YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.75 | b | 60.67 | a | 23.53 | 21.62 | b | 44.89 | h | |
1936 | 0.23 | a | -4.26 | b | 33.69 | b | 51.53 | ----- | z | 81.10 | 96.63 | a | 86.16 | 76.17 | a | ----- | z | ----- | z | ----- | z | 52.66 | d | |||
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 | 54.10 | 48.47 | ----- | z | 51.28 | j | ||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.63 | l | 81.42 | ----- | z | ----- | z | ----- | z | ----- | z | 81.42 | k | |
1941 | ----- | z | 14.93 | 27.16 | 53.03 | 68.74 | 74.57 | 86.20 | a | 83.06 | 64.66 | a | 55.93 | a | 35.57 | 29.90 | 53.98 | a | ||||||||
1942 | 25.94 | 23.00 | b | 38.23 | 54.72 | a | 60.61 | 71.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.65 | f | ||||
1943 | 8.97 | a | 23.21 | 26.84 | 59.33 | 64.35 | 72.07 | 85.39 | 84.87 | 71.27 | 64.87 | 35.77 | 32.84 | 52.48 | ||||||||||||
1944 | 31.90 | 21.66 | 25.61 | 54.80 | 72.23 | 73.87 | 83.32 | 79.87 | 69.52 | a | 65.29 | 31.50 | 23.31 | b | 52.74 | |||||||||||
1945 | 17.55 | 24.39 | 45.52 | 48.83 | 59.06 | 70.87 | 81.87 | 81.26 | 67.00 | 58.30 | a | 27.20 | 12.93 | c | 49.56 | |||||||||||
1946 | 18.03 | 18.00 | b | 41.58 | 61.96 | b | 64.45 | 78.27 | 84.50 | a | 78.74 | 69.93 | b | 49.84 | 33.37 | 18.77 | 51.45 | |||||||||
1947 | 25.73 | a | 16.48 | a | 29.55 | 52.37 | 64.00 | 71.97 | 86.97 | 87.06 | 68.40 | 63.61 | 27.83 | 17.97 | a | 51.00 | ||||||||||
1948 | 18.52 | 15.07 | b | 25.35 | 45.30 | 67.40 | a | 76.00 | 82.46 | e | 83.35 | 80.67 | 60.65 | 34.63 | 17.10 | 50.54 | ||||||||||
1949 | 10.06 | 10.89 | 28.94 | 59.50 | 71.00 | 78.67 | 85.40 | a | 88.65 | 72.00 | 54.19 | 44.10 | a | 15.50 | c | 51.58 | ||||||||||
1950 | -5.93 | a | 16.75 | 28.00 | a | 41.17 | 58.87 | 76.17 | 79.74 | 78.19 | 70.57 | 58.03 | 28.67 | 15.43 | a | 45.47 | ||||||||||
1951 | 9.26 | 18.25 | 22.23 | a | 51.90 | 72.58 | 71.74 | g | 84.42 | 75.72 | b | 63.90 | 52.06 | 30.31 | a | 13.00 | b | 44.88 | a | |||||||
1952 | 12.07 | c | 26.07 | a | 30.37 | a | 66.44 | c | 71.68 | 80.50 | b | 82.70 | a | 83.68 | 76.96 | b | 56.07 | c | 40.27 | 25.84 | 54.39 | |||||
1953 | 20.43 | c | 26.43 | 34.06 | 47.13 | 64.81 | 73.96 | d | 80.06 | 84.58 | 69.75 | b | 65.55 | 43.23 | 27.32 | 53.11 | ||||||||||
1954 | 5.19 | 36.19 | a | 33.06 | 50.53 | 62.58 | 72.87 | 81.03 | 77.32 | 64.13 | 54.26 | 44.17 | 30.65 | 51.00 | ||||||||||||
1955 | 16.87 | 14.04 | 25.55 | 59.52 | a | 69.06 | 74.03 | 82.81 | 84.48 | 70.33 | 59.10 | 23.43 | 10.76 | b | 49.17 | |||||||||||
