YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.25 | c | 34.25 | k |
1932 | 26.42 | g | 28.54 | e | 29.21 | c | 53.83 | 66.20 | a | 78.87 | 83.06 | 80.59 | b | 67.32 | h | 52.48 | 36.47 | 21.26 | d | 53.05 | b | |||||
1933 | 29.94 | 20.39 | 34.77 | a | 52.69 | a | 67.71 | 84.07 | 84.48 | 80.29 | 75.93 | 53.48 | 34.72 | a | 22.77 | a | 53.44 | |||||||||
1934 | 26.74 | 21.93 | 34.35 | 51.40 | 77.23 | 78.97 | 83.29 | 77.90 | 65.40 | 59.26 | 43.83 | 21.83 | a | 53.51 | ||||||||||||
1935 | 17.74 | 29.36 | 37.03 | 50.07 | 61.68 | 70.57 | 85.16 | 77.52 | 70.23 | 59.94 | 32.20 | 22.35 | 51.15 | |||||||||||||
1936 | 12.52 | 8.86 | a | 33.32 | 45.40 | 71.35 | 73.40 | 90.84 | 81.94 | 73.97 | 53.13 | 35.60 | 30.48 | 50.90 | ||||||||||||
1937 | 16.23 | 22.25 | 34.00 | 50.31 | a | 68.03 | 74.27 | 83.17 | a | 83.81 | 70.47 | 52.35 | 37.10 | 23.35 | 51.28 | |||||||||||
1938 | 19.03 | 27.39 | 42.23 | 52.73 | 61.16 | 72.17 | 74.39 | 79.13 | 69.13 | 61.97 | 37.33 | 25.29 | 51.83 | |||||||||||||
1939 | 27.35 | 20.36 | 36.84 | 51.40 | 72.77 | 74.40 | 81.39 | 78.45 | 71.20 | 56.39 | 46.57 | b | 36.13 | a | 54.44 | |||||||||||
1940 | 16.43 | a | 28.07 | a | 32.52 | 52.70 | 65.71 | 75.07 | 84.06 | 76.74 | 75.27 | 61.81 | 36.59 | a | 27.81 | 52.73 | ||||||||||
1941 | 23.39 | 25.86 | 35.39 | 62.57 | 74.97 | 76.87 | 82.16 | 79.58 | 70.90 | 57.87 | 43.50 | 32.55 | 55.47 | |||||||||||||
1942 | 27.84 | 26.96 | 41.00 | 63.23 | 65.97 | 74.77 | 79.68 | 78.71 | 65.33 | 60.16 | 40.47 | 21.77 | 53.82 | |||||||||||||
1943 | 18.29 | 29.25 | 31.77 | 54.50 | 66.13 | 78.40 | 83.65 | 80.35 | 67.63 | 59.74 | 34.00 | 29.68 | 52.78 | |||||||||||||
1944 | 33.58 | 30.24 | 33.65 | 52.27 | 71.81 | 79.43 | 79.06 | 80.65 | 70.03 | 60.90 | 42.57 | 24.94 | 54.93 | |||||||||||||
1945 | 18.58 | 26.37 | a | 48.68 | 51.97 | 63.19 | 69.17 | 78.00 | 80.22 | v | 61.50 | t | 57.45 | 38.17 | 21.06 | 47.26 | b | |||||||||
1946 | 24.19 | 25.00 | 51.06 | 59.90 | 66.94 | 75.97 | 81.97 | 79.13 | 70.00 | 60.23 | 41.20 | 27.52 | 55.26 | |||||||||||||
1947 | 28.29 | 22.61 | 35.97 | 50.43 | 63.03 | 73.27 | 82.77 | 86.74 | 72.50 | 68.45 | 33.50 | 26.47 | a | 53.67 | ||||||||||||
1948 | 19.53 | a | 25.45 | 37.03 | a | 60.10 | 70.32 | 76.41 | a | 83.55 | 83.16 | 79.70 | 60.84 | 40.90 | a | 26.74 | 55.31 | |||||||||
1949 | 24.19 | 25.04 | 36.58 | 57.23 | 72.81 | 82.55 | a | 84.16 | 83.45 | 67.67 | 60.29 | 42.07 | 26.81 | 55.24 | ||||||||||||
1950 | 18.26 | 25.50 | 30.52 | 43.50 | 66.16 | 78.57 | 79.84 | 78.58 | 72.77 | 61.81 | 34.93 | 19.32 | 50.81 | |||||||||||||
