81.53 | 88.45 | 82.53 | a | 73.63 | 68.29 | 47.60 | 37.06 | 61.59 | ||||||||||||
1989 | 37.42 | 36.79 | 55.84 | 65.55 | a | 68.10 | 75.80 | 88.52 | 81.55 | 73.55 | a | 62.10 | 51.83 | 43.87 | 61.74 | |||||||||||
1990 | 43.19 | 38.68 | 51.06 | 61.52 | a | 65.97 | a | 79.55 | a | 86.03 | a | 82.52 | 77.47 | 64.13 | 49.63 | 34.06 | 61.15 | |||||||||
1991 | 39.32 | 51.14 | 45.90 | 57.23 | 62.13 | 75.33 | 85.71 | 83.71 | 72.53 | 63.97 | 46.53 | 40.23 | 60.31 | |||||||||||||
1992 | 40.87 | 45.07 | 50.77 | 66.03 | 73.29 | ----- | z | 82.71 | 85.10 | a | 76.73 | 66.00 | 43.17 | 37.19 | 60.63 | a | ||||||||||
1993 | 36.77 | 36.61 | 50.87 | 59.50 | 70.65 | 74.90 | 84.17 | a | 81.84 | 75.83 | 60.10 | 45.34 | a | 39.71 | 59.69 | |||||||||||
1994 | 44.77 | 41.50 | 54.10 | 58.43 | 70.10 | 84.10 | a | 88.77 | 86.67 | a | 76.37 | 59.19 | 41.59 | a | 40.29 | 62.16 | ||||||||||
1995 | 38.74 | 52.50 | 49.06 | 56.03 | a | 60.55 | 70.83 | 84.03 | 85.42 | 79.96 | f | 66.75 | c | 58.79 | f | 52.24 | n | 62.66 | c | |||||||
1996 | 45.59 | d | 47.17 | 51.97 | 61.30 | 69.29 | 82.04 | b | 87.71 | c | 86.43 | c | 73.83 | 62.93 | b | 50.60 | 44.97 | 63.65 | ||||||||
1997 | ----- | z | 40.22 | a | 58.41 | b | 54.27 | 72.59 | d | 75.21 | a | 82.81 | 84.16 | ----- | z | ----- | z | ----- | z | ----- | z | 66.81 | e | |||
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.43 | a | 71.93 | 56.68 | 49.83 | a | 40.32 | 60.84 | g | |||
1999 | 44.77 | a | 45.64 | 53.90 | 49.33 | 64.39 | 76.52 | a | 84.35 | 80.84 | 72.40 | 68.29 | 59.17 | a | 43.20 | a | 61.90 | |||||||||
2000 | 44.16 | 45.62 | 49.26 | 62.21 | a | 70.65 | 80.23 | 87.93 | a | 85.19 | 74.20 | 57.90 | a | 38.69 | a | 43.80 | a | 61.65 | ||||||||
2001 | 37.94 | 39.96 | 50.48 | 54.17 | 72.21 | b | 79.70 | 84.77 | 85.83 | a | 79.36 | b | 66.97 | 49.69 | a | 38.35 | 61.62 | |||||||||
2002 | 40.26 | 41.57 | 46.87 | 60.31 | a | 67.30 | a | 81.37 | 88.81 | 84.48 | 73.97 | 57.48 | 45.93 | 40.45 | 60.73 | |||||||||||
2003 | 48.61 | 39.36 | 49.47 | a | 53.17 | 65.37 | a | 78.80 | 91.03 | 85.90 | 75.23 | 69.84 | 41.43 | 41.40 | a | 61.63 | ||||||||||
2004 | 38.03 | b | 36.14 | 55.03 | b | 57.55 | a | 69.23 | a | 79.13 | 84.06 | 79.50 | c | 72.07 | b | 57.03 | a | 42.62 | a | 41.66 | b | 59.34 | ||||
2005 | 41.03 | a | 39.18 | 47.71 | 53.10 | 63.63 | a | 71.21 | a | 88.65 | 81.13 | a | 72.28 | a | 60.63 | a | 52.63 | 43.46 | c | 59.55 | ||||||
2006 | 43.46 | e | 41.52 | a | 42.73 | a | 56.73 | 69.16 | 81.83 | 87.00 | 83.40 | a | 71.07 | c | 57.42 | 50.57 | 40.90 | 60.48 | ||||||||
2007 | 34.65 | 42.85 | a | 52.87 | a | 58.72 | e | 69.53 | a | 81.67 | 89.77 | 84.96 | d | 71.77 | d | 58.68 | i | 52.46 | d | 36.03 | 61.39 | a | ||||
2008 | 34.03 | b | 39.97 | 46.82 | c | 53.71 | b | 61.55 | b | 77.00 | b | 86.17 | a | 83.77 | a | 73.03 | a | 61.33 | a | 52.07 | a | 40.62 | e | 59.17 | ||
