YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1934 | ----- | z | ----- | z | ----- | z | 49.00 | 76.16 | 82.23 | 84.32 | 76.03 | 67.30 | 57.71 | 42.47 | 23.97 | a | 62.13 | c | ||||||||
1935 | 22.13 | 28.32 | 39.43 | a | 52.20 | 64.42 | 71.50 | 86.58 | 77.87 | 67.77 | 54.97 | 35.68 | b | 28.97 | 52.49 | |||||||||||
1936 | 19.61 | 15.76 | 37.52 | b | 46.77 | 72.81 | 76.80 | 90.03 | 79.35 | 73.93 | a | 51.29 | 34.93 | 29.55 | 52.36 | |||||||||||
1937 | 20.55 | 23.64 | 33.26 | 45.63 | 67.42 | 74.20 | 82.03 | 82.67 | a | 68.55 | a | 49.52 | 36.71 | b | 23.77 | 50.66 | ||||||||||
1938 | 20.14 | b | 29.96 | c | 44.10 | a | 53.14 | b | 63.38 | b | 72.83 | a | 76.61 | 79.41 | d | 66.62 | d | 60.90 | a | 40.00 | c | 26.23 | a | 52.78 | ||
1939 | 27.55 | b | 21.88 | b | 37.30 | d | 50.42 | d | 72.07 | c | 73.46 | f | 79.93 | a | 78.71 | 79.38 | a | 52.97 | a | 43.00 | e | 37.88 | f | 54.32 | b | |
1940 | 17.00 | 28.52 | d | 29.70 | a | 48.07 | 60.42 | 73.47 | 79.74 | 73.13 | 70.20 | 57.43 | a | 35.50 | 27.61 | 50.07 | ||||||||||
1941 | 26.37 | l | 25.71 | 33.03 | a | 60.07 | 70.16 | 76.50 | 79.77 | 75.55 | 69.00 | 55.10 | a | 41.17 | 32.17 | b | 56.20 | a | ||||||||
1942 | 25.10 | a | 24.65 | b | 37.97 | 59.90 | a | 63.70 | d | 72.13 | 75.94 | 76.00 | a | 63.70 | 58.45 | 39.43 | 20.10 | a | 51.42 | |||||||
1943 | 18.26 | 27.18 | 28.90 | a | 46.53 | 62.52 | b | 75.41 | a | 82.03 | 76.71 | 63.76 | a | 57.29 | 32.40 | 28.32 | 49.94 | |||||||||
1944 | 31.13 | a | 26.18 | a | 29.84 | 47.33 | 68.45 | 76.73 | 78.16 | 79.26 | 67.03 | 59.03 | 43.50 | 23.52 | 52.51 | |||||||||||
1945 | 17.97 | 26.54 | 47.74 | 51.20 | 59.81 | 68.77 | 76.16 | 76.81 | 68.03 | 55.03 | 36.67 | 21.33 | a | 50.50 | ||||||||||||
1946 | 24.52 | 23.71 | 48.52 | 55.47 | 65.13 | 73.57 | 80.03 | b | 76.07 | b | 69.04 | e | 60.15 | d | 39.92 | e | 26.97 | 53.59 | ||||||||
1947 | 27.16 | 22.00 | 32.97 | 46.60 | 58.93 | a | 71.57 | 80.06 | 85.55 | 70.17 | 67.61 | 33.53 | 27.23 | a | 51.95 | |||||||||||
1948 | 19.73 | a | 24.79 | 36.29 | 57.93 | 67.94 | 74.93 | a | 81.74 | 81.26 | 76.90 | 59.48 | 40.53 | 27.40 | k | 56.50 | a | |||||||||
1949 | 26.68 | 26.11 | ----- | z | 57.34 | a | 76.50 | y | 76.40 | 80.81 | 79.35 | 65.30 | 60.19 | 40.37 | 28.55 | 54.11 | b | |||||||||
1950 | 22.58 | 26.36 | 31.97 | 40.47 | 62.67 | a | 72.30 | 72.97 | 73.52 | 67.20 | 61.74 | d | 35.13 | 22.45 | 49.11 | |||||||||||
1951 | 21.00 | 26.93 | 32.52 | 48.70 | 70.74 | 71.77 | 77.42 | 72.06 | 64.03 | 55.42 | 32.40 | 23.93 | a | 49.74 | ||||||||||||