1951 | 18.52 | 26.11 | 30.81 | 50.00 | 72.48 | 72.53 | 80.06 | 75.32 | 64.40 | 56.29 | 32.37 | 22.97 | 50.15 | |||||||||||||
1952 | 23.48 | 30.90 | 33.68 | 60.67 | 69.48 | 78.97 | 82.16 | 77.06 | 72.40 | 54.77 | 43.33 | 29.23 | 54.68 | |||||||||||||
1953 | 24.77 | 25.61 | 37.23 | 49.07 | 70.10 | 78.97 | 81.23 | 80.77 | 71.63 | 67.84 | 46.67 | 28.68 | 55.21 | |||||||||||||
1954 | 18.84 | 37.18 | 35.71 | 56.57 | 60.32 | 79.40 | 81.23 | 78.10 | 66.93 | 54.32 | 43.07 | 27.65 | 53.28 | |||||||||||||
1955 | 20.42 | 23.43 | 34.84 | 63.77 | 74.32 | 77.17 | 87.94 | 84.65 | 71.53 | 60.03 | 32.90 | 20.71 | 54.31 | |||||||||||||
1956 | 23.42 | 24.83 | 34.03 | 51.20 | 68.26 | 81.60 | 77.97 | 78.77 | 69.33 | 66.13 | 40.53 | 29.03 | 53.76 | |||||||||||||
1957 | 16.13 | 27.18 | 38.97 | 57.37 | 68.77 | 76.17 | 84.32 | 79.06 | 67.83 | 55.71 | 37.53 | 29.55 | 53.22 | |||||||||||||
1958 | 25.84 | 22.36 | 40.42 | 58.27 | 71.26 | 71.57 | 78.39 | 79.35 | 70.83 | 60.52 | 42.07 | 20.45 | 53.44 | |||||||||||||
1959 | 16.94 | 25.21 | 41.35 | 56.97 | 70.87 | 78.57 | 82.23 | 82.13 | 70.70 | 52.00 | 30.87 | 33.52 | 53.45 | |||||||||||||
1960 | 22.87 | 27.59 | 31.81 | 55.17 | 67.19 | 74.80 | 82.06 | 80.68 | 70.77 | 58.77 | 42.13 | 24.81 | 53.22 | |||||||||||||
1961 | 21.48 | 33.89 | 42.00 | 49.17 | 67.06 | 78.53 | 80.48 | 82.71 | 69.60 | 60.42 | 39.03 | 23.13 | 53.96 | |||||||||||||
1962 | 16.81 | 21.54 | 37.29 | 53.23 | 70.55 | 77.23 | 78.61 | 80.42 | 68.31 | a | 60.87 | 40.97 | 26.94 | 52.73 | ||||||||||||
1963 | 11.90 | 22.68 | 42.26 | 59.43 | 67.13 | 80.97 | 84.87 | 79.52 | 72.70 | 68.55 | 46.37 | 17.52 | 54.49 | |||||||||||||
1964 | 28.68 | 31.83 | 36.35 | 57.93 | 73.87 | 78.73 | 85.61 | 78.74 | 68.13 | 57.77 | 42.97 | 21.81 | 55.20 | |||||||||||||
1965 | 19.16 | 22.25 | 30.74 | 50.53 | 70.81 | 76.30 | 79.13 | 77.90 | 60.73 | 59.90 | 38.77 | 30.94 | 51.43 | |||||||||||||
1966 | 13.29 | 26.07 | 42.29 | 50.53 | 65.13 | 79.76 | a | 86.10 | 77.00 | 71.20 | 57.65 | 37.87 | 25.35 | 52.69 | ||||||||||||
1967 | 23.87 | 21.04 | 38.19 | 53.87 | 63.84 | 76.47 | 78.94 | 77.13 | 72.10 | 56.16 | 37.47 | 29.03 | 52.34 | |||||||||||||
1968 | 22.45 | 24.24 | 48.52 | 60.13 | 64.81 | 75.63 | 80.71 | 80.32 | 69.50 | 59.39 | 39.70 | 24.90 | 54.19 | |||||||||||||
1969 | 18.58 | 29.71 | 34.74 | 58.87 | 71.06 | 70.17 | 81.23 | 85.35 | 72.53 | 53.87 | 39.73 | 26.71 | 53.55 | |||||||||||||
1970 | 15.00 | 27.36 | 35.48 | 55.50 | 67.13 | 80.73 | 85.32 | 82.00 | 69.30 | 57.71 | 37.67 | 25.48 | 53.22 | |||||||||||||
1971 | 15.03 | 25.82 | 35.19 | 57.20 | 66.87 | 82.30 | 78.97 | a | 78.39 | 72.37 | 63.03 | 39.87 | 26.00 | 53.42 | ||||||||||||