1956 | 12.45 | 16.41 | 27.37 | a | 43.30 | 65.77 | 80.40 | 78.58 | 80.61 | 66.66 | a | 61.94 | 35.33 | 23.32 | 49.35 | |||||||||||
1957 | 10.35 | 19.36 | 36.10 | 51.43 | 69.29 | 73.23 | 87.55 | 77.81 | 66.30 | 53.61 | 35.50 | 28.71 | 50.77 | |||||||||||||
1958 | 23.61 | 17.89 | 36.29 | 57.67 | 73.19 | 73.73 | 77.90 | 82.81 | 71.63 | 59.39 | 34.90 | 17.13 | 52.18 | |||||||||||||
1959 | 8.58 | 15.61 | 40.94 | 54.87 | 64.23 | 79.28 | a | 85.77 | 85.90 | 68.53 | 45.23 | 26.93 | 28.97 | 50.40 | ||||||||||||
1960 | 13.71 | 18.38 | 24.58 | 50.53 | 68.26 | 73.80 | 86.58 | 82.97 | 74.40 | 59.10 | 36.37 | 22.06 | 50.89 | |||||||||||||
1961 | 18.42 | 25.11 | 39.52 | 49.52 | a | 68.35 | 85.50 | 82.87 | 89.81 | 63.21 | b | 57.90 | 38.90 | 15.58 | 52.89 | |||||||||||
1962 | 14.77 | 13.46 | 28.61 | 52.83 | 60.84 | 75.77 | 78.03 | 81.48 | 68.47 | 59.26 | 40.83 | a | 24.77 | 49.93 | ||||||||||||
1963 | 10.84 | 21.82 | 45.03 | 54.50 | 66.61 | ----- | z | 84.58 | 81.84 | 75.66 | a | 69.97 | 43.10 | 16.90 | 51.90 | a | ||||||||||
1964 | 22.90 | a | 27.76 | 28.81 | 55.83 | 69.65 | 74.03 | 83.06 | 75.81 | 66.40 | 57.32 | 33.83 | 8.94 | 50.36 | ||||||||||||
1965 | 8.61 | 19.36 | 24.03 | 49.67 | 66.16 | 74.80 | 79.35 | 79.90 | 56.31 | a | 59.90 | 33.17 | 27.83 | a | 48.26 | |||||||||||
1966 | 0.13 | 16.64 | 39.19 | 45.93 | 65.03 | 76.30 | 83.97 | 77.87 | 73.07 | 56.32 | 28.83 | 20.48 | 48.65 | |||||||||||||
1967 | 18.90 | 16.25 | 32.97 | a | 46.90 | 62.74 | 76.07 | 83.45 | 84.55 | 76.03 | a | 52.87 | 35.77 | 21.16 | 50.64 | |||||||||||
1968 | 13.32 | 18.86 | 43.35 | 55.03 | a | 63.55 | 73.30 | 81.26 | 76.26 | 68.33 | 56.65 | 36.10 | 14.53 | a | 50.05 | |||||||||||
1969 | 3.77 | 18.86 | 24.68 | 53.77 | 69.06 | 69.47 | 78.83 | b | 86.03 | 72.30 | 47.71 | 38.70 | 23.65 | 48.90 | ||||||||||||
1970 | 9.16 | 22.04 | a | 26.32 | 44.53 | 62.00 | 80.50 | 82.90 | 82.94 | 69.47 | 55.45 | 31.73 | 17.03 | 48.67 | ||||||||||||
1971 | 4.87 | 21.36 | 32.23 | 53.30 | 68.77 | 76.90 | 77.26 | 83.23 | 67.47 | 53.74 | 33.07 | 18.71 | 49.24 | |||||||||||||
1972 | 11.45 | 13.97 | 29.90 | 47.00 | 69.55 | 78.40 | 77.19 | 82.13 | 63.23 | 51.80 | a | 30.30 | 11.90 | a | 47.24 | |||||||||||
1973 | 21.43 | a | 26.04 | 43.26 | 51.67 | 66.94 | 76.87 | 80.87 | 83.81 | 66.63 | 60.58 | 28.67 | 15.65 | 51.87 | ||||||||||||
1974 | 8.06 | 17.75 | 26.61 | 47.77 | 57.58 | 76.60 | 85.55 | 77.19 | 66.30 | 59.29 | 36.10 | a | 27.17 | a | 48.83 | |||||||||||
