YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1931 | 35.92 | e | 41.36 | 53.97 | a | 65.90 | 78.03 | 79.00 | 90.42 | 89.39 | 75.87 | 63.73 | a | 44.52 | a | 30.00 | 62.34 | |||||||||
1932 | 29.74 | 36.07 | 52.03 | 66.13 | 71.68 | 82.27 | 82.97 | 85.68 | 79.17 | 65.71 | 49.03 | a | 34.27 | a | 61.23 | |||||||||||
1933 | 37.00 | 34.25 | 51.00 | a | 64.70 | 66.19 | 78.47 | 87.03 | 88.77 | 71.83 | 65.58 | 49.43 | 39.48 | 61.15 | ||||||||||||
1934 | 40.03 | 48.61 | 62.19 | 73.53 | 76.65 | 80.50 | 86.06 | 89.00 | 74.30 | 64.19 | 49.53 | 37.84 | 65.20 | |||||||||||||
1935 | 31.68 | 43.50 | 51.26 | 62.57 | 73.81 | 78.73 | 86.29 | 84.42 | 83.10 | 64.74 | 41.70 | 34.13 | 61.33 | |||||||||||||
1936 | 36.10 | 25.34 | 52.55 | 67.57 | 76.90 | 78.30 | 87.42 | 88.61 | 79.07 | 71.57 | c | 44.30 | 37.68 | 62.12 | ||||||||||||
1937 | 19.94 | 33.50 | 52.58 | 60.03 | 72.58 | 78.23 | 89.06 | 82.48 | 80.76 | a | 67.87 | 47.67 | 37.45 | 60.18 | ||||||||||||
1938 | 36.77 | 38.25 | 52.13 | 66.63 | 75.16 | 82.97 | 92.06 | 85.65 | 84.73 | 66.13 | 47.67 | 38.13 | 63.86 | |||||||||||||
1939 | 39.94 | 40.25 | 55.10 | 69.13 | 75.61 | 78.27 | 90.03 | 91.35 | 80.93 | 66.81 | 48.88 | d | 41.87 | 64.85 | ||||||||||||
1940 | 35.52 | 42.41 | 60.00 | 65.90 | 76.84 | 85.13 | 89.00 | 89.35 | 82.30 | 65.06 | 42.33 | 38.33 | a | 64.35 | ||||||||||||
1941 | 36.45 | 46.21 | 61.84 | 69.50 | 72.48 | 79.43 | 93.19 | 85.19 | 71.73 | 63.87 | 51.47 | 39.29 | 64.22 | |||||||||||||
1942 | 30.94 | 42.11 | 55.26 | 67.57 | 69.52 | 76.07 | 90.39 | 91.06 | 83.17 | 67.13 | 42.30 | 35.32 | 62.57 | |||||||||||||
1943 | 27.19 | 40.96 | 52.45 | 66.60 | 68.58 | 75.40 | 87.52 | 83.71 | 82.33 | 62.65 | 45.87 | 37.55 | 60.90 | |||||||||||||
1944 | 34.90 | 41.93 | 53.13 | 65.43 | 74.10 | 80.77 | 90.45 | 84.87 | 80.93 | 68.71 | 47.38 | f | 32.75 | c | 64.36 | a | ||||||||||
1945 | 37.39 | 45.43 | 52.71 | 62.13 | 74.37 | a | 78.13 | 88.87 | 88.23 | 75.07 | 65.45 | i | 42.83 | a | 35.81 | 61.91 | a | |||||||||
1946 | 37.10 | 41.92 | d | 55.16 | 64.33 | 76.61 | 76.46 | d | 86.96 | f | 87.74 | h | 71.86 | h | 58.87 | a | 38.29 | i | 37.16 | 55.95 | d | |||||
1947 | 33.65 | 42.54 | 57.42 | e | 68.18 | b | 78.43 | a | 76.04 | c | 86.90 | k | 83.23 | 76.80 | 59.61 | 48.78 | c | 38.14 | b | 60.26 | a | |||||
1948 | 33.33 | a | 39.89 | j | 52.68 | i | 52.36 | p | 66.10 | 87.52 | a | 83.19 | 81.77 | 75.10 | 60.58 | 46.40 | 30.58 | 62.73 | c | |||||||
1949 | 19.45 | 35.25 | 52.03 | 67.80 | 77.03 | 79.37 | 85.03 | 85.84 | 77.07 | 59.61 | 51.43 | 42.55 | 61.04 | |||||||||||||