1972 | 16.90 | 21.48 | 35.19 | 51.70 | 74.03 | 78.27 | 79.13 | 78.90 | 68.07 | 52.81 | 36.38 | a | 19.77 | 51.05 | ||||||||||||
1973 | 24.71 | 29.71 | 47.23 | 54.50 | 64.74 | 79.37 | 82.68 | 82.97 | a | 68.07 | 63.81 | 40.87 | 25.23 | 55.32 | ||||||||||||
1974 | 20.90 | 28.14 | 36.87 | 56.83 | 64.48 | 76.43 | 86.39 | 77.84 | 66.73 | 58.81 | 41.33 | 30.77 | a | 53.79 | ||||||||||||
1975 | 23.68 | 26.79 | 32.84 | 48.30 | 73.35 | 76.63 | 84.35 | 80.48 | 66.93 | 62.16 | 45.13 | 24.39 | 53.75 | |||||||||||||
1976 | 20.74 | 35.66 | 39.48 | 61.50 | 71.19 | 83.43 | 86.61 | 83.20 | a | 72.20 | 54.61 | 34.77 | 18.35 | 55.15 | ||||||||||||
1977 | 10.29 | 30.68 | 45.13 | a | 64.34 | a | 79.52 | 77.77 | 83.52 | 75.71 | 68.13 | 57.81 | 39.07 | 22.19 | 54.51 | |||||||||||
1978 | 16.80 | a | 22.93 | a | 39.84 | 55.21 | b | 73.63 | a | 77.83 | 79.61 | 80.63 | a | 76.40 | 58.19 | 39.03 | a | 21.42 | 53.46 | |||||||
1979 | 10.16 | 19.93 | 36.48 | 51.33 | 65.16 | 76.13 | 82.13 | 77.87 | 72.34 | a | 55.16 | 38.30 | 30.87 | 51.32 | ||||||||||||
1980 | 20.43 | a | 24.38 | 35.74 | 60.73 | 75.52 | 78.17 | 84.81 | 80.20 | a | 68.30 | 54.26 | 42.33 | 25.73 | a | 54.22 | ||||||||||
1981 | 27.27 | a | 31.11 | 44.65 | 58.60 | 69.16 | 75.83 | 81.52 | 78.97 | 69.63 | 54.37 | a | 46.13 | 24.13 | 55.11 | |||||||||||
1982 | 12.23 | 24.23 | b | 35.67 | a | 52.29 | b | 74.41 | b | 74.07 | a | 84.47 | a | 79.21 | b | 68.31 | d | 58.23 | 36.14 | b | 30.57 | c | 52.48 | |||
1983 | 26.24 | b | 31.68 | 39.24 | b | 51.55 | a | 64.19 | 78.15 | c | 84.90 | b | 84.17 | a | 69.96 | d | 56.43 | c | 39.00 | b | 13.62 | e | 53.26 | |||
1984 | 18.88 | f | 34.92 | c | 34.47 | a | 59.27 | d | 66.28 | b | 78.67 | 82.16 | 82.80 | a | 67.08 | d | 59.14 | c | 40.11 | b | 27.00 | d | 57.44 | a | ||
1985 | 20.88 | g | 37.00 | p | 45.00 | c | 62.57 | 75.03 | a | 74.04 | b | 83.21 | c | 75.93 | b | 68.69 | d | 57.73 | a | 32.96 | c | 14.04 | d | 58.92 | b | |
1986 | 25.26 | 24.65 | b | 45.26 | d | 61.63 | c | 72.69 | b | 80.19 | c | 83.97 | 78.62 | b | 68.24 | a | 59.48 | 36.76 | a | 28.17 | a | 55.41 | ||||
1987 | 28.68 | c | 39.23 | b | 48.39 | c | 67.79 | a | 75.66 | b | 84.79 | a | 86.35 | 80.10 | 74.83 | 53.34 | b | 43.83 | 30.70 | a | 59.48 | |||||
1988 | 19.76 | b | 24.04 | b | 41.21 | c | 59.27 | d | 79.74 | 87.52 | e | 90.76 | b | 84.08 | e | 73.57 | 54.76 | b | 39.61 | b | 26.30 | a | 56.72 | |||
1989 | 32.21 | b | 22.56 | a | 35.10 | a | ----- | z | 72.14 | c | 78.32 | b | ----- | z | 81.17 | a | 73.27 | 62.42 | 36.87 | 18.74 | 51.28 | b | ||||
1990 | 33.55 | 32.29 | 46.52 | 59.60 | 67.84 | 78.33 | 80.10 | a | 79.97 | ----- | z | 57.55 | 46.72 | a | 25.93 | a | 55.31 | a | ||||||||