2009 | 43.56 | d | 41.11 | 48.00 | 51.93 | 68.19 | d | 69.14 | b | 84.30 | k | 81.35 | 75.59 | a | 55.73 | e | 50.18 | b | 32.93 | a | 56.16 | a | ||||
2010 | 38.86 | b | 37.68 | 45.97 | a | 52.04 | b | 57.48 | 75.33 | c | 84.54 | c | 82.86 | c | 76.92 | d | 59.06 | 43.74 | c | 41.53 | a | 58.00 | ||||
2011 | 39.07 | a | 36.64 | 46.48 | 52.00 | a | 57.21 | b | 72.04 | d | 82.38 | b | 84.71 | 74.82 | b | 60.23 | a | 45.43 | b | 37.80 | a | 57.40 | ||||
2012 | 43.14 | b | 39.45 | 50.67 | a | 59.89 | b | 67.00 | 79.28 | a | 84.97 | a | 83.42 | 74.07 | a | 61.13 | 52.11 | b | 39.39 | c | 61.21 | |||||
2013 | 34.17 | a | 37.30 | a | 49.23 | 53.80 | 63.97 | a | 80.43 | 85.23 | 82.41 | b | 68.00 | 54.81 | 48.07 | a | 38.14 | c | 57.96 | |||||||
2014 | 44.23 | a | 45.39 | 49.87 | 55.93 | 65.00 | b | 77.30 | c | 85.07 | c | 77.17 | a | 73.96 | c | 63.60 | f | 49.45 | a | 43.34 | b | 60.61 | a | |||
2015 | 42.77 | a | 48.61 | 53.32 | 56.83 | 60.58 | 81.10 | 80.84 | 83.45 | b | 77.50 | 62.29 | 43.07 | 38.61 | 60.75 | |||||||||||
2016 | 36.39 | 44.38 | 53.55 | 55.57 | 62.19 | 81.20 | 86.65 | 83.71 | 72.93 | 63.70 | a | 51.83 | 37.71 | 60.82 | ||||||||||||
2017 | 35.42 | 44.68 | 53.70 | a | 55.21 | a | 65.42 | 81.27 | 85.35 | 81.81 | 69.30 | 60.32 | 54.47 | 45.65 | 61.05 | |||||||||||
2018 | 44.48 | 41.54 | 45.00 | d | 59.70 | 63.71 | 78.97 | 86.42 | 85.16 | 78.20 | 56.32 | 45.78 | c | 39.00 | j | 62.30 | a | |||||||||
2019 | 40.15 | e | 35.58 | b | 43.88 | e | 58.38 | i | 58.10 | b | 72.32 | b | 84.71 | 85.26 | 73.63 | 55.65 | 48.45 | a | 38.30 | a | 57.82 | a | ||||
2020 | 41.97 | a | 42.61 | a | 46.31 | b | 55.17 | 67.97 | 76.00 | 85.97 | 88.61 | 77.37 | 67.14 | b | 48.43 | 42.29 | 61.65 | |||||||||
2021 | 39.50 | a | 45.18 | 44.71 | 57.30 | 66.48 | 82.67 | 85.50 | a | 84.39 | h | 79.54 | b | 58.00 | 54.67 | 41.97 | 59.59 | a | ||||||||
2022 | 42.34 | b | 38.64 | 50.84 | 58.47 | 66.81 | 78.97 | 87.48 | b | 82.21 | b | 78.23 | 62.26 | 42.67 | 38.16 | 60.59 | ||||||||||
2023 | 35.19 | 36.32 | 38.32 | 54.63 | 66.03 | a | 71.90 | a | 88.50 | e | 81.79 | b | 74.88 | f | 61.26 | 49.96 | e | 45.13 | 57.19 | a | ||||||
2024 | 40.52 | 42.79 | a | 46.00 | 57.71 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.10 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.55 | 42.58 | 48.56 | 56.76 | 66.35 | 77.25 | 85.76 | 83.33 | 74.52 | 61.47 | 48.57 | 41.51 | 60.63 | |||||||||||||
S.D. | 3.51 | 4.15 | 4.06 | 4.16 | 3.98 | 3.87 | 1.99 | 2.29 | 3.24 | 4.06 | 4.13 | 3.78 | 1.42 | |||||||||||||
SKEW | 0.10 | 0.21 | -0.04 | -0.16 | -0.21 | -0.37 | 0.12 | -0.68 | -0.25 | -0.01 | 0.01 | 0.14 | -0.20 | |||||||||||||
MAX | 50.77 | 52.50 | 58.41 | 66.03 | 73.32 | 84.10 | 91.03 | 88.61 | 80.83 | 71.39 | 59.17 | 50.11 | 63.65 | |||||||||||||
MIN | 31.68 | 33.71 | 38.32 | 45.69 | 57.21 | 68.00 | 80.84 | 75.61 | 65.73 | 53.58 | 38.69 | 32.93 | 57.40 | |||||||||||||
YRS | 83 | 84 | 83 | 81 | 81 | 82 | 81 | 83 | 82 | 81 | 83 | 82 | 67 |