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 | 43.00 | h | 29.10 | 21.77 | 25.44 | j | ||
1941 | 17.05 | 16.61 | 22.53 | 38.48 | 45.32 | a | 56.10 | a | 60.84 | 62.02 | a | 54.48 | a | 45.89 | d | 33.07 | 25.13 | a | 39.79 | |||||||
1942 | 17.06 | 19.02 | a | 30.56 | 40.78 | 45.31 | 52.17 | a | 59.45 | 61.29 | b | 52.13 | 44.08 | 30.50 | 16.31 | b | 39.06 | |||||||||
1943 | 8.23 | 14.69 | b | 17.44 | 33.42 | 43.68 | a | 51.10 | 56.57 | a | 60.74 | 51.02 | 44.45 | 29.80 | 19.16 | o | 37.38 | a | ||||||||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | 44.26 | 49.83 | 57.26 | 60.21 | 53.87 | 44.71 | 34.85 | 18.87 | 45.48 | d | ||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | 42.81 | m | 49.03 | a | 57.66 | b | 63.10 | a | 53.43 | a | 42.69 | 29.43 | 16.55 | l | 49.22 | f | ||
1946 | ----- | z | ----- | z | ----- | z | 36.85 | 44.28 | a | 52.03 | 58.65 | a | 60.02 | c | 52.94 | f | 45.68 | 31.87 | ----- | z | 47.05 | e | ||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | 41.47 | 53.15 | c | 58.15 | a | 58.65 | 52.23 | b | 49.90 | a | 28.88 | ----- | z | 48.92 | e | |||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | 45.55 | 52.85 | 59.65 | a | 62.52 | a | 57.90 | t | ----- | z | ----- | z | ----- | z | 55.14 | h | ||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | 45.35 | 54.36 | a | 58.73 | 62.63 | 51.58 | 45.90 | a | 32.32 | h | ----- | z | 53.09 | f | ||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | 43.71 | l | 51.48 | 53.16 | 53.44 | 51.33 | 44.54 | e | 27.19 | f | ----- | z | 50.79 | g | ||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 48.18 | f | 49.69 | d | 59.16 | 58.50 | 51.85 | 42.00 | ----- | z | ----- | z | 52.24 | g | ||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | 47.18 | 53.72 | a | 58.37 | a | 62.42 | 55.74 | a | 41.17 | a | 35.85 | m | ----- | z | 53.10 | f | ||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 45.03 | b | 53.37 | 60.84 | 64.53 | 54.33 | 48.45 | 38.00 | q | ----- | z | 54.43 | f | |||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | 39.74 | b | 54.72 | a | 60.15 | a | 62.82 | 53.77 | 44.58 | a | ----- | z | ----- | z | 52.63 | f | ||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 49.06 | 54.92 | 63.65 | a | 66.77 | 55.78 | 46.39 | 36.86 | w | ----- | z | 56.10 | f | |||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | 43.59 | c | 56.22 | g | 58.65 | a | 60.40 | a | 50.73 | d | 47.98 | 38.50 | m | ----- | z | 52.27 | g | |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 48.86 | t | 52.12 | 58.23 | 61.50 | b | 53.05 | b | 45.63 | ----- | z | ----- | z | 54.11 | g | |||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.65 | 58.11 | 61.82 | 54.42 | ----- | z | ----- | z | ----- | z | 56.25 | h | ||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.47 | 61.68 | 63.19 | 55.13 | ----- | z | ----- | z | ----- | z | 58.62 | h | ||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.65 | 57.63 | 60.92 | a | 53.57 | c | 45.27 | ----- | z | ----- | z | 54.21 | g | |||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 44.81 | 54.33 | a | 58.30 | d | 62.42 | a | 56.21 | b | 45.58 | ----- | z | ----- | z | 53.61 | f | ||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 45.40 | 50.09 | c | 55.39 | d | 61.24 | b | 52.34 | a | 46.32 | c | 33.58 | x | ----- | z | 51.80 | f | |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | 44.52 | c | 51.67 | c | 60.34 | 61.44 | f | 56.07 | h | 55.20 | f | ----- | z | ----- | z | 52.17 | i | |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | 50.63 | 50.22 | 60.69 | 57.92 | a | 51.14 | a | 42.55 | ----- | z | ----- | z | 52.19 | f | ||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | 45.19 | 53.17 | 56.33 | a | 57.79 | b | 49.28 | 44.26 | ----- | z | ----- | z | 51.00 | f | ||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 45.33 | e | 53.38 | 61.50 | 59.47 | 55.95 | 46.17 | p | ----- | z | ----- | z | 55.13 | g | ||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | 40.74 | 51.98 | 56.95 | 59.56 | 56.08 | 42.92 | ----- | z | ----- | z | 51.37 | f | ||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.10 | 56.58 | a | 57.85 | 54.50 | 46.90 | ----- | z | ----- | z | 53.59 | g | ||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 47.12 | r | 50.43 | 58.83 | a | 65.55 | 55.62 | 41.14 | c | ----- | z | ----- | z | 54.31 | g | |||
1970 | ----- | z | ----- | z | ----- | z | ----- | z | 43.73 | a | 53.72 | 59.89 | 64.61 | 55.27 | 46.08 | ----- | z | ----- | z | 53.88 | f | |||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.08 | 58.13 | 59.68 | 56.09 | a | 49.85 | ----- | z | ----- | z | 55.17 | g | ||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | 46.54 | f | 52.48 | 56.40 | 60.69 | 52.07 | 40.94 | ----- | z | ----- | z | 52.52 | g | |||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 47.88 | o | 50.88 | a | 58.03 | 62.47 | 55.60 | a | ----- | z | ----- | z | ----- | z | 56.75 | h | ||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | 44.23 | 52.82 | 59.48 | a | 59.95 | 49.95 | 43.52 | a | ----- | z | ----- | z | 51.66 | f | ||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | 48.04 | c | 51.69 | f | 61.42 | f | 63.03 | b | 51.63 | c | 46.62 | a | ----- | z | ----- | z | 52.33 | h |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | 46.13 | 53.23 | 61.89 | 64.56 | 53.59 | b | 42.64 | c | ----- | z | ----- | z | 53.67 | f | ||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | 47.34 | 52.18 | 58.45 | 58.26 | 52.73 | ----- | z | ----- | z | ----- | z | 53.79 | g | |||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | 46.81 | 52.28 | 57.84 | 62.05 | 55.65 | ----- | z | ----- | z | ----- | z | 54.93 | g | |||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 46.67 | m | 52.85 | 57.13 | 59.11 | 55.48 | ----- | z | ----- | z | ----- | z | 56.14 | h | ||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.79 | a | 61.27 | 64.52 | 53.02 | 43.61 | q | ----- | z | ----- | z | 57.90 | h | |||
1981 | ----- | z | ----- | z | ----- | z | ----- | z | 45.68 | f | 51.90 | a | 59.56 | 65.05 | 54.53 | a | 43.83 | v | ----- | z | ----- | z | 57.76 | h | ||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | 48.00 | m | 51.22 | a | 58.02 | 57.25 | a | ----- | z | ----- | z | ----- | z | ----- | z | 55.50 | i | |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | 44.35 | r | 52.45 | 62.25 | a | 68.32 | 57.81 | a | ----- | z | ----- | z | ----- | z | 60.21 | h | ||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | 50.30 | p | 53.30 | b | 59.82 | a | 64.37 | 54.48 | b | 47.42 | ----- | z | ----- | z | 55.88 | g | ||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.03 | 58.95 | 61.03 | 54.82 | ----- | z | 44.69 | q | ----- | z | 56.71 | h | ||||
1986 | ----- | z | ----- | z | ----- | z | ----- | z | 54.92 | r | 54.13 | 58.48 | 61.37 | 53.50 | 42.98 | k | ----- | z | ----- | z | 56.87 | h | ||||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | 47.44 | n | 57.00 | 63.47 | 63.77 | 59.03 | 40.12 | w | ----- | z | ----- | z | 60.82 | h | ||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | 46.37 | 56.78 | 63.12 | b | 62.84 | 55.31 | a | 44.00 | k | ----- | z | ----- | z | 56.88 | g | |||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | 50.09 | n | 50.03 | 59.21 | 61.33 | b | 56.59 | b | 44.27 | p | ----- | z | ----- | z | 56.79 | h | ||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.93 | c | 59.55 | 61.77 | a | 56.97 | m | ----- | z | ----- | z | ----- | z | 58.08 | i | |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | 52.09 | t | 55.38 | 58.23 | 67.19 | b | 54.75 | b | 43.32 | n | ----- | z | ----- | z | 58.89 | h | ||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.78 | 54.63 | a | 60.92 | a | 54.18 | b | ----- | z | ----- | z | ----- | z | 55.38 | h | |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | 45.57 | q | 52.72 | a | 58.27 | 65.34 | b | 52.27 | 46.33 | y | ----- | z | ----- | z | 57.15 | h | ||
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.86 | a | 60.10 | 66.63 | 56.02 | 49.80 | p | ----- | z | ----- | z | 59.40 | h | |||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.69 | a | 58.81 | b | 62.02 | a | 57.00 | a | 45.88 | o | ----- | z | ----- | z | 58.13 | h |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | 45.25 | q | 54.82 | 59.25 | a | 62.64 | c | 58.85 | 50.54 | q | ----- | z | ----- | z | 58.89 | h | ||
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.92 | a | 68.65 | 62.75 | b | 48.50 | j | ----- | z | ----- | z | 66.10 | i | |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.34 | a | 65.28 | a | 65.18 | a | 58.41 | b | 46.12 | o | ----- | z | ----- | z | 61.31 | h |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.40 | e | 56.38 | 48.89 | h | ----- | z | ----- | z | 60.39 | j | |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | 47.40 | a | 54.33 | 58.58 | a | 67.23 | ----- | z | ----- | z | ----- | z | ----- | z | 56.89 | h | ||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | 47.50 | n | 55.45 | b | 66.46 | c | 64.90 | b | ----- | z | ----- | z | ----- | z | ----- | z | 62.27 | i |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.47 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.47 | k |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | 46.11 | i | 54.50 | 60.40 | b | 60.05 | b | 57.79 | b | 50.68 | t | ----- | z | ----- | z | 58.18 | 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 | 64.70 | u | 59.17 | g | ----- | 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 | 67.94 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.32 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | 41.68 | l | 51.84 | k | 58.46 | s | 66.00 | m | 58.72 | n | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 46.00 | r | 50.96 | q | 58.54 | h | 59.48 | k | 54.73 | q | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.06 | v | 62.02 | d | 64.83 | d | 63.45 | j | ----- | z | ----- | z | ----- | z | 63.43 | j |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | 45.83 | y | 55.22 | u | 59.06 | m | 65.50 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.76 | i | 61.75 | o | 66.64 | x | 58.73 | s | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.04 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.94 | f | 66.19 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.11 | 16.77 | 23.51 | 37.38 | 45.23 | 52.91 | 59.38 | 62.18 | 54.46 | 45.03 | 30.94 | 20.52 | 39.42 | |||||||||||||
S.D. | 5.10 | 2.17 | 6.62 | 3.10 | 2.32 | 1.83 | 2.53 | 2.93 | 2.50 | 2.37 | 2.14 | 3.80 | 0.52 | |||||||||||||
SKEW | -0.71 | 0.14 | 0.27 | -0.28 | -0.17 | 0.12 | 0.72 | -0.10 | 0.51 | 0.14 | 0.79 | 0.15 | 0.00 | |||||||||||||
MAX | 17.06 | 19.02 | 30.56 | 40.78 | 50.63 | 57.00 | 66.92 | 68.65 | 62.75 | 49.90 | 34.85 | 25.13 | 39.79 | |||||||||||||
MIN | 8.23 | 14.69 | 17.44 | 33.42 | 39.74 | 49.03 | 53.16 | 53.44 | 49.28 | 40.94 | 28.88 | 16.31 | 39.06 | |||||||||||||
YRS | 3 | 3 | 3 | 4 | 28 | 58 | 62 | 62 | 55 | 31 | 8 | 4 | 2 |