1991 | 19.77 | 33.07 | 42.13 | a | 59.37 | 70.37 | a | 80.03 | 79.45 | 80.77 | 67.69 | a | 55.00 | 31.13 | 27.68 | 53.87 | ||||||||||
1992 | 26.71 | 32.45 | 40.19 | 50.10 | 72.39 | 74.90 | 75.29 | 75.29 | 68.55 | a | 54.21 | c | 34.43 | 26.58 | 52.59 | |||||||||||
1993 | 23.83 | a | 24.54 | 39.00 | a | 50.57 | 65.73 | a | 71.30 | 77.26 | 78.32 | 62.72 | a | 55.52 | d | 35.50 | d | 25.54 | e | 50.82 | ||||||
1994 | 13.75 | c | 19.74 | a | 42.11 | d | 55.31 | d | 70.48 | 77.77 | 77.73 | a | 76.50 | a | 72.57 | b | 58.00 | b | 44.15 | c | 31.31 | e | 53.29 | |||
1995 | 23.44 | d | 26.52 | e | 40.39 | 47.97 | a | 66.48 | b | 80.79 | a | 79.97 | a | 80.97 | 68.29 | b | 55.14 | c | 31.45 | h | 23.00 | c | 53.91 | a | ||
1996 | 17.42 | e | 23.96 | d | 33.00 | d | 49.67 | c | 64.67 | a | 76.07 | a | 76.71 | 79.52 | 68.77 | 56.07 | b | 30.33 | 21.16 | 49.78 | ||||||
1997 | 17.03 | 27.46 | 36.23 | 52.37 | 61.19 | 79.73 | 77.94 | 74.68 | 70.00 | 57.29 | 34.23 | 31.32 | 51.62 | |||||||||||||
1998 | 23.65 | 37.29 | 38.16 | 59.77 | 75.84 | 72.40 | 80.52 | 80.84 | 76.00 | 58.03 | 42.86 | a | 31.19 | 56.38 | ||||||||||||
1999 | 16.55 | 33.32 | 41.10 | 56.63 | 68.39 | 75.03 | 83.39 | 76.77 | 69.53 | 57.06 | 48.21 | a | 28.26 | 54.52 | ||||||||||||
2000 | 21.65 | 30.75 | a | 45.65 | 52.50 | ----- | z | 73.87 | 80.19 | 78.26 | 66.90 | 58.16 | 35.33 | 12.45 | 50.52 | a | ||||||||||
2001 | 24.26 | 18.61 | 33.84 | 53.90 | a | 68.03 | 76.50 | 83.35 | 80.97 | 65.07 | 53.81 | 51.90 | 32.52 | 53.56 | ||||||||||||
2002 | 28.26 | 31.71 | 29.00 | 50.41 | a | 59.19 | 75.43 | 83.23 | 77.00 | 71.10 | 45.83 | a | 36.97 | 28.94 | 51.42 | |||||||||||
2003 | 18.84 | 21.56 | a | 36.47 | a | 52.03 | 65.45 | 75.30 | 79.06 | 82.10 | 69.80 | 57.67 | a | 37.66 | a | 28.42 | 52.03 | |||||||||
2004 | 14.68 | 26.55 | 38.42 | ----- | z | 61.19 | 70.90 | 77.65 | 71.45 | 73.17 | 56.19 | 43.14 | a | 25.03 | 50.76 | a | ||||||||||
2005 | 19.00 | 30.75 | 36.45 | 59.33 | 59.94 | 79.93 | 82.35 | 79.32 | 74.10 | 59.30 | a | 41.87 | 22.94 | 53.77 | ||||||||||||
2006 | 32.13 | 24.75 | 38.68 | 60.43 | 66.55 | 78.00 | 86.61 | 78.61 | 66.07 | 52.16 | 41.57 | 31.77 | 54.78 | |||||||||||||
2007 | 23.80 | a | 18.11 | 42.58 | 54.03 | 70.42 | 79.40 | 81.06 | 77.61 | 70.43 | 59.29 | 38.23 | 20.55 | 52.96 | ||||||||||||
2008 | 18.61 | 20.34 | 33.93 | a | 49.03 | 63.86 | b | 74.27 | 79.04 | c | 78.03 | 69.33 | 55.26 | 38.10 | 19.58 | 49.95 | ||||||||||
2009 | 13.43 | a | 27.93 | 37.35 | 53.73 | 66.29 | 74.00 | 74.39 | 74.97 | 74.43 | 46.81 | 48.13 | 21.87 | 51.11 | ||||||||||||