1952 | 26.80 | a | 32.28 | 34.48 | 58.24 | a | 67.58 | 76.73 | 79.55 | 75.61 | 71.40 | 53.71 | 43.53 | 32.06 | 54.33 | |||||||||||
1953 | 27.10 | a | 27.57 | 37.77 | 46.87 | 70.06 | 78.00 | 79.77 | 78.33 | a | 68.86 | a | 68.79 | g | 47.43 | 28.23 | i | 56.18 | b | |||||||
1954 | 21.93 | d | 38.96 | a | 35.71 | 56.14 | a | 59.97 | 77.50 | 80.63 | a | 74.84 | 64.60 | 53.48 | 41.80 | 27.16 | 52.73 | |||||||||
1955 | 21.03 | 24.21 | 33.97 | 60.30 | 71.65 | 74.60 | 84.77 | 80.33 | a | 69.97 | 57.94 | 33.77 | 22.03 | a | 52.88 | |||||||||||
1956 | 26.68 | 26.28 | 33.97 | 49.10 | 66.43 | a | 78.40 | 74.03 | 75.19 | 65.97 | 64.84 | 38.87 | 28.94 | 52.39 | ||||||||||||
1957 | 16.42 | 28.04 | 38.00 | 54.17 | 67.39 | 74.37 | 81.48 | 77.16 | 67.70 | 56.45 | 37.24 | a | 28.03 | 52.20 | ||||||||||||
1958 | 25.90 | 22.68 | 37.87 | 56.43 | 67.03 | 71.57 | 77.03 | 77.39 | 67.90 | 57.35 | 41.00 | 18.74 | 51.74 | |||||||||||||
1959 | 16.19 | 23.79 | 37.10 | 52.23 | 71.06 | 76.60 | 79.32 | 79.68 | 69.77 | 50.71 | 30.17 | 32.29 | 51.58 | |||||||||||||
1960 | 23.03 | 27.31 | 30.81 | 52.40 | 64.52 | 73.07 | 79.23 | 78.94 | 68.47 | 57.13 | a | 41.57 | 24.94 | 51.78 | ||||||||||||
1961 | 22.29 | 33.79 | 40.19 | 48.37 | 64.39 | 76.73 | 78.61 | 79.26 | 67.27 | 58.94 | 38.60 | 25.42 | 52.82 | |||||||||||||
1962 | 18.00 | 21.57 | 37.97 | 51.67 | 68.45 | 75.33 | 76.39 | 77.58 | 64.47 | 57.68 | 38.67 | 24.61 | 51.03 | |||||||||||||
1963 | 10.94 | 19.18 | 40.35 | 56.73 | 64.71 | 78.47 | 81.84 | 76.10 | 69.33 | 67.32 | 44.27 | 18.35 | 52.30 | |||||||||||||
1964 | 28.10 | 30.00 | 33.68 | 54.10 | 72.34 | b | 75.86 | a | 82.00 | a | 73.21 | b | 65.03 | 54.84 | 42.37 | 21.35 | 52.74 | |||||||||
1965 | 18.30 | a | 22.11 | 28.81 | 47.63 | 70.29 | j | 73.57 | 75.84 | 74.87 | 60.52 | a | 56.61 | 37.87 | 29.84 | 47.81 | a | |||||||||
1966 | 11.83 | m | 26.00 | 39.35 | 47.03 | 60.58 | 77.67 | 82.39 | 71.03 | a | 68.90 | 55.65 | 36.13 | 24.77 | 53.59 | a | ||||||||||
1967 | 24.70 | a | 20.04 | 37.77 | 51.80 | 60.42 | 75.03 | 76.68 | 74.42 | 68.83 | 53.10 | 34.00 | 26.90 | 50.31 | ||||||||||||
1968 | 21.68 | 23.38 | 45.77 | 56.47 | 62.81 | 72.97 | 77.81 | 77.42 | 66.80 | 57.29 | 38.00 | 24.00 | 52.03 | |||||||||||||
1969 | 20.35 | 28.43 | 33.65 | 56.43 | 67.71 | 66.13 | 77.74 | 81.42 | 68.83 | 51.29 | 38.33 | 25.52 | 51.32 | |||||||||||||
1970 | 16.00 | 25.71 | 34.29 | 53.47 | 65.68 | 77.73 | 82.74 | 80.32 | 68.87 | 57.61 | 36.47 | 25.16 | 52.00 | |||||||||||||
1971 | 14.03 | 24.57 | 32.52 | 52.77 | 63.77 | 78.60 | 75.32 | 75.13 | 69.10 | 60.61 | 37.53 | 26.39 | 50.86 | |||||||||||||
