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 | 36.48 | f | 23.50 | 15.19 | 19.35 | j | ||
1941 | 9.61 | 8.79 | 12.32 | 29.37 | 32.52 | 46.93 | a | 50.32 | 54.42 | 48.30 | 39.04 | c | 27.70 | 18.77 | a | 31.51 | ||||||||||
1942 | 9.03 | 13.59 | a | 23.52 | 31.87 | 36.90 | 42.67 | 50.26 | 53.55 | b | 45.33 | 37.77 | 23.73 | 10.23 | a | 31.54 | ||||||||||
1943 | 0.65 | 4.70 | a | 6.97 | 24.93 | 35.13 | 41.07 | 47.20 | a | 53.52 | 43.37 | 37.84 | 24.93 | 11.00 | o | 29.12 | a | |||||||||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | 35.00 | 40.53 | 46.55 | 51.74 | 47.43 | 37.10 | 31.17 | 13.77 | 37.91 | d | ||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | 35.28 | m | 41.43 | 50.66 | b | 56.13 | 46.27 | 36.90 | 24.73 | 12.47 | l | 42.69 | f | |||||
1946 | ----- | z | ----- | z | ----- | z | 29.73 | 36.00 | 42.83 | 49.35 | 52.45 | 47.70 | c | 39.48 | 25.90 | ----- | z | 40.43 | d | |||||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | 33.45 | 46.17 | a | 50.03 | a | 50.90 | 45.25 | b | 43.00 | 24.80 | ----- | z | 41.94 | e | ||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | 35.65 | 42.70 | 51.17 | a | 57.40 | a | 54.10 | t | ----- | z | ----- | z | ----- | z | 46.73 | h | ||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | 37.03 | 44.79 | a | 50.26 | 55.29 | 45.67 | 39.37 | a | 28.64 | h | ----- | z | 45.40 | f | ||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | 34.89 | l | 41.37 | 43.84 | 45.45 | 43.90 | 35.35 | e | 23.08 | d | ----- | z | 38.83 | f | ||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 38.12 | f | 41.58 | d | 48.81 | 49.19 | 44.83 | 36.23 | ----- | z | ----- | z | 44.13 | g | ||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | 37.71 | 43.83 | a | 48.68 | 53.39 | 48.27 | 33.97 | 29.94 | m | ----- | z | 44.31 | f | |||||
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 36.06 | 43.30 | 51.19 | 57.06 | 47.17 | 40.19 | 32.00 | q | ----- | z | 45.83 | f | ||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | 33.42 | 43.40 | 49.87 | 55.13 | 48.10 | 37.65 | ----- | z | ----- | z | 44.59 | f | ||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 38.26 | 46.13 | 54.43 | a | 59.65 | 48.57 | 40.29 | 31.86 | w | ----- | z | 47.89 | f | |||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | 33.59 | b | 44.33 | c | 49.35 | 52.47 | a | 43.86 | b | 40.32 | 33.47 | m | ----- | z | 43.99 | f | ||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 38.82 | t | 42.50 | 47.45 | 51.21 | b | 44.54 | b | 39.06 | ----- | z | ----- | z | 44.95 | g | |||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.80 | 49.26 | 54.03 | 47.87 | ----- | z | ----- | z | ----- | z | 48.24 | h | ||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.20 | 52.84 | 56.13 | 47.67 | ----- | z | ----- | z | ----- | z | 50.21 | h | ||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.70 | 48.90 | 53.87 | 47.31 | a | 39.10 | ----- | z | ----- | z | 46.38 | g | ||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 35.32 | 43.87 | 49.76 | b | 54.13 | a | 49.57 | b | 39.94 | ----- | z | ----- | z | 45.43 | f | |||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 37.39 | 41.00 | c | 47.00 | c | 55.53 | a | 45.34 | a | 40.32 | c | 28.17 | x | ----- | z | 44.43 | f | |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | 35.72 | b | 42.74 | c | 51.87 | 54.85 | e | 50.41 | h | 50.48 | f | ----- | z | ----- | z | 46.30 | h | |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | 41.58 | 41.13 | 52.00 | 51.43 | a | 44.97 | 36.10 | ----- | z | ----- | z | 44.54 | f | |||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | 36.35 | 44.00 | 