YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | 32.28 | m | 36.69 | a | 39.16 | 45.38 | a | 54.43 | a | 52.81 | 43.14 | b | 31.00 | l | 18.52 | e | ----- | z | 41.45 | e | ||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | 45.88 | e | 46.59 | a | 57.47 | a | 55.30 | a | 46.96 | d | 35.32 | f | 26.85 | j | ----- | z | 50.44 | g |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | 25.80 | p | ----- | z | ----- | z | 61.11 | l | 61.70 | j | ----- | z | 30.43 | b | ----- | z | 30.43 | k |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | 54.14 | c | 57.17 | a | 60.07 | a | 56.03 | 48.93 | 41.89 | c | ----- | z | ----- | z | 53.04 | f | ||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.12 | m | 58.32 | 54.94 | 45.30 | 35.87 | 30.83 | ----- | z | 45.05 | g | |||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | 44.35 | 52.63 | 55.97 | 54.84 | 40.97 | 36.52 | ----- | z | ----- | z | 47.55 | f | ||||||
1922 | ----- | z | ----- | z | ----- | z | 33.77 | 41.81 | 51.93 | 57.21 | b | 57.50 | c | 43.30 | j | 38.10 | ----- | z | ----- | z | 46.72 | f | ||||
1923 | ----- | z | ----- | z | ----- | z | 35.70 | 41.83 | a | 48.43 | 55.68 | 55.03 | 46.13 | 36.45 | ----- | z | ----- | z | 45.61 | e | ||||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | 46.10 | 50.33 | 54.71 | 51.52 | 50.83 | r | ----- | z | ----- | z | ----- | z | 50.66 | h | ||||
1925 | ----- | z | ----- | z | ----- | z | ----- | z | 45.94 | 49.00 | 57.29 | 51.63 | a | 43.10 | ----- | z | ----- | z | ----- | z | 49.39 | g | ||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.06 | 45.40 | 34.32 | 27.30 | 18.35 | 35.69 | g | |||||
1949 | 2.97 | 21.29 | 32.10 | 37.80 | 48.55 | 51.37 | 55.84 | 54.61 | 47.23 | 33.26 | 29.53 | 24.26 | 36.57 | |||||||||||||
1950 | 17.70 | a | 23.75 | 29.94 | 36.00 | 40.19 | 49.00 | 58.87 | 55.81 | 49.00 | 40.74 | 31.77 | 31.94 | 38.73 | ||||||||||||
1951 | 23.77 | 29.68 | 27.35 | 37.07 | 44.42 | 49.03 | 58.77 | 52.91 | i | 46.60 | 37.32 | 28.60 | 22.39 | 36.82 | a | |||||||||||
1952 | 19.16 | 22.90 | 28.10 | 38.17 | 45.84 | 52.07 | 56.16 | 55.52 | 45.93 | 36.55 | 22.73 | 27.94 | 37.59 | |||||||||||||
1953 | 34.42 | 28.04 | 30.77 | 35.73 | 41.77 | 48.80 | 58.26 | 56.84 | 48.20 | 38.45 | 35.53 | 26.35 | 40.26 | |||||||||||||
1954 | 29.10 | 29.43 | 29.17 | a | 37.07 | 45.55 | 49.37 | 59.61 | 53.71 | 45.33 | 34.23 | a | 30.97 | 21.84 | 38.78 | |||||||||||
1955 | 18.10 | a | 20.82 | 27.61 | 35.43 | 42.81 | 52.60 | 55.71 | 56.94 | 46.73 | 38.55 | 27.03 | 28.68 | 37.58 | ||||||||||||
1956 | 26.23 | 19.41 | 30.55 | 38.53 | 49.45 | 50.77 | 59.58 | 53.61 | 46.37 | 37.97 | 25.27 | 23.97 | a | 38.48 | ||||||||||||
1957 | 10.94 | 22.33 | a | 33.68 | 37.87 | 47.42 | 52.17 | 54.77 | 52.71 | 45.50 | 37.77 | 25.97 | 28.16 | 37.44 | ||||||||||||
