YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | 16.35 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 16.35 | k |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.33 | a | 35.45 | 27.92 | 34.90 | i | ||
1940 | 18.73 | 21.00 | 29.69 | 36.83 | 49.39 | 59.83 | 64.53 | 62.33 | a | 50.95 | a | 39.28 | f | 24.44 | f | 20.60 | 41.39 | b | ||||||||
1941 | 18.10 | 22.53 | k | 25.58 | 30.35 | 46.03 | 50.33 | 58.95 | 58.52 | 45.81 | c | 38.81 | 31.03 | 21.08 | 38.60 | a | ||||||||||
1942 | 16.21 | 10.48 | 20.35 | 36.23 | 41.71 | 53.50 | 62.08 | a | 59.85 | 50.72 | 43.08 | 30.43 | 23.06 | 37.31 | ||||||||||||
1943 | 17.65 | a | 20.18 | 23.45 | 42.32 | 44.18 | 52.47 | k | 61.20 | a | 58.90 | 54.35 | 41.52 | b | 31.34 | a | 21.13 | a | 37.84 | a | ||||||
1944 | 14.60 | a | 15.84 | a | 21.86 | b | 29.73 | h | 46.67 | d | 50.30 | h | 59.29 | 59.13 | d | 52.33 | d | 44.12 | b | 27.85 | d | 22.24 | j | 37.96 | c | |
1945 | 22.34 | i | 17.83 | j | 22.45 | k | 31.60 | o | 45.03 | a | 47.80 | 60.19 | 58.98 | b | 49.48 | d | 41.96 | g | ----- | z | 19.05 | c | 46.76 | f | ||
1946 | 17.95 | 21.04 | a | 30.52 | 43.36 | a | 44.11 | 56.65 | 63.68 | 61.55 | 53.68 | e | 36.25 | a | 24.04 | b | 23.62 | e | 39.70 | |||||||
1947 | 13.84 | b | 23.91 | 29.69 | w | 35.91 | c | 49.27 | a | 50.18 | 61.32 | 58.57 | c | 53.41 | g | 43.84 | 23.98 | b | 17.68 | q | 40.09 | c | ||||
1948 | 17.72 | f | 15.85 | l | 17.70 | a | 36.52 | g | 46.76 | 54.00 | a | 61.22 | a | 59.63 | a | 54.57 | b | 42.52 | g | 23.29 | f | 14.42 | l | 48.98 | f | |
1949 | ----- | z | 4.67 | y | ----- | z | 36.53 | m | 44.39 | h | 46.45 | t | 60.31 | b | 61.19 | 54.84 | b | 38.08 | 39.52 | b | 18.12 | b | 45.34 | f | ||
1950 | ----- | z | ----- | z | ----- | z | 36.23 | 41.59 | d | 52.73 | 57.52 | 58.50 | 51.04 | d | 46.18 | a | 33.22 | ----- | z | 47.13 | d | |||||
1951 | 23.50 | y | ----- | z | ----- | z | 36.69 | d | 46.67 | b | 44.54 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.68 | j |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | 46.24 | d | 51.32 | 57.50 | b | 57.44 | 52.76 | e | 42.32 | ----- | z | ----- | z | 51.26 | f | |||
1953 | ----- | z | ----- | z | ----- | z | 33.19 | v | 37.25 | a | 53.17 | d | 59.69 | 56.03 | 50.55 | 41.50 | 27.16 | n | ----- | z | 49.70 | f | ||||
1954 | ----- | z | ----- | z | ----- | z | 42.55 | s | 46.93 | p | ----- | z | 59.91 | o | 55.82 | 48.08 | 38.77 | c | 33.45 | k | 23.96 | s | 47.56 | i | ||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 43.27 | 49.25 | 55.84 | o | 58.89 | m | 52.07 | 42.25 | a | 29.35 | t | ----- | z | 46.71 | h | |||
1956 | ----- | z | ----- | z | ----- | z | 38.86 | p | 47.23 | 55.17 | a | 59.60 | 56.67 | a | 53.23 | 44.07 | j | 18.77 | s | ----- | z | 54.38 | g | |||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.60 | 58.85 | 56.95 | a | 48.80 | 37.61 | ----- | z | ----- | z | 50.76 | g | ||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | 51.21 | l | 52.95 | 57.89 | 60.32 | 50.55 | a | 42.98 | 37.60 | y | ----- | z | 52.94 | g | ||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | 44.72 | d | 58.55 | 62.77 | 58.87 | a | 48.50 | 41.13 | ----- | z | ----- | z | 52.42 | f | ||||