1950 | 17.84 | 35.68 | 50.00 | 60.27 | 70.03 | 76.27 | 85.87 | 87.03 | 80.23 | 57.19 | 46.10 | 38.52 | 58.75 | |||||||||||||
1951 | 36.32 | 40.50 | 47.87 | 68.47 | 72.42 | 80.33 | 88.03 | 86.29 | 78.00 | 59.13 | 44.43 | 31.73 | a | 61.13 | ||||||||||||
1952 | 25.55 | 38.93 | 52.39 | 67.27 | 73.16 | 76.57 | 87.00 | 86.06 | 80.37 | 68.68 | 44.30 | 37.58 | 61.49 | |||||||||||||
1953 | 42.23 | 49.39 | 56.71 | 61.37 | 69.29 | 71.70 | 85.29 | 82.93 | a | 78.10 | 64.58 | 50.20 | 45.19 | 63.08 | ||||||||||||
1954 | 32.45 | 42.79 | 51.42 | 62.10 | 73.68 | 74.13 | 84.42 | 80.58 | 74.63 | 59.74 | 52.00 | 37.52 | 60.45 | |||||||||||||
1955 | 34.58 | 40.75 | 47.00 | 57.80 | 67.19 | 79.69 | a | 80.61 | 85.81 | 76.87 | 60.68 | 38.00 | 31.52 | 58.37 | ||||||||||||
1956 | 34.26 | 30.21 | 48.65 | 67.60 | 74.03 | 73.34 | a | 84.63 | l | 84.39 | 74.93 | 58.81 | 41.93 | 37.77 | 56.90 | a | ||||||||||
1957 | 23.48 | 36.79 | 50.42 | 65.27 | 76.00 | 79.80 | 83.58 | 81.81 | 80.60 | 57.77 | 48.10 | 41.39 | 60.42 | |||||||||||||
1958 | 39.39 | 48.61 | 51.81 | 61.17 | 80.65 | 83.10 | 91.87 | 90.87 | 74.47 | 63.68 | 43.53 | 36.68 | 63.82 | |||||||||||||
1959 | 37.19 | 39.36 | 54.29 | 65.60 | 69.16 | 77.50 | 86.61 | 82.90 | 70.73 | 60.61 | 44.60 | 38.23 | 60.57 | |||||||||||||
1960 | 30.48 | 42.90 | 53.03 | 62.47 | 67.52 | 79.10 | 91.90 | 81.68 | 76.80 | 64.03 | 46.07 | 33.23 | 60.77 | |||||||||||||
1961 | 35.39 | 47.29 | 52.77 | 62.53 | 69.71 | 83.80 | 88.81 | 91.52 | 74.13 | 61.03 | 43.17 | 36.39 | 62.21 | |||||||||||||
1962 | 32.55 | 42.89 | 50.52 | 67.30 | 66.55 | 78.17 | 85.65 | 82.29 | 78.80 | 61.71 | 48.30 | 40.61 | 61.28 | |||||||||||||
1963 | 33.68 | 45.11 | a | 57.23 | 59.07 | 72.65 | 77.70 | 82.39 | 87.48 | 83.57 | 66.71 | 48.57 | 35.90 | 62.50 | ||||||||||||
1964 | 39.29 | 45.90 | 54.13 | 62.77 | 70.74 | 78.63 | 86.23 | 80.74 | 75.33 | 64.35 | 44.97 | 33.53 | a | 61.38 | ||||||||||||
1965 | 36.29 | 47.18 | 53.61 | 65.30 | 71.90 | 81.20 | 88.39 | 85.35 | 75.73 | 67.10 | 48.60 | 36.97 | 63.14 | |||||||||||||
1966 | 33.45 | 43.29 | 53.13 | 66.97 | 75.16 | 75.77 | 83.94 | 86.87 | 80.30 | 62.71 | 50.87 | 42.10 | 62.88 | |||||||||||||
1967 | 43.48 | 51.25 | 54.42 | 58.13 | 71.65 | 83.40 | 89.45 | 93.58 | 84.80 | 61.77 | 50.40 | 37.52 | 64.99 | |||||||||||||
1968 | 37.32 | 47.21 | 58.19 | 63.97 | 74.58 | 80.50 | 91.61 | 82.35 | 79.07 | 60.26 | 47.97 | 33.77 | 63.07 | |||||||||||||
1969 | 24.06 | 35.32 | 53.16 | 64.07 | 78.13 | 86.63 | 88.13 | 86.90 | 76.87 | 62.61 | 47.97 | 37.29 | 61.76 | |||||||||||||
1970 | 33.48 | 45.43 | 55.74 | 60.90 | 75.58 | 86.87 | 91.35 | 90.42 | 74.77 | 62.32 | 46.07 | 33.87 | 63.07 | |||||||||||||