1958 | 23.61 | 33.21 | 29.68 | 37.23 | 48.32 | 53.53 | 56.68 | 57.77 | 45.93 | 36.00 | 27.83 | 28.42 | 39.85 | |||||||||||||
1959 | 27.81 | 28.89 | 28.14 | i | 38.07 | 41.45 | 53.57 | 58.13 | 54.48 | 47.10 | 39.00 | 22.63 | 17.65 | 38.98 | a | |||||||||||
1960 | 15.00 | 26.59 | 31.87 | a | 38.73 | 42.06 | 52.20 | 60.94 | 52.61 | 48.00 | 35.94 | 31.47 | 20.52 | 37.99 | ||||||||||||
1961 | 21.74 | 32.14 | 34.87 | 36.50 | 45.35 | 55.70 | 58.87 | 59.19 | 42.87 | 35.48 | 24.62 | a | 22.45 | 39.15 | ||||||||||||
1962 | 11.29 | 23.93 | 28.74 | 38.63 | 43.74 | 51.13 | 56.39 | 53.06 | 46.17 | 38.52 | 31.97 | 27.65 | 37.60 | |||||||||||||
1963 | 15.87 | 32.25 | 33.45 | 37.13 | 48.26 | 51.97 | a | 54.61 | 55.57 | a | 52.33 | 43.48 | 33.93 | 22.97 | 40.15 | |||||||||||
1964 | 20.06 | 19.45 | 29.97 | 35.07 | 41.87 | 51.67 | 57.03 | 52.45 | 44.47 | 36.45 | 29.67 | 27.29 | 37.12 | |||||||||||||
1965 | 26.83 | a | 26.96 | 24.81 | 41.43 | 43.23 | 51.50 | 56.48 | 54.29 | 42.43 | 37.00 | 33.73 | 21.87 | 38.38 | ||||||||||||
1966 | 26.61 | 25.46 | 31.39 | 35.43 | 45.90 | 49.80 | 55.48 | 53.35 | 50.13 | 33.74 | 34.50 | 26.06 | 38.99 | |||||||||||||
1967 | 29.10 | 27.64 | 32.00 | 34.47 | 43.97 | 52.23 | 59.65 | 58.06 | 51.97 | 36.77 | 32.13 | 21.45 | 39.95 | |||||||||||||
1968 | 20.06 | 30.14 | 33.87 | 34.70 | 44.48 | 52.27 | 58.06 | 54.61 | 46.77 | 36.35 | 32.90 | 27.23 | 39.29 | |||||||||||||
1969 | 25.13 | 26.75 | 27.42 | 38.43 | 47.84 | 53.07 | 56.00 | 54.03 | 47.83 | 35.00 | 27.47 | 26.77 | 38.81 | |||||||||||||
1970 | 30.16 | 27.93 | 31.74 | 33.20 | 44.19 | 53.93 | 57.61 | 55.29 | 41.50 | 34.58 | 33.37 | 25.03 | 39.05 | |||||||||||||
1971 | 25.65 | 26.14 | 28.29 | 36.23 | 46.19 | 49.80 | 55.74 | 57.94 | 43.73 | 36.94 | 30.43 | 25.19 | 38.52 | |||||||||||||
1972 | 20.39 | 24.83 | 33.55 | 36.97 | 45.55 | 53.40 | 54.87 | 56.45 | 44.00 | 39.03 | 32.47 | 15.06 | 38.05 | |||||||||||||
1973 | 22.80 | a | 28.71 | 33.39 | 37.03 | 46.13 | 51.20 | 57.90 | 56.45 | 46.40 | 38.13 | 33.07 | 30.00 | a | 40.10 | |||||||||||
1974 | 20.90 | 29.29 | 33.13 | 38.03 | 41.90 | 53.77 | 56.16 | 54.45 | 45.50 | 37.00 | 31.53 | 25.13 | 38.90 | |||||||||||||
1975 | 19.13 | 28.36 | 30.87 | 34.33 | 41.81 | 50.40 | 61.77 | 53.65 | 47.10 | 41.81 | 30.07 | 27.39 | 38.89 | |||||||||||||
1976 | 25.52 | 26.79 | 27.97 | 36.50 | 46.26 | 48.67 | 58.26 | 52.19 | 49.53 | 36.06 | 27.10 | 17.35 | 37.68 | |||||||||||||
1977 | 11.84 | 22.89 | 29.10 | 40.17 | 41.71 | 56.23 | 54.74 | 57.74 | 48.00 | 36.74 | 29.63 | 29.84 | 38.22 | |||||||||||||
1978 | 28.03 | 31.36 | 35.16 | 39.70 | 44.32 | 49.17 | 56.77 | 53.87 | 47.20 | 36.39 | 25.40 | 19.32 | 38.89 | |||||||||||||