1960 | ----- | z | ----- | z | ----- | z | 30.92 | x | 45.40 | 56.30 | 63.65 | a | 60.34 | 54.10 | a | 40.87 | e | ----- | z | ----- | z | 53.44 | f | |||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 45.79 | 58.21 | b | 62.55 | 60.56 | 44.95 | b | 38.34 | c | ----- | z | ----- | z | 51.73 | f | |||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 44.29 | e | 53.29 | a | 60.05 | b | 59.27 | c | 52.87 | d | 43.64 | f | ----- | z | ----- | z | 53.95 | g |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | 47.38 | o | 51.77 | b | ----- | z | 59.14 | b | ----- | z | 47.74 | ----- | z | ----- | z | 52.88 | i | |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.68 | 52.17 | 44.47 | a | ----- | z | ----- | z | 51.44 | i | ||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.06 | 56.11 | 43.33 | ----- | z | ----- | z | ----- | z | 52.50 | i | |||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.37 | 60.82 | 50.77 | 40.55 | ----- | z | ----- | z | 53.63 | h | ||||
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 | 50.59 | a | 60.07 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.59 | k |
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 | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | 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 | ----- | 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 | 27.55 | t | 18.15 | 18.15 | k | |
2014 | 24.42 | 23.62 | 30.04 | r | ----- | z | 46.45 | a | 53.80 | 63.92 | 56.69 | 53.47 | 43.76 | 29.55 | 23.26 | 41.89 | b | |||||||||
2015 | 25.02 | 28.93 | 34.68 | 37.63 | 42.32 | 58.68 | 58.79 | 59.97 | 55.05 | 48.37 | d | ----- | z | 17.05 | c | 42.41 | a | |||||||||
2016 | 17.61 | 25.53 | 30.24 | 36.60 | 43.40 | 59.98 | 62.66 | 59.98 | 51.92 | 43.37 | 34.28 | 17.68 | 40.27 | |||||||||||||
2017 | 16.37 | 25.13 | a | 33.12 | a | 35.45 | a | 44.69 | 57.98 | a | 63.68 | c | 60.44 | 51.45 | 39.58 | 35.25 | 29.02 | 41.01 | ||||||||
2018 | 24.63 | 23.20 | 27.90 | a | 38.13 | 47.61 | 58.75 | 65.23 | 61.94 | 56.14 | a | 39.63 | a | 27.88 | 18.37 | 40.78 | ||||||||||
2019 | 17.73 | 15.32 | 24.60 | a | 36.52 | 39.93 | a | 51.77 | 62.24 | 62.13 | 53.43 | 33.98 | 31.45 | 19.63 | a | 37.39 | ||||||||||
2020 | 17.78 | a | 18.76 | 28.97 | 35.20 | 48.03 | a | 54.09 | a | 62.83 | a | 66.48 | 53.90 | a | 45.13 | 31.22 | a | 21.35 | 40.31 | |||||||
2021 | 20.02 | 19.80 | a | 26.77 | 35.62 | 46.89 | 61.98 | 67.08 | a | 61.79 | 56.25 | 40.52 | j | ----- | z | ----- | z | 44.02 | c | |||||||
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.25 | m | 62.61 | 57.95 | 43.74 | 25.00 | 18.68 | 41.60 | g | |||||
2023 | ----- | z | ----- | z | ----- | z | ----- | z | 35.57 | x | 54.27 | j | 65.86 | b | 62.18 | a | 46.78 | a | 29.74 | 25.72 | 24.23 | 42.42 | f | |||
2024 | 20.92 | 21.33 | 23.11 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.78 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.85 | 20.65 | 26.57 | 36.87 | 45.00 | 54.44 | 61.47 | 59.64 | 51.67 | 41.30 | 30.42 | 21.22 | 39.54 | |||||||||||||
S.D. | 3.38 | 4.60 | 4.79 | 2.99 | 2.77 | 3.69 | 2.55 | 2.27 | 3.30 | 3.91 | 4.36 | 3.42 | 1.55 | |||||||||||||
SKEW | 0.66 | -0.39 | -0.10 | 0.41 | -0.84 | 0.27 | 0.22 | 0.49 | -0.62 | -0.77 | 0.19 | 0.90 | -0.72 | |||||||||||||
MAX | 25.02 | 28.93 | 34.68 | 43.36 | 49.39 | 61.98 | 67.08 | 66.48 | 57.95 | 48.37 | 39.52 | 29.02 | 41.01 | |||||||||||||
MIN | 13.84 | 10.48 | 17.70 | 30.35 | 37.25 | 47.80 | 57.50 | 55.82 | 43.33 | 29.74 | 23.98 | 17.05 | 37.31 | |||||||||||||
YRS | 16 | 16 | 15 | 15 | 27 | 28 | 31 | 35 | 34 | 30 | 17 | 18 | 7 |