1971 | 37.29 | 46.04 | ----- | z | 63.20 | 76.19 | 76.60 | 90.94 | 94.03 | 73.07 | 61.48 | 47.13 | 32.16 | 63.47 | a | |||||||||||
1972 | 33.23 | ----- | z | 57.68 | 60.90 | 76.03 | 80.73 | 86.19 | 88.10 | 72.63 | 63.68 | 46.67 | 34.19 | 63.64 | a | |||||||||||
1973 | 33.90 | 44.64 | 58.13 | 67.23 | 75.27 | a | 79.70 | 91.19 | 87.87 | 77.80 | 62.29 | 41.53 | 41.23 | 63.40 | ||||||||||||
1974 | 35.10 | 48.25 | 54.81 | 63.70 | 69.32 | 85.31 | a | 86.10 | a | 89.45 | 81.87 | 65.10 | 48.60 | 42.19 | 64.15 | |||||||||||
1975 | 36.97 | 38.61 | 50.74 | 61.37 | 72.81 | 78.67 | 91.48 | 82.03 | 80.24 | a | 60.87 | 47.83 | 40.23 | 61.82 | ||||||||||||
1976 | 37.10 | 45.50 | a | 52.10 | 63.50 | 75.35 | 78.03 | 87.61 | 83.35 | 82.73 | 64.19 | 49.37 | 39.23 | 63.17 | ||||||||||||
1977 | 31.97 | 49.04 | 56.90 | 72.57 | 66.87 | 84.47 | 87.81 | 93.48 | 73.90 | 63.81 | 45.33 | 37.65 | 63.65 | |||||||||||||
1978 | 37.23 | 43.18 | 57.71 | 62.97 | 71.58 | 85.52 | a | 90.58 | 84.97 | 73.60 | 66.19 | 42.10 | 35.74 | 62.61 | ||||||||||||
1979 | 26.10 | 38.36 | 57.71 | 65.30 | 77.68 | 85.37 | 92.97 | a | 89.19 | 82.37 | 68.68 | 42.90 | 42.00 | 64.05 | ||||||||||||
1980 | 30.48 | 38.93 | 54.10 | 68.60 | 74.50 | a | 76.76 | a | 89.58 | 84.23 | 78.10 | 65.26 | 47.53 | 38.23 | a | 62.19 | ||||||||||
1981 | 43.35 | 45.32 | 60.61 | 64.90 | 72.42 | 77.37 | 86.71 | 93.03 | 79.30 | 63.10 | 50.03 | 38.03 | 64.51 | |||||||||||||
1982 | 35.29 | 44.38 | b | 55.90 | a | 62.41 | a | 73.58 | 83.64 | b | 86.39 | c | 86.68 | c | 76.84 | e | 63.25 | c | 43.25 | b | 36.31 | b | 62.33 | |||
1983 | 42.48 | 45.64 | 57.58 | 65.53 | 78.82 | c | 78.87 | 83.17 | a | 89.04 | c | 75.80 | 65.60 | a | 48.87 | 28.19 | 63.30 | |||||||||
1984 | 39.45 | 45.31 | c | 58.55 | 62.03 | 69.32 | 78.73 | 90.35 | 89.16 | 74.30 | 61.83 | a | 45.40 | 28.43 | a | 61.91 | ||||||||||
1985 | 31.42 | 37.86 | 55.71 | 68.10 | 77.03 | 83.73 | 95.94 | 86.16 | 73.37 | 63.03 | a | 36.23 | 28.32 | 61.41 | ||||||||||||
1986 | 36.84 | 42.84 | c | 59.83 | b | 64.30 | 74.81 | 87.20 | 83.84 | 93.00 | 71.17 | 66.45 | 47.97 | 35.58 | 63.65 | |||||||||||
1987 | 33.74 | 45.86 | 54.74 | 68.40 | 75.94 | 82.90 | 85.67 | a | 87.06 | 83.27 | 68.39 | 51.80 | 34.81 | 64.38 | ||||||||||||
1988 | 34.58 | 47.07 | 56.58 | 66.13 | 71.30 | a | 77.40 | 87.71 | 87.29 | 77.93 | 69.81 | 48.70 | 35.97 | 63.37 | ||||||||||||
1989 | 39.61 | 34.43 | 50.17 | b | 66.53 | 73.81 | 83.53 | 87.74 | 85.55 | 81.60 | 64.94 | 50.97 | 38.00 | 63.07 | ||||||||||||