1972 | 17.74 | 20.59 | 33.06 | 47.57 | 72.77 | 75.07 | 76.71 | 76.68 | 64.07 | 48.32 | 33.63 | 17.84 | 48.67 | |||||||||||||
1973 | 23.13 | 26.86 | 42.90 | 47.20 | 57.32 | 73.37 | 77.29 | 76.55 | 65.50 | 59.68 | 36.80 | 22.55 | 50.76 | |||||||||||||
1974 | 17.68 | 21.71 | 33.06 | 50.00 | 59.45 | 69.67 | 80.03 | 74.00 | 60.47 | 52.87 | 39.33 | 29.00 | 48.94 | |||||||||||||
1975 | 22.19 | 23.57 | 31.74 | 44.33 | 69.65 | 71.30 | 79.35 | 76.48 | 62.20 | 58.00 | 44.27 | 23.97 | 50.59 | |||||||||||||
1976 | 16.55 | 30.34 | 33.68 | 54.10 | 62.71 | 78.43 | 81.77 | 78.48 | 67.30 | 49.68 | 30.61 | b | 15.52 | 49.93 | ||||||||||||
1977 | 9.03 | 25.57 | 41.52 | 56.50 | 76.32 | 72.77 | 80.00 | 70.65 | 63.57 | 55.00 | 37.57 | 21.48 | 50.83 | |||||||||||||
1978 | 15.84 | 19.79 | 34.58 | 47.97 | 66.97 | 71.33 | 73.29 | 75.48 | 69.33 | 52.87 | 37.63 | 19.48 | 48.71 | |||||||||||||
1979 | 9.16 | 16.57 | 33.42 | 46.43 | 57.94 | 71.73 | 77.94 | 72.65 | 67.57 | 49.26 | 36.10 | 28.55 | 47.28 | |||||||||||||
1980 | 18.61 | 21.21 | 31.06 | 52.57 | 70.61 | 71.80 | 79.13 | 74.55 | 58.19 | n | 48.45 | 38.20 | 21.42 | 47.96 | a | |||||||||||
1981 | 21.90 | 26.79 | 37.42 | 52.93 | 64.03 | 71.10 | 76.74 | 76.00 | 64.77 | 49.32 | 43.13 | 24.10 | 50.69 | |||||||||||||
1982 | 11.19 | 26.15 | b | 32.26 | 45.30 | 69.23 | 68.33 | 78.35 | 72.55 | 62.77 | 55.50 | a | 35.97 | 28.74 | 48.86 | |||||||||||
1983 | 23.83 | a | 29.79 | 36.03 | 45.13 | 58.10 | 73.30 | 82.39 | 80.68 | 67.27 | 54.23 | 43.38 | n | ----- | z | 55.07 | b | |||||||||
1984 | 13.25 | g | ----- | z | 30.90 | 56.04 | c | 63.10 | 76.04 | c | 79.13 | a | 79.03 | b | 65.17 | 57.52 | 37.32 | b | 25.86 | b | 57.01 | b | ||||
1985 | 18.48 | 25.04 | c | 42.32 | c | 57.00 | d | 70.45 | 73.85 | j | 77.94 | 73.81 | 66.87 | 55.07 | q | 31.18 | b | 15.10 | 47.82 | b | ||||||
1986 | 22.39 | 23.21 | 37.81 | 56.60 | 68.87 | 73.77 | 77.84 | 71.65 | 64.47 | 53.97 | 34.67 | 28.13 | 51.11 | |||||||||||||
1987 | 26.03 | a | 35.46 | 44.48 | 60.80 | 66.74 | 73.80 | 75.81 | 71.90 | 69.97 | 47.87 | 41.40 | 29.26 | 53.63 | ||||||||||||
1988 | 17.48 | 21.00 | 34.23 | 52.63 | 71.87 | a | 79.10 | 82.45 | 77.45 | 65.77 | 47.20 | a | 36.20 | 25.67 | a | 50.92 | ||||||||||
1989 | 25.94 | 18.04 | 30.26 | 46.97 | 64.06 | 70.57 | 79.29 | 75.55 | 67.17 | 56.19 | 32.10 | 14.13 | 48.35 | |||||||||||||
1990 | 29.55 | 26.64 | 39.19 | 53.30 | 61.07 | a | 71.47 | 75.29 | 73.92 | s | 61.94 | m | 50.79 | b | 42.00 | 24.13 | 47.34 | b | ||||||||
1991 | 16.68 | 28.04 | 36.52 | 52.80 | 65.35 | ----- | z | 74.23 | 77.07 | a | 61.39 | b | 52.10 | 31.43 | 23.39 | m | 49.56 | b | ||||||||