1979 | 5.61 | 25.57 | 33.19 | 36.90 | 46.81 | 51.63 | 57.77 | 57.55 | 50.67 | 41.84 | 25.07 | 26.26 | 38.24 | |||||||||||||
1980 | 24.55 | 33.03 | 33.29 | 42.03 | 47.68 | 50.37 | 60.42 | 53.23 | 49.00 | 37.26 | 28.48 | a | 25.52 | 40.40 | ||||||||||||
1981 | 28.71 | 27.32 | 32.71 | 39.73 | 47.32 | 51.57 | 54.26 | 57.58 | 49.13 | 36.52 | 34.27 | 27.26 | 40.53 | |||||||||||||
1982 | 19.77 | 23.71 | 33.40 | a | 36.97 | 45.97 | 52.40 | 57.42 | 57.74 | 47.27 | 38.81 | 26.77 | 23.50 | a | 38.64 | |||||||||||
1983 | 26.90 | a | 33.21 | 37.71 | 36.03 | 43.65 | 51.10 | 48.55 | 53.60 | a | 46.10 | 39.23 | 35.79 | b | 19.16 | 39.25 | ||||||||||
1984 | 15.65 | 24.28 | 32.48 | 36.89 | b | 43.40 | a | 50.53 | 58.03 | 57.03 | 42.37 | 33.06 | 31.07 | a | 11.26 | 36.34 | ||||||||||
1985 | 9.84 | 15.86 | 24.55 | 38.33 | 46.77 | 52.37 | 60.87 | 49.87 | ----- | z | 32.74 | 16.93 | 1.42 | 31.78 | a | |||||||||||
1986 | 14.94 | 29.11 | 35.26 | 37.83 | 45.00 | 56.13 | 53.81 | 59.32 | 46.80 | 36.65 | 32.70 | 20.90 | 39.04 | |||||||||||||
1987 | 20.10 | 28.36 | 34.97 | ----- | z | 49.94 | 55.27 | 55.77 | 54.48 | 47.93 | 37.81 | 32.27 | 25.37 | a | 40.20 | a | ||||||||||
1988 | 16.74 | 25.17 | 31.55 | 39.67 | 45.71 | 56.87 | 58.74 | 54.35 | 45.87 | 42.84 | 33.53 | 21.13 | 39.35 | |||||||||||||
1989 | 12.90 | 11.46 | 34.32 | 40.13 | 42.84 | 53.43 | 58.20 | a | 54.58 | 47.40 | 37.77 | 27.40 | 20.32 | 36.73 | ||||||||||||
1990 | 26.73 | a | 23.46 | 33.39 | 43.00 | 45.32 | 53.40 | 58.55 | 58.10 | 54.17 | 38.97 | 29.67 | 10.47 | a | 39.60 | |||||||||||
1991 | 15.10 | b | 28.96 | 32.77 | 37.03 | a | 43.68 | 49.80 | 58.94 | 59.77 | 51.73 | ----- | z | 31.10 | 24.74 | 39.42 | a | |||||||||
1992 | 25.97 | 32.38 | 36.03 | 42.72 | a | 49.71 | 56.10 | 57.32 | 57.61 | 48.27 | 42.84 | 30.07 | 23.39 | 41.87 | ||||||||||||
1993 | 19.29 | 22.32 | 33.58 | 39.40 | 51.87 | 51.57 | 52.84 | 53.68 | 48.57 | 40.77 | 22.90 | a | 28.10 | 38.74 | ||||||||||||
1994 | 29.42 | 27.07 | a | 37.58 | 43.13 | 50.03 | 52.63 | 61.26 | 60.42 | 50.97 | 40.19 | 26.27 | 24.39 | 41.95 | ||||||||||||
1995 | 30.52 | 31.79 | 36.03 | 39.90 | 47.87 | 52.17 | 58.19 | 53.63 | a | 51.63 | 38.03 | 36.67 | 28.48 | 42.08 | ||||||||||||
1996 | 28.87 | 28.28 | 35.60 | a | 40.57 | 45.97 | 52.60 | 60.38 | b | 56.71 | 48.17 | 42.68 | 34.03 | a | 30.87 | 42.06 | ||||||||||
1997 | 27.20 | a | 30.07 | 35.35 | 38.73 | 49.26 | 53.00 | 57.39 | 57.77 | 51.93 | 37.87 | 33.37 | ----- | z | 42.90 | a | ||||||||||
1998 | 31.40 | a | 32.54 | 35.35 | 39.31 | a | 46.94 | 50.00 | 63.52 | 59.65 | 54.87 | 40.08 | f | 35.20 | e | 23.79 | b | 42.96 | a | |||||||
1999 | 29.38 | g | 28.46 | 32.44 | f | 37.23 | 44.65 | 53.30 | 56.42 | 56.94 | 46.70 | 37.52 | b | 33.94 | l | 26.42 | g | 45.15 | d | |||||||