1975 | 19.26 | 16.14 | 27.84 | 39.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.75 | h | ||||
1976 | 20.35 | h | 29.52 | 30.03 | 57.27 | 69.77 | 75.53 | 80.81 | 82.81 | 73.70 | 51.26 | 35.40 | 19.03 | 55.01 | a | |||||||||||
1977 | 3.84 | 27.68 | 40.58 | 58.22 | l | 79.22 | h | 75.70 | 80.32 | 72.48 | 63.87 | 57.94 | 34.67 | 10.71 | 46.78 | b | ||||||||||
1978 | 2.13 | 10.68 | 28.19 | 48.90 | 71.32 | 75.13 | 78.94 | 80.94 | 72.60 | 55.94 | 30.60 | 13.42 | 47.40 | |||||||||||||
1979 | 2.65 | 3.75 | 26.13 | 35.43 | 56.74 | 74.73 | 81.00 | 75.61 | 71.20 | 53.48 | 33.37 | 30.10 | 45.35 | |||||||||||||
1980 | 13.16 | 16.76 | 25.77 | 61.40 | 74.68 | 75.07 | 80.87 | 72.29 | 64.67 | 51.16 | 40.43 | 21.61 | 49.82 | |||||||||||||
1981 | 21.55 | 25.21 | 40.48 | 56.50 | 64.19 | 70.30 | 79.58 | 81.74 | 68.30 | 51.39 | 44.73 | 19.00 | 51.92 | |||||||||||||
1982 | -0.93 | a | 15.14 | 27.32 | 47.77 | 64.00 | a | 69.73 | 79.35 | 76.74 | 68.70 | 51.03 | 31.10 | 25.03 | 46.25 | |||||||||||
1983 | 25.06 | 25.96 | 31.71 | 46.17 | 61.65 | 74.03 | 83.35 | 86.74 | 67.03 | 52.90 | 35.97 | 3.71 | 49.52 | |||||||||||||
1984 | 18.77 | 31.83 | 28.67 | a | 53.23 | 63.30 | a | 74.40 | 82.23 | 85.32 | 62.87 | 52.84 | 33.07 | 13.86 | b | 50.03 | ||||||||||
1985 | 14.43 | a | 15.79 | 39.06 | 57.03 | 70.35 | 68.07 | 81.39 | 72.23 | 61.33 | 52.00 | 21.90 | 13.67 | a | 47.27 | |||||||||||
1986 | 22.84 | ----- | z | 40.65 | 49.67 | 68.55 | 78.40 | 78.13 | 77.81 | 62.90 | 55.45 | 26.64 | b | 27.03 | 53.46 | a | ||||||||||
1987 | 23.25 | c | 30.36 | 30.73 | a | 62.43 | 71.63 | a | 80.07 | 80.39 | 75.81 | 70.83 | 53.48 | 44.97 | 27.97 | a | 54.33 | |||||||||
1988 | 14.43 | a | 20.21 | 36.94 | 57.97 | 74.61 | 89.20 | 86.77 | 82.87 | 66.10 | 56.23 | 34.67 | 23.10 | 53.59 | ||||||||||||
1989 | 21.45 | 9.25 | 25.16 | 51.20 | 70.29 | 76.00 | 87.61 | 83.94 | 71.30 | 59.03 | 32.80 | 12.13 | 50.01 | |||||||||||||
1990 | 30.06 | 25.79 | 39.81 | 53.20 | 65.48 | 77.67 | 80.42 | 84.45 | 75.10 | 57.23 | 40.20 | 17.90 | 53.94 | |||||||||||||
1991 | 14.53 | a | 32.29 | 39.06 | 56.90 | 67.84 | 77.00 | 80.55 | 83.84 | 68.50 | 48.61 | 27.33 | 25.61 | 51.84 | ||||||||||||
1992 | 26.17 | a | 27.69 | 38.84 | 46.60 | 70.61 | 74.77 | 73.48 | 76.42 | 66.13 | 57.71 | 29.90 | 15.39 | 50.31 | ||||||||||||
1993 | 12.03 | a | 17.86 | 33.29 | 51.00 | 66.39 | 69.59 | a | 71.77 | 76.45 | 65.00 | 54.03 | 32.57 | 24.13 | a | 47.84 | ||||||||||
