YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.12 | a | 22.15 | 4.94 | m | 33.63 | j | |
1990 | 13.83 | b | 10.44 | d | 23.89 | c | 36.41 | a | 50.56 | d | 62.17 | 68.15 | ----- | z | ----- | z | 43.21 | 31.26 | g | 5.53 | 34.91 | c | ||||
1991 | -0.52 | 14.67 | a | 26.40 | b | 41.75 | h | 57.03 | a | 66.20 | 66.50 | b | 68.63 | 54.62 | a | ----- | z | ----- | z | ----- | z | 44.19 | d | |||
1992 | ----- | z | 14.62 | a | ----- | z | 33.09 | a | 50.89 | c | 57.95 | a | 60.37 | 60.61 | 53.83 | c | 42.47 | b | 25.88 | e | ----- | z | 44.41 | c | ||
1993 | 3.00 | e | 6.88 | c | 25.81 | d | 36.50 | h | 50.86 | c | 59.57 | g | 64.12 | b | 65.29 | g | 48.03 | k | 37.98 | f | ----- | z | ----- | z | 30.13 | g |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | 12.76 | d | 24.79 | u | 30.09 | i | 45.98 | j | 56.31 | e | 62.19 | d | 66.17 | g | 67.84 | c | ----- | z | 44.50 | f | 28.29 | f | 12.67 | a | 42.35 | g |
1999 | -1.66 | i | 18.19 | a | 25.65 | k | 39.94 | f | 53.30 | k | 62.48 | d | ----- | z | 66.00 | e | 53.61 | k | 41.26 | j | 33.87 | d | 18.62 | c | 39.83 | g |
2000 | 4.06 | f | 18.07 | f | 31.97 | b | 38.50 | c | 54.19 | d | 58.19 | d | 67.27 | c | 66.09 | d | 53.09 | b | 44.97 | 31.04 | b | 0.28 | d | 44.56 | b | |
2001 | 13.65 | e | 2.90 | g | 22.98 | b | 39.69 | a | 54.48 | f | 62.79 | b | 66.72 | a | 66.38 | b | 55.02 | i | 41.08 | a | 37.44 | d | 20.57 | c | 41.26 | c |
2002 | 11.81 | d | ----- | z | 14.25 | a | 35.83 | c | 44.45 | b | 63.23 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.92 | g |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.73 | q | 66.21 | b | 68.60 | e | 56.82 | h | 43.40 | g | 23.11 | g | 17.30 | c | 50.70 | i |
2004 | -5.69 | e | 11.00 | j | 23.89 | h | ----- | z | 43.71 | j | 54.95 | h | 63.68 | f | 57.62 | e | 59.74 | g | 43.74 | j | 30.44 | f | 11.74 | f | 25.96 | j |
2005 | -3.67 | j | 12.54 | e | 17.23 | i | ----- | z | 49.09 | i | 63.00 | h | 67.38 | g | 62.46 | h | 57.58 | e | 42.70 | h | 28.46 | c | 15.91 | c | 28.62 | h |
2006 | 18.20 | h | 3.85 | e | 25.09 | h | 45.58 | e | 53.92 | g | ----- | z | 74.12 | w | ----- | z | ----- | z | ----- | z | ----- | z | 22.06 | m | 24.71 | j |
2007 | 12.77 | i | 2.96 | e | 29.02 | g | 36.88 | b | 53.94 | d | 63.81 | l | 65.20 | d | ----- | z | 52.92 | e | 45.72 | f | 26.67 | f | 9.38 | c | 36.88 | f |
2008 | 4.08 | k | 3.41 | b | 17.70 | i | 35.97 | a | 43.98 | e | 56.84 | b | ----- | z | 61.82 | l | 56.33 | j | 41.19 | j | 23.43 | h | 3.00 | g | 35.05 | h |
2009 | -5.87 | h | 10.55 | g | 20.07 | c | 38.69 | c | 48.46 | f | 61.09 | m | 58.52 | k | 60.19 | m | 58.98 | g | 37.10 | k | 34.33 | f | 8.50 | i | 29.38 | j |
2010 | 1.88 | g | 6.76 | e | 33.78 | d | 46.20 | e | 52.40 | e | 59.86 | p | 65.54 | d | 67.17 | g | 49.76 | i | 47.59 | n | 27.09 | h | 4.30 | i | 40.94 | g |
2011 | ----- | z | 7.05 | h | 19.87 | h | 36.50 | o | 51.23 | g | 59.06 | e | 67.43 | h | 66.42 | m | 53.43 | b | ----- | z | ----- | z | 17.98 | e | 43.49 | i |
2012 | 13.40 | e | ----- | z | 37.31 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.90 | k | 25.36 | j |
2013 | 6.07 | d | 5.50 | j | 16.03 | p | 28.00 | t | ----- | z | ----- | z | 65.74 | n | 65.38 | c | 58.84 | a | ----- | z | ----- | z | ----- | z | 43.43 | i |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.40 | a | 64.11 | 64.00 | 55.80 | 42.74 | 18.17 | 16.68 | 45.99 | e | ||||||
2015 | 4.02 | -4.11 | 23.37 | d | 38.53 | 50.48 | 61.30 | b | 67.19 | 63.39 | 60.75 | ----- | z | 34.75 | d | ----- | z | 39.97 | b | |||||||
2016 | 8.84 | 9.90 | c | ----- | z | ----- | z | 56.75 | y | 59.25 | 65.98 | 66.55 | 57.88 | ----- | z | ----- | z | ----- | z | 44.73 | f | |||||
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.31 | f | 65.48 | 62.79 | 57.17 | a | ----- | z | ----- | z | ----- | z | 61.82 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 7.38 | 8.34 | 25.98 | 38.67 | 51.37 | 60.93 | 65.60 | 64.91 | 55.99 | 43.26 | 28.97 | 13.49 | 0.0 | |||||||||||||
S.D. | 6.58 | 6.28 | 6.81 | 4.00 | 4.20 | 2.61 | 1.96 | 3.20 | 2.63 | 1.55 | 6.62 | 6.52 | 0.0 | |||||||||||||
SKEW | -0.69 | -0.29 | 0.10 | 0.86 | -0.56 | 0.23 | -1.40 | -0.91 | 0.35 | 0.02 | -0.36 | -0.93 | 0.00 | |||||||||||||
MAX | 13.83 | 18.19 | 37.31 | 46.20 | 57.03 | 66.20 | 68.15 | 68.63 | 60.75 | 45.12 | 37.44 | 20.57 | -9999 | |||||||||||||
MIN | -5.69 | -4.11 | 14.25 | 33.09 | 43.98 | 56.84 | 60.37 | 57.62 | 52.92 | 41.08 | 18.17 | 0.28 | 9999 | |||||||||||||
YRS | 11 | 12 | 10 | 11 | 11 | 13 | 13 | 13 | 11 | 6 | 8 | 10 | 0 |