47.35 | 49.76 | b | 43.33 | 37.97 | ----- | z | ----- | z | 43.13 | f | |||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 33.92 | e | 42.97 | 50.97 | 52.48 | 48.87 | 40.33 | p | ----- | z | ----- | z | 45.84 | g | ||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | 32.03 | 42.67 | 47.32 | 51.32 | 48.53 | 36.13 | ----- | z | ----- | z | 43.00 | f | ||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.47 | 45.53 | a | 48.68 | 47.67 | 40.10 | ----- | z | ----- | z | 44.89 | g | ||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | 34.77 | r | 40.83 | 49.37 | a | 57.00 | 49.07 | 35.48 | b | ----- | z | ----- | z | 46.35 | g | |||
1970 | ----- | z | ----- | z | ----- | z | ----- | z | 36.03 | 43.23 | 48.65 | 55.77 | 48.50 | 39.48 | ----- | z | ----- | z | 45.28 | f | ||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | 35.69 | e | 40.77 | 47.97 | 50.03 | 48.63 | 42.84 | ----- | z | ----- | z | 44.32 | f | |||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | 37.28 | f | 41.63 | 46.48 | 52.65 | 44.40 | 34.77 | ----- | z | ----- | z | 43.99 | g | |||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 39.38 | o | 42.52 | a | 48.71 | 54.87 | 48.24 | a | ----- | z | ----- | z | ----- | z | 48.58 | h | ||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | 34.13 | 42.37 | 49.13 | 53.10 | 42.37 | 34.90 | a | ----- | z | ----- | z | 42.66 | f | |||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | 37.68 | c | 42.15 | c | 50.93 | d | 55.33 | a | 44.11 | c | 39.81 | ----- | z | ----- | z | 45.00 | f | |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | 36.84 | 43.83 | 51.13 | 54.94 | 42.86 | b | 34.29 | c | ----- | z | ----- | z | 43.98 | f | ||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | 37.58 | 42.23 | 49.58 | 50.48 | 47.27 | ----- | z | ----- | z | ----- | z | 45.43 | g | |||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | 37.06 | 42.23 | 48.52 | 53.45 | 48.97 | ----- | z | ----- | z | ----- | z | 46.05 | g | |||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 36.44 | m | 42.60 | 47.90 | 51.06 | 47.43 | ----- | z | ----- | z | ----- | z | 47.25 | h | ||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.62 | a | 50.68 | 56.97 | 45.83 | 35.36 | q | ----- | z | ----- | z | 49.02 | h | |||
1981 | ----- | z | ----- | z | ----- | z | ----- | z | 36.12 | f | 41.86 | a | 50.19 | 57.16 | 47.41 | a | 35.18 | t | ----- | z | ----- | z | 49.16 | h | ||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | 38.63 | l | 41.07 | a | 48.32 | 48.50 | a | ----- | z | ----- | z | ----- | z | ----- | z | 45.96 | i | |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | 38.36 | q | 43.30 | 51.81 | 60.45 | 51.53 | ----- | z | ----- | z | ----- | z | 51.77 | h | ||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | 40.80 | p | 44.83 | a | 50.07 | a | 57.03 | 47.38 | a | 42.06 | ----- | z | ----- | z | 48.27 | g | ||
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.67 | 49.74 | 53.19 | 48.17 | ----- | z | 37.40 | o | ----- | z | 48.44 | h | ||||
1986 | ----- | z | ----- | z | ----- | z | ----- | z | 43.85 | r | 43.80 | 50.35 | 53.84 | 47.33 | 36.25 | k | ----- | z | ----- | z | 48.83 | h | ||||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | 39.22 | m | 47.37 | 55.19 | 55.55 | 51.47 | 31.88 | w | ----- | z | ----- | z | 52.39 | h | ||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | 36.39 | 44.83 | 53.10 | b | 55.58 | 48.17 | 37.10 | k | ----- | z | ----- | z | 47.61 | g | ||||
1989 | ----- | z | ----- | z | ----- | z | ----- | z | 38.82 | n | 41.40 | 48.74 | 52.83 | b | 48.59 | a | 36.53 | p | ----- | z | ----- | z | 47.89 | h | ||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.90 | 50.10 | 52.74 | 48.90 | j | ----- | z | ----- | z | ----- | z | 48.25 | i | |||