1990 | 43.03 | b | 42.64 | 57.81 | 69.37 | 71.96 | f | 83.21 | k | 91.53 | a | 87.65 | 85.03 | 62.13 | 54.57 | 32.10 | 62.59 | b | ||||||||
1991 | 35.26 | d | 51.04 | 52.42 | 64.33 | 70.16 | 76.27 | 89.13 | 87.63 | a | 81.83 | 64.65 | 45.40 | 41.48 | 63.30 | |||||||||||
1992 | 39.55 | 46.24 | 60.81 | 65.93 | 77.97 | 87.20 | 86.03 | 89.00 | 74.43 | 64.19 | 46.24 | a | 31.39 | 64.08 | ||||||||||||
1993 | 27.55 | 37.54 | 50.13 | 60.63 | 78.39 | 77.37 | 79.58 | 84.35 | 79.80 | 65.77 | 44.23 | 36.90 | 60.19 | |||||||||||||
1994 | 42.17 | a | 41.32 | 59.58 | 67.47 | 74.48 | 80.31 | a | 92.03 | 86.48 | 81.63 | 62.48 | 42.60 | 36.54 | c | 63.92 | ||||||||||
1995 | 34.40 | a | 46.25 | 52.81 | 62.40 | 75.10 | 78.33 | 86.19 | 80.71 | 80.53 | 61.16 | 47.50 | 37.29 | 61.89 | ||||||||||||
1996 | 31.35 | 37.72 | 52.68 | 62.60 | 66.90 | 78.60 | 89.39 | 86.65 | 74.37 | 60.58 | 42.50 | 29.35 | 59.39 | |||||||||||||
1997 | 33.57 | a | 40.46 | 51.23 | 61.03 | 73.81 | 76.73 | 84.35 | 86.65 | 76.10 | 60.45 | 47.60 | 38.48 | 60.87 | ||||||||||||
1998 | 34.97 | 46.54 | 55.90 | 63.77 | 71.90 | 79.57 | 91.45 | 88.87 | 83.97 | 62.90 | 49.37 | 36.32 | 63.79 | |||||||||||||
1999 | 40.23 | 45.21 | 52.74 | 63.17 | 68.81 | 76.97 | a | 84.23 | 87.16 | 77.40 | 61.65 | 49.33 | 42.93 | b | 62.48 | |||||||||||
2000 | 34.65 | 41.45 | 53.93 | a | 67.63 | 71.90 | 79.87 | 86.61 | 87.58 | 78.13 | 62.23 | 41.53 | 34.03 | 61.63 | ||||||||||||
2001 | 36.19 | 40.21 | 55.42 | 62.90 | 73.84 | 75.83 | 87.43 | a | 88.29 | 80.87 | 62.52 | 48.50 | b | 38.45 | 62.54 | |||||||||||
2002 | 40.23 | 45.43 | 51.26 | 63.62 | a | 70.00 | 81.57 | 89.16 | 86.97 | 78.03 | 64.52 | 48.23 | 39.17 | b | 63.18 | |||||||||||
2003 | 38.10 | a | 47.64 | 55.61 | 62.67 | 70.81 | 83.67 | 91.52 | 88.10 | a | 80.53 | 66.97 | 43.40 | 36.37 | a | 63.78 | ||||||||||
2004 | 33.61 | 42.38 | 59.61 | 69.00 | 73.52 | 83.73 | 91.55 | 90.07 | a | 76.07 | 65.19 | 47.70 | 39.65 | 64.34 | ||||||||||||
2005 | 33.19 | 49.39 | ----- | z | 64.53 | 74.26 | 78.77 | 89.71 | 91.77 | 78.17 | 64.35 | ----- | z | 31.42 | 65.56 | b | ||||||||||
2006 | 40.26 | 45.25 | 52.73 | a | 63.67 | 74.00 | 81.47 | 92.65 | 88.42 | 79.90 | 65.67 | a | 44.10 | 33.10 | 63.43 | |||||||||||
2007 | 33.81 | 42.32 | 55.66 | b | 64.14 | a | 74.30 | k | 77.92 | d | 91.39 | c | 85.97 | 78.80 | 60.61 | c | 47.20 | 34.40 | a | 61.11 | a | |||||
2008 | 30.23 | 45.24 | 53.16 | 59.27 | 74.23 | 78.47 | 89.13 | 86.61 | 78.90 | 62.58 | 47.70 | 29.77 | 61.27 | |||||||||||||
2009 | 33.35 | 40.93 | 49.87 | 63.63 | 73.58 | 82.30 | 91.65 | 88.90 | 80.90 | 57.52 | 49.00 | a | 31.74 | 61.95 | ||||||||||||