2000 | 28.70 | h | 32.85 | i | 33.60 | f | 43.41 | m | 48.71 | 53.59 | a | 59.81 | 57.39 | 48.67 | 41.88 | e | 27.94 | l | 27.25 | k | 51.67 | f | ||||
2001 | 21.45 | k | 22.50 | h | 34.40 | k | 38.57 | i | 48.45 | 53.24 | e | 59.81 | 60.55 | b | 51.23 | h | 38.64 | i | 34.12 | m | 26.26 | l | 55.51 | h | ||
2002 | 26.54 | g | 24.62 | d | 31.84 | f | 39.71 | b | 46.10 | 54.55 | a | 61.26 | 55.03 | 50.53 | 37.27 | e | 28.00 | j | 29.12 | g | 46.14 | d | ||||
2003 | 32.38 | j | 28.82 | f | 38.83 | h | 40.93 | a | 46.23 | 55.30 | 64.16 | 60.39 | 49.53 | 45.67 | g | 27.06 | n | 31.90 | k | 52.76 | f | |||||
2004 | 25.10 | k | 30.40 | i | 36.70 | h | 39.86 | b | 47.48 | 53.80 | 61.45 | 58.97 | 48.90 | 42.00 | f | 31.90 | j | 28.95 | k | 51.74 | f | |||||
2005 | 26.48 | j | 23.68 | i | 34.39 | h | 40.42 | f | 47.61 | 51.17 | 59.90 | 59.07 | a | 46.97 | 40.55 | i | 29.47 | k | 23.25 | k | 52.94 | g | ||||
2006 | 31.29 | j | 28.37 | i | 35.74 | h | 41.29 | f | 47.90 | 56.77 | 63.29 | 56.68 | 47.87 | 39.20 | f | 34.89 | k | 24.35 | n | 54.50 | g | |||||
2007 | 20.73 | i | 30.37 | i | 35.95 | j | 39.90 | a | 48.06 | 54.80 | e | 65.39 | 57.52 | 49.60 | 41.50 | i | 30.06 | l | 30.50 | o | 52.54 | f | ||||
2008 | 21.43 | j | 29.25 | i | 32.95 | j | 34.36 | b | 47.10 | 51.28 | a | 60.32 | 57.65 | 46.50 | 38.62 | g | 32.12 | m | 24.05 | k | 49.53 | f | ||||
2009 | 25.25 | k | 25.77 | b | 30.84 | 37.14 | b | 46.55 | 53.20 | 59.35 | 57.32 | 51.43 | 36.61 | 29.17 | 17.79 | g | 42.74 | b | ||||||||
2010 | 29.86 | b | 30.11 | 34.10 | 36.21 | b | 40.52 | 51.87 | 57.23 | 54.84 | 47.53 | 43.06 | 30.10 | 26.10 | 40.13 | |||||||||||
2011 | 22.16 | 26.39 | 34.48 | 34.07 | 42.71 | 49.40 | 56.69 | b | 60.16 | 52.24 | a | 41.81 | 29.67 | 18.45 | 39.02 | |||||||||||
2012 | 25.42 | 27.83 | 35.23 | a | 39.40 | 45.13 | 52.73 | 63.55 | 59.67 | a | 51.11 | b | 40.35 | 36.73 | 30.65 | 42.32 | ||||||||||
2013 | 10.61 | 29.96 | a | 35.16 | 40.93 | 48.87 | 56.50 | 64.81 | 62.90 | 55.96 | c | 37.68 | 29.83 | 15.65 | 40.74 | |||||||||||
2014 | 24.25 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.63 | 26.75 | 32.21 | 37.87 | 45.64 | 52.14 | 58.06 | 55.97 | 47.69 | 37.91 | 29.82 | 23.44 | 39.11 | |||||||||||||
S.D. | 7.04 | 4.32 | 3.04 | 2.32 | 2.84 | 2.41 | 2.90 | 2.59 | 3.05 | 2.63 | 4.15 | 5.62 | 1.46 | |||||||||||||
SKEW | -0.57 | -1.00 | -0.55 | 0.24 | 0.13 | -0.06 | 0.10 | 0.19 | 0.26 | 0.35 | -0.82 | -1.45 | 0.44 | |||||||||||||
MAX | 34.42 | 33.21 | 37.71 | 43.13 | 54.14 | 57.17 | 65.39 | 62.90 | 55.96 | 43.48 | 36.73 | 31.94 | 42.32 | |||||||||||||
MIN | 2.97 | 11.46 | 24.55 | 33.20 | 39.16 | 45.38 | 48.55 | 49.87 | 40.97 | 32.74 | 16.93 | 1.42 | 36.34 | |||||||||||||
YRS | 54 | 57 | 54 | 63 | 73 | 73 | 74 | 74 | 71 | 62 | 59 | 54 | 47 |