1994 | 3.03 | 11.93 | 37.00 | 52.53 | 70.55 | 74.70 | 76.77 | 78.45 | 74.80 | 56.27 | a | 38.13 | 24.60 | a | 49.90 | |||||||||||
1995 | 15.10 | 20.75 | 29.06 | 45.30 | 63.55 | 79.00 | 79.35 | 82.13 | 71.07 | 53.84 | 27.41 | a | 18.07 | b | 48.72 | |||||||||||
1996 | 6.83 | b | 19.21 | 25.81 | 43.67 | 62.97 | 78.73 | 78.52 | 83.39 | 68.47 | ----- | z | ----- | z | ----- | z | 51.95 | c | ||||||||
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.48 | 33.07 | 32.65 | 40.07 | i | |||
1998 | 15.03 | a | 31.50 | 29.74 | 59.07 | 70.10 | 70.07 | 80.68 | 83.42 | 74.53 | 55.23 | 32.93 | 20.35 | 51.89 | ||||||||||||
1999 | 13.10 | 27.75 | 35.03 | 52.57 | 64.65 | 73.72 | a | 80.26 | 78.87 | 64.37 | 54.97 | 46.97 | 32.13 | 52.03 | ||||||||||||
2000 | 19.55 | 32.21 | 44.26 | 53.27 | 68.35 | 71.77 | 79.94 | 79.19 | 68.10 | 57.10 | 27.80 | 7.97 | 50.79 | |||||||||||||
2001 | 24.55 | 13.25 | 33.13 | 51.53 | 68.77 | 73.10 | 80.48 | 82.94 | 71.13 | 52.10 | 46.60 | 24.16 | 51.81 | |||||||||||||
2002 | 23.10 | 32.89 | 27.17 | a | 47.37 | 62.13 | 76.50 | 82.35 | 76.90 | 69.97 | 42.00 | 36.43 | 26.65 | 50.29 | ||||||||||||
2003 | 17.10 | 13.89 | 28.77 | a | 55.43 | 63.87 | 74.07 | 79.48 | 84.29 | 69.33 | 60.61 | 26.90 | 25.65 | 49.95 | ||||||||||||
2004 | 7.65 | 22.52 | 35.52 | 53.27 | 59.74 | 70.07 | 77.74 | 70.55 | 70.30 | 53.94 | 44.60 | 24.48 | 49.20 | |||||||||||||
2005 | 12.61 | 25.21 | 35.23 | 58.80 | 62.58 | 74.40 | 79.58 | 77.10 | 72.63 | 55.58 | 35.90 | 23.65 | 51.11 | |||||||||||||
2006 | 30.32 | 20.04 | 32.32 | 60.13 | 68.35 | 77.50 | 86.97 | 81.35 | 68.30 | 48.68 | 35.93 | 27.63 | a | 53.13 | ||||||||||||
2007 | 18.93 | a | ----- | z | 39.30 | a | 54.87 | 67.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.19 | h | ||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.49 | 20.32 | 32.66 | 52.19 | 66.46 | 75.40 | 81.69 | 80.90 | 69.12 | 55.80 | 34.66 | 20.76 | 50.35 | |||||||||||||
S.D. | 8.31 | 7.26 | 6.18 | 5.81 | 4.19 | 3.76 | 3.78 | 4.16 | 4.33 | 4.83 | 6.13 | 6.68 | 2.06 | |||||||||||||
SKEW | -0.12 | -0.35 | 0.38 | -0.23 | -0.21 | 0.87 | 0.73 | -0.36 | -0.05 | 0.12 | 0.27 | -0.22 | -0.26 | |||||||||||||
MAX | 31.90 | 36.19 | 45.52 | 66.44 | 74.68 | 89.20 | 96.63 | 89.81 | 80.67 | 69.97 | 48.47 | 32.84 | 54.39 | |||||||||||||
MIN | -5.93 | -4.26 | 22.23 | 35.43 | 56.74 | 68.07 | 71.77 | 70.55 | 56.31 | 42.00 | 21.90 | 3.71 | 45.35 | |||||||||||||
YRS | 65 | 65 | 67 | 66 | 64 | 63 | 64 | 65 | 65 | 65 | 65 | 64 | 56 |