1991 | ----- | z | ----- | z | ----- | z | ----- | z | 41.38 | r | 44.20 | 47.94 | 56.30 | a | 45.93 | a | 35.33 | m | ----- | z | ----- | z | 48.59 | h | ||
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.93 | 46.13 | 52.03 | a | 46.20 | ----- | z | ----- | z | ----- | z | 46.57 | h | |||
1993 | ----- | z | ----- | z | ----- | z | ----- | z | 36.93 | q | 43.33 | 48.77 | 55.84 | 44.43 | 37.17 | y | ----- | z | ----- | z | 48.09 | h | ||||
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.87 | 50.23 | 57.39 | 47.47 | 42.12 | n | ----- | z | ----- | z | 49.99 | h | ||||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.77 | 47.90 | 52.32 | 50.17 | 38.22 | m | ----- | z | ----- | z | 48.29 | h | ||||
1997 | ----- | z | ----- | z | ----- | z | ----- | z | 37.86 | q | 44.07 | 48.93 | a | 53.33 | a | 50.97 | 42.07 | p | ----- | z | ----- | z | 49.33 | h | ||
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.10 | 59.03 | 52.33 | 41.90 | j | ----- | z | ----- | z | 55.82 | i | |||
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.13 | 54.19 | 55.29 | 50.21 | a | 38.76 | n | ----- | z | ----- | z | 51.46 | h | |||
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.94 | 45.90 | 40.22 | h | ----- | z | ----- | z | 49.42 | j | ||
2001 | ----- | z | ----- | z | ----- | z | ----- | z | 37.35 | 42.23 | 48.57 | a | 56.71 | ----- | z | ----- | z | ----- | z | ----- | z | 46.22 | h | |||
2002 | ----- | z | ----- | z | ----- | z | ----- | z | 35.11 | m | 43.82 | b | 54.89 | c | 55.90 | b | ----- | z | ----- | z | ----- | z | ----- | z | 51.54 | i |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.39 | k | |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | 37.36 | f | 43.20 | 49.90 | 51.16 | 49.07 | 40.42 | s | ----- | z | ----- | z | 48.33 | 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 | 56.50 | u | 49.70 | 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 | 56.84 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.58 | e | ----- | z | ----- | z | ----- | z | ----- | z | 58.58 | k |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | 35.32 | l | 43.53 | k | 46.33 | s | 55.94 | m | 50.44 | n | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 37.92 | r | 41.69 | q | 47.22 | h | 51.95 | k | 47.08 | q | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.62 | v | 52.85 | d | 55.89 | d | 53.95 | j | ----- | z | ----- | z | ----- | z | 54.37 | j |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | 37.44 | v | 44.89 | u | 45.22 | m | 54.67 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.95 | i | 51.00 | o | 58.43 | x | 52.00 | o | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.77 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.77 | k |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.92 | f | 54.38 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 6.43 | 9.03 | 14.27 | 28.98 | 35.92 | 43.03 | 49.79 | 54.01 | 47.14 | 38.29 | 25.50 | 14.49 | 31.52 | |||||||||||||
S.D. | 5.02 | 4.45 | 8.44 | 2.91 | 1.98 | 1.54 | 2.33 | 2.87 | 2.29 | 2.45 | 2.54 | 3.53 | 0.02 | |||||||||||||
SKEW | -0.70 | 0.10 | 0.40 | -0.64 | 0.30 | 0.79 | 0.42 | -0.30 | -0.04 | -0.01 | 1.32 | 0.01 | 0.00 | |||||||||||||
MAX | 9.61 | 13.59 | 23.52 | 31.87 | 41.58 | 47.37 | 56.10 | 60.45 | 52.33 | 43.00 | 31.17 | 18.77 | 31.54 | |||||||||||||
MIN | 0.65 | 4.70 | 6.97 | 24.93 | 32.03 | 40.53 | 43.84 | 45.45 | 42.37 | 33.97 | 23.08 | 10.23 | 31.51 | |||||||||||||
YRS | 3 | 3 | 3 | 4 | 29 | 60 | 64 | 64 | 56 | 31 | 9 | 4 | 2 |