1992 | 24.00 | 29.24 | 34.48 | 43.80 | 64.84 | 67.93 | a | 70.48 | 71.35 | 62.83 | 53.13 | 33.14 | a | 24.68 | 48.33 | |||||||||||
1993 | 21.29 | 25.14 | 34.06 | m | 44.83 | 61.35 | 68.00 | 73.84 | 74.58 | 59.60 | 50.23 | 33.33 | 25.16 | 48.85 | a | |||||||||||
1994 | 10.48 | 18.96 | 36.95 | k | 49.80 | 65.00 | 74.40 | 73.68 | 71.58 | 68.23 | 57.56 | m | 41.46 | f | 30.87 | 51.45 | c | |||||||||
1995 | 22.68 | 23.68 | 38.35 | 43.27 | 61.74 | 78.59 | a | 76.55 | 77.10 | 64.93 | 53.07 | a | 27.00 | n | 21.45 | 51.04 | a | |||||||||
1996 | 19.29 | 22.79 | 27.84 | 43.53 | 59.35 | 71.30 | 71.87 | 74.87 | 64.60 | 54.97 | 31.07 | 23.23 | a | 47.06 | ||||||||||||
1997 | 17.19 | 27.07 | a | 30.21 | l | 47.33 | 55.87 | 74.63 | 73.81 | 70.58 | 66.50 | 53.84 | 33.70 | 31.27 | a | 50.16 | a | |||||||||
1998 | 23.97 | 37.29 | 29.37 | l | 57.93 | 72.81 | 71.00 | 78.77 | 78.97 | 74.90 | 56.68 | 40.53 | 32.73 | a | 56.87 | a | ||||||||||
1999 | 18.61 | 31.50 | 38.03 | 54.73 | 67.13 | 72.27 | 79.32 | 72.81 | 65.90 | 52.84 | 46.73 | 27.32 | 52.27 | |||||||||||||
2000 | 22.48 | 32.21 | 44.26 | 50.57 | 65.97 | 70.43 | 75.10 | 75.58 | 66.70 | 59.07 | a | 37.40 | 16.52 | 51.36 | ||||||||||||
2001 | 27.32 | 22.18 | 35.10 | 52.43 | 66.06 | 72.70 | 78.06 | 79.39 | 66.63 | 54.48 | 48.87 | 31.61 | 52.90 | |||||||||||||
2002 | 29.45 | 33.29 | 29.78 | d | 46.83 | 57.74 | 72.93 | 81.55 | 75.58 | 68.55 | a | 50.43 | h | 33.00 | l | 29.42 | 52.51 | b | ||||||||
2003 | 20.03 | 21.46 | 36.10 | 49.67 | 63.55 | 71.37 | 77.71 | 79.61 | 68.50 | 54.65 | 36.21 | a | 29.57 | a | 50.70 | |||||||||||
2004 | 15.47 | a | 27.55 | 36.97 | 50.50 | 59.48 | 69.60 | 75.16 | 70.48 | 72.70 | 55.19 | 44.31 | q | 25.27 | a | 50.76 | a | |||||||||
2005 | 19.65 | 30.68 | 34.89 | c | 56.83 | 59.77 | 78.13 | 80.42 | 77.68 | 74.03 | 58.29 | 39.33 | 24.13 | 52.82 | ||||||||||||
2006 | 30.84 | 24.71 | 38.68 | l | 58.03 | 63.77 | 76.10 | 83.97 | 77.16 | 65.13 | 49.58 | 40.57 | 30.04 | d | 54.54 | a | ||||||||||
2007 | 23.81 | 17.32 | 37.76 | j | 49.87 | 68.42 | 76.57 | 77.14 | c | 75.97 | 70.17 | a | 57.94 | 36.73 | 22.53 | a | 52.41 | a | ||||||||
2008 | 20.52 | 21.00 | 32.16 | 47.69 | a | 61.19 | 70.80 | 77.58 | 77.37 | a | 68.97 | 53.32 | 36.62 | a | 20.37 | a | 48.97 | |||||||||
2009 | 14.03 | 26.41 | a | 36.58 | 50.00 | 63.35 | 71.80 | 71.65 | 73.29 | 72.80 | 46.58 | 45.97 | 22.45 | 49.58 | ||||||||||||
2010 | 21.90 | 27.82 | 45.62 | j | 60.40 | 67.97 | 71.33 | 77.68 | 77.58 | 62.43 | 57.74 | 40.63 | c | 22.71 | c | 53.47 | a | |||||||||