2010 | 38.58 | 46.96 | 57.00 | 62.17 | 67.58 | 76.03 | 88.45 | 86.03 | 74.40 | 64.87 | 43.93 | 35.61 | 61.80 | |||||||||||||
2011 | 37.16 | 41.50 | 50.16 | 58.13 | 67.71 | 75.73 | 82.71 | 89.19 | 82.13 | 62.52 | 45.93 | 37.42 | 60.86 | |||||||||||||
2012 | 35.35 | 44.24 | 51.77 | 64.00 | 71.55 | 75.33 | 91.52 | 92.03 | 80.13 | 63.06 | 47.57 | 38.45 | 62.92 | |||||||||||||
2013 | 32.48 | 47.54 | 55.86 | c | 63.77 | 73.10 | a | 78.27 | 92.81 | 87.32 | 79.73 | 63.32 | 47.70 | 35.35 | 63.10 | |||||||||||
2014 | 41.26 | 38.64 | 53.58 | 64.23 | 75.26 | 79.67 | 92.03 | 89.16 | 79.50 | 66.10 | 46.97 | 39.61 | 63.83 | |||||||||||||
2015 | 36.45 | 50.11 | 60.61 | 64.00 | 76.65 | 88.83 | 91.81 | 89.26 | 75.57 | 68.16 | 48.07 | 36.23 | 65.48 | |||||||||||||
2016 | 35.16 | 47.83 | 55.45 | 71.73 | 75.10 | 81.40 | 85.58 | 88.77 | 76.87 | 59.55 | 53.43 | 32.68 | 63.63 | |||||||||||||
2017 | 27.42 | 35.93 | 50.87 | 60.50 | 73.32 | 79.90 | 92.13 | 91.32 | 78.23 | 61.97 | 46.10 | 34.45 | 61.01 | |||||||||||||
2018 | 39.23 | 45.54 | 53.39 | 61.77 | 79.35 | e | 78.77 | 91.19 | 88.26 | 76.77 | 62.68 | 47.83 | 40.13 | 63.74 | ||||||||||||
2019 | 38.19 | 30.68 | 47.19 | 64.03 | 75.13 | 81.00 | 85.10 | 88.45 | 74.50 | 58.39 | 47.63 | 36.81 | 60.59 | |||||||||||||
2020 | 38.87 | 49.28 | 55.68 | 65.30 | 73.13 | 77.97 | 87.90 | 89.32 | 79.80 | 64.65 | 47.00 | 38.90 | 63.98 | |||||||||||||
2021 | 40.13 | 40.93 | 56.45 | 67.00 | 73.13 | 86.93 | 95.26 | 88.74 | 77.23 | 62.40 | a | 49.73 | 36.71 | 64.55 | ||||||||||||
2022 | 32.45 | 43.65 | b | 56.83 | a | 57.37 | 66.19 | 77.77 | 90.82 | c | 94.19 | 82.40 | 73.88 | f | 40.30 | 27.79 | c | 60.89 | a | |||||||
2023 | 37.81 | 43.32 | 50.45 | 60.67 | 80.94 | 83.53 | 91.97 | 89.52 | d | 77.07 | 65.35 | 47.33 | 40.26 | 64.02 | ||||||||||||
2024 | 34.23 | 47.14 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.68 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.81 | 42.68 | 54.31 | 64.44 | 73.24 | 79.95 | 88.40 | 87.28 | 78.18 | 63.48 | 46.65 | 36.38 | 62.53 | |||||||||||||
S.D. | 5.04 | 4.90 | 3.35 | 3.23 | 3.50 | 3.54 | 3.30 | 3.19 | 3.40 | 2.91 | 3.26 | 3.66 | 1.52 | |||||||||||||
SKEW | -1.06 | -0.83 | 0.24 | 0.21 | -0.22 | 0.49 | -0.28 | -0.06 | -0.05 | 0.15 | -0.47 | -0.33 | -0.39 | |||||||||||||
MAX | 43.48 | 51.25 | 62.19 | 73.53 | 80.94 | 88.83 | 95.94 | 94.19 | 85.03 | 71.57 | 54.57 | 45.19 | 65.48 | |||||||||||||
MIN | 17.84 | 25.34 | 47.00 | 57.37 | 66.10 | 71.70 | 79.58 | 80.58 | 70.73 | 57.19 | 36.23 | 27.79 | 58.37 | |||||||||||||
YRS | 94 | 92 | 90 | 92 | 91 | 92 | 90 | 92 | 92 | 91 | 90 | 93 | 81 |