YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.07 | d | 34.70 | 28.35 | 37.71 | i | ||
1941 | 24.48 | 24.43 | 32.74 | 47.60 | 58.17 | a | 65.00 | 71.35 | 69.77 | a | 60.83 | a | 52.07 | b | 38.43 | 31.45 | 48.03 | |||||||||
1942 | 25.10 | 23.93 | 37.61 | 49.70 | 53.71 | 61.76 | a | 68.65 | 69.13 | 58.93 | 50.39 | 37.27 | 21.77 | a | 46.49 | |||||||||||
1943 | 15.81 | 25.00 | a | 27.90 | 41.90 | 52.37 | a | 61.13 | 66.26 | 67.97 | 58.67 | 51.06 | 34.67 | 27.31 | o | 45.70 | a | |||||||||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | 53.52 | 59.13 | 67.97 | 68.68 | 60.30 | 52.32 | 38.53 | 23.97 | 53.05 | d | ||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | 50.33 | m | 56.48 | a | 65.48 | 70.23 | a | 60.41 | a | 48.48 | 34.13 | 20.63 | l | 55.87 | f | |||
1946 | ----- | z | ----- | z | ----- | z | 43.97 | 52.47 | a | 61.23 | 68.07 | a | 67.71 | c | 58.44 | c | 51.87 | 37.83 | ----- | z | 55.20 | d | ||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | 49.48 | 60.11 | b | 66.26 | 66.39 | 59.07 | a | 56.60 | a | 32.97 | ----- | z | 55.84 | e | ||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | 55.45 | 63.00 | 68.13 | a | 67.63 | a | 61.70 | t | ----- | z | ----- | z | ----- | z | 63.55 | h | ||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | 53.68 | 63.93 | a | 67.19 | 69.97 | 57.50 | 52.39 | 36.35 | g | ----- | z | 60.78 | f | |||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | 52.75 | k | 61.60 | 62.48 | 61.42 | 58.77 | 53.73 | e | 31.93 | c | ----- | z | 54.99 | f | ||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 58.24 | f | 57.81 | d | 69.52 | 67.81 | 58.87 | 47.77 | ----- | z | ----- | z | 60.35 | g | ||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | 56.65 | 63.62 | a | 68.20 | a | 71.45 | 63.41 | a | 48.53 | a | 41.76 | m | ----- | z | 61.98 | f | ||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 54.28 | b | 63.43 | 70.48 | 72.00 | 61.50 | 56.71 | 44.00 | q | ----- | z | 63.07 | f | |||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | 46.28 | b | 66.00 | a | 70.23 | a | 70.52 | 59.43 | 51.10 | a | ----- | z | ----- | z | 60.59 | f | ||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 59.87 | 63.70 | 73.23 | 73.90 | 63.00 | 52.48 | 41.86 | w | ----- | z | 64.36 | f | ||||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | 53.83 | b | 68.28 | e | 67.87 | a | 68.33 | a | 57.86 | b | 55.65 | 43.53 | m | ----- | z | 61.97 | f | |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 58.91 | t | 61.73 | 69.00 | 71.52 | 61.57 | b | 52.19 | ----- | z | ----- | z | 63.20 | g | ||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.50 | 66.97 | 69.61 | 60.97 | ----- | z | ----- | z | ----- | z | 64.26 | h | ||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.73 | 70.52 | 70.26 | 62.60 | ----- | z | ----- | z | ----- | z | 67.03 | h | ||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.60 | 66.35 | 67.83 | a | 60.59 | c | 51.45 | ----- | z | ----- | z | 62.17 | g | |||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 54.29 | 64.72 | a | 66.69 | b | 70.70 | a | 62.62 | a | 51.23 | ----- | z | ----- | z | 61.71 | f | ||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 53.42 | 59.19 | c | 64.31 | b | 66.83 | a | 59.34 | a | 52.32 | c | 39.00 | x | ----- | z | 59.24 | f | |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | 54.00 | a | 60.59 | c | 68.81 | 68.44 | f | 61.73 | h | 59.92 | f | ----- | z | ----- | z | 61.13 | i | |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | 59.68 | 59.30 | 69.39 | 64.32 | 57.48 | a | 49.00 | ----- | z | ----- | z | 59.86 | f | |||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | 54.03 | 62.33 | 65.50 | a | 65.83 | b | 55.23 | 50.55 | ----- | z | ----- | z | 58.91 | f | ||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 56.93 | d | 63.80 | 72.03 | 66.45 | 63.03 | 52.00 | p | ----- | z | ----- | z | 64.45 | g | ||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | 49.45 | 61.30 | 66.58 | 67.81 | 63.63 | 49.71 | ----- | z | ----- | z | 59.75 | f | ||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.73 | 67.45 | 67.03 | 61.33 | 53.71 | ----- | z | ----- | z | 62.25 | g | |||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 59.46 | r | 60.03 | 68.30 | a | 74.10 | 62.17 | 47.43 | a | ----- | z | ----- | z | 62.41 | g | |||
1970 | ----- | z | ----- | z | ----- | z | ----- | z | 51.63 | a | 64.20 | 71.13 | 73.45 | 62.03 | 52.68 | ----- | z | ----- | z | 62.52 | f | |||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.40 | 68.29 | 69.32 | 63.72 | a | 56.87 | ----- | z | ----- | z | 64.32 | g | ||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | 55.80 | f | 63.33 | 66.32 | 68.74 | 59.73 | 47.10 | ----- | z | ----- | z | 61.05 | g | |||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 56.38 | o | 59.47 | 67.35 | 70.06 | 62.97 | a | ----- | z | ----- | z | ----- | z | 64.96 | h | |||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | 54.32 | 63.27 | 70.00 | a | 66.81 | 57.53 | 52.13 | a | ----- | z | ----- | z | 60.68 | f | ||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | 58.39 | c | 61.32 | e | 71.61 | c | 70.37 | a | 59.72 | a | 53.53 | a | ----- | z | ----- | z | 62.49 | f |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | 55.42 | 62.63 | 72.65 | 74.19 | 64.32 | b | 51.00 | c | ----- | z | ----- | z | 63.37 | f | ||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | 57.10 | 62.13 | 67.32 | 66.03 | 58.20 | ----- | z | ----- | z | ----- | z | 62.16 | g | |||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | 56.55 | 62.33 | 67.16 | 70.65 | 62.33 | ----- | z | ----- | z | ----- | z | 63.80 | g | |||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 56.89 | m | 63.10 | 66.35 | 67.16 | 63.53 | ----- | z | ----- | z | ----- | z | 65.04 | h | ||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.97 | a | 71.87 | 72.06 | 60.20 | 51.86 | q | ----- | z | ----- | z | 66.78 | h | |||
1981 | ----- | z | ----- | z | ----- | z | ----- | z | 55.24 | f | 61.87 | 68.94 | 72.94 | 61.66 | a | 51.33 | v | ----- | z | ----- | z | 66.35 | h | |||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | 57.33 | m | 61.38 | a | 67.71 | 66.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | 65.03 | i | |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | 50.54 | r | 61.60 | 72.83 | a | 76.19 | 64.24 | a | ----- | z | ----- | z | ----- | z | 68.72 | h | ||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | 59.80 | p | 61.61 | b | 69.57 | a | 71.71 | 61.39 | b | 52.77 | ----- | z | ----- | z | 63.41 | g | ||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.40 | 68.16 | 68.87 | 61.47 | ----- | z | 51.54 | q | ----- | z | 64.97 | h | ||||
1986 | ----- | z | ----- | z | ----- | z | ----- | z | 66.00 | r | 64.47 | 66.61 | 68.90 | 59.67 | 49.70 | k | ----- | z | ----- | z | 64.91 | h | ||||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | 55.71 | n | 66.63 | 71.74 | 72.00 | 66.60 | 48.38 | w | ----- | z | ----- | z | 69.24 | h | ||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | 56.35 | 68.73 | 72.87 | 70.10 | 62.31 | a | 51.62 | j | ----- | z | ----- | z | 66.07 | g | ||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | 61.35 | n | 58.67 | 69.68 | 69.71 | 64.71 | b | 52.00 | p | ----- | z | ----- | z | 65.69 | h | |||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.07 | c | 69.00 | 70.73 | a | 65.76 | m | ----- | z | ----- | z | ----- | z | 67.94 | i | |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | 62.82 | t | 66.57 | 68.52 | 78.07 | b | 63.43 | b | 52.47 | l | ----- | z | ----- | z | 69.15 | h | ||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.63 | 63.10 | a | 69.80 | a | 62.21 | b | ----- | z | ----- | z | ----- | z | 64.19 | h | |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | 54.21 | q | 62.07 | a | 67.77 | 75.14 | b | 60.10 | 55.50 | y | ----- | z | ----- | z | 66.27 | h | ||
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.69 | a | 69.97 | 75.87 | 64.57 | 56.93 | p | ----- | z | ----- | z | 68.77 | h | |||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.59 | a | 69.66 | b | 71.63 | a | 63.76 | a | 53.88 | o | ----- | z | ----- | z | 67.91 | h |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | 52.64 | q | 65.57 | 69.57 | a | 72.10 | b | 66.73 | 59.14 | q | ----- | z | ----- | z | 68.49 | h | ||
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.63 | a | 78.26 | 72.71 | b | 55.10 | j | ----- | z | ----- | z | 76.20 | i | |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.48 | a | 76.17 | a | 74.47 | a | 66.25 | b | 53.12 | n | ----- | z | ----- | z | 70.84 | h |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.88 | e | 66.87 | 58.10 | a | ----- | z | ----- | z | 66.62 | i | |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | 57.50 | a | 66.43 | 68.60 | a | 77.74 | ----- | z | ----- | z | ----- | z | ----- | z | 67.57 | h | ||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | 59.65 | n | 67.07 | b | 78.04 | c | 73.90 | b | ----- | z | ----- | z | ----- | z | ----- | z | 73.00 | i |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.77 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.77 | k |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | 54.64 | i | 65.80 | 70.52 | b | 69.07 | b | 66.36 | b | 59.64 | t | ----- | z | ----- | z | 67.94 | h | |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.90 | u | 68.50 | f | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 79.04 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.58 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | 48.35 | k | 60.16 | k | 70.58 | s | 76.06 | m | 67.00 | n | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 54.08 | r | 60.23 | q | 69.87 | h | 67.00 | k | 62.38 | q | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.50 | v | 71.19 | d | 73.78 | d | 72.95 | j | ----- | z | ----- | z | ----- | z | 72.48 | j |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | 55.57 | x | 65.56 | u | 72.89 | m | 76.33 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.57 | i | 72.50 | o | 74.86 | x | 65.82 | s | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.24 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.32 | e | 76.71 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.32 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.80 | 24.45 | 32.75 | 45.79 | 54.60 | 62.83 | 69.08 | 70.42 | 61.73 | 51.91 | 35.61 | 26.39 | 47.26 | |||||||||||||
S.D. | 5.20 | 0.54 | 4.85 | 3.51 | 3.10 | 2.58 | 2.94 | 3.42 | 3.03 | 2.74 | 2.47 | 4.35 | 1.08 | |||||||||||||
SKEW | -0.70 | 0.08 | 0.00 | 0.01 | -0.57 | 0.06 | 0.74 | 0.24 | 0.79 | 0.37 | -0.09 | 0.12 | 0.00 | |||||||||||||
MAX | 25.10 | 25.00 | 37.61 | 49.70 | 59.87 | 68.73 | 78.04 | 78.26 | 72.71 | 58.10 | 38.53 | 31.45 | 48.03 | |||||||||||||
MIN | 15.81 | 23.93 | 27.90 | 41.90 | 46.28 | 56.48 | 62.48 | 61.42 | 55.23 | 47.10 | 31.93 | 21.77 | 46.49 | |||||||||||||
YRS | 3 | 3 | 3 | 4 | 28 | 61 | 63 | 62 | 56 | 33 | 9 | 4 | 2 |