2011 | 16.73 | a | 24.36 | 34.03 | 46.53 | 60.84 | 71.90 | 80.26 | 76.13 | 65.00 | a | 57.87 | 41.22 | c | 28.81 | 50.31 | ||||||||||
2012 | 25.48 | 31.24 | 47.50 | k | 53.57 | 68.87 | 75.52 | c | 82.73 | a | 76.06 | 67.47 | 51.84 | 39.54 | d | 28.90 | 54.66 | a | ||||||||
2013 | 22.27 | a | 21.89 | 31.38 | b | 41.07 | 63.55 | 70.52 | c | 78.48 | d | 76.46 | e | 69.89 | b | 50.81 | e | 35.89 | c | 15.57 | a | 48.15 | ||||
2014 | 11.39 | 14.96 | 28.00 | c | 43.83 | 63.83 | b | 73.65 | m | 72.80 | a | 72.32 | f | 64.50 | 50.81 | 28.72 | a | 26.10 | 40.49 | b | ||||||
2015 | 19.17 | b | 13.04 | 36.55 | 52.03 | 64.39 | 70.59 | a | 76.10 | 71.39 | 71.07 | a | 54.60 | a | 45.61 | b | 33.00 | g | 52.23 | a | ||||||
2016 | 19.90 | b | 26.66 | 41.65 | h | 47.00 | b | 64.71 | 72.90 | a | 76.07 | a | 75.48 | 68.07 | c | 58.21 | g | 47.15 | c | 23.13 | 52.11 | b | ||||
2017 | 22.76 | b | 31.61 | 37.00 | p | 51.88 | f | 59.35 | 72.13 | 76.61 | 70.67 | g | 69.67 | 55.97 | 34.17 | 20.13 | 49.16 | c | ||||||||
2018 | 21.16 | 21.96 | 36.65 | e | 40.43 | 73.03 | 73.93 | 77.26 | 74.61 | 67.20 | 46.68 | 29.40 | 28.68 | 49.25 | ||||||||||||
2019 | 18.00 | 19.36 | 33.35 | 47.10 | 58.45 | 72.70 | 78.13 | 71.87 | 65.97 | 49.81 | 30.40 | 26.32 | 47.62 | |||||||||||||
2020 | 25.19 | 26.45 | 38.42 | 46.70 | 61.39 | 74.30 | 79.68 | 75.97 | 63.63 | 44.61 | 44.13 | 28.00 | 50.71 | |||||||||||||
2021 | 25.00 | 18.39 | 43.61 | 50.87 | 61.84 | 77.27 | 77.84 | 75.94 | 69.27 | 60.35 | 39.43 | 28.77 | 52.38 | |||||||||||||
2022 | 15.97 | 21.46 | 33.90 | 42.87 | 65.35 | 73.70 | 76.48 | 74.13 | 67.80 | 54.90 | 41.47 | 22.32 | 49.20 | |||||||||||||
2023 | 25.29 | 28.18 | 34.90 | 48.47 | 67.58 | 76.60 | 76.74 | 75.94 | 68.90 | 54.35 | 40.17 | 36.10 | 52.77 | |||||||||||||
2024 | 23.32 | 37.76 | 41.10 | 51.24 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.06 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.90 | 25.37 | 35.92 | 50.83 | 65.21 | 73.78 | 78.40 | 76.14 | 67.37 | 54.94 | 38.10 | 25.24 | 50.92 | |||||||||||||
S.D. | 4.87 | 4.96 | 4.52 | 5.01 | 4.58 | 3.02 | 3.33 | 2.95 | 3.42 | 4.40 | 4.50 | 4.43 | 1.71 | |||||||||||||
SKEW | -0.28 | 0.25 | 0.63 | 0.09 | 0.24 | 0.11 | 0.38 | 0.23 | 0.56 | 0.23 | 0.11 | -0.35 | -0.34 | |||||||||||||
MAX | 31.13 | 38.96 | 48.52 | 60.80 | 76.32 | 82.23 | 90.03 | 85.55 | 79.38 | 67.61 | 48.87 | 36.10 | 54.33 | |||||||||||||
MIN | 9.03 | 13.04 | 27.84 | 40.43 | 55.87 | 66.13 | 70.48 | 70.48 | 59.60 | 44.61 | 28.72 | 14.13 | 47.06 | |||||||||||||
YRS | 87 | 89 | 79 | 89 | 88 | 86 | 90 | 87 | 88 | 85 | 85 | 84 | 61 |