2010 | 19.52 | 28.36 | 48.23 | 63.07 | 68.32 | 73.87 | 81.00 | 81.35 | 65.90 | 60.58 | 39.80 | 20.77 | 54.23 | |||||||||||||
2011 | 15.65 | 24.29 | 34.81 | 50.20 | 63.65 | 74.80 | 83.94 | 78.77 | 67.79 | a | 60.40 | a | 43.17 | 29.61 | 52.26 | |||||||||||
2012 | 26.19 | 32.17 | 51.97 | b | 56.07 | 69.52 | 77.90 | 85.81 | 79.10 | 71.13 | 52.52 | 41.83 | 28.45 | 56.05 | ||||||||||||
2013 | 21.32 | 23.43 | 32.03 | 43.40 | 64.10 | 73.87 | 79.42 | 80.35 | 73.17 | 54.23 | 36.23 | 16.16 | 49.81 | |||||||||||||
2014 | 13.58 | 14.21 | 28.68 | 46.47 | 64.58 | 76.00 | 76.55 | 78.06 | 67.77 | 54.39 | 29.33 | 26.61 | 48.02 | |||||||||||||
2015 | 20.10 | 15.86 | 41.87 | a | 56.47 | 67.77 | 75.73 | 79.16 | 75.06 | 74.47 | 57.90 | 46.40 | 32.94 | 53.64 | ||||||||||||
2016 | 19.94 | 27.45 | 44.23 | 52.77 | ----- | z | ----- | z | ----- | z | 77.05 | i | 69.73 | 58.32 | 48.87 | 22.94 | 43.03 | d | ||||||||
2017 | 22.94 | 33.46 | 36.97 | 53.83 | 62.39 | 75.00 | 77.77 | 72.39 | 71.60 | 57.10 | 35.00 | 20.52 | 51.58 | |||||||||||||
2018 | 19.52 | 20.82 | 37.29 | 41.20 | 74.47 | a | 76.00 | 78.94 | 77.52 | 69.40 | 47.97 | 29.57 | 27.71 | 50.03 | ||||||||||||
2019 | 18.06 | 17.25 | 32.58 | 50.03 | 60.42 | 74.53 | 79.65 | 74.84 | 68.47 | 49.68 | 31.07 | 26.00 | 48.55 | |||||||||||||
2020 | 23.94 | 26.07 | 39.03 | 49.43 | 63.03 | 77.00 | 80.45 | 77.29 | 65.77 | 46.29 | 43.27 | 28.55 | 51.68 | |||||||||||||
2021 | 23.77 | 15.96 | 44.74 | 52.47 | 64.19 | 80.70 | 80.55 | 77.90 | 71.60 | 61.23 | 39.70 | 27.81 | 53.39 | |||||||||||||
2022 | 14.90 | 19.82 | 34.71 | 44.07 | 65.84 | 75.77 | 78.45 | 75.68 | 69.60 | 56.10 | 38.87 | 20.29 | 49.51 | |||||||||||||
2023 | 23.48 | 25.64 | 33.10 | 48.00 | 68.65 | 79.97 | 78.32 | 77.61 | 71.63 | 56.23 | 40.60 | 35.94 | 53.26 | |||||||||||||
2024 | 22.26 | 37.90 | 42.29 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.15 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.02 | 26.12 | 38.16 | 54.37 | 68.30 | 76.97 | 81.60 | 79.25 | 70.05 | 57.34 | 39.30 | 25.58 | 53.15 | |||||||||||||
S.D. | 5.25 | 5.45 | 5.17 | 5.27 | 4.59 | 3.32 | 3.26 | 2.75 | 3.13 | 4.25 | 4.72 | 4.84 | 1.95 | |||||||||||||
SKEW | 0.22 | -0.08 | 0.57 | 0.03 | 0.25 | 0.27 | 0.30 | 0.04 | 0.07 | -0.07 | 0.08 | -0.29 | -0.10 | |||||||||||||
MAX | 33.58 | 39.23 | 51.97 | 67.79 | 79.74 | 87.52 | 90.84 | 86.74 | 79.70 | 68.55 | 51.90 | 36.13 | 59.48 | |||||||||||||
MIN | 10.16 | 8.86 | 28.68 | 41.20 | 59.19 | 69.17 | 74.39 | 71.45 | 60.73 | 45.83 | 29.33 | 12.45 | 48.02 | |||||||||||||
YRS | 90 | 92 | 93 | 90 | 90 | 91 | 90 | 90 | 89 | 92 | 91 | 93 | 82 |